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Motorbike engine oil is added to a motorbike’s engine for several reasons. The first is obvious, motorbike oil acts as a lubricant to ensure your engine operates correctly, with almost no metal to metal contact – everything is coated in a thin film of oil. Motorbike engine oil also has several other important tasks to do. One such task is to circulate throughout the engine to cool engine parts that do not get near a water jacket.


Motorcycle piston rings do not perfectly seal, & by-products of combustion such as particles of carbon will slip past into the engine. In a motorcycle’s engine, these carbon particles can cause a lot of damage. Motorbike oil holds these carbon particles in suspension until the oil filter can grab them. Finally, motorcycles engines get internal build ups of tars, waxes, and other gunk. Motorbike engine oil keeps the bike’s engine clean by dissolving and removing these.


It is for these reasons that it is important to check your motorbikes oil levels regularly as not only does having a good level of oil improve the performance of the bikes engine it will also keep it healthy thus extending the bikes life expectancy.


Choosing The Right Motorbike Engine Oil

Using the right oil is just as important as having oil in the engine as there are so many different types of oils on the market. Oils designed for automotive engines should not be used in motorcycles and you should seek out specialized motorbike oil where possible.


There are some special considerations to consider when choosing the right motorbike oil for your bike.


  1. Wet Clutches – in a motorbike clutch the oil flows through the clutch and if the motorbike oil used has too much molybdenum, this can cause the clutch to start slipping. For this reason, users should avoid energy conserving motorbike oils as these contain friction modifier additives which cause clutch slipping. 0w-20 and 5w-30 oils should not be used in a motorcycle.


  1. Sporadic Use – people who use their motorcycles only sporadically might see that the oil has drained into the sump, leaving no protective film in the engine. This can cause the next start to be particularly hard on the engine. The film strength is very important in the motorbike oil for bikes that are only used sporadically. Synthetic motorbike oil will have much higher film strength than petroleum oil. This will cause the oil to take longer to drain off the engine into the sump.


Key Advantages To Using Synthetic Oils:

  • A higher viscosity index than mineral base oils.
  • Better resistance to thinning at high temperatures and thickening at low temperatures.
  • Longer lasting in service without radical changes in viscosity.


To help you with choosing the right oil, you can try to send inquiry to Min June Hong. The company specializes in kinds of oil and lubricants. You can find motorcycle lubricants, agricultural lubricants, synthetic lubricant, MoS2 Grease, fuel injector cleaner, and so on products on their site. Do not hesitate to contact with Min June Hong to get the best oil for your motorbike.


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How to Choose the Right Jogging Socks

On March 31, 2018, in Health, Manufacturer, Sport, by Jasmie K.

Jogging Socks?


Yes, these are socks made specifically for runners. What makes them different from your typical casual socks is that they are designed to keep your feet dry and comfortable while jogging for prolonged periods of time.


When you run, especially if you sweat a lot (who doesn’t), it’s crucial to equip your feet and your shoes with socks that are comfortable, functional, durable, even fashionable (if you are into that).


The Importance of Jogging Socks


Oh, let me assume you. Socks are not a second-thought accessory. In fact, picking the right jogging socks is just as important as choosing the right shoes. Not only can the proper socks improve your running performance, but can also help keep your feet healthy and happy.


An ill-fitting pair of socks can result in toenail problems, bursitis, blisters, infections, and other serious foot issues that may compromise your running. And you don’t want any of that.


Whether you are going for a short jog around the block, or are conquering long, treacherous trails, the right pair can set the stage for a comfortable, pain-free workout experience.


In short, jogging sucks without the right socks.


And here is the good news. Buying jogging socks is not rocket science.


That’s why today, dear reader, I’m spilling the beans on proper sock selection. In this post, you’ll find a list of handy tips and practical guidelines to help you make the right sock choice.


Use the following tips to help you choose jogging socks that will help your feet dry and comfortable so you can ensure consistent running success.


So, are you excited? Then here we go.


The Many Flavors


Athletic socks come in a variety of fabric types, sizes, thicknesses, and cushioning features. These are the main things to consider when selecting the right jogging socks.


Consider the following elements when choosing your jogging socks.


  1. Say No to Cotton

The most important factor to consider when cherry-picking socks for running is, hands down, the material.


As a rule of thumb, steer clear of cotton the entire time.


Why? Cotton is spongy and absorbent. Once your feet get wet (whether due to sweat or after stepping in a puddle), they’ll stay wet, and the moisture won’t get “wicked away.”


And here is the real bad news. Running in damp socks sets the ideal breeding ground for bacteria (nasty smells), and blisters (nagging injuries). And you don’t want either.


Not only that, running in the winter with cotton socks will make you feel damp and cold. And that makes for a miserable run.


Sure, cotton is cheaper than technical moisture-wicking synthetic materials, but the proper technical running attire is well worth the extra buck.


Functional Materials for the Socks

Our feet are a work of wonder. They contain about 250,000 sweat glands. Put simply, our feet sweat a lot. That’s why you need running socks made with technical materials, lightweight and equipped with excellent sweat wicking properties.


High-performance socks are specifically designed for runners—they pull moisture away from the skin, and won’t let it turn into an abrasive material that will rub against your feet—all of this helps keep your feet relatively comfortable and dry.


Ideal running socks are made from synthetic materials such as acrylic, CoolMax, and polyester. Look for these in the ingredient list whenever you are purchasing new socks. Some high-performance socks are also designed with a mesh venting system.


Also, consider looking for fabrics with anti-odor properties to keep your feet clean and smelling fresh.


Got Any Blisters?


If you’re prone to blisters, consider doing any of the following to limit friction between your feet and the inside of the shoes:


  • Opt for anti-blister socks that have a double layer system; or
  • Wear a second layer sock for extra blister protection; or
  • Go for thicker socks.


  1. The Right Size

When running, it’s essential to have athletic socks that fit properly. Pair that’s too large or too small can bunch up and sag, and won’t provide you with the right cushioning that is required.


It also should not irritate your skin, nor leave a substantial imprint, particularly in the calves or ankles.


So, as a rule of thumb, avoid socks that bunch up and slip your shoes. Anytime you have something rubbing against your skin, especially if your skin is damp, you run a high risk of getting painful blisters. And you don’t want that.


Your socks must be a perfect fit, especially under the arch of the foot and around the heel. They shouldn’t slide around.


To make sure you have the right size, make sure that the heel portion of the socks perfectly lands on your heel without stretching.


Also, your jogging socks should be worn fairly tight to the skin, but not so tight that they overstretch or restrict the movement of your toes.


  1. The Many Lengths

In general, socks usually come in four different lengths. Which length you go for depends on the weather, training intensity, and your own personal preferences.


Here the main types:


  • Knee length—usually compression socks that sit just below the knee to cover the entire calf
  • Crew length—these come up to the calf.
  • Anklet—these sit right above the ankle, as the name implies.
  • Socklet—these sit just above the shoe line.


  1. Thickness of Fabric

Just like thickness and size, jogging socks are also designed with different levels of padding. Different athletic sock materials and styles will provide different levels of cushioning.


Which type of sock you choose depends, as always, on your personal preference. No suit fits all.


Thick Vs Thin

Thick socks typically have extra padding in the heel and toes, which offers superior underfoot comfort, more cushioning, and blister protection, but might be a hurdle when trying to fit into a new pair.


In general, thicker socks are most appropriate for cooler seasons.


On the other hand, the thinner socks are lighter and tend to have a better road feel, but might result in excessive friction when running, especially if you’re prone to blisters.


Generally, thin socks are ideal for hotter seasons.


What’s the Best Choice?

Whether you choose a well-padded sock, or something more minimal, in the end, it all boils down to your personal preference.


For instance, super thin socks might not feel comfortable for some individuals, whereas a super thick pair might affect the fit and comfort of the shoes.


But all in all, choose socks that have at least a degree of padding at all points of contact around the foot. Proper socks should offer a degree of cushioning at impact zones. These are typically most used and abused parts of your feet.


Try it with the shoes

Keep in mind that the thickness of your sock affects the fit of your shoes, requiring you to go up at least a half shoe size to accommodate for the additional cushioning.


So, when you are trying out a new pair of shoes, make sure to do so with the socks you are going to be running in.


  1. Compression Socks

According to the current theory, compression socks may speed up recovery and improve performance.


Of course, there is still much debate about this, but it’s something I think you should give it a try and see for you. I believe that it works.


I don’t know exactly how effective compression socks really are when it comes to performance and recovery, but I do enjoy putting them on both during and after my runs—especially long runs.


Compression socks are designed with gradual compression, which improves blood flow to the muscles. This is believed to lessen muscle fatigue and speed up recovery following a workout.


Some high-tech running socks are designed to mildly compress your muscles to enhance blood circulation, reducing fatigue, and speed up recovery time—all of which can help you run farther for longer and with less fatigue, and soreness.


Also, according to theory, compression socks may reduce your chances of injury and ward off muscle soreness and swelling.


Just make sure they fit right. Compression socks shouldn’t feel too tight. After all, their primary purpose is to aid blood circulation to the muscles rather than hindering it.


To ensure that you have the right fit, get a tape measure, measure around the broadest part of your ankle (this measurement is often called the circumference), then measure the widest part of your calves.


Next, while sitting on a chair with your knees bent at a 90-degree angle, size up your calf length by measuring the distance from one finger below the bend in your knees to the ground.


Last up, match your results against the size guide and recommendations on the individual socks’ pages.


Also, you might need to experiment with several brands and styles before settling on one that feels the most comfortable for you.


To Conclude

But in the end, it’s really a question of personal preference. That’s why you need to experiment with different socks lengths and sizes to find the type of socks that works the best for you in different seasons and conditions.


My best advice is to get a variety of socks. By doing so, you’ll be better prepared for any circumstance or weather conditions that come your way.


If you need more information about jogging socks or other athletic socks, try to check out the website of Footland Inc. – the company specializes in kinds of socks including waterproof socks, mountaineering socks, seamless running socks, and much more socks.


Article Source: Runners Blueprint


Common Types of Pneumatic Valves

On March 30, 2018, in Manufacturer, Valves & Pumps, by Jasmie K.

Pneumatic valves are one of an array of components responsible for controlling the pressure, rate, and amount of air as it moves through a pneumatic system. Pneumatic systems, which depend on the force of compressed air to transmit power, can be found in countless industrial applications, from pneumatic pressure power tools to diesel engines. Based on other components within a given application and the type of pneumatic system used, one of several types of pneumatic valves may be found at the heart of the device. Functional directional control valves, those that control the direction of air flow or inhibit flow all together, are a large class of pneumatic valves that houses multiple variants.


Functional Directional Control Valves


Many functional directional pneumatic control valves are classified based on the number of entry and exit ports they possess, the number of flow paths they create, and the mechanism by which ports are opened and closed.


Two-Way Directional Valve


A two-way directional valve passes air in two directions, through two ports which can be open or closed. If the valve ports are closed no air can flow through the valve. If the ports are open, air may move from the first port through the valve and through the second port or in the opposite direction.


Three-Way Directional Valve


A three-way directional valve has three ports, each of which serves a different purpose. The first port is used to connect the valve to an actuator or another device. The second port is connected to an air-flow. The third port is used as an exhaust exit. When the first and second ports are open and the third is closed, air moves through the valve to the device. When the first and third ports are open and the second port is closed, the actuator can vent exhaust.  Three-way valves are often connected to actuators in cylinders, or used in pairs and connected to double-acting cylinders.


Four-Way Directional Valves


A four-way directional valve has four distinct ports, two of which connect to actuators, one that connects to a pressurized air-flow, and one that serves as an exhaust pathway. They are among the most common types of valves found in pneumatic systems because the four distinct paths allow the valve to effectively reverse the motion of a motor or basic cylinder. An additional port is sometimes added to a four-way valve, making it a five-ported four-way valve. A four-way valve with an additional port is often used to provide dual pressure, meaning the valve can apply one of two kinds of pressure and alternate between the two depending on what the application requires. Alternatively, the valve can use the other port as a secondary exhaust port.


Spring Offset


This type of pneumatic valve classification refers to the manner in which air-flow direction is switched. For example, in a two-way directional valve, the valve is either open (air-flow is enabled) or closed (air-flow is prevented). In order for each port to assume an open or close position, an actuator moves a valve spool into position. To release the valve spool and return the pneumatic valve to its previous position, a spring releases the spool. A two-way directional valve that functions in this manner is also called a spring offset valve.


Resting State: Open v. Closed


In two-way directional spring offset valves, there are two positions they can assume when the connected actuator isn’t active: open or closed. In devices where an open resting position is standard, air moves freely through the valve. In a closed resting state, the air-flow is blocked. In three-way valves, one port is always open. In such cases, a closed resting state usually results in blocking the air-flow port, so pressure isn’t moving unless the device is turned on.


If you need more information about directional control valves and more pneumatic valves, welcome to check out the website of Ashun Fluid Power Co., Ltd. – the company specializes in kinds of valves and cylinders. You can find modular valves, directional control valves, pressure control valves, flow control valves, lift hydraulic cylinder and more products here. Get further details please feel free to send inquiry to Ashun.


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Do You Know What EPP and EPS Foam Are?

On March 29, 2018, in Machine, Manufacturer, Mold, by Jasmie K.

EPP and EPS foam have distinct technical properties, and therefore are employed in different application areas.


What is EPP?

Expanded polypropylene (EPP) has a low density and it has a high elasticity; it has low compressibility and a high deformation recovery rate. EPP is resistant to oils, acid and alkali chemicals, and solvents; it does not readily absorb water.  In addition to being nontoxic and tasteless, it can be recycled with very high efficiency with minimal performance degradation.


Applications of EPP

These properties make EPP applicable to:


  1. Packaging industry, especially for products sensitive to shock during handling, such as electronics and medical devices; these same properties combined with its complete lack of toxicity make it very suitable for shipping food products as well.
  2. EPP is also employed in the manufacture of car parts, serving as the core material for bumpers as well as roof structure and other components.


Well… And What is EPS?

Expanded Polystyrene (EPS) is rigid and tough closed-cell foam. Its advantage lies in the ability to produce products with different densities, and to be made into sheets of varying thicknesses as necessary; this flexibility in design comes from its production process, in which polystyrene beads are placed inside the mold and expanded using steam and a blowing agent, typically expanding by around 4000 percent and filling the cavity in the mold to produce the required shape.


Like EPP, EPS finds many applications in:


  1. Packaging, but EPS is also used in refrigeration and the manufacture of daily necessities.
  2. EPS also serves an important role in construction, primarily employed as a structural insulator. Its excellent thermal properties enable EPS to improve the energy efficiency of a building when used in the walls and floor of a building.


If you have any interest in learning more information about EPP and EPS, try to visit the website of Tai Shyan Machinery Industrial Co., Ltd. – the company specializes in EPP machines, EPS machines, shape molding machine, and more machinery. Welcome to check out Tai Shyan product pages to get further details that you want to understand.


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3 Ways Industries Are Using Lamination

On March 22, 2018, in Machine, Manufacturer, by Jasmie K.

Manufacturers have been using the process of lamination globally for over a century. One of the earliest variations of this process comes from the French chemist Edouard Benedictus.


In 1903, Benedictus accidentally coated a glass flask with a plastic compound; when the flask fell to the ground, the chemist was shocked to see the glass merely shatter and not break.


This concept behind laminated glass paved the way for several innovations from industrial manufacturers—including those in the paper industry. The modern applications for paper lamination are very distinctive.


  • Enhanced Product Protection

Laminations are ideal for creating a protective layer against substances such as water, oil, or grease; and are a common requirement in food and beverage packaging.


To ensure products remain sterile until they are ready for use, a vapor barrier—a thin, impermeable coating—can be used in conjunction with various laminates to keep moisture and oxygen out of the packaging.


  • Security From Counterfeiting

Paper manufacturers often use specially colored laminating adhesives as a security measure against counterfeit ticketing. When a laminate-treated ticket is torn, the unique color is clearly visible, signifying the ticket’s authenticity. These specialized tickets are resilient enough to withstand contact with water and mild bending.


This practice is used with many types of tickets, such as those for sporting events, musical performances, and even public transportation.


  • Light “Block Out” Barriers

Some laminations are used to create an inside adhesive layer able to block the transmission of light. This “block out” coating is popular for many products that need to keep light from showing through the other side.


These products include advertisements (aisle signs or those found in store windows), trading and playing cards, photographic light boxes, and many others.


Learn More Information About Lamination


Leader Extrusion Machinery Ind. Co., Ltd. is the manufacturer of specializing in industrial laminators. Show you one of their lamination machines below:


Tandem Industrial Extrusion Lamination Machine

Leader Industrial Laminator

Leader Extrusion Machinery’s double sided extrusion lamination machine is supplies in industrial PET film composites and carbon fiber cloth, PET or BOPP film and aluminum foil composite.


This industrial laminator is mainly used for double-sided paper cup, paper bowl drench membrane, ice cream cups of raw material for the film.


If you have any interest in Leader extrusion lamination machine, please try to check out their website here:



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Why Do You Need Bubble Cages?

Blown film extrusion is the process that involves extruding a tube of molten polymer through a Blown Film Die (Single or Multi-Layer), which is a vertical cylinder with a circular opening. Air is injected through a hole in the center of the die creating a bubble, several times its initial diameter. The bubble is pulled upwards and an Air Ring blows air onto the film to cool.


Bubble cages reduce the turbulence caused by the cooling air stream when it hits the bubble. The Bubble Cage reduces movement that the bubble would otherwise have and prevents the bubble from losing stability. More stability results in increased production as well as improved quality.


Recommend Bubble Cages Supplier

If you have any interest in Bubble Cage, I recommend that you can visit the website of Hsin Long Thread Rolling Machine Co., Ltd.


Hsin Long Bubble Cage

Hsin Long Bubble Cage


  • The wires of stabilizing ring with SUS304 for increased.
  • Easy to adjust.
  • Single or double layer assemble easily.
  • Mass production, competitive prices.
  • Choice of various ring diameters.


Learn further details about bubble cage or other blown film extrusion machine, please do not hesitate to check out Hsin Long product pages and send inquiry to them.



Article Source: Mark One Machinery

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Selecting The Right Chain Hoist

On March 21, 2018, in Manufacturer, by Jasmie K.

Selecting the correct chain hoist for your application can be a confusing task. Manual and electric chain hoists are used for a variety of lifting reasons. The how to checklist below is going to help simplify which hoist will work best for you and your application.



First we’ll need to know the weight of whatever it is you are picking up? Once we have this number we will round up to the nearest 1/4 ton, 1/2 ton, or ton. Depending on the manufacturer, the 1/4 ton and 1/2 ton increments will usually stop being offered after 3 tons of capacity. What does this mean for you? If your load is just over 3 tons in weight (6,000 lbs.), you may have to upgrade to a 4 Ton chain hoist to ensure a safe pick and proper functioning of your new chain hoist.



Next we’ll need to determine the amount of lift your application requires. To determine lift you will need to know two critical pieces of information. First, where will your chain hoist hang from; and secondly where will the load to be picked be located in relation to the chain hoist. Finding your lift number will be nothing more than subtracting the resting location of the item to be picked from the hanging location of the hoist. For example, if your item to be picked is located on the factory floor, and the beam the chain hoist sits on is at a height of 22 feet, then you will need at least 22 feet of chain lift with your new hoist.


When in doubt, always add a couple feet of lift to be safe; chain is sold by the foot and it cannot be added to the existing chain. For example, if it turns out you will need 23 feet of lift, you will have order a completely new chain which can cost hundreds of dollars; if you had added 1 extra foot to your lift before ordering your chain hoist, the difference would probably be within $20. It’s a costly mistake that can easily be avoided.



Next we’ll need to determine the speed in which you would like to lift your item. This can be a tough decision to make for someone who does not have a lot of experience with lifting, and may best be left to a professional to answer. Traditional speeds can range from just a couple (2 or 3) feet per minute to 16 and 32 feet per minute. Some new hoists, especially air chain hoists can lift around 100’ per minute


Incoming Power

Next we need to determine your power source. If you will be using single phase power, you will have to determine if the volt supply is 115 (what we find in our homes) or 230 (what our home dryers plug in to and often found in small machine and carpentry shops). Larger factories and industrial workplaces will usually be running on three phase power; three phase voltages range from 208, 230, 460, and 575. If you do not have this information, you should reach out to your power supply company; choosing the wrong voltage can instantly fry your new hoist, costing you thousands of dollars in replacement costs before you even get to use it.


Control Voltage

In line with the above question, you will need to determine which control voltage you prefer to send to the handheld pendant. This is usually one of two options, 115 volt or 24 volt. If possible, 24 volt is the desired option for safety.


Pendant Control Cable Length

The pendant control cable length is known as “push button drop” in the lifting industry. This is how far down from the chain hoist you would like the hand control to hang in the air. Standard push button drop is equal to 4 feet less than the lift. Using the example above, if you have 22 feet of lift, the standard hand pendant or push button drop will be 18 feet below the chain hoist, or 4 feet above the floor in this application.


There are times when the pendant drop will have to be a special length, and not the standard 4 feet less than lift. For example, some applications call for a chain hoist to lift an item from a hole in the floor that goes below floor level. In this situation you could have 35 feet of lift, but the factory floor may be only 22 feet below the where the hoist hangs. If we applied the standard rule, our pendant drop would be 31 feet below the chain hoist, but that means the operator standing at 22 feet below the chain hoist will have 9 feet of extra cable dragging on the floor, a serious safety hazard. In this instance, the pendant drop would deviate from the standard and we would specially order the drop to be 18 feet so the pendant hangs 4 feet above the factory floor, an ergonomic position for most people.


Type of Suspension

Next we will discuss how the chain hoist will be suspended. There are two common options for suspending or hanging a chain hoist, Hook mount or Lug mount. With Hook mount, the chain hoist will come from the factory with a hook attached to the top of the body. This hook will rest inside an opening on the trolley, a rolling device that rests on the Beam (explained in greater detail below). There are two common types of hooks available, rigid and swivel. The rigid hook is just as it sounds, it does not swivel and therefore the chain hoist cannot rotate 360 degrees on the trolley as in the case with a “swivel” hook. The swivel hook is also just as it sounds, allowing for the chain hoist to spin clockwise or counterclockwise during operation.


Next is the Lug suspension option. A lug suspension is available on almost all chain hoists, and becomes particularly useful when there is limited headroom for mounting and operating the hoist. A lug suspension forgoes the hook we discussed above, and makes the hoist mountable to the trolley with just a couple of bolts/lugs.


Type of Trolley

There are a few different options when choosing a trolley, but first lets define what a trolley is. A trolley is a device that rests and rolls along the Beam your chain hoist will operate from. There are 3 common types of trolleys that we will discuss all three below.


  • Plain Trolley: Also known as a push/pull trolley, a plain trolley is the simplest form of trolley available. As discussed above, the hoist will hang from this trolley by either a hook or lug mount. A plain trolley will move the chain hoist along the Beam by human power via the hoist operator. The operator will grab either the hook or the item being lifted and pull or push the item to move it in the desired direction along the Beam.


  • Geared Trolley: A geared trolley is the next step up in ergonomics. With this option, the chain hoist operator will pull on a chain hanging from the trolley (much like a manual overhead door operator), and the trolley will use its gears to roll the trolley wheels along the Beam instead of human push/pull power as we discussed with the plain trolley. When ordering a geared trolley, one must specify the hand chain drop required. Standard hand chain drop is 4? less than lift, similar to the pendant station or push button drop we discussed earlier.


  • Motorized Trolley: The motorized trolley option is the most ergonomic of all the options we’ve covered. This option is exactly what it sounds like, instead of a plain push/pull trolley, or manual geared trolley, this trolley will have a motor attached to the side of the trolley wheels. A motorized trolley can have its own control pendant that will hang down from the beam in close proximity to the chain hoist pendant.


Type of Beam

There are three common types of beams in which we can use to hang a hoist. Correctly identifying your type of beam is imperative to ensuring your chosen trolley will operate and roll properly.


  • I-Beam: An I-beam, also known as H-beam, W-beam or WF-beam (for “wide flange”), is a beam with an I- or H-shaped cross-section. The horizontal elements of the “I” are flanges, while the vertical element is the web. The web resists shear forces while the flanges resist most of the bending moment experienced by the beam. Beam theory shows that the I-shaped section is a very efficient form for carrying both bending and shears loads in the plane of the web.


  • WF-Beam: Also known as a Wide-Flange Beam is the most common I-beam found in applications in the United States. A Wide-Flange beam has flanges in which the planes are nearly parallel; unlike the “S” style beam which has a tapered flange.


  • Patented Track: A patented track beam is similar in conception to the standard S and WF I-Beam with one significant difference; The bottom flange of a patented track has a 3.25” wide flange made of specially hardened steel with a raised lip to form a perfect rolling surface. The especially hardened bottom flange is then welded to the upper portion of the beam. Patented Track beams are generally more expensive than the other two options. However the buyer also gets what they pay for, an extremely rugged beam meant for harsh repetitive environments where precision and consistency is of the utmost importance. Many military facilities and aircraft maintenance hangers will rely upon the Patented Track.


When purchasing your hoist, it is imperative that you inform your hoist distributor of the beam height, flange width, and the degree of taper if dealing with a “S” style I-Beam.


If you have any interest in electric chain hoists, I recommend that you can visit Cheng Day Machinery Works Co., Ltd. – the company is the leading manufacturer of various lifting equipment. Try to check out their product pages and feel free to send inquiry to let them know your requirements.


Article Source:


Let’s Talk About SUP Leashes

On March 21, 2018, in Manufacturer, Sport, by Jasmie K.

SUP leashes provide a simple and secure way to keep a paddler with their board. Wearing a leash should be second nature, like wearing a seat belt in a car. But do you know about the different types of leashes, and understand when and where they should be used?


History of The Leash

Invented around 1970 the surfboard leash started off as a very springy and often dangerous way to prevent a board making its own way back to the beach. The equipment we now regard as essential to safety may have been responsible for Jack O’Neill losing his eye in 1971 from a ‘whiplashing board’. Not the best start for safety equipment!


The use of urethane for the leash became commonplace in the mid to late 1970’s reducing the whiplash effect (but not removing it) and making them far more durable. According to some sources (Surfer Magazine, 2011) 99% of surfers use one. Even with such apparent support for the use of leashes there are surfing applications where their use is questioned. The loss of Mark Foo at Mavericks in 1994 has been blamed on his leash and that discussion continues today.


For SUP use the urethane leash has been beefed up a little to cope with the larger boards and higher volumes. But they look just like standard surfboard leashes so when buying one make sure it’s suitable for your board.


Types of SUP Leashes

There are two types of leash, coiled (commonly used for flat water), and straight (commonly used in surf and other general paddling) both typically fit around the ankle or calf. However these leashes are also available with a quick release mechanism which then typically attached to a belt worn around the waist, allowing for quicker and easier release from your board (commonly used in moving water and also now popular when racing)


Straight Leash

This type of leash is ideal in the surf, because it has less spring back than a coiled leash (and therefore less chance of your board coming back and hitting you in the face!) and it trails in the water leaving your deck clear to move your feet around the board. Ideally a surf SUP leash should be at least the length of your board. A straight leash is the most universal leash as can be used in not only surf but also flat water and moving water (with a quick release attachment). So if you want one type of leash to use on flat water and in the surf then get yourself a straight leash.


Coiled Leash

These are most commonly used in the flat water SUP and race scene. Sitting comfortably on the deck out of the water, they produce less drag and reduce the risk of getting caught on seaweed, and other paddler’s paddles etc.… Not for use in the surf due to their spring back board potential! If you do use a coiled leash in the surf (not recommended) you can guarantee it won’t be coiled for much longer!!


Quick Release Leash

The quick release is an attachment that can be added to any standard straight/coiled leash, or you can buy a specialist quick release leash. Gaining in popularity the quick release leash is worn around the waist as a belt, either on it’s own or as part of a buoyancy aid/hydration pack. The quick release is a buckle, usually with a toggle attached to it so it can be grabbed quickly and pulled open, releasing the paddler from the board almost immediately. Probably developed from harnesses used by White Water kayakers this type of leash is starting to appear on the race and surf race scene too. When racing it eliminates any chance of the leash dragging in the water, keeps it out of the way when stepping back for buoy turns and moving around the board, and allows for quick and easy board transitions during races.


In white water a quick release leash is vital in the event of a situation when you need to separate from your board quickly e.g. becoming held by the water against an underwater obstacle. Therefore when white water paddling a quick release leash is essential.


How to Attach A Leash

The vast majority of boards will come with one or more specific leash attachment points, usually found near the tail of the board. On an iSUP this is likely to be a steel D ring glued to the board, on hard boards they are often recessed into the deck. Leashes will usually come with a length of string attached to a rail saver. The string is the connection between the board and the leash.


Surf SUPs will typically have one leash attachment point at the tail, but longer, race boards frequently come with a leash attachment point in front of the deck pad allowing a shorter leash to be used and reducing the chance of it dragging in the water.


How to Look After A Leash

Leashes will have a hard life! As well as being stretched, on an iSUP they are frequently looped around a rolled board to keep everything tidy, and on hard boards you’ll see them wrapped around the tail when in transit. Doing this can develop kinks in them and the urethane can easily be damaged. Therefore urethane leashes should, when not in use, be removed and kept out of the sun. It’s worth storing your leash with your board so there’s no chance of forgetting it.


Your leash is the most important bit of safety equipment you have, so check it regularly for any signs of wear and look after it. They’re not cheap, but a leash is there to save your life, so if you think it’s starting to look a bit tired and needs replacing – then replace it. Don’t just wait for it to snap!


When to Use A Leash?

The simple answer is always. End of discussion.


But nothing is that simple, using the wrong leash can be more dangerous than not wearing one at all.


In the sea, SUP surfing, a SUP leash is a necessity not an accessory. And the vast majority of SUP surfers will wear a leash without hesitation. But using one is not the end of the SUP surfers’ responsibility. A big board at the end of a long leash could do a lot of damage in a crowed line up. And in the surf, a SUP board of any size on the end of a coiled leash is asking for trouble too! Always consider the safety of others in the water, as well as your own safety.


For coastal exploration or flatwater paddling a leash makes sense most of the time, they are comfortable and don’t get in the way, and keep you connected to your board (flotation device). However a big flat river can have a strong current and be moving a huge volume of water, just like in a WW river. UK rivers are often not clear water, carrying silt which means that obstacles under the water e.g. tree branches etc.… are not always obvious. Leashes can easily be caught around these objects as well as pontoons, jetties, buoys etc.…


So sometimes undoing a leash would be a good idea whilst paddling, for example when getting on or off a board at a pontoon with a strong current. Better to undo your leash and climb out with the risk of losing your board, rather than getting pinned and losing your life.


No matter how you look at it, a Velcro strap attached at one extremity of your body is not an easily accessible quick release. Have you ever tried reaching your ankle against fast flowing water? Not much fun and near impossible.


So is the future of the SUP leash around our waists? Any leash can be converted to a waist leash with quick release so it would seem to be the sensible thing to do for all but SUP surfing.


If you need more information about sup leashes, please try to visit the website of BroadPlast. The company offers a wide range of kayak accessories including kayak fishing accessories, deck hardware, handles, sup leashes, bungee and bungee connections, fasteners as well as some other marine hardware. Get more options, welcome to check out BroadPlast product pages and send inquiry to them.


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What is Roller Shutter Door Machine?

Roller shutter door machine is used to produce the shutter door slats. And the shutter door slats can joint together so that make up the roll up door.


This kind of roll up door is easy to install and has the advantage of high strength, good rigidity, strong structure, anti-wind hook in the guide rail to ensure that the curtain does not break away from the guide rail in the strong wind. Furthermore, it is suitable for any construction area.


Do You Know Where Can Buy Rolling Shutter Roll Forming Machine?


About this question, I recommend that you can check out the website of Yunsing Industrial Co., Ltd.


Yunsing is the leading cold roll forming machine manufacturer in the industry. You can find a variety of roll forming machines on their website. Below, I will show you a roller shutter door machine made by Yunsing.


Rolling Shutter Roll Forming Machine


Yunsing Roller Shutter Door Machine

This equipment is designed for Rolling Shutter Roll Forming Machine which is according to Yunsing Model No: YS-100RS. For the material is made of galvanized steel, pre-painted steel, or stainless steel. The thickness of forming sheets is varied from 0.6 mm to 1.0 mm.


Yunsing roll forming machines are driven by chain in hydraulic system. Chain Drive System can save the power compare with other system. That also means that customers do not need to pay the extra power fee during roll forming production.



  • Machine size (Approx.): 2m(L)x0.90m(W)x0.95m(H)
  • Thickness of forming sheet: 0.6 mm – 1.2 mm
  • Forming speed: 12 – 16 m/min.
  • Roll shaft dia.: 40 mm dia. in S45C- heat treatment.
  • Roll stands: 7 sets of roll in SUJ2- heat treatment.
  • Main motor: 7 1/2 HP hydraulic motor
  • Attached with cooling equipment.
  • Attach with one set of adjustable guide table for feeding.
  • Attach with one set of run out table.
  • Control box: All of push button switches pilot lamps, emergency stop switch in computer system.


Above machine specifications are for the regular type and for reference only.



  • Professional designing for manufactures shutter steel.
  • Automatically continually manufactures high quality product with PLC
  • Easy operation: Directly Input the data on the touchable screen.
  • Customers decide the profile of products.
  • Saving time and cost owing to high speed running with hydraulic system.
  • One year warranty.



  • SGS; CE


Order Information:

  • Minimum Order: one set
  • Branded Product
  • FOB: Any port in Taiwan


If you want to get more information about Roller Shutter Door Machine, please do not hesitate to visit Yunsing and feel free to send inquiry to let them know your requirements.



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A servo system and gearbox can provide precise motion control, but care must be taken in design, selection, and implementation.


With the many industrial gearboxes available today, it’s important to match the proper type of gearbox with the drive, motor, and load. When a machine needs a servo system (drive and motor), the gearbox type is critical for accurate and repeatable motion. Planetary gearboxes fit the bill for servo applications.


High-precision helical planetary gearboxes are an excellent choice for applications that need accuracy and reliability. Planetary gearboxes have very low backlash ratings (typically ranging from one to nine arc-min), and when sized correctly offer a service life of over 20,000 hours with virtually no maintenance. Helical planetary gears also provide very quiet and more efficient operation as compared to competitive products.


Precision gearboxes are carefully machined to high tolerances – think clockmaker, not blacksmith. They offer power densities that translates to small package size and efficiencies of 90% and greater.


Why Use A Gearbox?

Servo motors often drive loads directly without the need for a gearbox, but in many applications it’s advantageous to use a gearbox between the motor and load.


One main reason to use a gearbox is torque multiplication. It lets designers use smaller servo systems that consume less energy. Instead of buying relatively large servo drives and motors, designer can use smaller components, saving space and money.


Output torque increases in direct proportion to the gear ratio, and top speed of the output shaft decreases. If an application can withstand the reduced speed, a relatively small servo system can supply high torque.


Gearboxes can also address inertia mismatches. For high performance servo systems — those with high dynamic responses or low overshoot, for example – the ratio between the reflected load inertia and motor inertia should be as low as practical, ideally under ten-to-one. A precision gearbox reduces the reflected inertia by the square of the reduction ratio. For instance, using a 25:1 gearbox reduces the load’s reflected inertia by a factor of 625, a significant improvement.


In some cases, gearboxes simply resolve issues relating to mechanical fit. For example, if directly mounting the motor interferes with another mechanical component, a right-angle gearbox may solve the problem.


Compared to most other gear reducers, a precision gearbox provides better accuracy and repeatability. Furthermore, the gearbox’s high efficiency lets it deliver maximum power available from the servo system—features often a necessity in servo applications.


Comparing Types of Gearboxes


Gearboxes use a variety of power-transmission methods including, but not limited to, planetary gears, worm gears, spur gears, helical gears, and shaft-mount gear units. In servo applications, planetary gearboxes are often the most suitable.


Worm gears use a worm or screw gear to turn a larger transverse gear. They can provide high gear reductions in small packages but aren’t that efficient, on the order of 70%. Worm gears aren’t reversible either and thus can’t be back driven, so they cannot be used to increase speed.


Spur gears use straight-cut teeth on parallel shafts for power transmission. They are available in a wide range of ratios and are cost effective, but they can be noisy and prone to wear.


Helical inline gearboxes also use gears on parallel shafts, but the teeth are cut in helical shapes to allow gradually increasing contact between mating teeth.


Helical inline gearboxes and spur gears typically have more backlash than planetary gearboxes, and there is undesirable thrust acting along the gear’s axis. Helically cut gear teeth are quieter and are used in other types of gearboxes because of this.


Shaft-mounted gear units are popular for parallel shaft gears, such as spur and helical gears. They are well suited to conveyors and other material-handling applications, and are easy to mount. However, they suffer from the same disadvantages as their constituent parts.


Planetary gearboxes are named for their resemblance to a simple solar system. They consist of a ring gear, several planet gears, and a sun gear. The ring gear is typically fixed and is often part of the gearbox’s outer casing, and the input shaft drives the sun gear.


Rotation of the sun gear drives the planet gears to spin about their own axes and revolve about the sun gear. A carrier attached to the planet-gear shafts harnesses output. This arrangement creates a balanced and compact design that is concentric about the shaft. If multiple stages are needed, it is relatively simple to connect the output of one set of planet gears to the sun gear of a secondary stage.


High efficiency, low backlash, and high power density make planetary gearboxes the best of these alternatives in high-precision servo system applications.


Selecting Gearboxes and Servo Systems


A servo system coupled with a planetary gearbox is expected to provide precise motion, but this requires all components be carefully matched. Although it’s possible to buy the servo drive, motor, and gearbox from different suppliers, it’s not recommended as this requires a great deal of research and comparison to ensure all components will work together. Purchasing components from a single supplier — especially one that has carefully matched the components and will stand behind the specific combination of parts in question—offers several advantages.


The supplier has done all the research and confirms compatibility. Most suppliers will extend a more favorable warranty on such purchases. Plus, they can provide the approved mounting hardware to connect the components.


Some suppliers provide online tools for selecting servo systems and compatible gearboxes, easing the specification effort. These selection guides aid the design and provide specific recommendations for closely matched components that can be purchased as a system. In these cases, engineers can be certain the systems they specify are compatible in all critical areas, and that the components will come with the required mounting bushings and keys.


In fact, some selector tools let designers enter their torque and speed requirements, and then automatically filter a list of available motor-and-gearbox sets. Engineers can enter torque data in metric or imperial values, or the designer can select a particular servomotor size. Designers enter speed data as discrete values, or pick a gear ratio. Finally, the engineer can choose a preferred physical orientation—inline, right-angle gearing, or both.


The resulting list of available systems includes pricing information, a factor often critical to the selection process. After choosing a motor/gear combination, the designer moves to a page with full specifications for the selected servo system, the gearbox, and the combination.


One caveat: Even though a selector can make the specifying process easier, engineers and designers should always verify that a system meets their needs and gets applied correctly.


Best Practices and Common Pitfalls


Although gearboxes help reduce mismatches between the motor’s inertia and that of the load, the gearbox’s inertia must be included in the calculation:
Best Practices and Common Pitfalls
When high dynamic responses are required, engineers need to carefully tune the servo systems, preferably with loads attached, for the most responsive performance. Tuning can provide faster moves and minimize spongy motion while reducing overshoot or ringing after moves is complete.


Designers must also pay attention to radial-load and axial-thrust-load specifications. Axial-thrust load is the force acting along the output-shaft axis; radial load acts perpendicularly to the output shaft.


The force of gravity acting on the load is perhaps the most common source of radial loads, but other sources are possible, depending on the mechanical apparatus attached to the output shaft. Additional external bearings may be required with some loads to minimize these forces and prolong the life of the gearbox’s internal bearings.


A common way to minimize backlash is to approach all target positions from a common direction. In the event a reversing move is required, some designers let the load go past the desired position and return to it from the common direction.


Gearbox Applications


One classic example of a precision gearbox application is an indexing table with several stations for machining or assembly. Precision gearboxes and servo systems fit well when the table is relatively heavy and needs to be accurately positioned and when high-speed operation is not as important.


In this case, the gearbox is being used simply for accurate torque multiplication. The servomotor’s top speed of 3,000 to 5,000 rpm is not required at the load, so the gear reduction ratio and corresponding torque multiplication can be large. This allows a relatively small servo system to handle the task. The servo system might even use its built-in indexer to control the motion based on discrete I/O signals from a PLC, or even a simple selector switch, depending on the required level of automation.


Another example of a gearbox application is a high-speed pick-and-place device, such as part removal from an injection-molding machine. The cycle time of these machines is often critical to meet production quotas, and the designer typically wishes to remove parts as quickly as possible after the mold opens.


The moving arms of the pick-and-place device are designed to be as lightweight as possible, but inertia mismatch can still be a factor. The gearbox can minimize the mismatch so that the pick-and-place mechanism is extremely responsive.


The PLC in this example might be much more involved in controlling the motion, commanding moves with pulse and direction signals. In some cases, the PLC also passes recipe tuning values to the servo drive when the motion profile or the picked-part’s inertia changes.


Precision gearboxes and servo systems can be used to meet a wide range of automation challenges. Machine builders should purchase the required components from a knowledgeable vendor who will stand behind their products. Using online selection tools can simplify the choices, although the system will require tuning after installation. When properly designed, specified, and tuned, these systems provide accurate, repeatable results for many years.


If you need more information about planetary gearboxes, please do not miss the website of JIA CHENG Precision Machinery Co., Ltd.


The company can provide high quality and precision reducer, gearbox, and coupling for you. Feel free to send inquiry to let JIA CHENG know your requirements.


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