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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.


Article Source: MachineDesign

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Furniture caster wheels add a degree of mobility and functionality to furniture that you just can’t get when it is standing directly on the ground. They are especially handy for chairs and carts (or for turning tables into carts).


Whether you are trying to replace casters on an object that has already been on casters or you are trying to add them to a piece of furniture that has never had them, there is a surprising amount to consider before you make a purchase.


Tips For Buying The Right Casters For Furniture

For many of us, the world of caster wheels is more or less a mystery. You will probably be surprised at just how many different factors can affect the performance and functionality of something as seemingly mundane as a caster wheel. So to help demystify the shopping process, we’ve broken it down into the different factors that you will need to consider before buying caster wheels for furniture:


Choose The Correct Material For The Floor

Caster wheels can be made of just about any material ranging from nylon to forged steel. But not all materials are equally effective at rolling on all surfaces. Here’s a general guide to which materials you want to choose from based on the type of floor that they will be rolling on:


  • Finished wood floor: plastic, rubber, urethane coated iron
  • Finished concrete floor: plastic, rubber, urethane coated iron
  • Ceramic tile: plastic, rubber, urethane coated iron
  • Vinyl, asphalt, or rubber tile: plastic, rubber, urethane coated iron
  • Oil, grease, solvents: iron, steel, urethane coated iron, high temperature nylon
  • Alkaline and inorganic: high temperature nylon, urethane plastic, urethane coated iron
  • Metal chips on floor: steel, iron, polyolefin


Basically, for most home uses, you will want to stick with rubber or plastic caster wheels for furniture. These materials are soft enough to roll without scratching up or damaging most floor surfaces in the home. The only exception might be the garage in the event that there is oil, grease, or other solvents on the floor. In this case, you’d be better with metal caster wheels for furniture such as iron or steel.


Check The Load Capacity

As a general rule, the heavier and more dense the material, the higher the load capacity. However, you don’t just want to get whatever has the highest load capacity. You don’t need heavy duty forged steel caster wheels for an office chair, for example. They would be unnecessary and could end up damaging the floor.


So, if you can’t precisely weigh the piece of furniture that needs caster wheels, try to at least estimate it within a range and then get wheels that can withstand that capacity.


Choose The Correct Diameter And Tread Width

The diameter of the wheel influences both the load capacity and the mobility of the furniture. If you need something to roll around easily—like a cart, for example—you want a larger wheel because this will roll easier.


If you want something to be mostly stable in one place, you’ll want a smaller diameter so it doesn’t roll out of place so easily.


However, you can’t go too small because smaller wheels cannot withstand the same weight as larger wheels. While material is the strongest influence on wheel capacity, diameter also plays a role. Here is a quick breakdown of the smallest diameter you can go based on the weight of the piece of furniture in question:


  • 3 inches for furniture weighing between 20 and 250 pounds.
  • 4 inches for furniture weighing between 250 and 500 pounds.
  • 5 inches for furniture weighing between 500 and 1000 pounds.
  • 6 inches for furniture weighing between 1000 and 1500 pounds.
  • 8 inches for furniture weighing between 1500 and 2000 pounds.
  • 10 inches for furniture weighing between 2000 and 3000 pounds.


You can go bigger than the recommended diameters given above but never go smaller for a given weight range.


Choose The Correct Mounting Type

If your furniture already has caster wheels and you’re simply replacing them, you want to get the same mounting type as the current wheels. If you are adding caster wheels to furniture that has never had them, you have freedom to choose how they mount. But do note that once you pick a mounting type, you will need to stick with that when it comes time to buy replacements.


There are 3 main mounting types to choose from:


  • Plate mount. In this case, make sure that both the plate size and the pattern of the bolt holes match the original caster wheel’s plate mount.
  • In this case, dimensions are not really important and there are no bolts so no concern about matching patterns.
  • Stem mount. In this case, you need to make sure you choose the same stem style. It will either be threaded, expandable, or a grip ring?


One of the easiest ways to make sure you get the right mounting type is to just remove one of the caster wheels and take it with you when you are shopping.


Verify The Additional Features

Yes, additional features do exist on caster wheels!


For example, you can choose between a fixed or swivel wheel. Fixed wheels role back and forth in a single direction. Swivel wheels can rotate so that you can easily move the object in any direction you like. You can even find a combination wheel that can swivel into the required direction and then be locked in that direction so that you don’t accidentally role it too much to one side as you are going forward.


Another option you can choose is to have a locking mechanism. This is a mechanism that can be engaged to stop the wheel from rolling. This is useful if you need to role the object into place and then want to stop it from rolling out of place again. There are a few different kinds of locking mechanisms available.


Some also come with foot guards that will effectively prevent the wheels from rolling over your feet. That means no risk of crushing your feet underneath the weight of your dresser! And if you are worried about accidentally bumping into walls or other pieces of furniture and causing damage, you can also add bumpers that will prevent damage in the case of any such collision.


Think About Appearance

For industrial purposes or for garage equipment, the aesthetics of the wheels really don’t matter. These are just purely utilitarian. However, for furniture inside the home, you probably want to strike a nice balance between functionality and appearance.


In this case, you can get rustic caster wheels for furniture that will add a unique and interesting look to your furniture. These vintage caster wheels for furniture can also look more natural or coordinated with a vintage or antique piece.


If you’ve got a pretty modern or minimalist aesthetic going, then plain plastic or rubber in a suitable color will be enough to maintain a cohesive look. But for those unique older pieces, you want caster wheels that won’t look obviously out of place.


Final Word

Caster wheels are super functional and in some cases they can even add a new level of aesthetics to an elegant antique piece of furniture. However, there are a surprising number of things to consider before you buy a set of caster wheels. You want to make sure they will actually work with the furniture item you intend to mount them on.


But once you know what kind of load capacity you need, what kind of materials work best for your floors, and other important factors, you can purchase with 100% confidence, knowing that you have chosen the very best caster wheels for your purposes!


Learn more information about furniture caster wheel, please do not hesitate to check out the website of ENJOYING GO Co., Ltd. You can find a variety of caster wheels on their product pages including chair caster, design caster, locking caster, and compression caster, etc. Feel free to send inquiry or contact with ENJOY.



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What is fog? Your meteorologist will tell you that fog is a visible cloud of water droplets that forms when water vapor condenses into tiny liquid droplets suspended in the air. Similarly, fog seen on the inside of clear plastic packaging is the result of the condensation of water vapor on the surface of the material. Fog on the surface of the packaging can reduce shelf appeal and even impact the quality of the product. To help combat this, anti-fog additives and treatments can be used during processing of the plastic sheet.


Anti-fog additives and treatments, in the most basic sense, are chemicals that prevent the condensation of water in the form of small droplets on a surface resembling fog. These treatments were first developed by NASA for use on helmet visors and are now used on various transparent surfaces such as glass, optical applications and clear plastic packaging. Continue reading to learn more about how anti-fog agents help you see clearly in packaging:


The appearance of fog seen on the surface of clear plastic packaging is the result of the condensation of water vapor on the surface of the material. In packaging, this phenomenon can occur when the temperature of the material’s surface falls below the dew-point temperature of the enclosed air and water vapor within the headspace of the packaging. The air near the material cools to a temperature at which it cannot retain the water vapor, and as a result the excess water condenses on to the material’s surface.


In food packaging applications, the food that is being stored may have a high moisture content, so when the packaged item is stored in a cool environment, the temperature drops initiating condensation on the surface leading to fog. Or sometimes the food in the container is hot and gives off steam, which creates condensation when the hot air comes in contact with the cooler inside surface of the package’s lid. This cannot only ruin the shelf appeal of the product by preventing the consumer from seeing the contents, but it could also impact the quality of the food.


There are two methods used to minimize the formation of fog on sheet and thermoformed parts – internal additives or external topical coatings. These treatments both work to minimize surface tension, resulting in a non-scattering film of water rather than single tiny droplets.


Internal anti-fog additives are non-ionic surfactants, or compounds that lower the surface tension between two liquids or a solid and a liquid. These additives can be added to the plastic sheet at the extrusion level in the form of concentrates or master batches. A degree of incompatibility exists between the polymer and the additive, and as a result, the additive migrates to the surface. These additives work to decrease the surface tension of the water droplets, thus reducing the surface tension between the water and the surface of the plastic packaging. This allows the water to spread out creating a more uniform layer of water, thus improving the transparency of the water droplets and eliminating the fogging effect.


External anti-fog coatings are applied to the surface of the plastic sheet or film. These external coatings work similarly to the internal additives in that they are designed to help decrease the surface tension between the water droplets and the material’s surface, resulting in improved transparency. These coatings come in the form of a liquid that is coated to the surface of the sheet or film either by a dip coating and roller process or through a spray application.


If you need more information about anti-fog coatings, please try to visit the website of Prochase Enterprise Co., Ltd... The company can provide excellent anti fog agent and anti fog film for you. Get further details please feel free to send inquiry to Prochase.


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The options for ball valves are seemingly endless. To select a ball valve, decisions have to be made. Which seat material? What kind of end connections? Full, reduced, or standard port ball? 2-way or multiport? What about packing? Finally, how many pieces?


What Is A 3 Piece Ball Valve?

Ball valves come in one, two, or three pieces. One piece ball valves are inexpensive and generally not repaired. Two piece ball valves consist of two separate pieces, with the connection between them being either threaded or a bolt and flange assembly.


As you may have guessed, a 3 piece ball valve consists of three pieces, two end caps and a body. The end caps are welded, threaded, or flanged to connect to the pipe on either side.


Why Use A 3 Piece Ball Valve?

For processes that put heavy demands on valves, having a 3 piece valve is more convenient than one or two piece ball valves. When seats and seals need to be routinely replaced, having three pieces allows for easy disassembly, servicing and reassembly without having to do major cutting on the pipe.


Three piece ball valves also allow for elastomers to be changed accommodating different process conditions, temperatures, pressures and flows.


Need to weld the valve in place? Another benefit is being able to move the body with trim out of the way while welding, ensuring the internals stay intact.


What’s The Big Difference Between 2 And 3 Piece Ball Valves (Other Than The Obvious…)?

Two piece ball valves were also designed with maintenance in mind. The big difference between the two is that the body on the 3 piece valve can be taken out without disturbing the two end caps. A two-piece ball valve doesn’t often allow this to happen, and it’s not possible at all with a one piece ball valve.


There’s also a price difference. As noted earlier, one piece valves are generally of the throw away variety. Three piece valves tend to initially cost more, but can save money in the long run in terms of time spend maintaining, and ability to change seats and seals vs. replacing the valve in its entirety.


Not sure how many pieces you should select for your ball valve application? If you have any interest in 3 piece ball valves, welcome to visit the website of Wellgrow Industries Corp. – the company is one of professional pipe fittings manufacturers in Taiwan. Feel free to send inquiry or contact with Wellgrow.


Article Source: Crane Engineering

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What Are Locking Nuts?

Lock nuts are used to locate bearings and other components onto a shaft as well as to facilitate mounting bearings on tapered journals and dismounting bearings from withdrawal sleeves

Bearing Lock Nuts
When You Use Lock Nuts, You Should Notice….

Lock nuts have to be secured to prevent unintentional loosening. This is done, either by a locking device that engages a keyway in the shaft or key slot in the adapter sleeve, or by a locking mechanism integrated in the nut. Lock nuts with an integrated locking mechanism reduce the cost of the shaft as no keyway is required. Installation is also quicker and easier because no separate locking device is necessary. However, the loosening torque of these lock nuts requires more attention.


Bearing lock nuts are locked on the shaft (sleeve) by friction which varies (with the loosening torque) as a result of the accuracy of the tightening torque of the grub screw (locking screws), the surface finish of the shaft (sleeve) thread, the amount of lubricant on the thread, etc. The lock nuts should be properly mounted and there should be only a limited amount of lubricant on the thread.


There are three locking pins equally spaced around the circumference of the nut to lock it onto the shaft. The locking pins are pressed into the shaft thread with grub screws. The end face of each pin is machined to match the shaft thread. The holes for the locking pins and grub screws are drilled at an angle to the shaft thread to avoid backlash.


Application of Locking Nuts

Intended for applications where high precision, simple assembly and reliable locking are required. They should not be used on shafts with a keyway or on adapter sleeves with a key slot. The locking pin can be damaged if it aligns with a keyway or slot.


A Recommendable Bearing Lock Nuts Manufacturer for You

Get more information about bearing lock nuts, you can try to visit Chin Hsing Precision Industry Co, Ltd.


Founded in 1990, Chin Hsing is a professional and experienced manufacturer of specializing in producing Adapter Sleeves, Withdrawal Sleeves, Lock Nuts, Lock Washers, Self Locking Nuts, Safety Bearing Nuts, etc. If you have any interest, please do not hesitate to send inquiry to Shin Hsing. Let them know your requirements of locking nuts.


Article Source: Ondrives

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A motor winding machine allows you to make an electromagnetic coil that can be used for a variety of purposes. A coil winding machine takes a copper or aluminum wire and winds it around a core or sometimes around air. The coils are usually wound around reels. During this process, the wires can be coated with a variety of materials that can provide some form of insulation. The types of wire, coiling, and insulation needed depends upon the particular application.


Advantages Provided by a Coil Winding Machine

There are a number of advantages that a coil winding machine can provide. With the right materials and components, coils can be excellent conductors of heat. Coils also have the ability to distribute electric field strength with ease. Equipment that contains coils can often operate more smoothly and efficiently than equipment without coils. Reducing the size of coils with an appropriate winding machine can reduce the risk of the coils burning out due to high voltage amounts. For these reasons, and many others, coils can provide a great advantage for your applications.


Types of Coil Winding Machines

There are different types of coil winding machines available.


  • Coil Winders

Coil winders are generally used for smaller jobs. They can be hand operated or have a winding drive that is controlled by a foot pedal. These coil winding machines are used in the production of solenoid coils, multi-section coils, and other such complex coils. Though they are small, they can reach up to speeds of 9000 RPM.


  • Medium-Duty Coil Winding Machines

These machines are more powerful than coil winders and take on higher production demands. Most of them are driven by potentiometers. They can wind various types of wires.


  • Heavy-Duty Coil Winding Machines

Heavy-duty motor coil winding machines are able to take care of extremely large amounts and are also very versatile in nature. For higher precision, most of these machines are equipped with LCD touch-screen monitors. These screens allow operators to have more control over speed.


Components for a Motor Coil Winding Machine

No matter which machine you select and where you purchase it from, you may encounter the need for replacement components at some point during the machinery’s life. For more information about automatic coil winding machine, please do not hesitate to visit DETZO Co., Ltd. – the company is your best global partner of automatic machine line, winding machine, soldering, testing, pin inserting, assembly in the world. Welcome to check out DETZO website to learn more details.



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Gardening Tools You Cannot Do Without

On February 27, 2018, in Hand Tools, Manufacturer, by Jasmie K.

A garden is a piece of land or space that can be used to cultivate flowers, herbs or fruits. This piece of land or space could be your backyard, a hydroponic shed or small flower bed at the corner of your property. Gardening is therapeutic, it can help ease stress and provides an opportunity for self enhancement and increase in self-worth through the process of bringing crops to life from just seedlings.


When considering the idea of setting up a garden, it is important you take note of the required tools to help make the job easier or if you have already setup your own garden getting to know the right tools for the right purpose will also enhance your gardening experience. I shall be talking you through some of the ideal tools that is required to setup and make your gardening experience a blast.




A hand rake is an inevitable tool for every gardener. The rake plays a vital role in loosening the top soil to allow the plant retrieve maximum nutrient from the soil. The rake is also used to clean up the garden of loose dirt and or dried leaves. It is important that you invest in rakes that are metal and hand comfortable handles, this would make the activity of cleaning and raking easy and less stressful.


Garden Hose


Every home should have at least one garden hose, they serve multiple purposes. They could be used to water a lawn or wash the car. Rubber hoses have more flexibility and are less susceptibility to cuts and abrasions but are usually more expensive. A garden hose connects to a source of water by means of plastic couplings or of brass fittings. Layers make up hoses and their strength increases with each additional layer. When you have thicker hoses, the likelihood of kinking reduces and this ensures for constant flow of water. Usually, the length of a hose determines the weight. Treat your hose properly so it could serve you well. Avoid leaving pressure on it unnecessarily and running hot water through it. During purchase, make sure you ask the right questions before making your purchase. Avoid light hoses and hoses without adequate thickness.




A shovel is an essential tool for gardening. They come in different sizes, shapes and a variety of forms. Shovels are made from metal with some having wooden or plastic handles. A shovel is used for scooping, digging and shoveling of soil or dirt. The shovel is important in any garden setup, it helps you save strength on otherwise difficult task of digging.


Garden Fork


A garden fork resembles a shovel only that it is pointed spikes like that of a rake. Garden forks are usually required in larger gardens and small farms to move large bales of dirt or grass. They are the most ideal tool for moving hay for livestock feed. The garden fork is usually metal and has wooden handles which makes usage easy. It is important that safety measures are observed at all times to avoid injury when making use of the fork and all gardening tools.


Pruning Saws


A pruning saw is a gardening saw that has the same serrated blade as a normal saw and it’s used to trim live shrubs and trees. There are different pruning saws for different purposes and type of shrub or trees. We have the arborist saw and the curved hand cut saw to name a few. A pruning saw is an ideal tool to have in your tool shed; it allows you to take care of renegade shrubs and tree branches.


Gardening saw comes in different sizes and types. Just like every tool, for a gardening saw to be keep functioning, it needs to be maintained. Ensure to clean it after every use and oil the blades at intervals, sharpen the blades when necessary and use the different gardening saw correctly for their required purpose.


Hand Trowels


A garden trowel is a small hand tool that is used for weeding and cultivation. They usually have wooden, plastic or metal handles coated with rubber. Garden trowels that do not have the metal handles are prone to breaking or bending. It hand trowel is very useful for most gardens, I am yet to see a garden tool shed that doesn’t have a hand trowel. It’s one of the mist basic gardening tools.


Like all gardening tool, it is important to have a proper maintenance routine. Your hand trowel should be kept clean, sanitized and wiped dry after every use. Infected trowels are harmful to your garden as they can spread disease from one plant to another. The best way to store this trowels is by hanging them up. Most garden trowels are built with a hole at the end of the handle which can be used to hang them.


Pruning Shears


Pruning shears are sometimes called hand prunes. They are used for cutting and trimming of any unwanted branches and weeds. They can also be used to shape out your plants to allow for effective growth, pruning a tree at intervals helps to improve its overall growth potential by weeding off old and unwanted parts. Pruning shears are small and handy just as they are quite inexpensive. After every use, rinse your pruning shears with water, dry them and cover them with their protective cover before placing them back in your toolbox.


Like the hand Trowels, hand prunes are very important garden tool for every toolbox. It expected that every garden should have a pruning tool. Hand prunes come in various sizes and shapes for performing different types of pruning. Sometimes the differentiating attribute is the material used in forging it and the manufacturer. Invest only in quality prunes forged from stainless steel to ensure it last longer for the purpose.


Garden Pots and Planter


There’s a large variety of pots and planters on the market. If you are looking to buy some, you should definitely get what suits your needs and purpose in terms of functionality, color and style. The kind of pot or planter you use depends on your needs, climate and the kind of plant you intend growing on the pot. Planters are made from different materials to serve different purposes. Some common choices include Concrete, clay, metal plastic or wood. Planters and pots are great ways to bring nature indoors, on your balcony or even onto your patio.


The list of gardening tools is not exhaustive but I have chosen to educate you on this few, it is my hope that you have learnt a few things. I wish you a happy gardening.


If you need more information about gardening saw series, I recommend that you can visit the website of K&W Tools Co., Ltd.


The company provides a variety of gardening saws including pruning saws, bow saws, foldable saws, tree pole pruner, etc. Learn more details please do not hesitate to send inquiry to K&W.



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What are Symptoms of Bad Valve Seals?

On February 21, 2018, in Manufacturer, Oil Seals, by Jasmie K.

Valves regulate the amount of fuel and air mixture allowed in the cylinders for combustion. While the valves have guides or sleeves to keep combustion gases from passing through them, the seals on the top of the valves keep oil in the valve cover from being sucked down into the engine. Seals, typically made of high-strength rubber, fit over the top of the valve stem inside a small collar. When valve seals begin to wear or fail they produce some obvious and unique symptoms.


Cold Engine

One of the most noticeable signs of worn or cracked valve stem seals will be just after a cold engine start. If the vehicle has been sitting for any length of time or even overnight, the top of the head inside the valve cover will be coated with residual oil that was pumped up earlier during running operation. The rubber valve seal has also cooled during nonoperation, which causes it to contract and leave a small gap. When the engine first starts up, residual oil gets sucked down through the bad seal and into the combustion chamber. A large cloud of blue-white smoke will be seen exiting the tailpipe just after start-up.


Idle and Stop and Go Driving

Bad valve seals will show themselves during prolonged idling at stop signs or stop lights in congested city conditions. When the vehicle sits at idle for prolonged periods, high levels of vacuum at the intake manifold result because the throttle valve remains closed. The high vacuum attracts oil in the heads to congregate around the valve stems. Upon acceleration, the oil gets sucked past the eroding seal and down through the valve guide, where it burns in the exhaust. Huge clouds of blue-white smoke exit the tailpipe after each acceleration from a stop. The burning smoke will disappear during cruising or highway speed.


Off-Throttle Braking

Evidence of valve seals being compromised will show up during off-throttle braking, especially when descending a steep downgrade where the accelerator pedal remains static. With the creation of high intake manifold vacuum, coupled with the downward slant of the engine, oil collects toward the front of the valve cover over the head. Upon pushing the accelerator after a long coast, burned oil will exit the tailpipe in copious amounts. The engine will continue to burn the oil longer in this case, but it will still be a temporary condition until finally the smoking stops under normal cruise.


Oil Consumption

Bad valve seals will cause excessive oil consumption. In an otherwise normal engine with good compression, rings and valve guides, bad seals will cause a loss of oil that can be detected on the oil dipstick. By keeping an accurate record of oil level on the dipstick, a noticeable oil reduction due to the oil being burned along with the fuel will be discovered. Bad seals will be confirmed if no oil leaks can be found on the engine to account for the loss.


Excessive Smoke

If the valve seals have deteriorated enough, the blue-white exhaust smoke will last longer after start-up and acceleration. Yet the smoke will eventually disappear after long engine operation or during periods of hot weather. Bad valve seals nearly always show an intermittent problem of oil burning, whereas worn piston rings and valve guides will smoke during all times of engine operation and never disappear.


Get more information about valve seals, please do not miss the website of AOK Valve Stem Seals Ltd... The company can provide a variety of valve seals, o rings, and bonded seals for you. Try to check out their product pages and feel free to send inquiry to AOK for more details.



Article Source: It Still Runs

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What is EDM?


EDM stands for electrical discharge machining, the applications best suited for this metal removal process are those characterized by extremely exacting tolerances and situations that would be extremely difficult or impossible to handle with any other method of machining.


Growth of EDM


EDM has rapidly earned its place alongside milling and grinding equipment as a proactive, mainstream technology. EDM is best known for its ability to machine complex shapes in very hard metals. The most common use of EDM is machining dies, tools and molds made of hardened steel, tungsten carbide, high-speed steel and other workpiece materials that are difficult to machine by “traditional” methods.


The process has also solved a number of problems related to the machining of “exotic” materials such as Hastelloy, Nitralloy, Waspaloy and Nimonic, which are used on a large scale in the aeronautical and aerospace industries.


With the reduction in electrode wear and increased sophistication of EDM controls in rams, new EDM processes use simple-shaped electrodes to 3D mill complex shapes. EDM also is being used for polishing small, intricate surfaces.


Since EDM does not involve workpiece/tool forces like a mill or grinder, it is possible to EDM shapes that would break conventional cutting tools or be broken by them.


Different Types of EDM


  1. RAM EDM

RAM EDM, also known as plunge EDM or standard EDM, is the oldest form of EDM machining. It generally consists of an electrode usually made out of graphite that is plunged into a workpiece in order to create a blind-shaped cavity. It can also be used to generate through holes and geometry but these are not the primary uses of the process.


  1. Drill EDM

Drill EDM uses rotating concentric electrodes to drill through a workpiece and basically performs the same functions as a drill press, except that the material hardness is not a factor and the accuracy of the finished hole is far superior than what any drill press can produce. It is best used to drill start holes for the wire EDM in already hardened material as well as accurate very small holes for industries like aerospace and medical equipment.


  1. Wire EDM

Wire EDM uses a traveling wire electrode (usually .010” diameter or smaller) that goes through the workpiece. The wire, in this case, is controlled by computer following the assigned geometry for the part to be produced.


EDM for Tooling Applications


When a part requires special / unique conventional cutting tools, electrodes are easy to machine, unlike carbide. Equally important, the wire used by a wire EDM is available as a standard, off-the-shelf component. EDM is a low cost tooling option when you need short run stamping (less than 5,000 pieces) and low volume broaching. With EDM, there’s no need to make a die set. That’s why EDM is used to make sewing machine components and prototypes. Instead of using expensive broaches, EDM is a very attractive form of low-cost tooling. This is a reason companies use EDM to produce splines and gear teeth along with all their metal stamping & mold making needs.


Where to Find The Reliable EDM Machines Manufacturer?


About this question, I recommend that you can try to visit the website of OCEAN Technologies Co., Ltd.. This company is specializing in kinds of high quality EDM machines. If you need more information about CNC drilling EDM machines, please do not hesitate to check out OCEAN product pages and feel free to send inquiry to them.


Article Source: Mercatech, Inc.

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