Understand More Information About Gearedmotors

Adding a gear-train to the output of any motor will reduce the speed, while simultaneously increasing torque. Gearing can be added to any type of motor. There is no need to waste time designing a geartrain and sourcing all the parts. Chances are, there is a gearmotor solution that you can drop right into your design.

 

Gear train construction ranges from simple plastic drive-trains for toys to beefy metal gear-trains for extra-high-torque applications. Gear trains can be mated to brushed or brushless DC motors as well as steppers. Gear-train modules in a variety of gear ratios are available to fit standard NEMA sized steppers.

 

Applications:

  • Robot Drive Trains
  • Radio Control Vehicles
  • Cordless Tools

 

Advantages:

  • Speed Reduction – Many DC motors simply run too fast to be useful in direct-drive applications.
  • Increased Torque – A lot of work can be coaxed from a relatively small motor if fitted with a suitable gear train.

 

Limitations:

The potential downsides of adding a gear train to a motor include:

 

  • Friction – This is especially a problem with low-cost plastic gear trains used with low-voltage motors. The extra resistance can make these gear-trains balky at low speeds.
  • Inertia – This is more of a problem with metal gear-trains. All that additional rotating mass can inhibit rapid acceleration.
  • Backlash – Any sloppiness in the gear-train tolerances create slack that must be taken up whenever the direction reverses. This can be a problem in precision motion control applications.

 

High-end precision gear-trains can be optimized to minimize any or all of these disadvantages. But be prepared to pay a premium price for them!

 

Hsiang Neng’s geared DC motor is widely used by various applications, such as magnetic bike, vending machine, game player, instrument and appliance, massage tools, stage spinning light, auto shutter, auto mah-jongg table, medical equipment. The DC gear motor is designed and manufactured in high precision and superior quality. If you are interested in learning more information about gearmotors, welcome to contact with Hsiang Neng.

 

 

Article Source: https://learn.adafruit.com/adafruit-motor-selection-guide/geared-motors

Hydraulic Modular Valves and Manifolds

Valves are normally mounted onto a valve skid with piping at the rear, or underneath, to allow quick changes to be made for maintenance purposes. Piping can, however, be dispensed with almost totally by mounting valves onto a manifold block- with interconnections formed by drilled passages in a solid block or by cut-outs on a plate-formed manifold.

 

Modular valve assemblies allow piping to be reduced still further. These follow standards laid down by the Comit~ European des Transmission Oleophydrauliques et Pneumatiques and are consequently known as CETOP modular valves.

 

Modular valves consist of a base plate, shown in Figure 4.45a, and a wide variety of modules which may be stacked up on top. Figures 4.45b to d show some modules available. At the top of the stack a spool valve or crossover plate is fitted. Quite complicated assemblies can be built up with minimal piping and the ease of a child’s building block model.

CETOP Modular Valves

 

Mentioned modular valve, I can recommend you to visit the website of ASHUN if you are interested in learning more information about valves. Ashun was established in 1984 as a manufacturer for hydraulic and pneumatic products. For the hydraulic valves, they have 01 series modular valves, directional control valves, pressure control valves and flow control valves. Especially 01 series modular valves which can be afforded high pressure (31.5MPa) and large flow (40L/min).

 

Need further details about modular valves, please feel free to contact with ASHUN.

 

 

Article Source: http://www.valvehydraulic.info/valve-2/hydraulic-modular-valves-and-manifolds.html

Denison Hollow Vane Manufacturing Specialist – Mountop Precision

Denison Hollow VaneEstablished in 1979, Mountop Precision began by providing clients with heat-treatment finishing work, specializing in heat-treatment of high-speed steel and steel molds. Denison hollow vane just is the products that we can offer you.

 

Denison Hollow Vane is one of the double lips vane series, which featuring high quality and durable. Customize Denison hollow vanes are also welcome. Try to check out Mountop’s website to find the information you need. Feel free to contact with us if you are interested in learning more details about double lips vanes or other pump vane series!

 

Show you Mountop’s Denison Hollow Vane Specification

 

  • Material: SKH51, M2, High Speed Steel
  • Hardness: HRC 60°~65°
  • Precision: 0.003~0.005mm or custom-made is acceptable.

 

 

Mountop Precision Industrial Co., Ltd.

No. 1, Alley 36, Lane 229, Chung Shan Rd., Sec. 1, Wu Jih Dist., Taichung City , Taiwan, R.O.C.

TEL: 886-4-23377188

FAX: 886-4-23370317

E-mail: vaneinfo@mountop.com.tw

Tell You Some Simple Introduction of Pipe Fittings

The components used in a piping system to connect the various sections of the pipe in order to change the direction of flow, are called fittings. Fittings are made from a number of materials including steel, bronze, cast iron, plastic and glass.

 

Standards have been established to ensure that fittings are made from proper materials and are able to handle the designed pressures. Some of the important functions of these fittings are:

 

  • Changing the direction of flow

 

  • Providing branch connections

 

  • Changing the size of lines

 

  • Closing lines

 

  • Connecting lines.

 

Fittings for Changing The Direction of Flow

 

To change the direction of flow, the pipe fittings that are normally used are referred to as elbows. Elbows generally come in all angles but those that are commonly used are the 45° and 90° ones.

 

Fittings for Changing The Size of The Pipelines

 

The function of the reducer is to reduce the line to a smaller pipe size. One reason for doing so is to increase the pressure in the system.

 

Pipe Joints

 

Pipe joints can be of the screwed, flanged or welded type. Each of these joints which are widely used, have their own advantages and disadvantages.

 

Screwed fittings are joined to the pipe by means of threads. The main advantage of the threaded joints is that the pipe length can be easily tailored at a later stage. As a threaded joint has metal-to-metal contact between the threads of two mating parts of the pipe, the risk of leakage is high. Hence sealing of the threaded joint becomes very important. The traditional method of providing a seal between the mating threads is to coat the threads with a paste dope. In recent years, the invention of Teflon sealing tapes has made for a more effective solution. The Teflon (being a registered trademark of Du Pont De Neumors and Company) tape can be simply wound over the threads for sealing.

 

Flanged fittings are either forged or made as cast pipe fittings. A flange is a rim or ring at the end of the fitting, which mates with another section of the pipe. Pipe sections can also be made with flanged ends. Flanges are joined either by being bolted together or by being welded together. The flanged faces again have metal-to-metal contact and proper sealing needs to be provided between the two mating surfaces to avoid leakages. A gasket is usually inserted between the mating surfaces of two flanges, which are bolted together. Normally, compressed asbestos gaskets can be used under conditions of normal pressure and temperature. However, when the system operates under higher pressure and temperature conditions, higher-grade gaskets are used.

 

Other pipe fittings used in flanged connections include expansion joints and vibration dampeners. Expansion joints have three functions:

 

  1. They compensate for slight changes in the length of the pipes, by allowing the joined sections of rigid pipes to expand or contract with changes in temperature.

 

  1. They allow pipe motion either to the side or along the length of the pipe, as the pipe shifts after installation.

 

  1. They help dampen vibration to some extent and reduce the noise carried along the pipe and originating from distant pumps.

 

It has a leak proof tube that extends through the bore and forms the outside surface of the flanges. Natural or synthetic rubber compounds are used for this purpose, depending on the type of application. Other types of expansion joints include metal bellows (corrugated type), spiral wound types and slip joint types.

 

Vibration dampeners are designed specifically to absorb vibration because vibrations reduce the life of the pipes as well as the operating equipment. They also eliminate line noises carried by the pipes.

 

Wellgrow Industries Corp. is the professional cast pipe fittings and other stainless fittings manufacturer in the industry. If you are interested in learning more information about pipe fittings, try to visit the website of Wellgrow to see what products they can offer you!

 

 

Article Source: http://machineryequipmentonline.com/hydraulics-and-pneumatics/hydraulic-accessoriesfluid-conductors-hydraulic-pipes-and-hoses/

High Precision Taper Collet Holder Manufacturing Expert – SYIC

The best-suited base collet holder is applicable to all the kinds of machining. This holder meets all the requirements for high speed cutting; Accuracy, rigidity, balance, and coolant.

 

Accuracy: super-precise spring collet that dramatically improves the quality of the finished surface and the operating life of the cutting tool.

 

Rigidity: thick holder and 6degree tapered collet design ensure the proper absorption of cutting vibrations.

 

Balance: pre-balanced design minimizes the vibrations resulting from high speed machining.

 

Coolant: compatible with the coolant-through features that maximizes the spindle-through features.

 

Established in 1979, Shin-Yain Industrial Co., Ltd. specializes in manufacturing high precision tool holders, cutting tools, and accessories for lathes, milling machines, CNC machining centers, mill-turn machines, etc. If you need more information about collet holders, welcome to visit our website to see what excellent products Shin-Yain can offer you.

 

 

Shin-Yain Industrial Co., Ltd.

No.198, Jingpu Rd., Qingshui Dist., Taichung City 436, Taiwan

Tel: +886-4-26237575

Fax: +886-4-26237676

E-mail: sales@syic.com

 

 

Article Source: http://www.mst-corp.co.jp/en/mc_tool/colletholder/

Accumulators and Their Capacity

Piston accumulator is a kind of the fluid power component, and is the only one which can store the energy in hydraulic systems. The unique advantage of piston accumulators is energy storage in usually and used in emergency, it also has several functions, such as temperature compensation, leakage compensation, counter balance, shock absorption, transfer barrier, shock dampening and pulsation dampening.

 

Today even modern accumulators possess limited capacity although their parameters develop every day. Alkaline accumulators are most popular accumulators as power suppliers for portable devices. For the past 25 years the capacity of accumulators has increased 5 times (just compare: properties of electronic devices have improved in thousand times). Thus, the accumulator capacity is ultimate and limited by sizes of its case. New advanced technologies don’t increase the capacity considerably, moreover, newest scientific data does not expect significant increases in capacity among this energy sources in the nearest future.

 

Unfortunately, as long as accumulators are based on electrochemical processes, we will be limited by energy storage devices. We will have to use accumulators big in their sizes, heavy, flaky, unpredictable in operation, rather expensive and thus, with a rather short term of life. Moreover, attempts of increase in capacity, reduction of weight and sizes of accumulators have led to by-effects, such as: a shorter service life and an increased self-category, without mentioning higher working costs. The matter is that one of methods to increase the capacity of accumulators is the use of a thinner plate of a separator dividing the anode and the cathode and which collapses faster, a consequence of that is the increased self-discharge. It means that buying an accumulator with a maximum capacity, we obviously get an energy source designed for the minimum durability. Probably, some of you have ever noticed that many accumulators which were produced in the 80’s, 70’s and even in the 60’s are still in use, while those bought in the 90’s are already out of order.

 

Today developments of fuel elements (hydrogen, spirit, gas, etc.) are considered as the most perspective but they are still far from perfect and are inaccessible to ordinary consumers. Along with the improvement of energy products, modernization of power consumers takes place. Much less energy is consumed by modern electronic devices than by their predecessors. All these circumstances allow using advanced achievements of science and engineering in the field of electro-power supply for achievement of more essential results.

 

Ashun piston accumulators have three standard types, A280, B250 and C210, which are all certified by the EU Pressure Equipment Directive 2014/68/EU (MODULE H1) with quality assurance. Their accumulators can be widely used in hydraulic power units of various types of machine tools, we also serve customization, welcome to contact with Ashun Fluid Power Co., Ltd.!

 

 

Article Source: http://EzineArticles.com/3163379

Lathe Chucks and Accessories – What do I need?

When you purchased your lathe, you might not have known just what you were going to do with it or what options were available. Now that you’re gaining some experience, you’re realizing that all of those different chucks and accessories that were available could be quite beneficial for a variety of purposes. However, sifting through the mountains of different parts, chucks, and accessories can overwhelm even the most experienced and harden lathe professional.

 

What is the Difference between Chucks and Accessories?

The chuck is the part of the machine that turns, providing you the opportunity to shape the product in the precise manner that you want. Different chucks will give you different options and opportunities for working the wood or metal (and yes, or the glass). Especially for metal working lathes, chucks can determine the threading spacing for certain projects, allowing you to create the perfect thread for the parts you’re attempting to create, such as bolts, camshafts, or other projects.

 

Accessories offer a breadth of options that can be added to your lathe or used to help enhance the experience, refine the process, or open doors to new opportunities to create even more exciting products using your lathe.

 

Different Choices for Chucks

Some lathe chucks use an integral thread for mounting it to the machine. These tend to be larger machines and are not likely to be used in a residential setting or by a hobbyist. Most other lathes use a back plate for mounting the chuck, which makes it easier to replace and try different chucks for various applications.

 

You can choose from:

  • 2 Jaw chucks
  • 3 Jaw chucks
  • 4 Jaw chucks
  • 6 Jaw chucks
  • Soft Jaw chucks
  • Independent jaw chucks
  • Combination jaw chucks
  • Drawtube actuated lathe chucks

 

The 2 through 6 jaw chucks are used with scroll type lathes and are manual actuated self-centering.

 

An independent 4 jaw chuck is not self-centering, but the individual jaws can be moved independently from one another. These chucks can be used to work on an irregular shaped part, or you can use it to set a piece off center for whatever reason that you would have in doing so.

 

Combination jaw chucks combine the self-centering action of the scroll chuck with independently moving jaws. This adds more flexibility with the ability to have the self-centering benefits. Drawtube actuated lathe chucks are powered using hydraulic or air cylinders to move the drawtube forward or backward. When the drawtube moves, it clamps or unclamps the jaws.

 

Each different type of lathe chucks can perform a wide range of tasks, opening the possibilities of incredible designs and processes. Many of the chucks mentioned here are more than the average beginner lathe worker will need or be able to get the most out of, but each one can be used in many standard lathe machines. The only drawback is that not all of these different types of lathes are available for mini or micro lathes.

 

Now, if you are interested in learning more information about 2 jaw chuck, 3 jaw chuck and so on chucks, welcome to visit the website of Autogrip Machinery Co., Ltd. to see what high quality power chucks they can offer you!

 

 

Article Source: http://www.toolerant.com/lathe-chucks-and-accessories-what-do-i-need/

Why Do Engineers Use Stainless Steel Ball Valves?

As time goes on engineers continue to develop new technology improving operation services for a variety of businesses in a wide array of sectors. The form of the stainless steel ball valve is no different. It has altered in shape and has been modified to achieve maximum results over the years. It is a reflection of the technological advances that have been made by engineers today.

 

A steel ball valve is located inside a tube and enables waste fluids to travel through a passageway. The valve works by placing an existing hole in the steel ball then the placement of the ball is what controls the function of this valve. Once the holes are proceeding in the same direction as that of the passageways the valve stays open. The fluid begins to stream out in an uninterrupted manner. This is vital to the function of the contraption because if the holes are not lined up correctly then the valve closes and the fluid remains encased.

 

Why Stainless Steel?

 

To effectively execute its function, the valve needs to be strong and untainted when exposed to extreme temperatures and pressures. Sometimes the metal valves connect joints that carry a maximum of 200 degrees. Thus, it needs to handle working under such circumstances without dissolving or bowing. Engineers found this metal to fulfill all of these requirements and then some.

 

It also comes in different sizes and shapes. This is for you to find the exact valve size you need for your operations.

 

Also, these are able to come in two designs, sanitary or industrial. The sanitary ones are designed for the pharmaceutical, cosmetic, food, dairy and beverage industries. When you are looking to purchase one of these specify what industry you need the device for. This way you are guided towards equipment suitable to match your business needs.

 

In daily life, some recognizable valves are used in tap water, plumbing, dishwashers and hot water systems. It is easy to comprehend its mechanical function and purpose if you think about how veins and the heart work inside our own bodies.

 

Veins act as a valve permitting the flow of blood to the heart while maintaining a steady, correct pace. If you choose the right stainless steel ball valves for your business then it should act in the same manner.

 

Think about what type of business you are using the equipment for and narrow in on the products recommended, required by law and what material outlasts the rest.

 

Golden Highope Industrial Inc. Ltd. has specialized in manufacturing stainless steel ball valves since 1990, with years of experiences we provide only high quality ball valves to clients. Here we offer more various specification stainless steel valves for you to choose. Check the full Stainless & Carbon Steel Valve series on the website of Golden Highope and feel free to contact with us for further details!

 

 

Article Source: http://EzineArticles.com/7050531

What Are the Different Types of Plastic Raw Materials?

There are hundreds of different types of plastic raw materials. Additionally, each type of plastic may vary in certain specifications, such as density and strength. By definition, plastics are able to be molded, so most plastic raw materials are available in various forms. The choice of plastic rolls, sheets or pellets is usually determined by the type of molding machinery used by product manufacturers. Selection of which plastic compound to use is a matter of what properties are desired in the finished product.

 

Plastic is an organic polymer. Chemically, most are very long chains of repeating hydrocarbons, consisting exclusively or primarily of hydrogen and carbon atoms. There are a few plastics, still relevant to modern civilization, made from very natural organic sources. Rubber is made from the sap of a plant; celluloid is made from cellulose, the ingredient that gives all plants their structural form. The majority of plastics in the modern world have been made from petroleum oil or natural gas.

 

Recyclable plastics are called thermoplastics because their chemical structures are the same in both solid and hot molten states. Less common thermosetting plastics establish their permanent structures once solidified. Plastic raw materials can also be categorized according to whether their polymers line up in an orderly, almost crystalline matrix, or else in a more random, or amorphous structure.

 

When it comes to plastic raw materials, a manufacturer’s buying decision is principally based on the physical requirements of the product they are making. There are many different types of plastic precisely because each has a different mix of properties. Disposable polyethylene (PE) bags are relatively lightweight, but they tolerate a great amount of stretch before easily tearing apart. High density polyethylene (HDPE), on the other hand, is well-suited to form into beverage bottles. Low density polyethylene (LDPE) is particularly tolerant of cold temperature and is often used in furniture and building materials.

 

At the other end of the scale, polyamides (PA) such as variants of Nylon® can withstand very high temperatures and is therefore used for applications such as insulation and mechanical parts. Other technical specifications of a given plastic include its flexibility and elasticity. These variables determine whether a product should be made with polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), or another plastic. Some types of specialized plastic were custom formulated to a single product’s specifications.

 

Plastic raw materials come in many different forms, and this choice is also made in part on the intended product. Bags are made from rolls, for example. More often than not, the choice is influenced by the type of molding equipment the manufacturer employs. Raw plastic in sheet form are needed for compression-molding and vacuum-molding equipment, whereas rods and bricks are fed into most extrusion-molding machines. Small pellets, which are usually the form of any recycled plastic supply, are the preferred form for injection-molding equipment.

 

Prochase Enterprise Co., Ltd. not only provides protective film series products, also offers plastic raw materials to clients. If you are interested in learning more information about this company and its plastic raw materials, welcome to browse the website and feel free to contact with Prochase!

 

Article Source: http://www.wisegeek.com/what-are-the-different-types-of-plastic-raw-materials.htm

What is a Pressure Control Valve and Why Do You Need It?

Pressure control valves are found in virtually every hydraulic system, and they assist in a variety of functions, from keeping system pressures safely below a desired upper limit to maintaining a set pressure in part of a circuit.

 

Every pressure control valve switches (or controls) at a predetermined pressure setting. The switching pressure is generally a variable setting on the valve itself. A change in position of the pressure control valve (i.e. open or closed) occurs either gradually (by control) or suddenly (by switch). Pressure shut-off valves and pressure sequence valves are hydraulic valves with a fixed throttle whereas relief and reducing valves are hydraulic valves with a variable throttle.

 

Pressure valves are hydraulic valves that gradually (control) or suddenly (switch) change in position.

 

The most common types of pressure control valves are the pressure relief valve and the pressure reducing valve. Pressure relief valves control the system pressure by relieving part, or all, of the flow to tank. Pressure reducing valves reduce the pressure supplied to a sub-system of a hydraulic system. Sequence valves are used to direct the flow to a secondary circuit. Unloading valves are used to direct flow to tank at pre-set system pressure.

 

Type of Pressure Control Valves

 

  • Pressure valves, relief function
  • Pressure valves, reducing function
  • Pressure valves, fixed throttle

 

A hydraulic system can only function – as per requirements – by using valves. Thus, you should always look for the correct type of hydraulic valve to serve your intended purpose. You can try to browse the website of ASHUN, the professional hydraulic valves manufacturer in the industry, to get more information about pressure control valves. If you have any questions, welcome to contact with ASHUN via email or telephone!

 

 

Article Source: https://dta.eu/hydraulics/hydraulic-valves/pressure-controls/

Article Source: http://www.hydraulicspneumatics.com/200/TechZone/HydraulicValves/Article/False/6411/TechZone-HydraulicValves