Have Preliminary Understanding of The SEMS Screws

Do you know what are SEMS screws and how do they use? If you don’t understand, try to read this article to have preliminary understanding of the SEMS screws.

 

Washers are often used in combination with screws to improve the structural integrity of an assembly. Typically, they are separate components. However pre-assembled screws and washers – the SEMS screws, have simplified and improved efficiencies in many manufacturing processes.

 

What is a SEMS Screw?

SEMS Screw - Hex Flange Head Self Drilling Screw Harden RuspertA SEMS Screw is a generic term used to describe a screw pre-assembled with a free-spinning lock washer. It is a permanent assembly with the washer held in place by the major diameter of the screw thread being larger than the hole of the washer. The SEMS screw is simple, easy to use and available in many different styles making it well suited for many applications.

 

Advantages of the SEMS Screw:

 

  • Low cost and widely available
  • Increases productivity by eliminating hand assembly of individual components
  • Permanent assembly assures that the washer is not dropped, lost or forgotten
  • Ease of use with hand drivers and in automated production programs
  • Available in most screw and washer combinations

 

Key Considerations When Choosing SEMS Screws:

 

  • Select the correct configuration for the specific task at hand
  • Good design ensures savings in the long run
  • Proper finishes perform optimally and are aesthetically pleasing
  • Ease of use, particularly in difficult spaces

 

Fu Yeh International Corporation is one of the leading manufacturers in the fastener fields. They provide all kinds of screws, t-nut, stamping parts, spring, nuts and toolings. Fuh Yeh promises to provide competitive prices, on time delivery with best service. If you want to get further details about SEMS screws and other fasteners, welcome to visit their website: http://www.fu-yeh.com and send inquiries to them.

 

Choose Fu Yeh International Corp. to Obtain The Most Numerous Screws Selections Here.

 

 

Article Source: http://www.fastenerexperts.com/sems-screws/

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The Way of Choosing the Right Surface Grinder

The surface grinder you need will depend largely on the material that needs grinding. For instance, if any metal surface needs grinding, the grinding wheel should be made of a highly abrasive material, and it should have numerous cutting niches embedded in it. On the other hand, for grinding a wooden surface, what you need is a lesser abrasive wheel.

 

The Types of Surface Grinder

 

There are two basic types of surface grinders, and they are:

 

  • The Planer-type
  • The Rotary-type

 

In the Planer-type, the grinding wheel remains stationary, while the worktable moves in a back-and-forth motion. This movement is controlled either manually or through some hydraulic drive system. These grinders are selected when overall grinding is required once the machine component has left the foundry.

 

In the Rotary type, the grinding wheel rotates, as does the circular worktable. These rotary surface grinders are selected when the precision machine parts require grinding, before being fitted into its housing. In both the surface grinder types, the safety hazards are well taken care of, and because of this, accidents rarely happen.

 

Things to do After a Surface Grinding Job Is Over

 

After a surface grinding job is over, the entire work station should be cleared of debris. If the work was done on a wooden material, the saw dust may be supplied to those who make composite boards, while the shavings from the metal surface can be sent to steel mills for melting.

 

However, what matters most is the safe clean-up of the work area, as otherwise, someone might get injured from carelessly thrown bits of metal shavings. Also, the surface grinder needs attention after each operation. It should be checked for any flying debris that blocks its air vents or any damage caused to the moving parts.

 

TONG YI Machinery Inc. is the outstanding rotary surface grinder manufacturer in Taiwan. If you need more information about kinds of surface grinding machines, welcome to visit their website and feel free to send inquiry or contact with them.

 

 

Article Source: http://EzineArticles.com/6191258

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Overview of Cast Aluminum Heaters

Cast aluminum heaters or cast-in heaters are an essential component for all plastics extrusion machinery. Extruder barrel & die heaters are made of aluminum or bronze. Stringent machining tolerances on the inside working surface and high quality heating element construction guarantee high performance.

 

Cast aluminum heaters offer a high quality and efficient method of heating and controlling Extruders, Compression Molding Platens, Heat Sealers, and Vacuum Forming Platens.

 

The heat cool capabilities of cast-in heaters provide high accuracy temperature control of +/- 2º.

 

These precision cast aluminum heaters are available in various sizes and watt densities ranging from 10 t0 60 watts per square inch.

 

They are pressure casted insuring a dense porosity free casting that can been supplied with either cooling fins or seamless stainless steel cooling tubes that guarantee longer life.

 

They can be casted into any shape and size needed, thus fully covering the part to be heated and virtually becoming the part itself. Most Cast In heat cool bands are made to customer specifications, but standard sizes are available out of stock.

 

Cast aluminum heaters are contamination and corrosion resistant and can with stand high temperature and pressures in harsh environments with years of trouble free service.

 

Cast Aluminum Heaters – Cast-In Heaters Features:

 

  • High operating temperatures
  • Liquid cooling or air-cooling fins
  • Any size or shape available
  • Pressure casted ensures porosity free high density casting
  • Extremely ruled and resistant to damage
  • Precise and accurate control of temperature due to heat cool action
  • High watt densities available

 

Cast Aluminum Heaters – Cast-In Heaters Applications:

 

  • Plastics Extrusion Machinery
  • Hot Melt-Glue Pots
  • Blown Film Dies
  • Runnerless Molding-Plastics
  • Textile Industry
  • Commercial Food Service
  • Hot Stamp and Die Heating

 

 

Cast In Heaters Specifications:

 

  • Size – As required any size possible
  • Voltage – 120, 240, 480, or 600 volts
  • Phase – Single or Three phase available
  • Termination’s – Leads, Terminal Boxes, Screw/Threaded Studs
  • Machining Tolerance – 005″ Standard 2
  • Wattage – Aluminum Up to 35 W/in2, Bronze Up to 50 W/in
  • Maximum Temperature – Aluminum 700ºF, Bronze 1400ºF
  • Options – Holes, Grooves, Notches, Cutouts, Available

 

If you want to learn more information about cast aluminum heaters, welcome to check out the product pages of CT Heater & Instrument Co., Ltd… They are the professional manufacturer of kinds of heaters. Through email or telephone to contact them to obtain details you need.

 

Article Source: http://www.process-controls.com/hcs/cast_in_heaters.html

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Technologies of Proximity Card Reader

Passive Proximity Readers

 

Nearly all building access cards based on proximity are passive. There are roughly 125 million cards used for accessing secured buildings today.

 

Passive technology implies there is no battery or power source required in the card. The proximity reader constantly transmits a low level fixed RF signal that transmits energy to the card. When the card is held at a certain distance from the reader, the RF signal is absorbed by a small coil inside the card and powers the card’s chip which contains a unique identification code. Once powered, the card transmits the code to the reader.

 

The advantages of proximity over other technologies are numerous: no moving parts, no mechanical wear, no slots, no read heads to maintain. The reader can be concealed inside walls or special enclosures and, even when the reader is surface mounted, it has no openings to jam or tamper. The card is the most secure and practically impossible to duplicate. Cards can usually be read through a purse or wallet and through most other nonmetallic materials. Card and reader orientation is not critical.

 

Reading ranges depend primarily on the reader. The larger the reading range, the larger the reader’s concealed antenna and hence, the size of the reader. There is a great variety of proximity readers designed for different environments including vandal-resistant mullion mount, smaller decor style and integrated keypad/reader units.

 

Active Proximity Readers

 

Active proximity technology implies there is a battery within the card. Since the card has power the range is greatly expanded (3-15 feet vs. 1-5 inches). The RF signal is low level (<1mw) but the frequency used is much higher. Applications tend to be uniquely applied, although recently the application in computer access control is more prevalent.

 

Orientation of the card and reader become important. Since the RF frequency is much higher several other effects may be noticed such as exact distance due to the fact that the signal bounces off of other object.

 

Active technology is useful where a hands-free (as opposed to contactless) data exchange is required. Since the range is much longer, it is generally not very practical for door access (except gated parking lots) since walking past the door may unlock the room. The typical application is to detect the presence of a person at a computer and allow access without intervention. Equally important is to automatically lock the computer when a person steps away.

 

Read range is adjustable between 3 to 15 feet.

 

Active cards are generally thicker (1/5 inch) as a result of the replaceable battery requirement

 

Presence Detectors

 

Sonar technology is a relatively new entrant as a tool for security with PCs.

 

In computer security there are two primary components to consider:

 

  1. Unlocking the ‘locked’ workstation, and
  2. Locking the workstation after the logon user leaves the station.

 

The first component generally gets the most attention and array of solutions while the second is generally handled by a time-out screen saver or company mandated policy. Both solutions for ‘2’ above are fraught with exposure issues.

 

The use of sonar technology is a means for detecting the presence or absence of an individual, and performing a specific operation when there is a change. It is important to understand there is no real identification of the user performed with this technology.

 

When a user steps away from an authorized session, the sonar device can detect this occurrence and send the appropriate keystrokes to secure the workstation (log off or lock). This improves solutions associated with policy since the device never forgets to lock. It is also a great improvement over a time-out in that this occurs immediately as opposed to a parameter set by the minute(s).

 

Likewise when the user steps up to a locked workstation, the appropriate keystrokes can be set to call up the logon dialog.

 

This technology can be a great aid for other forms of authentication such as biometrics.

 

Pongee Industries Co., Ltd. is the company of specializing in proximity reader, writer, and programmer. They also provide kinds of high quality access controllers for customers to select. Need more information, welcome to visit the Pongee’s website and feel free to contact with them.

 

 

Article Source: https://www.rfideas.com/support/learning-center/proximity-reader-technologies

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Recycling Baler – Why Do You Need One?

Recycling balers are one of the most useful recycling equipment designed in the recent time. As cardboard is extensively used for packaging, a large amount it comes as waste in landfills. Recycling balers help conserve the environment by crushing the cardboard and compacting large amounts into a single are Cardboard Balers which is easy to transport. Cardboard balers are basically equipment in which cardboard is fed. The press installed within the balers helps to compress the cardboard. The compressed bales are tied off before it is released. Two types of balers are largely used – horizontal cardboard baler and vertical cardboard baler.

 

Why Cardboard Balers are rising in popularity?

 

Cardboard balers are becoming hugely popular these days as it not only helps conserve environment but also help companies save a huge amount of money. Commercial establishments that are increasingly making use of recycling balers include retail outlets, restaurants, office, convenient stores, warehouses, and pharmacies. Discussed here are some of the major advantages of a cardboard baler.

 

  • Follow rules and avoid fines

    – To conserve the environment, in many countries Governments have set up rules and regulation for companies regarding waste disposal. It is suggested that the producers of cardboard’s should be responsible for the reprocessing and recycling of cardboards. A fine is imposed on companies who fail to follow such rules. In this regard, cardboard baler helps companies abide by the rules and avoid fines.

 

  • Help economize on waste disposal

    – Through the use of recycling balers, the recyclable material is compacted significantly. Companies thereby save on the cost of hauling the recyclables. Besides, if a company does not have a recycling facility of its own and decides to sell the recyclables to a recycler, it again stands to make money.

 

  • Help reduce storage needs

    – As the cardboard’s are compacted through the use of balers, they’ll occupy less space. This means companies would not need to allocate a large amount of space for keeping the baled material. This not only helps companies economize on space, which is a valuable resource but also help safeguard the life of workers through efficient material management.

 

  • Helps reduce guilt

    – Environment is everybody’s concern. Throwing a large amount of material produces guilt in the minds of sensitive human beings. However, by making use of recycling equipment such as cardboard balers, people experience a feel good factor as they get a feeling that they too are doing their small bit towards environment conservation.

 

Godswill is the professional manufacturer of recycling equipment. They can offer baling presses machine, cardboard balers, paper baler, recycling balers, and more recycling equipment with high quality and competitive price. If you need more information about recycling balers, welcome to visit their website and feel free to contact with Godswill.

 

Article Source: http://www.norcalcompactors.net/cardboard-baler-why-do-you-need-one/

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Features of A Turret Milling Machine

Through This Article, You Can Get More Features And Introduction About Vertical Turret Milling Machines.

 

A milling machine is a highly versatile machine tool which is used for machining solid materials. It can execute a large number of operations that includes cutting, planing, drilling, shaping, contouring, die sinking, etc. Milling machines are basically classified in two forms, such as horizontal and vertical, which actually refers to the orientation of the main spindle. In a horizontal machine, the cutting blade extends horizontally. While in a vertical machine, the cutting edge is held vertically above the work piece.

 

About Turret Milling Machine And How Does It Work?

 

The turret milling machine is one of the sub categories of the vertical milling machine. It primarily operates by moving the table around the cutting blade in all the directions. This milling machine has the ability to cut various types of objects. The vertical turret milling machine consists of a stationary spindle and a table which is moved in the perpendicular as well as parallel direction to the spindle axis, in order to cut the work piece. This type of machine provides various methods of cutting with the help of a quill. The quill enables the milling cutter to be raised and lowered in the vertical direction for cutting the required material.

 

A wide range of turret milling machine are now available in the market. They have a variety of features, functions, dimensions, and specifications. Hence vertical turret milling machines are regarded as the most versatile milling machines. However, the large machines are complicated to operate. This is due to the fact that as the machine size increases, the upward and downward movement requires considerable effort, and it is also difficult to reach the quill feed handle. They are therefore preferred for die sinking operations that involve machining a mold into a block of metal.

 

Features of Vertical Turret Milling Machine?

 

Moreover, the turret milling machine can be repositioned anytime for improving the functionality of the machine. This highly resourceful milling machine comprises of several options for aligning the spindle in a number of positions. It has a unique design and a sturdy structure. Besides this it includes various user friendly features and has greater functionality. This highly effective machine is also well known for its low maintenance and high performance. And since it is a multi-purpose machine it has the capability of manufacturing a variety of products. It is particularly suitable for producing a wide range of automobile parts. In fact this vertical milling machine is relatively less expensive than the horizontal milling machines; and hence they are more commonly used throughout the world.

 

One of the latest features of these vertical turret milling machines is the use of computer numerical control technology, which is popularly known as CNC. Using this modern technology, the user can input simple as well as complex instructions for operating the different parts of the machine. The CNC technology also helps to increase the productivity of the user, and also enables them to continuously produce a large quantity of accurate and similar products. Some of the recent models also include a hand held remote control with buttons for machine feeds and spindle movements.

 

By The Way

 

TOP-ONE Machinery Co., Ltd. is dedicated to achieving 100% customer satisfaction by supplying world-class quality products and services. TOP-ONE provides you the best vertical turret milling machines with high quality and competitive price. To obtain further details about milling machine series, welcome to check out their website and feel free to send inquiry to TOP-ONE.

TOP-ONE Machinery

 

 

← Click Here Go to TOP-ONE!

 

Article Source: https://ravimachines.com/features-of-a-turret-milling-machine/

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Taiwan Leading Tapping Center Supplying Expert – Ares-Seiki

Looking for the best tapping machines? Check out the website of Ares-Seiki right away.

 

Established in 1994, ARES-SEIKI is the company of specializing in manufacturing tapping machines for years. They provide full series of CNC tapping centers:

 

  • A series has the highest cutting tool capacity and is built for extremely intricate processing.

 

  • R-series has a simple structure which is designed to maximize product quality.

 

  • S-series feature dual work stations, rotary worktables, and moving column structure allows operator to effectively reduce idle time needed to change workpieces during machining.

 

Ares-Seiki followed the maxim “Quality as Priority Guarantees Durability, Perpetual Service Ensures Vitality.” Years of affirmation by its clients both domestic and abroad confirms that Ares-Seiki delivers tapping machines of high quality and functionality, and its service is exceptional.

 

Insisting on maintaining the same standards and quality as advanced countries, the company was EMC and CE certified in 1996, ISO9002 certified in January of 1999, and TUV of Germany granted ISO9001-2000 certification in 2002.

 

Providing the client with both top quality advanced machinery as well as excellent after sales service is a tradition for Ares-Seiki. If you need further details about tapping machine and their company profile, try to visit their website and feel free to contact with Ares-Seiki.

 

Click Below for More Details:

Ares-Seiki Tapping Machine Supplier

NO.256, Tu-Cheng Rd., Da-Li, Taichung, Taiwan 41274

Tel: +886-4-24925555

Fax: +886-4-24966959

E-mail: ares999@ms16.hinet.net

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How Do I Choose the Best Luggage Strap?

Many Advantages Are Brought By Using Quality Luggage Strap.

 

A luggage strap is a good way to identify your bag when it comes through baggage claim, as well as a good way to ensure it stays closed. These are typically very inexpensive, and are sometimes even given out by travel companies for free when an individual books a trip. The best luggage straps are made of durable materials such as nylon, with a sturdy clasp. Choosing a luggage strap in a bright, easily identifiable color is a good idea as well, to make it easier to spot. Of course, it is also important that the strap is adjustable to fit around different sizes of suitcases.

 

Airline regulations generally forbid locking luggage, so it is important that the luggage strap is removable without a key if necessary. It is important to select a strap that has a sturdy clasp, however, that cannot be easily pulled apart to ensure it does not break when it is handled. Luggage is often handled pretty roughly, particularly when it is taken on and off a plane, so be sure to choose a luggage strap that is also made of durable materials. Nylon materials, similar to those used on soft suitcases, are some of the best choices because they are easy to wrap around a bag, but will not snap in half if stretched.

 

The color of the luggage strap is an important choice as well. Muted colors may be more stylish and may match the luggage better, but bright neon colors can make your bag much more distinguishable from all the other ones coming through the baggage claim area. In addition to color, you may be able to get a personalized or monogrammed luggage strap for an extra fee. This too can make it more noticeable and less likely that someone will pick up your bag by mistake. Regardless, it is still important to attach identifying information to your bag in case it becomes lost.

 

Unless luggage straps come specifically with your suitcases, you will want to be sure to purchase adjustable luggage straps. These allow you to place them on any bag, including oddly shaped bags such as duffel bags, and simply lengthen or shorten them as needed. Some adjustable luggage straps may also be used as a carrying handle, which can make the strap even more beneficial, particularly if the bag is a large or awkward size. Finally, keep in mind that if a travel company provides a free adjustable luggage strap as part of a group trip, they may have a specific purpose in doing so, such as recognizing trip participants, so be sure to use it.

 

TAY YOUNG is the manufacturer of specializing in providing various luggage straps. All of their luggage straps are a complete combine with high quality and excellent material. If you need more information about luggage straps, welcome to contact with Tay Young, they can supply satisfy customers require luggage straps size, material, color and logo available.

Tay Young Contact Information

 

Article Source: http://www.wisegeek.com/how-do-i-choose-the-best-luggage-strap.htm

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What Are The Advantages of The Power Chuck?

Power chuck is a mechanical device used to clamp the workpiece on machine tool, clamping characteristics of high precision, small abrasion, large clamping force and stability, good dynamic balance, especially suitable to the high speed of CNC lathe, power chuck has been integrated into the life of each one of us, for our life to bring comfort and convenience.

 

What are the advantages of the power chuck? Details are as follows:

 

  • The power chuck clamping in the use of the workpiece, and the clamping force is stable and adjustable, in addition to improve the work efficiency, but also can achieve more than one person to operate CNC machine tools, greatly reduces the cost of human resources, but also reduce fixed investment in equipment.

 

  • Chuck device traditional installation is very complicated, even are very professional needs for two or three days’ time, and now the power chuck the only needs one hour, improves greatly efficiency for the whole installation process.

 

  • The advantages of simple installation, high efficiency. Compared with the traditional chuck, it only needs a simple click switch, automatic centering can realize the workpiece, the other power chuck can make operation of the people at the same time control several equipment.

 

  • To reduce staff stress, so that they can easily go to work, thereby reducing the high strength pressure.

 

  • In the treatment of original technology, greatly prolongs the service life of chuck.

 

Power chuck is an important part of power transmission and motion in machine tool. Because the pneumatic chuck is reliable, quick action, convenient operation, so it is widely used in modern machine tool.

 

Di Chun Iron Work Co., Ltd. is a Taiwan professional power chuck manufacturer. If you are looking for high quality chucks, please don’t miss their website, Di Chun can offer kinds of the best power chucks for you to select. Feel free to contact with Di Chun Iron Work.

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Di Chun Iron Work -Taiwan Excellent Power Chuck Manufacturer

 

 

Article Source: http://www.czivyf.com/en/newshow.asp?ID=105

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Fixed vs. Variable Displacement Vane Pumps

A hydraulic drive system uses a pressurized fluid to deliver force to distant machinery. Each system has several common components; the most universal is the hydraulic pump. The pump’s purpose is to pressurize the hydraulic fluid so that it will travel down the line and perform work on the other side. In an ‘open loop’ system, the fluid is drawn from a reserve tank, and deposited into the same tank after it has done its work. In a ‘closed loop’ system, the fluid is brought directly back to the hydraulic pump after passing through a hydraulic filter.

 

Fixed Displacement Pumps

A fixed-displacement pump has a set flow rate — every stroke of the motor moves the same amount of fluid. Fixed-displacement pumps are

 

  • Simple
  • Relatively inexpensive
  • Easier to maintain

 

The simplest type of fixed-displacement pump is the gear pump, in which the hydraulic fluid is pushed by rotating gears. In some models, the gears are sequential; in the quieter and more efficient version, the gears are interlocking. Another common variation is the screw pump, which uses the classic Archimedes screw, which looks much like a drill bit, to move the fluid. They have the advantage of providing a high rate of flow at relatively low pressures.

 

Variable Displacement Pumps

In a variable displacement vane pump, the flow rate and outlet pressure can be changed as the pump operates. This results in pumps that are

 

  • More complex
  • More expensive
  • Capable of doing a wider variety of jobs

 

The most common type of variable-displacement pump is the rotary vane pump, which is a variation of the gear pump in which the ‘gear’ is offset and the ‘cogs’ aren’t fixed, but rather extend and retract as the gear turns, allowing the pump to increase the pressure of the fluid by compacting it as it pushes the fluid through. The top-tier pumps, however, are bent-axis piston-and-cylinder pumps, much like the ones that are used in an internal combustion engine.

 

Simple, fixed-displacement pumps are perfect for single jobs that need to be repeated indefinitely over long periods of time; variable displacement vane pumps can be used to power a wider variety of tools, but require more expense and more attention.

 

As the outstanding hydraulic pump supplier, Anson always follows our policy “Technology upgrading, quality insistence, comprehensive service “. Anson committed to provide high quality vane pumps for customers, including intra vane fixed displacement vane pump, variable displacement vane pump, and power mini-pack unit and so on products.

 

If you need more information about variable vane pump and hydraulic pumps, welcome to visit Anson’s website to obtain further details.

 

 

Article Source: http://peerlessengineering.com/blog/hydraulic-pumps-fixed-vs-variable-displacement/

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