HALLITE SEALS PDF

Embodying more than a century of market experience, Hallite Seals International remains at the cutting-edge of fluid power technology. Established in , Hallite Seals International Hallite Hallite, part of the publically traded Fenner PLC group of companies is a provider of highperformance fluid power sealing solutions for the global power fluid industry. As a global player, Hallite operates across five continents and works with the best-in-class international and regional OEMs and hydraulic cylinder manufacturers by providing first-class commitment to engineering experience. For more than years Hallite has been at the forefront of fluid power technology providing design, engineering, and material expertise for technically challenging and critical applications thanks to a wide portfolio of materials including Polytetrafluoroethylene PTFE , Polyurethane AU , nitrile rubbers NBR and Fluoroelastomers FKM. All Hallite locations have dedicated engineering teams to help our customers chose the most appropriate profile, material and dimension for the required application in their language and time zone.

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Have a requirement? Get Best Price. Get Latest Price. View Complete Details. View Mobile Number. Download Brochure. Send Email. I agree to the terms and privacy policy. Rod Seals Get Best Quote. Wipers Get Best Quote. Bearings Get Best Quote. Unitized Pistons Get Best Quote.

Swivel Seals Get Best Quote. About Us. Hallite are a leading manufacturer and distributor of hydraulic seals and fluid power hydraulics, as well as wiper seals and other custom high performance gaskets, rubber and plastic parts. Hallite Seals International are an ISO accredited manufacturer and provider of Hydraulic and Pneumatic Seals and sealing solutions to the global fluid power industry.

We operate in all five continents of the world, and work with a number of major international companies - renowned for their commitment to engineering excellence. Nature of Business Retailer. Interested in this product? Get Best Quote. Rod Seals Get Latest Price. The rod seal is the most critical seal on any type of fluid power equipment preventing leakage of fluid from within the cylinder to the outside.

Excessive leakage through the rod seal can reduce equipment performance, and also in extreme cases can cause environmental issues.

Small amounts of leakage on the rod are cosmetically unattractive, and in many applications are becoming increasingly unacceptable. Hallite offers a wide range of hydraulic rod seals for both single-acting and double-acting systems. These include a unique profiled NBR energised polyurethane PU seal, and a specifically designed three element seal for the mining industry comprising of an O-ring energiser, PU shell and a polyacetal anti-extrusion ring.

Particular attention should be paid to pair the rod seal and the wiper for the best sealing performance. If a less aggressive rod seal is paired with an aggressive wiper, the wiper can scrape off the microscopically thin film of oil that remains on the rod in microscopic surface imperfections during the return stroke, resulting in system leakage.

Yes, I am interested! Piston Seals or Piston Rings are used in hydraulic cylinders for fluid sealing and are designed to ensure that pressurised fluid does not leak across the cylinder head as the system pressure pushes the piston down the cylinder bore. The choice of piston seal is decided by the way in which the cylinder operates. For a cylinder which is exclusively single-acting, capable of sealing dynamic pressure from one side unidirectional , it is always best to choose the type of seal designed to provide optimum sealing qualities for single-acting functions.

The best sealing capacity of a double-acting cylinder, capable of sealing dynamic pressure from both sides bidirectional , is achieved by choosing a double-acting seal. A piston design where two single-acting seals on the piston for a double-acting cylinder are used can easily give rise to a breakdown. The reason is that a very high pressure can be trapped between the seals. Piston seals, both single- and double-acting, can be designed for and used with integrated or separate back-up rings and guide rings.

Hallite offers a wide range of piston seals that provide the ultimate in leakage control. Vee pack sets are multiple-lip chevron seals, usually composed of a male and female adaptor and a group of three or five vee rings, are popular for sealing rods and pistons in medium to heavy duty applications and are compatible with both single and double acting cylinders.

Wipers Get Latest Price. Wipers are installed in the sealing configurations of hydraulic cylinders to prevent contaminants such as dirt, dust and moisture from entering the cylinder as they retract back into the system. Contamination can cause significant damage to the rod, cylinder wall, seals, and other components, and is one of the primary causes of premature seal and component failure in a fluid power system.

The wiper seal is the most undervalued seal type in the hydraulic cylinder in relation to its important function. Particular attention should be drawn to its selection, the surrounding environment and service conditions must also be taken into special consideration.

Bearings Get Latest Price. The function of the Bearing or wear ring is to guide the piston and piston rod of a hydraulic cylinder, as well as to withstand arising side loads. At the same time, it prevents any metal-to-metal contact, which will damage and score the surfaces and eventually cause seal damage, leakage and component damage.

Hallite offer bearings in various types of materials all of which offer high wear-resistance and demonstrate excellent friction properties. Our T63 polyacetal wear ring is suitable for both fluid and pneumatic cylinder applications, the T87bronze filled PTFE bearing is suitable for higher temperature applications.

A glass filled nylon wear ring T offers high bearing load capacity over a broad range of temperatures, whilst our high strength nylon bearing T is suitable for telescopic applications. The T, which is a woven fabric reinforced polyester resin bearing is available in three forms, cut rings, spiral lengths and flat coils, and is compatible with a wide range of fluids, and is used extensively in mining applications.

Unitized Pistons Get Latest Price. The Hallite Type is a ready to fit complete piston. The steel piston has a non-metallic bearing material moulded over the outer diameter using a special proprietary process. It is then finish machined to provide a tight tolerance with the bore of the tube and also for the installation of the chosen seal.

Originally designed and patented by Hallite Seals over 25 years ago, the Unitized Piston continues to establish and develop itself as a unique solution for our customers many and varied applications. An accepted solution for Construction, Off Highway and Agricultural cylinders, the Unitized Piston provides the OEM customer with proven extended service life whilst significantly reducing manufacturing and assembly costs.

Produced today in a wide range of sizes, bearing and seal materials, Hallite's exclusive Unitized Piston is available off the shelf in numerous standard metric and inch sizes. Swivel Seals Get Latest Price. Swivel seals are designed for slow rotary applications, such as the hydraulic swivels, which allow the transmission of pressurised services between the chassis and body of mobile hydraulic equipment. The primary purpose of the buffer seal is to protect the main rod seal from the effects of shock pressure loading.

It is important that the buffer seal allows adequate lubrication of the main seal and does not cause a pressure trap between itself and the main seal. The Hallite designs of buffer seals have features that help to prevent this possibility. Additional Get Latest Price. To round off the Hallite product range the additional products listed here are available for various applications.

For information about other material options available, please contact your local Hallite Seals office. Save time! Get Best Deal. Set ','reqSent':'Yes','rcvName':'R. Related Categories. Pneumatic Seals. Compact Seal. Hydraulic Seals. PU Piston Seals. Piston Rings.

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The product finder has been developed to help guide you through our catalogue of seals to quickly and easily find the right part for your application. Hallite produces a range of seals for many different applications from mining through to agriculture. Designed to operate in the most extreme conditions. Our experienced staff are able to help assist you in getting the right parts to suit your application. Hallite is committed to keeping our customers connected.

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Hallite Piston Seals

Have a requirement? Get Best Price. Get Latest Price. View Complete Details. View Mobile Number.

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