Piston seals

Piston seals

Piston seals are used in hydraulic cylinders to keep the oil in place. These seals sit between the cylinder head and cylinder wall (bore) and prevent oil from leaking past the cylinder head. This oil is used to build up pressure on one or two sides to move the piston rod back and forth. For a cylinder that is single-acting only and capable of sealing dynamic pressure from one side, it is always best to choose the type of seal specifically designed for single-acting functions. The best sealing capacity of a double-acting cylinder, capable of sealing dynamic pressure from both sides, is achieved by choosing a double-acting seal. Both types of seals can be used with integrated or separate support rings and/or guide rings. Seal Supply offers a wide range of hydraulic piston seals for both single-acting and double-acting hydraulic systems. Our delivery programme includes seals in NBR and Polyurethane(PU) with or without a support rings and guide rings, but also, for example, O-Ring activated PTFE seals.

In order to arrive at the right choice, it is in any case important to find out whether the piston seal should be single-acting or double-acting. In addition, it is important to find out which medium the seal faces, how much pressure applies and what speed and temperature requirements the seal must meet.

Hallite seals

In addition to its extensive standard range, Seal Supply is also an official distributor of Hallite for the Dutch market. With its extensive and high-quality range, Hallite is a big name in the world of hydraulic seals. As a distributor, Seal Supply ensures that Hallite's entire range is easily and quickly available throughout the Netherlands. With Hallite's range and Seal Supply's standard package, you have an extensive choice of quality products. Seal Supply keeps at least the runners-up Hallite 780, 58 and 777 in stock for you as standard.

Customisation

Using a CNC production machine, Seal Supply produces customised seals. This PU1TEC machine contains high precision cutting tools, these tools come into their own when producing seals in a critical environment. Thanks to our wide variety of profiles, we can manufacture your desired seal perfectly and directly. In addition to profiles, we naturally also have a wide range of materials at our disposal.

The online wholesaler for all your seals

You can easily order vacuum seals online, by phone or by email from Seal Supply. With your own webshop account, you benefit from the convenience of quickly finding the right products, e.g. via our handy ‘smartsearch’ search function. Here you have 24/7 insight into available stock, delivery times and your prices, and you can place orders with us at any time.

Cross-reference list ‘standard’ piston seals

Double-acting piston seals

Single-acting piston seals