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DSH heavy hydraulic piston seals sizes manufacturer for excavator

DSH heavy hydraulic piston seals sizes manufacturer for excavator

DSH heavy hydraulic piston seals sizes manufacturer for excavator

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3-7 days
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Product Details
DSH Seals's hydraulic seal is processed based on advanced technology. It has excellent performances in the following details.This quality-reliable hydraulic seal is attentively manufactured based on high-quality and thick materials. It is widely used in industries such as petroleum, chemical, machinery, and metallurgical.
  • DSH-ptfe piston seal ,hydraulic piston seals sizes | DSH
Application Scope
hydraulic seal, made of good materials, is firm and durable with good sealing performance. It can be widely used in machine tools, boats and ships, autos, aerospace equipment, agricultural machinery, metallurgical machinery, petroleum machinery, chemical machinery, and construction machinery.DSH Seals insists on providing customers with one-stop and complete solution from the customer's perspective.
  • DSH-ptfe piston seal ,hydraulic piston seals sizes | DSH
Company Advantages
1. This brand of ptfe piston seal is of attractive design.
2. This product has an outstanding quality that exceeds industry standards.
3. 'Strictly abide by the contract and deliver promptly' is Guangdong DSH Seals Technology Co., Ltd's consistent principle.
4. As long as there is request for help about design or other things, Guangdong DSH Seals Technology Co., Ltd will be ready to help for our customers.

The common compact seal SPGW is made of a sealing ring, an O-ring and back up ring. Sealing ring material is generally filled with PTFE; the O-ring is made of nitrile rubber (NBR). ) or fluororubber (FKM); the back up ring is made of polyoxymethylene (POM) material. The combined seal SPGW has good dynamic and static sealing performance, low friction coefficient, no creeping at startup, and more importantly, stable operation.

SPGW is a high performance double acting compact piston seal consisting of a dynamic bronze filled PTFE friction ring, a profiled preloaded NBR ring and two POM back up rings. It has excellent resistance to leakage, extrusion and friction. SPGW compact seal is especially suitable for long-distance travel. When used in a variety of fluids and high temperatures, it is suitable for wider piston spacing. By stacking, the SPGW compact seals form a compact structure and excellent performance, mounted in a single piston groove. Its geometry gives it overall stability, wear resistance, tightness, low friction and long life without maintenance. Due to the initial shrinkage range set, the seal has good sealing properties at low pressure. When the pressure is raised, the sealing performance remains good because the elastomer exerts a stress on the combined seal ring, thereby converting the axial force from system pressure to radial compression. Suitable for overloaded nylon shielding rings. Designed to protect seals from crushing damage, it meets the requirements of a wide range of hydraulic cylinders.


  • Low friction coefficient; no stick-slip effect.

  • Possible increase in extrusion gaps.

  • Excellent extrusion resistance even during pressure peaks.

  • Excellent abrasion resistanceAssembled by deformation.

◆◆ PTFE, nbr/fkm rubber,POM

Material descriptionPTFE filled Bronze, PTFE filled carbon fiber and MoS2, PTFE filled Graphite, PTFE filled PI, PTFE filled Ekonol, PU and so on.
Available ColorBlack, green, coffee, white, red, blue, gold and so on
Material StrengthSPGW seals can be used under high pressure conditions. It has excellent leak resistance, extrusion resistance and wear resistance.
Applied deviceHydraulic equipment / standard cylinder / machine tool / injection machine / hydraulic machine, etc.

DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal
DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal-1
DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal-2
DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal-3
DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal-4
DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal-5

◆◆ PTFE, nbr/fkm rubber,POM

DSH-Pneumatic Cylinder Piston Seals Hydraulic Cylinder Compact Seal-6

Technical Data

PressureTemperatureSliding speedMedium
Standard≤50 MPa-40…+160 ℃≤1.5 m/sMinderal oil based hydraulic fluids, barely flammable hydraulic fluids,water,air and others.

elastomerslide ringBackup ring
Standard (on request)FKMPTFE-carbonPTFE
Max Gap EE≤1.0mmE≤0.8mmE≤0.6mmE≤0.4mm

Order Example for standard version:

Diameter  D=100mm   

Order Code: SPGW 100*85*12.5

Installation Dimension table based on Metric Size(mm)

D H9d h9L+0.2HC≥
Order List
Order NumberDdHh
Order NumberDdH
SPGW 0500503698.5SPGW 150015012716
SPGW 0600604698.5SPGW 160016013716
SPGW 065065501110.5SPGW 170017014716
SPGW 070070551110.5SPGW 180018015716
SPGW 075075601110.5SPGW 185018516216
SPGW 080080651110.5SPGW 190019016716
SPGW 085085701110.5SPGW 200020017716
SPGW 090090751110.5SPGW 210021018716
SPGW 095095801110.5SPGW 220022019716
SPGW 10001008512.512SPGW 225022520216
SPGW 10501059012.512SPGW 230023020716
SPGW 11001109512.512SPGW 240024021716
SPGW 115011510012.512SPGW 250025022217.5
SPGW 12001201051615.5SPGW 260026023217.5
SPGW 12501251021615.5SPGW 270027024217.5
SPGW 13001301071615.5SPGW 280028025217.5
SPGW 13501351121615.5SPGW 300030027217.5
SPGW 14001401171615.5SPGW 320032029217.5
SPGW 14501451221615.5

Company Features
1. As one of the top ptfe piston seal supplier, DSH is a popular company for years.
2. Guangdong DSH Seals Technology Co., Ltd possesses tremendous technology and excellent manufacturing equipment.
3. Guangdong DSH Seals Technology Co., Ltd constantly pays attention to the innovations and improvements of hydraulic piston seals suppliers . Get an offer! DSH Seals will continue to enrich the product line that is popular with consumers around the world. Get an offer!
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