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DSH Brand filled piston custom piston ring

DSH Brand filled piston custom piston ring

DSH Brand filled piston custom piston ring

Delivery Time
3-7 days
Standard product/Customized product
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Product Comparison
ptfe seal uses high-quality rubber materials in its production. It is manufactured based on advanced production equipment and consummate technology. It is use-durable and quality-reliable with good properties including sealing, aging resistance, corrosion resistance, waterproofness and wear resistance.Compared with other products in the same industry, DSH Seals's ptfe seal has the following characteristics.
  • DSH-Piston Seal Catalogue Spgw-excavator Parts Hydraulic Piston Compact Seal
    DSH-Piston Seal Catalogue Spgw-excavator Parts Hydraulic Piston Compact Seal-1
Enterprise Strength
  • DSH Seals has a professional team composed of various middle and senior technical talents. The team members are experienced and skilled, so the technical guidance and consultation are guaranteed.
  • DSH Seals gives priority to customers and makes effort to provide them with quality services.
  • DSH Seals's mission is to provide consumers with safe and environment-friendly products. With a focus on sincerity-based management and quality, we are committed to high standards and strict requirements in the production process. Our goal is to achieve high output, excellent quality, and high efficiency.
  • After years of exploration and development, DSH Seals accumulates rich industry experience and enjoys a high popularity in the industry.
  • DSH Seals's products are high-quality and are well received by consumers. The sales outlets are located in many cities in China.
Company Advantages
1. DSH piston seal is manufactured/processed under standardization production system. It exhibits improved wear performance and tear resistance
2. piston seal design deserve popularization for its piston ring. It can be customized to operate in a broader range of applications
3. The good quality piston seal catalogue has helped DSH to win many customers. It features temperature cycling resistance (material degradation, heat ageing

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. Guangdong DSH Seals Technology Co., Ltd has gained wide popularity in the piston seal industry.
2. Guangdong DSH Seals Technology Co., Ltd has a professional design team to design the most unique piston seal design.
3. DSH seriously performs responsibilities of piston ring and advocates the code of conduct of piston rod seal. Inquire!
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