| Customization: | Available |
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| Material: | PU |
| Usage: | Engine, Transmission, Rear Axle |
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This high-performance Step Seal combines carbon-filled PTFE with NBR elastomer for extreme hydraulic rod applications. Designed for OD/RS63/RS65 series with 4.2mm/6.3mm widths, it delivers zero-leakage sealing under 40 MPa pressure while reducing friction by 70% vs traditional seals. Compatible with BSJ/GSJ/HBTS industrial standards.
Key Features
Triple-Sealing Action: PTFE sliding ring + NBR energizer + anti-extrusion geometry prevents leakage in both directions
Ultimate Wear Resistance: 15% carbon-filled PTFE withstands abrasive contaminants and 0.5 m/s rod speeds
Pressure Optimized: RS63 (4.2mm) for ≤25 MPa / RS65 (6.3mm) for ≤40 MPa dynamic pressure (ISO 10763)
Space-Efficient Design: 30% narrower than U-cup seals for compact cylinder construction
Multi-Material Compatibility: Resists mineral oils, HFA/HFB fluids, and biodegradables (-30°C to +150°C)
Technical Specifications
Models: STD, BSJ, GSJ, HBTS
Applications
Hydraulic cylinder rods in excavators and cranes
Injection molding machine platens
Industrial press cylinders
Offshore hydraulic actuators
Heavy-duty mining equipment
Performance Advantages
80% Lower Friction than polyurethane seals
2x Service Life in abrasive environments
Eliminates stick-slip at low speeds (<0.01 m/s)
Withstands 5 million+ reciprocating cycles
Reduces hydraulic oil consumption by 30%
Buffer Seal Integration
Pair with HBTS hydraulic buffer rings for:
Shock absorption during rod deceleration
Contaminant exclusion from wiper seals
Pressure peak reduction (≤60 MPa)
System vibration damping
Customization Options
Non-standard diameters (10mm-600mm)
Alternative materials:
Bronze-filled PTFE for high PV values
FKM energizer for chemical resistance
FDA-compliant grades
Pre-assembled kits with wipers and buffers
Installation Guide
Rod surface finish: Ra ≤0.2μm
Groove perpendicularity: ≤0.03mm
Lubricate with hydraulic fluid before installation
Download CAD drawings and ISO groove dimensions from product resources.
Oil seals are used for automobile engines and geared motors, and are designed mainly to prevent oil leakage from the end of a rotating shaft, or dust intrusion from the outside air. nok oil seal catalog
| Different Types Of Hydraulic Seals | ||
| Application | Type | Material |
| Rod Seals | UN | TPU(PU,Polyurethane) |
| UNS | TPU(PU,Polyurethane) | |
| UHS | TPU(PU,Polyurethane) | |
| IDU | TPU(PU,Polyurethane) | |
| U+S | PU+NBR | |
| UPH | NBR & FKM | |
| Step Seal | NBR+PTFE | |
| VES | Rubber+Fabric | |
| IDI | PU | |
| ISI | PU | |
| Piston Seals | SPG | NBR+PTFE |
| SPGW | NBR+PTFE | |
| SPGO | NBR+PTFE | |
| KDAS | NBR+PU+POM | |
| ODI | PU | |
| OSI | PU | |
| ODU | PU | |
| Dust Wiper Seals | DH/DHS | PU |
| LBH | NBR & FKM | |
| J/JA | PU | |
| DKB | NBR & FKM +Metal | |
| DKBI | PU+Metal | |
| DSI | PU | |
| Wear Ring | WR | Phenolic Fabric |
| Guide Tape | PTFE | |
| Guide Tape | Phenolic Fabric | |
| Buffer Seal | HBY | PU+Nylon |
| Back-up Ring | O-Ring | NBR & FKM |
| X-Ring | NBR & FKM | |
| PTFE Washer | PTFE | |
| ......................................................................................................... More types please contact us. Customization is welcome. |
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Rod Seals: UN U+S UPH Step Seal V Type IDIOil seals are used for automobile engines and geared motors, and are designed mainly to prevent oil leakage from the end of a rotating shaft, or dust
Piston Seals: SPG SPGW SPGO KDAS ODI OSIOil seals are used for automobile engines and geared motors, and are designed mainly to prevent oil leakage from the end of a rotating shaft, or dust
Dust Wiper Seals: DHS LBH J/JA DKB DKBI DSIOil seals are used for automobile engines and geared motors, and are designed mainly to prevent oil leakage from the end of a rotating shaft, or dust
Guide Ring / Buffer Seal / Base Seal: WR Guide Tape HBY PTFE Back Up
Hydraulic Buffer Rod Seal GSJ HBTS Step SealOil seals serve to prevent the leakage not only of lubricants, but also water, chemicals, and gas from "gaps" in machinery. Oil seals also serve to prevent the intrusion of dust, soil and sand from the outside air.
Liuzhou Pinmo Sealing Sci-Tech Co., Ltd. is a scientific and technological production enterprise integrating R&D, production and sales. Our production plant covers an area of about 2,000 square meters and has 150 employees.
QMS (Quality Management System):
ISO9001, ISO/TS16949
Our Products:
O Ring, Oil Seal, Hydraulic & Pneumatic Seal, Custom Molded Rubber Parts
Production Standard:
ASTMD2000
Product Application Scope:
Engineering machinery, hydraulic pneumatic, petroleum and natural gas, automobile seals, valves and pipelines, electronic home appliances, food grade, electric power, chemical industry, coal mine, metallurgy, engineering shield machine and other industries, supporting domestic automobile and machinery manufacturers.
We had sell to:
More than 40 countries including the United States, Germany, Japan, Britain, Italy, Spain, Russia, Canada, Australia, Malaysia, Philippines, Indonesia, Mexico, Brazil, Peru, Chile, Argentina, Israel, Saudi Arabia, Lebanon, Ukraine, Pakistan, Thailand, Vietnam, etc.
Hydraulic Buffer Rod Seal GSJ HBTS Step Seal
Ship by express, by air, by sea at buyer's option. rubber oil seal tc oil seal rubber seal manufacturer oil seal tc nbr oil seal tc oil seal fkm oil seal china manufacturer oil seal tc oil seal nbr tc oil seal fkm tc oil seal manufacturer
Q 1. What's the payment term?
A: We accept T/T 50% deposit and 50% balance against copy of B/L or L/C at sight, West Union,VISA,Paypal is also accepted. rubber oil seal tc oil seal rubber seal manufacturer oil seal tc nbr oil seal tc oil seal fkm oil seal china manufacturer oil seal tc oil seal nbr tc oil seal fkm tc oil seal manufacturer
Q 2. What is the normal lead time for product orders?
A: Generally it is 1-2 days if the goods are in stock. or it is 5-10 days if the goods are not in stock, it is according to quantity.tc oil seal tc oil seal nbr tc oil seal nbr rubber oil seal fkm oil seal fkm rubber oil seal manufacture china oil seal
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Q 3. What is your standard packing?
A: All the goods will be packed by carton box and loaded with pallets. Special packing method can be accepted when needed.rubber oil seal tc oil seal rubber seal manufacturer oil seal tc nbr oil seal tc oil seal fkm oil seal china manufacturer oil seal tc oil seal nbr tc oil seal fkm tc oil seal manufacturer
Q 4. Could you please tell us the month capacity of your products ?
A: It depends on which model, we produce more than 2500 tons rubber materials per month.
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Q 5. what kind of certificates you have ?
A1: We have been ISO9001:2008 and ISO14001:2004 certified by SGS since 2015.
A2: We have various rubber compounds approved by ROHS and REACH.
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Q6: How to check the quality of the bulk order?
A1: We provide preproduction samples before mass production for all customers if needed.
A2: We accept third party inspection such as TUV, INTERTEK, BV, etc.
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Q 7: Do you use any international standards for the rubber products?
A: Yes, we mainly use ASTM D2000 standard to define the quality of the rubber materials, tolerances as per ISO3302, ISO2768, etc.rubber oil seal tc oil seal rubber seal manufacturer oil seal tc nbr oil seal tc oil seal fkm oil seal china manufacturer oil seal tc oil seal nbr tc oil seal fkm tc oil seal manufacturer
Q8: What materials are available to produce from your side?
A: NBR, EPDM, SILICONE, FPM(FKM), NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc. tc oi
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Q9: Do you provide maintenance on tooling?
A: We maintain all tooling and will replace as needed.tc oil seal tc oil seal nbr tc oil seal nbr rubber oil seal fkm oil seal fkm rubber oil seal manufacture china oil seal manufacture
Q10: How many empolyees you have?
A:We have 150 empolyees at time of December 2020. tc oil seal tc oil seal nbr tc oil seal nbr rubber oil seal fkm oil seal fkm rubber oil seal manufacture china oil seal manufacture
If you have any other question, please don't hesitate to contact us:
Hydraulic Buffer Rod Seal GSJ HBTS Step Seal
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