Double O-ring COP/APA Thin SC Cylinder Piston Seal Pneumatic Bidirectional Figure-eight Buffer C-ring Air Seal
Price:
Negotiable
MOQ:
10pieces
Delivery Time:
3-4 working days after payment
Brand:
NFK
Product Description
Double O-ring COP/APA Thin SC Cylinder Piston Seal Pneumatic Bidirectional Figure-eight Buffer C-ring Air Seal
This pneumatic bidirectional figure-eight buffer C-ring air seal is designed for hydraulic cylinder applications. The COP-type seal features a double O-ring configuration with excellent performance characteristics.
Product Specifications
| Product Name | Pneumatic Seal |
| Type | COP |
| Size | 100*85*5.6 |
| Brand | NFK |
| Color | Black |
| Material | NBR |
| Place of Origin | China |
| Standard | Standard |
| Temperature Range | -25℃ to +100℃ |
| Pressure Rating | 35 MPa |
| OEM/ODM | OEM Accepted |
| Application | Hydraulic Cylinder |
| Service | Custom Special Sizes (NFK Brand) |
| Minimum Order Quantity | 5-50 pcs (depending on packaging), except for samples (1 pc) |
Product Images

Recommended Hydraulic Seal Types
Rod Seals
| Type | Material |
|---|---|
| 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
| Type | Material |
|---|---|
| SPG | NBR + PTFE |
| SPGW | NBR + PTFE |
| SPGO | NBR + PTFE |
| KDAS | NBR + PU + POM |
| ODI | PU |
| OSI | PU |
| ODU | PU |
Dust Wiper Seals
| Type | Material |
|---|---|
| DH/DHS | PU |
| LBH | NBR & FKM |
| J/JA | PU |
| DKB | NBR & FKM + Metal |
| DKBI | PU + Metal |
| DSI | PU |
Additional Components
| Component | Type | Material |
|---|---|---|
| Wear Ring | WR | Phenolic Fabric |
| Guide Tape | - | PTFE |
| Guide Tape | - | Phenolic Fabric |
| Buffer Seal | HBY | PU + Nylon |
| Back-up Ring | O-Ring | NBR & FKM |
| Back-up Ring | X-Ring | NBR & FKM |
| Back-up Ring | PTFE Washer | PTFE |
About Guangzhou Upseal Technology Co., Ltd.
Guangzhou Upseal Technology Co., Ltd. originated from the original Guangzhou Huaxing Oil Seal Company. With over 20 years of experience in the machinery industry market, we specialize in international well-known brands of original imported oil seals and construction machinery repair kits. Our comprehensive services include product sales, brand representation, technical support, and after-sales service.
We serve various industries including construction machinery, metallurgy, shipping, air compression, automotive, hydraulic cylinder manufacturing, marine machinery, mining equipment, and electrical machinery. Our company operates with the principle of "superior products, reputation first" and maintains a strong product database with inventory of 50 million items.

Frequently Asked Questions
Q1: What is your delivery time?
A: Inventory: generally 1-3 days. Out of stock: 3-7 days after sample confirmation. Order: 10-30 days after payment, confirming delivery time based on quantity.
Q2: Can you provide samples? Is it free or extra?
A: Yes, we can provide samples, but we require payment for the cost and shipping.
Q3: How is your factory doing in terms of quality control?
A: Quality comes first. We maintain strict quality control from start to finish with skilled workers who pay attention to every detail in production and packaging.
Q4: How to guarantee your after-sales service?
A: We re-check products before shipping to ensure packaging integrity and actively track customer feedback.
Q5: Do you accept OEM or ODM orders?
A: Yes, we accept both OEM and ODM orders for our customers.
Q6: What are your delivery terms?
A: We accept EXW, FOB, CIF, and other terms for your convenience.
Q7: Are your product pictures real?
A: All product pictures and videos show actual products. Colors and quality are accurately represented.
Q8: What are your payment methods?
A: We accept TT, Cash, Bank Transfer, PayPal, HSBC, City Bank, and ANZ Bank.
Q9: To which places have you exported?
A: We export to North America, Europe, Middle East, Africa, Southeast Asia, and other regions.

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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
GUANGZHOU UP OIL-SEALS TRADING CO.,LTD
Location
NO.11 BUILDING JING'AN GARDEN HULIN ROAD TIANHE DISTRICT GUANGZHOU CHINA
Contact Person
FION LIU