High Pressure Hydraulic U-Cup Seal Piston Hpu Rubber Oil Seal Upi

• Customization: Available
• Material: PU
• Application: Cylinder
• Model NO.: CP01-P
• Type: Stationary Seal
• Performance: Wear
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Usage: Hydraulic Cylinder
• Speed: 0.5m/S
• Temperature: -20 °c ~ 110 °c
• Pressure: 40MPa
• Hardness: Sha 95
• Motion: Reciprocating
• Operating Type: Single-Acting
• Other Material: NBR/FKM
• Feature: Wear-Resistance
• Transport Package: Carton
• Specification: 15*15*5cm
• Trademark: KELUOKE
• Origin: China
• Package Size: 15.00cm * 15.00cm * 5.00cm
• Package Gross Weight: 0.500kg

Product Description

Specification

Product Features

1.Simple groove structure

2.Exceptionally wear-resistant

3.Long service life, provides effective sealing even on poorly matched surfaces

4.Robust design with excellent crush resistance

5.Wide operating temperature range
6.Low friction under no-pressure conditions

Temperature range: -20°C to 110°C

Speed: 0.5 m/s

Pressure: 40 MPa

Material: HPU

Hardness:Shore A 95

Density:1.2g/cm³

Drawings & Dimensions

We offer a variety of other product models and also support customization. Please feel free to contact us for any requirements.

Material	Color	Hardness	Temperature	Speed
PU	RedGreen	Shore A 95	-30~110℃	0.5m/s
HPU	Red	Shore A 95	-20~110℃	0.5m/s
SPU	Grey-black	Shore A 95	-20~110℃	0.7m/s
TPU	Blue	Shore A 95	-50~110℃	0.5m/s
GPU	Red	Shore A 95	- 30~110℃	0.5m/s

Dust Seal

Piston Seal

Piston Rod Seal

Block Contaminants: Prevent dust, mud, moisture, etc., from entering the equipment interior, protecting precision components from wear or corrosion.

Extend Service Life: Reduce equipment failures caused by contamination and lower maintenance costs.

Auxiliary Lubrication: Some dust seal designs can retain lubricants  to prevent leakage.

Piston seals are critical components in hydraulic/pneumatic systems, designed to prevent fluid (oil or gas) leakage through the clearance between the piston and cylinder barrel while withstanding high pressure, dynamic friction, and temperature variations.

Prevent internal fluid from leaking along the piston rod while blocking external contaminants from entering the system. Its performance directly impacts equipment efficiency, service life, and environmental contamination risks.

Piston Seal Applications

Press Machines

Lifting Platforms

Aftermarket Solutions

Construction Machinery:

Excavator hydraulic cylinders
Crane lifting rams

Automotive Systems:

Brake master cylinders
Shock absorber pistons

Industrial Automation:

Pneumatic actuators
Injection molding machine injection unit cylinders

Aerospace Applications:

Landing gear actuators
Fuel control valves

Company Profile

Precision turning processes

long-term stable raw material supplier

Our company specializes in producing sealing rings through precision turning processes. With optimized manufacturing procedures and extensive production experience, we guarantee consistently high-quality sealing rings.

Precision Turning Expertise – Specialized in lathe-machined seals with ±0.01mm dimensional tolerance
Vertical Production Control – Full-process manufacturing from raw material to finished product
Proven Quality System – ISO 9001-certified production with 100% pressure testing
Engineering Support – 15+ years OEM experience for custom sealing solutions

We have long-term stable raw material suppliers, ensuring consistent product quality, and can provide various products according to your requirements.

Stable Supply Chain: Long-term partnerships with certified material suppliers
Consistent Quality: Strict quality control ensures reliable product performance
Customized Solutions: Flexible production capacity to meet diverse specifications

Reduce costs: Reduce production costs under the premise of ensuring quality.
 
 
 

Our

greatest

advantage

Please

choice

us
 

Certifications

Reliable quality assurance

Qingdao keluoke Sealing Technology Co., Ltd.

Qingdao KROCO Sealing Technology Co., Ltd. was established on November 10, 2015. The company specializes in sealing technology R&D and the sales of sealing components, with a product lineup including:Rubber sealing rings.Mechanical seals and Sealing gaskets
  Key Features:Oil resistance & corrosion resistance,Operating temperature range: -60°C to +200°C
  Business Scope:Mechanical design services,Wholesale & retail of sealing components,Import & export trade

Packing & Delivery

Shipping Methods	Air Freight Adjustable to customer requirements
Packing Methods	Carton Adjustable to customer requirements

FAQ

Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.
Q: Can I request a customized size?
A: Absolutely! We offer tailored attachments.We offer a comprehensive selection of products in various models and materials. For detailed specifications or tailored recommendations, please contact our technical team 
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email for a quote.