Professional grade hydraulic cylinder barrel seals manufacturing expert
Why are hydraulic cylinder barrel seals a core component of a hydraulic system?
In the field of construction machinery, heavy equipment, and automation equipment, hydraulic cylinder barrel seals undertake the three core missions of preventing fluid leakage, maintaining system pressure, and reducing friction loss. Our precision rubber seals are designed with innovative construction:
✅ Multi-lip sealing technology: two-way pressure sealing (0.1-50MPa)
✅ Dynamic compensation structure: automatically compensates for the slight deformation of the piston rod/cylinder barrel
✅ Intelligent oil guide groove design: ensure the continuous existence of the lubricating film and reduce friction loss by 80%.
| Material | Pressure rating | Temperature range | Fits the bore |
| PU polyurethane |
45MPa |
-30~110°C |
50-200mm |
| fluoro rubber |
60MPa |
-40~200°C |
80-500mm |
| Hydrogenated nitrile |
80MPa |
-50~150°C |
300-800mm |
Core product advantages
Adaptability to extreme working conditions
The pressure range covers 0-80MPa, and the working conditions of -40°C to 200°C are stable
The oil resistance of specially formulated nitrile butadiene rubber (NBR) is increased by 60%, and the chemical corrosion resistance of fluoroelastomer (FKM) meets ASTM D2000 standard
Innovative design of structure
Triple composite sealing system: Step Seal, Glyd Ring, Wear Band combination, leakage rate < 0.01ml/min
The patented chamfer design reduces the coefficient of friction to 0.08 and extends the service life of the hydraulic cylinder by 2-3 times
Industry application cases
Construction machinery field
Excavator boom cylinder seals for Caterpillar/Komatsu have passed a 500-hour continuous impact test
New energy equipment
The special seal group for the wind power pitch hydraulic system is resistant to low temperatures -50°C and can be maintained for 10 years
Food and medicine equipment
FDA-compliant white silicone seals with zero metal precipitation have been supplied to Tetra Pak packaging lines
Six technical advantages have won the trust of customers around the world
Precision molding process: the dimensional tolerance is controlled within ±0.01mm
Testing equipment imported from Germany: 100% passed the 72-hour pressure cycle test
Customized development capability: support non-standard size/special section rapid proofing (7 days delivery)
Ultra-long service life: The working cycle of dynamic seals is more than 5 million times
Environmental certification: RoHS/REACH environmental protection directive
Global logistics network: DDP trade terms support to ensure on-time delivery
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