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{"title":"SB131 Hydraulic Hammer Oil Seal Kit Excavator Hydraulic Breaker Accessories","imgUrl":"https:\/\/img.chinax.com\/nimg\/df\/46\/16b23f14110ab1d7c1ccbad12524-200x200-1\/sb131_hydraulic_hammer_oil_seal_kit_excavator_hydraulic_breaker_accessories.jpg","attrs":{"Materials":"PU+TPFE+FKM+NBR","Application":"Used for maintaining hydraulic breakers to prevent leaks and ensure optimal performance","Durability":"Wear-resistant and long-lasting","Brand Name":"MSGB"}}
{"title":"SB121 Hydraulic Breaker Seal Kit Heavy Duty Corrosion Resistant","imgUrl":"https:\/\/img.chinax.com\/nimg\/5d\/66\/9ace65126ca7601ec994f06c3337-200x200-1\/sb121_hydraulic_breaker_seal_kit_heavy_duty_corrosion_resistant.jpg","attrs":{"Minimum Order Quantity":"10","Preservation Notice":"Closed,Dry and Avoid The Sun","Place of Origin":"China","Delivery Time":"1-7 days"}}
{"title":"Rubber SB81 Hydraulic Rock Breaker Seal Kit Wear Resistant Leak Proof","imgUrl":"https:\/\/img.chinax.com\/nimg\/c8\/44\/7b08f29a82e40b91c1de6939262a-200x200-1\/rubber_sb81_hydraulic_rock_breaker_seal_kit_wear_resistant_leak_proof.jpg","attrs":{"Delivery Time":"1-7 days","Temperaturerange":"-40\u00b0C to 120\u00b0C","Model Number":"PC300-7","Shipping":"Sea Freight\/Air Freight"}}
OEM grade modified HNBR SB131 hydraulic breaker rubber cup seal for Soosan SB131 hammer, oil-proof high temp resistant accumulator cup diaphragm, factory wholesale with.
Working Principle
Return stroke: High-pressure hydraulic oil enters accumulator oil cavity, inwardly squeeze rubber cup, inner nitrogen is compressed, hydraulic energy converts into nitrogen compression potential energy and stored inside nitrogen chamber.
Piston moves to top dead center for oil circuit reversal, high-pressure hydraulic oil switches into piston upper chamber.
Power striking stroke: Compressed nitrogen expands instantly to push rubber cup reverse extrusion, stored hydraulic oil flows back into hydraulic loop to supplement instantaneous high flow, drive piston downward fast to hammer chisel.
After single blow finished, hydraulic oil squeezes rubber cup again to compress nitrogen, circulate energy storage & release repeatedly.
Bowl-type rubber cup always isolates nitrogen gas and hydraulic oil completely to avoid gas-liquid mixing and system pressure drop.
Complete Production Flow
Modified HNBR raw rubber physical & chemical performance detection
Multi-stage closed rubber mixing & functional auxiliary even dispersion
Post-vulcanization curing standing for internal stress relief
Full appearance sorting to eliminate pinhole, crack & defective products
Random inflation air tightness + cyclic expansion fatigue testing
Surface cleaning → individual PE vacuum seal → export carton packing
FAQ
Q1: What’s the raw material of SB131 rubber cup?
A1: Premium modified HNBR hydrogenated nitrile rubber with anti-oil & high temp resistant formula.
Q2: What causes rubber cup nitrogen leakage in usage?
A2: Over-high pre-charged nitrogen pressure, long-time high temp aging or inferior raw material leading to inner crack & pinhole.
Q3: Can I order sample before bulk wholesale?
A3: Single sample is available, large quantity order gets tiered discount & priority delivery.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
20000000-25000000
Employee Number:
90~100
Ecer Certification:
Verified Supplier
Guangzhou Liantuo Machinery Trading Company is a professional cross-border supplier specializing in full-series excavator and construction machinery spare parts. We cover a complete product range, including hydraulic parts, undercarriage components, engine core parts, electrical control parts, sle...
Guangzhou Liantuo Machinery Trading Company is a professional cross-border supplier specializing in full-series excavator and construction machinery spare parts. We cover a complete product range, including hydraulic parts, undercarriage components, engine core parts, electrical control parts, sle...