33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
Product Overview
This high-performance accumulator diaphragm and piston cup seal is professionally customized for Atlas Copco SBC650 hydraulic breaker (hydraulic rock hammer), a mainstream medium-duty hydraulic impact equipment of the SBC series, widely matched to 4–9 ton excavators for construction demolition, rock crushing and mining operations. The product set includes energy storage diaphragm for nitrogen accumulator and hydraulic reciprocating piston cup seal, fully supporting full overhaul and routine maintenance of SBC650 breakers.
Adopting fabric-reinforced NBR nitrile rubber and high-wear PU polyurethane as core raw materials, this diaphragm & cup seal features outstanding nitrogen penetration resistance, high-frequency impact resistance, abrasion resistance and anti-fatigue aging performance, serving as a perfect direct replacement for original Atlas Copco OEM sealing spare parts. It effectively solves typical failures such as accumulator nitrogen leakage, cylinder internal oil leakage, hydraulic pressure attenuation and unstable striking force, greatly extending the service life of SBC650 hydraulic hammers under long-term continuous impact, severe vibration and dusty harsh construction working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Atlas Copco SBC650 Hydraulic Breaker Diaphragm & Cup Seal |
Applicable Model |
SBC650 Medium Hydraulic Breaker / Hydraulic Hammer |
Compatible SBC Series |
SBC410, SBC610, SBC650, SBC800 hydraulic impact breakers |
Main Material |
Fabric Reinforced NBR Diaphragm + High Wear-Resistant PU Cup Seal |
Max Working Pressure |
15MPa (150bar), Peak Instant Pressure: 20MPa (200bar) |
Working Temperature |
-40°C ~ 120°C |
Product Composition |
Accumulator energy storage diaphragm, reciprocating piston hydraulic cup seal |
Cross Reference OEM No. |
(To be filled with actual OEM part numbers) |
Net Weight |
Approximately 0.28kg |
Applicable System |
Hydraulic breaker nitrogen accumulator system, main cylinder reciprocating sealing system |
Applicable Carrier |
4–9 ton mini & medium excavators |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Key Selling Points
1. 100% OEM Standard Dimension, Direct Installation Without Modification
Fully matched with the original Atlas Copco SBC650 breaker, consistent with factory standard size, cavity radian and installation outline. No cutting, grinding or secondary modification required. Suitable for daily maintenance, field site overhaul and emergency breakdown repair, drastically cutting equipment downtime and manual maintenance costs.
2. Premium Composite Sealing Material, Stable Sealing In All Temperature Scenarios
The energy storage diaphragm uses fabric-clamped NBR base material with ultra-high tear resistance and elastic recovery; it can withstand tens of thousands of 960 times/min impact cycles without cracking. The piston cup seal adopts high-hardness anti-extrusion PU material, excellent against hydraulic oil corrosion, nitrogen aging and permanent deformation. It maintains stable elastic sealing performance from -40°C alpine construction to 120°C high-temperature underground mining environment.
3. High Pressure & Anti-Vibration Performance, Eliminate Leakage & Pressure Loss
All sealing components pass strict 15MPa high-pressure air tightness and long-cycle impact simulation tests. The bowl-shaped curved surface fits the inner cavity tightly, completely avoiding nitrogen leakage of accumulator and internal cylinder oil seepage, stabilizing the hydraulic striking pressure, and ensuring constant impact energy of SBC650 hammer under heavy rock breaking, continuous striking and strong vibration working conditions.
4. Special Custom Mold For SBC650, Convenient Spare Parts Management
Independently molded targeting the accumulator and piston sealing positions of SBC650 breaker, the curved bowl structure fits the equipment cavity perfectly. Single independent packaging simplifies spare parts inventory classification, shortens the overall maintenance cycle, and reduces daily operation and maintenance costs of excavator attachments.
5. Multi-Round Strict Factory Inspection, Quality Equivalent To Original Parts
Every set of diaphragm and cup seal undergoes air tightness leakage test, high-pressure durability test and cyclic impact aging test before delivery. All performance indicators meet Atlas Copco original technical standards, providing long-term stable operation guarantee for engineering and mining hydraulic breaking equipment.
6. Wide Application Range For Construction & Mining
Specially developed for Atlas Copco SBC650 hydraulic breaker, widely applied in multiple heavy-duty construction and mining industries:
• Municipal Demolition: Concrete road breaking, old building dismantling, pipeline foundation excavation
• Road Engineering: Mountain rock excavation, subgrade hard rock crushing, slope trimming
• Quarry & Mining: Stone quarry fragmentation, small mine rock splitting, tunnel auxiliary crushing
• Municipal Emergency Works: Frozen soil breaking, road collapse rock cleaning, foundation pit rock excavation
• Small Medium Excavator Supporting: 4–9 ton excavator matching construction operations
Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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