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 heavy-duty accumulator diaphragm and piston cup seal is specially developed for Atlas Copco HB3000 large hydraulic rock breaker, the core heavy-duty model of HB series excavator-mounted hydraulic hammers widely applied in quarry mining, large concrete demolition, tunnel excavation and mine rock breaking projects. The complete set includes energy storage accumulator diaphragm and hydraulic impact piston cup seal, fully meeting full overhaul and daily maintenance requirements of HB3000 breaker.
Adopting fabric-reinforced high tensile NBR nitrile rubber and high wear-resistant TPU polyurethane as core raw materials, this diaphragm & cup seal delivers superior nitrogen penetration resistance, high-frequency impact resistance, tear resistance and long-term anti-aging performance, serving as a reliable direct replacement for original Atlas Copco OEM sealing spare parts. It fundamentally solves common failures including accumulator nitrogen leakage, cylinder internal oil leakage, hydraulic pressure loss and unstable striking power, greatly extending the service life of HB3000 hammer under long-hour heavy-load impact, severe vibration and high-dust harsh mining & construction working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Atlas Copco HB3000 Hydraulic Breaker Diaphragm & Cup Seal |
Applicable Model |
HB3000 Heavy Hydraulic Rock Breaker |
Compatible HB Series |
HB2000, HB2200, HB2500, HB3000, HB3100 large hydraulic hammers |
Main Material |
Fabric Reinforced NBR Diaphragm + High Hardness Wear-resistant TPU Cup Seal |
Max Working Pressure |
18MPa (180bar), Instant Peak Pressure 22MPa (220bar) |
Working Temperature |
-40℃ ~ 120℃ |
Product Composition |
Accumulator energy storage diaphragm, hydraulic reciprocating piston cup seal |
Cross Reference OEM No. |
(To be filled with actual OEM part numbers) |
Net Weight |
Approximately 0.52kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system, impact cylinder reciprocating sealing system |
Matching Excavator |
32–50 ton heavy-duty excavators |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Key Selling Points
1. 100% OEM Dimension Matching, Direct Installation Without Modification
Fully matched with original Atlas Copco HB3000 breaker in outline size, installation radian and assembly size, consistent with factory standard part dimensions. No cutting, grinding or secondary modification required. Suitable for daily maintenance, site full machine overhaul and emergency field repair, effectively shorten equipment downtime and reduce labor maintenance costs.
2. Premium Composite Sealing Materials, Stable Sealing Under All Working Conditions
The accumulator diaphragm adopts multi-layer fabric reinforced NBR, with ultra-high tear strength and elastic recovery rate, resisting tens of thousands of high-strength cyclic impacts without cracking or deformation; the piston cup seal uses imported high-hardness TPU material, outstanding anti-extrusion, anti-wear and anti-fatigue performance. The materials resist nitrogen aging, hydraulic oil corrosion and permanent deformation, maintaining stable elastic sealing performance continuously from -40℃ alpine open pit mining to 120℃ high-temperature underground tunnel construction environments.
3. High Pressure & Heavy Impact Resistance, Eliminate Air & Oil Leakage
All sealing components pass strict 18MPa long-cycle high-pressure impact simulation aging tests. The integrated curved bowl structure fits the inner cavity of the accumulator and piston perfectly, completely blocking nitrogen leakage of energy storage chamber and internal oil leakage of impact cylinder, stabilizing hydraulic system pressure, and guaranteeing constant striking energy output of HB3000 hammer under heavy rock breaking, continuous high-frequency impact and strong vibration working scenes.
4. Special Customized Structure for HB3000, Easy Maintenance & Inventory Management
Independently molded targeting the accumulator and piston sealing positions of HB3000 large breaker, the thickened diaphragm structure adapts to the heavy impact load characteristics of 3000kg heavy hammer. Single independent vacuum packaging unifies spare parts classification, simplifies warehouse inventory management, shortens overall repair cycle and cuts daily equipment operation and maintenance expenses.
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 factory technical standards, providing long-term stable operation guarantee for large mining and engineering hydraulic breaking equipment.
6. Wide Application Scenarios for Heavy-Duty Projects
Customized for Atlas Copco HB3000 heavy hydraulic breaker, widely used in all kinds of large-scale heavy construction and mining projects:
• Quarry & Mining Industry: Open pit stone mining, underground mine rock splitting, large boulder secondary crushing
• Large Municipal Demolition: Reinforced concrete factory dismantling, bridge pier breaking, large foundation excavation
• Tunnel & Road Engineering: Mountain hard rock tunneling, highway roadbed rock excavation, slope rock stabilization
• Water Conservancy Projects: Hydropower station dam foundation trimming, underground diversion tunnel rock breaking
• Non-blasting Mining & Emergency Rescue: Mine rock excavation, landslide rock clearing, frozen soil crushing
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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