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 professionally customized for Atlas Copco HB5800 large hydraulic rock breaker, the flagship heavy impact equipment of HB series hydraulic hammers widely matched with 58–100 ton ultra-large excavators for open-pit mining and massive rock demolition. The assembly includes nitrogen accumulator energy storage diaphragm and high-pressure hydraulic piston cup seal, fully supporting full overhaul and routine maintenance of HB5800 hydraulic breaker.
Adopting thickened fabric-reinforced HNBR hydrogenated nitrile rubber and high-strength wear-resistant TPU polyurethane as core raw materials, this diaphragm & cup seal delivers superior nitrogen penetration resistance, ultra-high pressure resistance, extreme anti-fatigue impact and anti-aging performance, serving as a direct interchangeable replacement for original Atlas Copco OEM sealing spare parts. It fundamentally solves typical failures including accumulator nitrogen leakage, main cylinder internal oil leakage, system impact pressure drop and unstable striking force, greatly extending the service life of HB5800 hammer under long-duration heavy-load, ultra-high frequency impact, severe vibration and high-dust harsh mining working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Atlas Copco HB5800 Hydraulic Breaker Diaphragm & Cup Seal |
Applicable Model |
HB5800 Heavy Hydraulic Rock Breaker / Hammer |
Compatible HB Series |
HB3100, HB4700, HB5800, HB7000 large hydraulic breakers |
Main Material |
Thickened Fabric Reinforced HNBR Diaphragm + High Toughness TPU Cup Seal |
Max Working Hydraulic Pressure |
18MPa (180bar), Instant Peak Pressure: 22MPa (220bar) |
Working Temperature |
-40°C ~ 130°C |
Product Composition |
Accumulator energy storage diaphragm, high-pressure reciprocating piston cup seal |
Cross Reference OEM No. |
3362261647 |
Net Weight |
Approximately 1.1kg |
Applicable System |
Large breaker nitrogen accumulator energy storage system, main cylinder high-pressure reciprocating sealing system |
Supporting Excavator Tonnage |
58–100 ton large excavators |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Key Selling Points
1. 100% OEM Standard Size, Direct Installation Without Modification
Fully matched with original Atlas Copco HB5800 breaker cavity dimension and OEM part number standard, no cutting, grinding or secondary modification required. Suitable for daily maintenance, mine field overhaul and emergency on-site repair, effectively shortening equipment downtime and cutting labor maintenance cost.
2. Thickened High-End Composite Material, Stable Sealing Under Extreme Working Conditions
The accumulator diaphragm adopts multi-layer fabric-reinforced HNBR material, featuring ultra-high tear resistance and elastic recovery, resisting tens of thousands of heavy cyclic impact without cracking; piston cup seal uses high-hardness anti-extrusion TPU, outstanding wear and hydraulic oil corrosion resistance. The material maintains stable elastic sealing performance continuously within -40°C alpine mining to 130°C high-temperature slag cleaning environment, perfectly adapting to all extreme construction scenarios of HB5800 heavy hammer.
3. Ultra-High Pressure & Heavy Impact Resistance, Eliminate Air & Oil Leakage Completely
All sealing components pass strict 18MPa long-cycle high-pressure impact simulation test. The integrated curved bowl structure fits the inner cavity tightly, thoroughly solving nitrogen leakage of accumulator and internal oil leakage of main cylinder, stabilizing hydraulic impact pressure output, ensuring consistent powerful striking force of HB5800 hammer under heavy rock breaking, continuous high-frequency impact and strong vibration mining conditions.
4. Special Customized Structure for Large Heavy Hammer, Easy Inventory & Maintenance
Independently developed and molded aiming at HB5800 large accumulator and piston sealing position, thickened structural design for heavy-load impact; single independent sealed packaging, convenient spare parts classification management, effectively shorten overall repair cycle and reduce long-term operation and maintenance cost of large mining equipment.
5. Multi-Round Strict Factory Inspection, Performance Reaches OEM Standard
Each set of diaphragm and cup seal undergoes air tightness leakage test, high-pressure durability test and long-cycle impact aging test before delivery. All technical indicators comply with original factory standards, providing long-term stable operation guarantee for large mine hydraulic breaking equipment.
6. Wide Application Scope for Heavy-Duty Large-Scale Engineering
Specially developed for Atlas Copco HB5800 heavy hydraulic breaker, widely applied in various ultra-large heavy engineering and mining projects:
• Open-pit Mining: Large-scale ore primary crushing, hard rock stripping, quarry bulk rock blasting auxiliary breaking
• Large Infrastructure Construction: Mountain tunnel excavation, hydropower dam foundation rock trimming, highway mountain road hard rock excavation
• Large Demolition Project: Super large reinforced concrete structure dismantling, factory thick foundation breaking
• Metallurgical High-Temperature Operation: Steel slag tank cleaning, furnace attachment crushing
• Water Conservancy & Underwater Engineering: River channel rock dredging, underwater hard rock excavation
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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