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 specially developed for Atlas Copco MB1200 medium-large hydraulic breaker, a core heavy-duty breaking equipment of MB series widely matched with 15–26 ton excavators for mining, municipal demolition and rock excavation construction. The complete set includes nitrogen accumulator energy storage diaphragm and hydraulic impact piston cup seal, fully supporting full overhaul and daily maintenance of MB1200 hydraulic hammer.
Adopting fabric-reinforced NBR nitrile rubber and high-wear-resistance PU polyurethane as core raw materials, the product features outstanding nitrogen penetration resistance, high-frequency impact resistance, abrasion resistance and anti-fatigue aging performance, serving as a fully interchangeable aftermarket replacement for original Atlas Copco sealing spare parts. It thoroughly solves common failures such as accumulator nitrogen leakage, cylinder internal oil leakage and hydraulic impact pressure drop, greatly extending the service life of MB1200 breaker under long-time heavy load, intense vibration and dusty severe working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Atlas Copco MB1200 Hydraulic Breaker Diaphragm & Cup Seal |
Applicable Model |
MB1200 Hydraulic Rock Breaker / Excavator Hammer |
Compatible MB Series |
MB750, MB1000, MB1200, MB1500, MB1650 hydraulic impact hammers |
Main Material |
Fabric Reinforced NBR Diaphragm + High Hardness PU Cup Seal |
Max Working Pressure |
18MPa (180bar), Peak Instant Pressure: 22MPa (220bar) |
Working Temperature |
-40℃ ~ 120℃ |
Product Composition |
Accumulator nitrogen storage diaphragm, reciprocating piston cup seal |
Cross Reference OEM No. |
3115182201 |
Net Weight |
Approximately 0.45kg |
Applicable System |
Hydraulic breaker nitrogen accumulator system, impact cylinder reciprocating sealing system |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Matched Excavator Tonnage |
15–26 ton excavator carrier |
Key Selling Points
1. 100% OEM Dimension Matching, Direct Installation Without Modification
Fully consistent with original Atlas Copco MB1200 spare parts in outline size, installation radian and assembly position, perfectly matching OEM part number 3115182201. No cutting, grinding or secondary modification required, supporting quick assembly for daily maintenance, field overhaul and emergency site repair, effectively reducing equipment downtime and manual maintenance cost.
2. Composite High-Grade Sealing Material, Stable Sealing in Full Temperature Range
The energy storage diaphragm uses thickened fabric-reinforced nitrile rubber, with strong tear resistance and elastic recovery, resisting cracking after hundreds of thousands of cyclic high-frequency impacts; the piston cup seal adopts imported high-hardness PU material with excellent anti-extrusion and wear resistance. The material resists nitrogen aging, hydraulic oil corrosion and permanent deformation, maintaining stable elastic sealing performance from -40℃ alpine mining to 120℃ high-temperature underground construction scenarios.
3. High Pressure & Anti-Vibration Performance, Eliminate Pressure Loss & Leakage
All sealing components pass strict 18MPa high-pressure durability and long-cycle impact simulation tests. The bowl-shaped curved structure fits the inner cavity of accumulator and piston tightly, completely blocking nitrogen leakage of energy storage chamber and internal oil leakage of impact cylinder, stabilizing hydraulic output pressure, and guaranteeing constant striking force of MB1200 hammer under heavy rock breaking, continuous impact and strong vibration working conditions.
4. Special Customized Structure for MB1200, Convenient Spare Parts Management
Independently mold-developed for MB1200 accumulator and piston sealing position, with optimized radian and thickness according to the original equipment cavity structure. Single independent packaging simplifies spare parts classification and inventory management, shortens overall repair cycle, and lowers daily operation and maintenance cost of excavator supporting equipment.
5. Strict Multi-Process Factory Inspection, Quality Reaches Original Standard
Every set of diaphragm and cup seal undergoes air tightness leak test, high-pressure endurance test and cyclic impact aging test before delivery. All performance indicators comply with Atlas Copco factory technical standards, providing long-term stable operation guarantee for engineering and mining hydraulic breaking equipment.
6. Wide Application Scenarios
Specially matched for Atlas Copco MB1200 hydraulic breaker, widely applied to multiple heavy-duty construction and mining industries:
• Mining industry: Underground roadway tunneling, hard rock quarrying, ore secondary crushing
• Municipal demolition: Concrete pavement breaking, old building dismantling, pipeline foundation excavation
• Road & bridge engineering: Mountain rock excavation, tunnel blasting auxiliary breaking, roadbed hard rock crushing
• Water conservancy project: Hydropower tunnel rock trimming, dam foundation leveling
• Emergency rescue engineering: Frozen soil breaking, slope rock splitting, landslide debris clearing
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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