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 diaphragm and cup seal is professionally engineered for Atlas Copco CP4250 heavy-duty hydraulic rock drill, a core heavy impact model of CP series hydraulic breaking equipment widely deployed in open-pit mining, tunnel excavation and large-scale rock demolition hydraulic systems. The product includes accumulator energy storage diaphragm and hydraulic piston cup seal, fully supporting full overhaul and routine maintenance of CP4250 rock drill.
Adopting fabric-reinforced NBR nitrile rubber and high wear-resistant PU polyurethane as core materials, this diaphragm & cup seal delivers outstanding nitrogen resistance, extreme high-frequency impact resistance, wear resistance and anti-aging performance. It serves as a reliable direct replacement for original Atlas Copco sealing spare parts. The product effectively resolves common malfunctions including accumulator nitrogen leakage, cylinder internal oil leakage and system pressure attenuation, and significantly extends the service life of CP4250 drill under long-duration heavy-load impact, severe vibration and dusty harsh mining working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Atlas Copco CP4250 Hydraulic Rock Drill Diaphragm & Cup Seal |
Applicable Model |
CP4250 Heavy-Duty Hydraulic Rock Drill / Hydraulic Breaker |
Compatible CP Series |
CP1150, CP1400H, CP1650, CP1800H, CP2000H, CP2250, CP3050, CP4250 hydraulic impact equipment |
Main Material |
Fabric Reinforced NBR Diaphragm + Wear-resistant PU Cup Seal |
Max Working Pressure |
28MPa (280bar), Peak Pressure: 33MPa (330bar) |
Working Temperature |
-40°C ~ 120°C |
Product Composition |
Accumulator energy storage diaphragm, hydraulic reciprocating piston cup seal |
Cross Reference OEM No. |
3115234800 / 3115233300 |
Net Weight |
Approximately 0.45kg |
Applicable System |
Hydraulic breaker nitrogen accumulator system, drill cylinder reciprocating sealing system |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Key Selling Points
1. 100% Exact OEM Replacement
Fully compatible with original Atlas Copco CP4250 hydraulic rock drill and precisely matched with standard OEM dimensions and part numbers. No cutting, grinding or extra modification is required. It enables quick direct installation for daily maintenance, field overhaul and emergency on-site repair, effectively cutting down equipment downtime and labor costs.
2. High-Grade Composite Sealing Materials
Core diaphragm adopts fabric-reinforced NBR with high tear resistance and elastic recovery, capable of hundreds of thousands of cyclic heavy impact without cracking; hydraulic cup seal uses high-hardness PU material with strong anti-extrusion and wear resistance. The materials feature strong resistance to nitrogen aging, hydraulic oil corrosion and fatigue deformation. It maintains stable and reliable sealing performance continuously within the temperature range of -40°C to 120°C, adapting to alpine open-pit mining and high-temperature underground tunnel construction environments.
3. Superior High Pressure & Anti-Impact Performance
The diaphragm and cup seal have passed strict 28MPa high-pressure and long-cycle heavy impact simulation tests. It thoroughly eliminates accumulator nitrogen leakage and cylinder internal oil leakage, stabilizes hydraulic impact pressure, and ensures consistent striking force of CP4250 drill under heavy-load hard rock breaking, continuous impact and high-vibration working conditions.
4. Targeted Specialized Component Design
Independently developed for CP4250 large accumulator and piston sealing position, the curved bowl-shaped structure fits the inner cavity perfectly. Single independent packaging simplifies spare parts inventory sorting, shortens the overall repair cycle and reduces daily operation and maintenance costs of large mining equipment.
5. Rigorous Factory Quality Inspection
Every diaphragm and cup seal undergoes air tightness test, high-pressure durability test and cyclic impact aging test before delivery. All products comply with original factory technical standards, providing long-term stable operation guarantee for large mining and tunnel hydraulic equipment.
6. Extensive Application Scope
Specially designed for Atlas Copco CP4250 heavy hydraulic rock drill, widely used on various heavy-duty mining and engineering construction equipment:
• Open-pit Mining: Large quarry rock drilling, iron ore & granite exploitation, mine bench blasting hole drilling
• Tunnel Engineering: Mountain highway tunnel, mine roadway excavation, underground cavern rock breaking
• Municipal & Demolition: Large concrete foundation demolition, hard rock foundation excavation
• Water Conservancy Project: Hydropower tunnel excavation, dam foundation rock trimming
• Infrastructure Construction: Mountain road rock excavation, subway hard rock tunneling
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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