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 DP2200 heavy-duty hydraulic rock drifter, the core high-power drilling equipment for underground mining and tunnel excavation. The complete set includes energy storage diaphragm and hydraulic reciprocating piston cup seal, fully meeting full overhaul and daily maintenance demands of DP2200 rock drill.
Adopting fabric-reinforced high-toughness NBR rubber and high-wear PU polyurethane as core raw materials, this sealing assembly features outstanding nitrogen resistance, anti-fatigue impact, wear resistance and anti-aging performance, serving as a reliable direct replacement for original Atlas Copco OEM spare parts. It effectively solves common failures such as accumulator nitrogen leakage, cylinder internal oil leakage and system pressure drop, greatly extending the service life of DP2200 drifter under long-term high-frequency impact, severe vibration and heavy dust harsh underground working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Atlas Copco DP2200 Hydraulic Rock Drill Diaphragm & Cup Seal |
Applicable Model |
DP2200 Heavy-Duty Hydraulic Tunnel Drifter |
Compatible Series |
Atlas Copco DP Series Drifter (DP1100, DP1500, DP1800, DP2200, DP2500) |
Main Material |
Fabric Reinforced NBR Diaphragm + High Hardness Wear-Resistant PU Cup Seal |
Max Working Pressure |
28MPa (280bar), Peak Instant Pressure: 33MPa (330bar) |
Working Temperature |
-40°C ~ 130°C |
Product Composition |
Accumulator energy storage diaphragm, hydraulic impact piston cup seal |
Cross Reference OEM No. |
(To be filled with actual OEM part numbers) |
Net Weight |
Approximately 0.45kg |
Applicable System |
Rock drill nitrogen accumulator system, impact cylinder reciprocating sealing system |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Key Selling Points
1. 100% OEM Standard Dimension, Direct Installation Without Modification
Fully matched with original DP2200 hydraulic drifter in overall size, curved surface radian and assembly size, consistent with factory OEM part standards. No cutting, grinding or secondary modification required. Suitable for daily maintenance, underground field overhaul and emergency rush repair, drastically cutting equipment downtime and labor maintenance costs.
2. Composite High-Grade Sealing Material, Stable Sealing in Full Temperature Range
The energy storage diaphragm adopts multi-layer fabric-reinforced nitrile rubber, featuring ultra-high tear resistance and elastic recovery, resisting cracking after millions of cyclic high-frequency impacts. The piston cup seal uses imported high-hardness PU material with strong anti-extrusion and wear resistance. The material formula resists nitrogen aging, hydraulic oil corrosion and long-cycle fatigue deformation, maintaining stable sealing elasticity continuously from -40°C alpine mining to 130°C high-temperature deep underground operation environments.
3. High Pressure & Impact Resistant, Eliminate Pressure Loss & Leakage
All diaphragm and cup seal components pass strict 28MPa high-pressure sealing test and long-cycle impact fatigue simulation test. The integrated curved bowl structure fits the inner cavity of DP2200 accumulator perfectly, thoroughly stopping nitrogen escape and cylinder internal oil seepage, stabilizing hydraulic impact pressure output, and ensuring constant striking power of DP2200 drifter under heavy rock drilling, continuous impact and strong vibration underground working conditions.
4. Customized Special Structure for DP2200, Easy Inventory & Maintenance
Independently molded targeted for DP2200 accumulator and impact piston sealing positions, with precise curved surface matching cavity structure. Single independent packaging simplifies spare parts classification and warehouse management, shortens overall repair cycle, and reduces long-term operation and maintenance costs of mining drilling equipment.
5. Multi-Round Factory Strict Inspection, Quality Equivalent to Original Parts
Every set of diaphragm and cup seal undergoes air tightness leak test, high-pressure durability test and cyclic impact aging test before delivery. All performance indicators meet Atlas Copco original factory technical standards, providing long-term stable operation guarantee for underground mining and tunnel hydraulic drilling equipment.
6. Wide Application Scenarios for Heavy Rock Drilling
Customized supporting parts for Atlas Copco DP2200 hydraulic rock drifter, widely applied to all kinds of underground heavy-duty rock engineering equipment:
• Underground Metal Mine: Roadway tunneling, deep hole rock drilling, ore body blasting hole construction
• Tunnel Engineering: Highway/railway mountain tunnel excavation, water diversion tunnel rock drilling
• Non-Coal Mine: Stone quarry deep hole drilling, underground mineral excavation
• Hydropower Project: Hydropower underground cavern drilling, dam foundation anchoring hole construction
• Urban Underground Engineering: Metro tunnel rock breaking, underground pipe gallery 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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