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 is engineered for Epiroc 1638HD and 1638HD+ hydraulic rock drills. It serves as a core rubber component of the nitrogen accumulator, resisting frequent impact pulses under high‑pressure drilling conditions.
Manufactured from imported high‑performance HNBR rubber material, this diaphragm delivers outstanding oil resistance, nitrogen‑gas compatibility, fatigue resistance and temperature stability. It is a direct replacement for original spare parts, effectively solving accumulator nitrogen leakage, insufficient impact power and premature accumulator failure, extending rock drill service life under continuous underground heavy‑duty drilling operations。
Product Specifications
Item |
Detailed Parameter |
Product Name |
Epiroc 1638HD / 1638HD+ Rock Drill Accumulator Diaphragm |
Applicable Model |
1638HD, 1638HD+ Hydraulic Rock Drill |
Compatible Series |
Epiroc Underground Hydraulic Rock Drill Series |
Main Material |
Imported High‑performance HNBR Rubber |
Max Working Pressure |
32MPa |
Working Temperature |
-35°C ~ 135°C |
Kit Contents |
1 × Accumulator Diaphragm (Cup Seal / Rubber Membrane) |
Cross Reference OEM No. |
3115182201 |
Net Weight |
Approximately 0.42kg |
Applicable System |
Rock drill nitrogen accumulator system |
Warranty |
12 Months |
Key Selling Points
1. 100% Exact OEM Replacement.
Fully compatible with original Epiroc 1638HD and 1638HD+ rock drills. Matches OEM part number 3115182201. No modification required for direct field installation。
2. Premium Imported HNBR Rubber Material.
Adopts high‑grade HNBR compound, featuring excellent gas‑tightness against nitrogen, oil‑proof, anti‑aging and anti‑fatigue performance. Maintains stable elasticity within‑35°C to 135°C working range, suitable for harsh underground mining environments。
3. Anti‑Fatigue & High‑Impact Durability.
Every diaphragm is tested for thousands of cyclic impact pulses under 32MPa working pressure. Resists repeated shock loads from rock drill striking action, prevents early cracking and gas leakage, keeps stable accumulator nitrogen pressure and consistent drilling impact power.
4. Reduce Breakdown & Maintenance Cost.
Effectively fixes typical faults: accumulator nitrogen escape, weak striking force, unstable drilling performance. Fast‑change spare part lowers on‑site repair downtime and cuts overall equipment operating expenses.
5. Strict Factory Quality Control.
Each finished diaphragm passes air‑tightness, pressure‑cycling and aging inspection before shipment. Dimensional tolerance meets OEM standard for reliable long‑term mining‑site performance.
6. Application Scope.
Specially fitted for Epiroc 1638HD /1638HD+ rock drill mounted on various heavy‑duty drilling rigs:
• Underground mining drill jumbos
• Tunnel excavation drilling rigs
• Hard rock tunneling equipment
• Underground construction drilling machinery
• Hydraulic rock drill nitrogen accumulator assemblies
• High‑impact heavy‑duty drilling mobile equipment
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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