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 cup seal is specially engineered for Sandvik HL500, HL500S and HL510 hydraulic rock drills. It serves as the core isolation component inside the drill’s accumulator, separating high‑pressure nitrogen from hydraulic oil. Manufactured from imported high‑performance HNBR rubber material, this part delivers outstanding fatigue resistance, oil resistance and temperature adaptability. It can perfectly replace original Sandvik spare parts, solves common failures such as nitrogen leakage, insufficient impact power and unstable drilling performance, and extends service life under continuous high‑frequency impact mining operation。
Product Specifications
Item |
Detailed Parameter |
Product Name |
Sandvik HL500/HL500S/HL510 Rock Drill Diaphragm & Cup Seal |
Applicable Model |
HL500, HL500S, HL510 Hydraulic Rock Drill |
Compatible Series |
Sandvik HL‑Series Hydraulic Drifter |
Main Material |
Imported High‑strength HNBR Rubber with Reinforced Fiber Layer |
Max Working Pressure |
125MPa |
Working Temperature |
-35°C ~ 135°C |
Kit Contents |
Accumulator diaphragm, leather cup seal, matching auxiliary O‑rings |
Cross Reference OEM No. |
04114808,15235798 |
Net Weight |
Approximately 0.75kg |
Applicable System |
Hydraulic rock drill accumulator nitrogen‑oil isolation system |
Warranty |
12 Months |
Key Selling Points
1. 100% Exact OEM Replacement
Fully compatible with original Sandvik HL500 / HL500S / HL510 hydraulic rock drills, matches OEM part numbers 04114808 and 15235798. Direct installation without any modification, fits original accumulator housing perfectly。
2. Premium Imported HNBR Rubber Material
Core diaphragm and cup seal adopt high‑performance HNBR rubber with special reinforcing fiber treatment. Excellent oil‑proof, anti‑aging and anti‑fatigue performance, maintains stable elasticity under‑35°C to 135°C harsh working environment。
3. Anti‑Leakage & High‑Frequency Impact Durability
All finished products pass strict 125MPa high‑pressure and cyclic fatigue testing. Effectively prevents nitrogen escape and hydraulic oil cross‑leakage inside accumulator, guarantees stable impact energy and consistent drilling efficiency of rock drill。
4. Complete Matching Repair Accessory
Supplied together with supporting auxiliary O‑rings required for accumulator overhaul. Complete matching parts simplify on‑site maintenance work, reduce equipment downtime and lower overall operation cost of mining machinery.
5. Strict Factory Quality Control
Every diaphragm & cup seal goes through air tightness, high‑pressure resistance and fatigue aging tests before delivery. Meets original equipment standards, ensures reliable long‑term performance for heavy‑duty mining applications.
6. Application Scope
Designed for Sandvik HL500 / HL500S / HL510 hydraulic rock drills equipped on multiple heavy‑duty mining & engineering equipment:
• Underground mining drilling jumbos
• Surface rock drilling rigs
• Tunnel boring & excavation equipment
• Metallurgical mine heading machinery
• Hydraulic drilling systems for quarry operation
• High‑frequency impact hydraulic drifter working conditions
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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