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]
This heavy-duty repair diaphragm seal kit is customized for MONTABERT M700 hydraulic rock drill & hydraulic breaker, widely applied in mining tunneling, quarrying, road demolition and underground engineering machinery. The kit contains core accumulator diaphragm cup, shaft oil seals, O-rings, gaskets, PU buffer rings and PTFE backup rings for full machine overhaul.
Adopted imported high-performance HNBR + FKM fluororubber + wear-resistant PU composite material, the kit boasts outstanding hydraulic oil resistance, anti-fatigue, high impact and wide temperature adaptability. It fully replaces original MONTABERT sealing parts, solves common failures such as accumulator gas leakage, hydraulic oil seepage, impact power attenuation and abnormal vibration, effectively extending the service life of M700 rock drill under long-period high-frequency impact heavy-load working conditions.
Item |
Detailed Parameter |
Product Name |
MONTABERT M700 Rock Drill Diaphragm Seal Kit |
Applicable Model |
M700 / BRM700 / 700MS Hydraulic Breaker Rock Drill |
Compatible Series |
MONTABERT M700 Series Hydraulic Hammer |
Main Material |
Imported HNBR Diaphragm + FKM Fluororubber + PU Buffer Ring + PTFE Reinforced Backup Ring |
Max Working Pressure |
28MPa |
Working Temperature |
-30°C ~ 120°C |
Kit Contents |
Accumulator diaphragm cup, shaft seal, O-rings, cylinder gaskets, PU buffer rings, PTFE backup rings, full overhaul sealing accessories |
Cross Reference OEM No. |
86634102 (Seal Kit), 86634052 (Diaphragm) |
Net Weight |
Approximately 0.48kg |
Applicable System |
Hydraulic nitrogen accumulator system, high-frequency impact hydraulic breaking system |
Warranty |
12 Months |
Fully matched with original MONTABERT M700 rock drill, consistent with OEM part numbers 86634102 full seal kit and 86634052 standard diaphragm. No cutting, modification or fitting adjustment required, plug-and-play for fast on-site maintenance.
Core accumulator diaphragm adopts imported thickened HNBR rubber with high elasticity and anti-fatigue performance; dynamic sealing parts use FKM fluororubber paired with wear-resistant PU buffer rings. Resists hydraulic oil, nitrogen aging, high-frequency impact, stable performance in -30°C ~ 120°C severe working environment.
All components pass 28MPa high-pressure nitrogen sealing test and millions of times impact fatigue test. Effectively eliminates accumulator air leakage, cylinder internal/external oil leakage, stabilizes impact force output, avoids rock drill power drop and frequent nitrogen refilling problems.
Covers all sealing spare parts required for full disassembly maintenance of M700 rock drill, including vulnerable diaphragm 皮碗，main shaft seals and all standard O-rings & gaskets. Integrated one-stop kit shortens equipment downtime and reduces overall maintenance cost.
Every set undergoes air tightness test, high-pressure aging test and impact wear test before delivery, fully meets MONTABERT original factory quality standards, stable and reliable for long-term mining and construction heavy-duty operation.
Suitable for MONTABERT M700 hydraulic rock drill & breaker matched on various heavy-duty engineering equipment: • Medium and large excavator hydraulic breakers (12–20 ton excavator supporting) • Underground tunneling rock drilling rigs • Quarry stone breaking & mining machinery • Road demolition, concrete crushing equipment • Underground mine hydraulic impact equipment • High-frequency nitrogen accumulator hydraulic breaking systems
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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