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]
Home / Products / Rock drill diaphragm / Etc.
This heavy-duty diaphragm cup repair kit is specially developed for Etc.TR210 hydraulic rock drills, widely applied in mine tunneling, quarrying, road engineering and underground construction machinery. It contains complete integrated diaphragm cup, O-rings, gaskets, wear-resistant backup rings and auxiliary sealing parts for full accumulator overhaul of rock drills.
Constructed with imported fabric-reinforced NBR and high-performance FKM fluororubber, the kit boasts outstanding oil resistance, low-temperature flexibility, high impact fatigue resistance and anti-aging performance. It perfectly replaces OEM original TR210 diaphragm assemblies, solves core faults including nitrogen-oil mixing, internal leakage, insufficient impact force and unstable drilling power, and greatly extends the continuous service life of rock drills under high-frequency heavy impact working conditions.
Item |
Detailed Parameter |
Product Name |
TR210 Rock Drill Diaphragm Cup Complete Seal Kit |
Applicable Model |
Etc.TR210 Hydraulic Rock Drill |
Compatible Series |
TR Series Hydraulic Rock Drills (TR210/TR220) |
Main Material |
Fabric Reinforced Imported NBR / FKM Fluororubber + Hardened Backup Ring |
Max Working Pressure |
25MPa (250 Bar) |
Working Temperature |
-35°C ~ 120°C |
Kit Contents |
Integrated diaphragm cup, O-rings, sealing gaskets, anti-extrusion backup rings, full overhaul supporting parts |
Cross Reference OEM No. |
TR210-DIA, 3115192602 |
Net Weight |
Approximately 0.68kg |
Applicable System |
Hydraulic accumulator nitrogen-oil separation system for rock drill |
Warranty |
12 Months |
Fully dimensionally matched with original Etc.TR210 rock drill accumulator components, consistent with OEM part numbers TR210-DIA and 3115192602. No cutting, grinding or modification required, quick on-site replacement to resume construction rapidly.
Core diaphragm cup adopts fabric interlayer composite NBR+FKM blended rubber, effectively resist high-frequency reciprocating impact fatigue. Excellent oil, ozone and aging resistance, maintain stable elasticity and sealing performance within -35°C to 120°C wide temperature range.
All components pass strict 25MPa high-pressure cycle fatigue testing. The integrated diaphragm cup achieves complete separation of hydraulic oil and nitrogen, eliminates internal cross-leakage failure, stabilizes rock drill impact energy and guarantees consistent drilling efficiency without power attenuation.
Covers all sealing and wearing spare parts required for full TR210 accumulator maintenance. Integrated matching accessories reduce spare parts stocking types, shorten equipment maintenance downtime and lower overall construction operating costs.
Every set of diaphragm seal kits undergoes air tightness, high-pressure fatigue and thermal aging tests before delivery, fully complies with OEM industrial quality standards, delivering long-term reliable performance under continuous mining heavy-duty operation.
Perfectly matched with Etc.TR210 hydraulic rock drills used on multiple heavy-duty construction & mining equipment: • Underground mine tunneling rock drilling rigs • Quarry stone splitting & blasting drilling equipment • Road & tunnel engineering hydraulic rock drills • Mobile drilling rigs for slope support • Hydraulic accumulator supporting system of all TR series rock drills • High-frequency impact heavy-duty underground construction machinery
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