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 accumulator diaphragm and piston cup seal kit is specially developed for DAEMO B300, B360, B450 hydraulic rock breakers, core spare parts for large excavator hydraulic hammer energy storage systems. The full set includes accumulator rubber diaphragm, piston cup seal, auxiliary O-rings, anti-extrusion backup rings and gaskets for complete accumulator overhaul.
Adopted imported high-performance HNBR modified rubber and reinforced fiber composite material, the kit delivers outstanding oil resistance, high-frequency fatigue resistance, low-temperature elasticity and anti-aging performance. It perfectly matches original DAEMO spare parts, effectively solves common faults including nitrogen leakage, insufficient impact force, pressure attenuation and abnormal hammer heating, greatly extending breaker service life under continuous heavy-duty rock breaking and demolition work.
Item |
Detailed Parameter |
Product Name |
DAEMO B300/B360/B450 Breaker Accumulator Diaphragm & Cup Seal Kit |
Applicable Model |
DAEMO B300 / B360 / B450 Hydraulic Rock Breaker |
Compatible Series |
DAEMO large hydraulic hammer series |
Main Material |
Imported HNBR high temperature resistant rubber + fiber reinforced backup ring |
Max Working Pressure |
130MPa |
Working Temperature |
-30°C ~ 130°C |
Kit Contents |
Accumulator diaphragm, piston cup seal, O-rings, gaskets, anti-extrusion backup rings, full accumulator repair parts |
Cross Reference OEM No. |
DAEMO-B300, DAEMO-B360, DAEMO-B450, OEM spare part serial: 23380025, 23380032, 23380040 |
Net Weight |
Approximately 1.2kg |
Applicable System |
Hydraulic breaker nitrogen accumulator energy storage system |
Warranty |
12 Months |
Fully dimensional consistent with original DAEMO B300/B360/B450 breaker accumulator accessories, matching official OEM part numbers. Zero modification required, direct plug-and-play installation, stable interchangeability without gas leakage after assembly.
Core diaphragm and piston cup adopt high-performance HNBR rubber with fiber reinforcement layer, featuring ultra-high fatigue resistance. It maintains stable elasticity under thousands of high-frequency reciprocating impacts per minute, resistant to hydraulic oil corrosion, aging and hardening within -30°C to 130°C working range.
All components pass strict 130MPa high-pressure sealing and nitrogen tightness tests. Thoroughly isolates hydraulic oil and nitrogen chamber, eliminates internal & external air/oil leakage, keeps constant accumulator pressure and steady breaker impact force, avoids power drop and overheating during long-hour operation.
Integrates all sealing and wearing parts needed for full accumulator disassembly maintenance. One set covers B300/B360/B450 three mainstream large breaker models, reduces spare parts stocking types, shortens on-site repair downtime and lowers equipment operation & maintenance cost.
Every diaphragm and cup seal undergoes vulcanization inspection, high-frequency fatigue test, high-low temperature aging test and air tightness test before delivery. Fully meets DAEMO original equipment manufacturing standards, guarantees long-term reliable performance in harsh quarry, demolition and mining environments.
Designed for DAEMO B300/B360/B450 hydraulic breakers mounted on heavy-duty construction 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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