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 (piston cup) is customized for Etc. TOR70 hydraulic rock breakers, the core energy storage sealing part of breaker nitrogen accumulator, widely matched on 6–8 ton mini excavator hydraulic hammers for demolition, rock crushing and construction works. It adopts imported high-performance HNBR fluororubber integrated molding, with ultra-high fatigue resistance, oil resistance and wide temperature adaptability. It perfectly replaces original Etc. TOR70 OEM diaphragm, solves common faults like nitrogen leakage, impact force attenuation, unstable striking frequency and short hammer service life, greatly extending continuous working hours under long-period heavy impact load.
Item |
Detailed Parameter |
Product Name |
Etc. TOR70 Hydraulic Breaker Accumulator Diaphragm (Piston Cup) |
Applicable Model |
Etc. TOR70 Hydraulic Rock Breaker |
Compatible Series |
Etc. TOR Series Medium Small Hydraulic Hammer |
Main Material |
Imported High-strength HNBR Fluororubber, Integrated Vulcanized Reinforced Structure |
Max Working Pressure |
130MPa |
Working Temperature |
-35°C ~ 135°C |
Product Structure |
Integral bowl-shaped diaphragm, one-piece forming without splicing |
Cross Reference OEM No. |
ETC-TOR70, DH700218 |
Net Weight |
Approximately 0.42kg |
Applicable System |
Hydraulic Breaker Nitrogen Accumulator Energy Storage System |
Warranty |
12 Months |
1. 100% Precise OEM Matching. Fully fit original Etc. TOR70 breaker accumulator cavity, consistent with OEM part numbers ETC-TOR70 and DH700218. No cutting, grinding or modification required for direct replacement installation.
2. Premium Imported HNBR Sealing Material. Integral vulcanized high-performance HNBR rubber material, outstanding hydraulic oil resistance, anti-aging, anti-fatigue performance. Stable elastic output under -35°C low temperature construction and 135°C continuous high-temperature operation.
3. Anti-Leakage & Stable Impact Output. Passed 130MPa ultra-high pressure fatigue cycle test, effectively isolates nitrogen chamber and hydraulic oil circuit. Eliminate nitrogen leakage, maintain stable accumulator energy storage, guarantee consistent striking force and uniform hammer frequency without power drop.
4. Integrated One-Piece Molding Design. No splicing gap, thickened edge reinforcement structure, resist high-frequency reciprocating stretch deformation, avoid early cracking and rupture under long-time rock breaking impact, reduce frequent replacement downtime.
5. Strict Factory Full Inspection. Every diaphragm undergoes air tightness, high-pressure fatigue and thermal aging testing before delivery, fully meets OEM production standards, stable and reliable long-term construction performance.
6. Wide Application Scope. Matches Etc. TOR70 hydraulic breakers installed on multiple 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.
EN
AR
CS
DA
NL
FI
FR
DE
EL
IT
JA
KO
NO
PL
PT
RO
RU
ES
SV
TL
IW
ID
LV
SR
SK
VI
HU
MT
TH
TR
FA
MS
GA
CY
IS
KA
UR
LA
TA
MY
