PAA Hydraulic Breaker Diaphragm is designed for high-temperature and high-impact accumulator applications, offering excellent fatigue resistance, tear strength, and durability.
Item NO.:
PAAOrder(MOQ):
50Payment:
T/TProduct Origin:
ChinaShipping Port:
Shanghai、NingboProduct Description
PAA Hydraulic Breaker Diaphragm is an accumulator diaphragm designed for hydraulic breakers operating under high temperatures and high-impact pressure conditions. Made from high-strength, wear-resistant composite materials, it provides excellent elasticity and durability for demanding breaker applications.
Its specialized structure and manufacturing process help improve the energy storage and release efficiency of the accumulator, supporting the impact performance of the hydraulic breaker and improving overall working efficiency. The diaphragm is designed to maintain stable performance during prolonged and high-frequency breaking operations.

Technical Data
| Parameter | Value |
| Hardness | 87±5 Shore A |
| Tensile Strength | ≤ 55 MPa |
| Elongation at Break | 5.58 |
| Tear Strength | 100N/mm |
| TR 10 | -31℃ |
| Design type | Hydraulic Breaker Diaphragm |
Product Advantages
Product Parameter Table
| Designation | D | d | d1 | H1 | H2 | H3 | R | θ |
| [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | ||
| PAA 170X50 | 170 | 158 | 154 | 50 | 5.5 | 3.8 | 3 | 70° |
| PAA 190X55 | 190 | 178 | 173 | 55 | 5.5 | 3.5 | 3 | 70° |
| PAA 204X55 | 204 | 192 | 188 | 55 | 5.2 | 3.2 | 3 | 60° |
| PAA 240X64 | 240 | 228 | 219 | 64 | 5.2 | 3 | 4.8 | 59° |
| PAA 265X83 | 265 | 253 | 242 | 85 | 6 | 3.8 | 6 | 60° |
| PAA 267X76.5 | 267 | 255 | 243.8 | 76.5 | 6 | 3.8 | 6 | 60° |
| PAA 280X78 | 280 | 264 | 252 | 78 | 6.5 | 3.4 | 6 | 65° |
| PAA 290X102 | 290 | 270 | 257 | 102 | 8 | 4.5 | 7 | 65° |
| PAA 298X89 | 298 | 285.5 | 274 | 89 | 7.3 | 4.3 | 6 | 60° |
| PAA 310X102 | 310 | 290 | 276.8 | 102 | 8 | 4.5 | 7 | 65° |
| PAA 330X102 | 330 | 316.5 | 305 | 102 | 7.3 | 4.3 | 6 | 60° |
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