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The HHR double acting hollow piston cylinder builds upon the HHS design with enhanced operational speed and performance. The double acting design delivers substantial hydraulic pulling force during piston retraction, ideal for demanding tooling, maintenance, and tensioning work with capacities from 33 to 247 tonnes.

Hi-Force Cylinders
The HHR double acting hollow piston cylinder builds upon the HHS design with enhanced operational speed and performance. The double acting design delivers substantial hydraulic pulling force during piston retraction, ideal for demanding tooling, maintenance, and tensioning work with capacities from 33 to 247 tonnes.
| Model | Capacity (tonnes) Push | Capacity (tonnes) Pull | Stroke (mm) | Oil Capacity (cm3) | Cylinder Effective Area (cm2) | Weight (kg) | Quote |
|---|---|---|---|---|---|---|---|
| HHR302 | 33 | 24 | 51 | 238 | 46.7 | 12.2 | |
| HHR306 | 33 | 24 | 150 | 701 | 46.7 | 17.6 | |
| HHR3012 | 33 | 24 | 305 | 1424 | 46.7 | 25.7 | |
| HHR603 | 61 | 38 | 76 | 652 | 85.7 | 30.6 | |
| HHR606 | 61 | 38 | 152 | 1304 | 85.7 | 41.6 | |
| HHR6010 | 61 | 38 | 254 | 2179 | 85.7 | 52.5 | |
| HHR1003 | 102 | 43 | 76 | 1087 | 143.1 | 68.5 | |
| HHR1006 | 102 | 43 | 152 | 2174 | 143.1 | 90.0 | |
| HHR1508 | 152 | 71 | 203 | 4320 | 212.8 | 170.0 | |
| HHR2508 | 247 | 76 | 203 | 7039 | 346.5 | 269.0 |
| Model | A (mm) | B (mm) | C (mm) | D (mm) | E | F (mm) | G | H (mm) | I (mm) | J (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| HHR302 | 180 | 115 | 60.3 | 35 | 4 1/2"-12un | 40 | M8 | 92 | 28 | 119 |
| HHR306 | 279 | 115 | 60.3 | 35 | 4 1/2"-12un | 40 | M8 | 92 | 28 | 218 |
| HHR3012 | 434 | 115 | 60.3 | 35 | 4 1/2"-12un | 40 | M8 | 92 | 28 | 373 |
| HHR603 | 239 | 160 | 92 | 55 | 6 1/4"-12un | 45 | M12 | 130 | 31 | 166 |
| HHR606 | 315 | 160 | 92 | 55 | 6 1/4"-12un | 45 | M12 | 130 | 31 | 242 |
| HHR6010 | 417 | 160 | 92 | 55 | 6 1/4"-12un | 45 | M12 | 130 | 31 | 344 |
| HHR1003 | 310 | 213 | 140 | 80 | 8 3/8"-12un | 40 | M16 | 178 | 82 | 234 |
| HHR1006 | 386 | 213 | 140 | 80 | 8 3/8"-12un | 40 | M16 | 178 | 82 | 310 |
| HHR1508 | 503 | 270 | 184 | 102 | n/a | n/a | n/a | n/a | 98 | 389 |
| HHR2508 | 505 | 350 | 254 | 150 | n/a | n/a | n/a | n/a | 98 | 389 |