A Spring Return Bolt Tensioner is a hydraulic tool designed for fast and reliable bolt tightening. It uses hydraulic pressure to stretch the bolt, and an integrated spring mechanism automatically retracts the piston after the operation. This ensures rapid, safe, and efficient tensioning, making it ideal for critical applications where speed and accuracy are essential.
XST SERIES
| Model | BOLT SIZE | Max. Load KN (Ton) | Hyd. Area cm² (in²) | A mm (in) | B mm (in) | C mm (in) | Clearance Dmm (in) | Weight Kg (lbs) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Imperial | Model | Metric | Model | ||||||||
| XST 1 | 3/4" | XST2-1 | M20 | XST1-3 | 160 (16.31) | 10 (1.56) | 66 (2.59) | 93 (3.66) | 136 (5.35) | 1.4 (3.08) | |
| XST 2 | 1" | XST2-1 | M24 | XST2-3 | 280 (28.55) | 18.67 (2.89) | 87 (3.42) | 117 (4.60) | 68 (2.67) | 175 (6.88) | 2.7 (5.95) |
| 1" | XST3-1 | M24 | XST3-5 | ||||||||
| XST 3 | 1-1/8" | XST3-2 | M30 | XST3-7 | 450 (45.88) | 30.01 (4.65) | 103 (4.05) | 117 (4.60) | 80 (3.14) | 80 (3.14) | 4.1 (9.03) |
| - | - | - | - | 120 (4.72) | 84 (3.30) | 84 (3.30) | |||||
| 1-3/8" | XST3-4 | M36 | XST3-9 | 123 (4.84) | 89 (3.50) | 89 (3.50) | |||||
| - | - | - | - | 126 (4.96) | 88 (3.46) | 88 (3.46) | |||||
| XST 4 | 1-3/8" | XST4-2 | M36 | XST4-6 | 660 (67.30) | 44.01 (6.82) | 118 (4.64) | 123 (4.84) | 96 (6.77) | 96 (6.77) | 5.4 (11.9) |
| - | - | - | - | 126 (4.96) | 96 (3.77) | 96 (3.77) | |||||
| 1-5/8" | XST4-4 | M42 | XST4-8 | 130 (8.11) | 105 (4.13) | 105 (4.13) | |||||
| - | - | - | - | 133 (5.23) | 112 (4.40) | 112 (4.40) | |||||
| XST 5 | 1-5/8" | XST5-2 | M42 | XST5-7 | 1000 (101.97) | 66.68 (10.33) | 140.5 (5.53) | 132 (5.19) | 114 (4.48) | 114 (4.48) | 8.4 (18.51) |
| - | - | - | - | 135 (5.31) | 118 (4.64) | 118 (4.64) | |||||
| 1-7/8"* | XST5-4 | M48 | XST5-9 | 139 (5.47) | 114 (4.48) | 114 (4.48) | |||||
| - | - | - | - | 142 (5.59) | 120 (4.72) | 120 (4.72) | |||||
| 2" | XST6-1 | M52 | XST6-5 | 145 (5.70) | 120 (4.72) | 120 (4.72) | |||||
| XST 6 | - | - | M60 | XST6-7 | 1500 (152.95) | 100.03 (15.50) | 175.5 (6.90) | 148 (5.82) | 138 (5.43) | 259 (10.19) | 13.8 (30.42) |
| - | - | - | - | 154 (6.06) | 138 (5.43) | 259 (10.19) | |||||
| 2-3/4" | XST6-4 | M68 | XST6-9 | 161 (6.33) | 153 (6.02) | 272 (10.70) | |||||
| - | - | - | - | 167 (6.57) | 156 (6.14) | 284 (11.18) | |||||
| XST 7 | 3" | XST6-1 | M76 | XST7-6 | 2500 (254.92) | 166.71 (25.84) | 219 (8.62) | 167 (6.57) | 157 (6.18) | 294 (11.57) | 23 (50.70) |
| - | - | - | - | 171 (6.73) | 158 (6.22) | 307 (12.08) | |||||
| 3-1/4" | XST67-3 | M85 | XST7-8 | 180 (7.08) | 190 (7.48) | 310 (12.20) | |||||
| - | - | - | - | 186 (7.32) | 190 (7.48) | 320 (12.59) | |||||
| - | - | - | - | 180 (7.08) | 205 (8.07) | 332 (13.07) | |||||
| XST 8 | 3-1/4" | XST 8-1 | M90 | XST 8-4 | 3200 (326.30) | 213.39 (33.07) | 252 (9.92) | 186 (7.32) | 200 (7.87) | 339 (13.34) | 32 (70.54) |
| - | - | - | - | 186 (7.32) | 200 (7.87) | 346 (13.62) | |||||
| 3-3/4" | XST 8-2 | M100 | XST8-6 | 192 (7.55) | 200 (7.87) | 352 (13.85) | |||||
| - | - | - | - | 199 (7.83) | 210 (8.26) | 364 (14.33) | |||||
