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Hydraulic Crawler Cranes
7250S
Main Specifications (Model: 7250S)
| Crane Boom | Max. Lifting Capacity | 250 t × 4.6 m |
|---|---|---|
| Max. Length | 76.2 m | |
| Fixed Jib | Max. Lifting Capacity | 22.7 t × 15.0 m |
| Max. Combination | 76.2 m + 30.5 m | |
| Long Boom |
Max. Lifting Capacity | 37.5 t / 14.4 m |
| Max. Length | 91.4 m | |
| Tower Jib |
Max. Jib Length |
51.8 m |
| Max. Combination |
64.1 m + 51.8 m | |
|
Main & Aux. Winch |
Max. Line Speed (1st layer) | 110 m/min |
|
Rated Line Pull (Single line) |
132 kN {13.5 tf} | |
| Wire Rope Diameter |
28 mm × 390 m | |
| Wire Rope Length |
390 m (Main), 220 m (Aux.) | |
| Brake Type | Wet-type multiple disc brake (Optional) | |
| Working Speed | Swing Speed | 2.2 min-1 {rpm} |
| Travel Speed | 1.0 / 0.6 km/h | |
| Power Plant | Model | HINO P11C-VH |
| Engine Output | 271 kW / 1,850 min-1 | |
| Fuel Tank | 400 liters | |
| Hydraulic System | Main Pumps | 4 variable displacement |
| Max. Pressure | 31.9 MPa {325 kgf/cm2} | |
| Hydraulic Tank Capacity | 650 liters | |
| Weight | Operating Weight |
212 t * |
| Ground Pressure |
123 kPa | |
| Counterweight | 97,100 kg | |
| Transport Weight | 44,400 kg ** |
Units are SI units. { } indicates conventional units.
Line speeds in table are for light loads. Line speed varies with load.
* Including upper and lower machine, 97.1 ton counterweight, 23.1 ton carboy
weight, basic boom, hook, and other accessories.
** Base Machine with boom base, gantry, wire ropes (front/boom hoist)
(Unit: mm)
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