Crane Hoist Specs: overhead_bridge
Crane and hoist load ratings, duty classifications, and design parameters for overhead bridge cranes (single/double girder, top running/underhung), gantry cranes, jib cranes, monorails, and electric chain/wire rope hoists. Covers CMAA Classes A-F, FEM/ISO mechanism groups M2-M7, safe working load, span, bridge/trolley/hoist speeds, design life, and load spectrum factor per ASME B30 series, CMAA 70/74, FEM 1.001, ISO 4301-1.
| crane type | record id | bridge speed fpm (ft/min) | bridge speed mpm (m/min) | cmaa class | crane subtype | deflection limit span ratio (dimensionless) | design life cycles (cycles) | fem iso group | hoist speed fpm (ft/min) | hoist speed mpm (m/min) | hook approach min in (in) | load spectrum factor (dimensionless) | notes | power hp (hp) | span ft (ft) | span m (m) | swl kg (kg) | swl tons (short tons) | trolley speed fpm (ft/min) | trolley speed mpm (m/min) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| overhead_bridge | DGTR_100t_E | 400 | 121.9 | E | double_girder_top_running | 888 | 2,000,000 | M6 | 30 | 9.1 | 9 | 0.8 | Severe service; 100 ton; smelting; primary metals; continuous production cranes | 250 | 100 | 30.5 | 90,720 | 100 | 200 | 61 |
| overhead_bridge | DGTR_100t_F | 500 | 152.4 | F | double_girder_top_running | 888 | 4,000,000 | M7 | 40 | 12.2 | 9 | 1 | Continuous severe; 100 ton; ladle cranes; highest fatigue design requirement | 350 | 100 | 30.5 | 90,720 | 100 | 250 | 76.2 |
| overhead_bridge | DGTR_10t_C | 250 | 76.2 | C | double_girder_top_running | 888 | 500,000 | M4 | 25 | 7.6 | 9 | 0.5 | Double girder for spans >40 ft; better hook approach; moderate service | 30 | 40 | 12.2 | 9,072 | 10 | 125 | 38.1 |
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