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QB Type Double Girder Overhead Crane Anti Explosion Crane
Product descriptions of QB Model double girders Anti explosion or exproof eot crane:
QB Explosion proof double girder girder electric overhead traveling crane, the lifting unit is a hook, It is usually to be used to explosive environment. It mainly consists of lifting trolley,bridge frame,long traveling unit,hook and wire rope,magnet system, cabin and electric control system,etc.
The explosion proof has special design on crane wheel,hook and wirerope to avoid spark happening,.
It has reasonable structure,light dead weight,low noise,easy operation and maintenance,low maintenance frequency and cost,superior performance,long service life.
QB Explosion proof double girder girder electric overhead traveling crane Normal capacity are 5t,10t,16t,16/3.2t,20/5t,32/5t,the span is 10.5m-31.5m, lifting height 16-20m, working class is A6.
Control model: cabin control.
And ambient temperature normally not more than 45ºC
Detailed Photos
Mechanical parts of QB Model double girders Anti explosion or exproof eot crane:
Double welding box girder, beam deflection with DIN/FEM standard
Steel Material: Chinese standard steel Q235B,Q345B
Manual brush painting,One alkyd iron red primer painting, two alkyd orange enamel finish painting
Epoxy zinc-rich primer painting for one bottoms and two sides of 120μm thick, to achieve a long lifespan, beautiful appearance and good luster.
The girder and end beam are connected together by high strength bolts to ensure the structure strength and precision of the whole machine.
The end beams are equipped with flat wheel or double rim wheels, anti-friction bearings, buffer blocks and derailment preventing plate
Safe system
Weight overload protection device
Emergency stop system
Over current Protection, Short-circuit Protection
Phase sequence protection
Zero position protection, No-Voltage protection, convenient and simple operation.
Protective earth conductor is fitted as standard
Voltage lower protection system
Current overload protection system
High protection level IP44,IP54,IP55
Long and cross travel limit switch
Anti-falling protection of trolley and crane prevents from accidental falling
High quality long time bearing polyurethane materials buffer fixed at the end of trolley travelling and crane travelling to prevent over traveling
Safety hook latch used for avoiding the lifted material out off from the hook
Audible and visual alarm device to inform the person stay near by the travelling crane
Rain Cover for lifting mechanism of outdoor cranes, electric cabinet and driving mechanism
Technical parameters:
| Lifting weight(t) | 5 | 10 | 16 | 20 | |
| Span(m) | 10.5~31.5 | ||||
| Max Lifting height(m) | 6~30 | ||||
| Working class | A6,A7 | ||||
| Speed(m/min) | Main Hoisting | 12.9,15.66 | 10.4,15.3 | 10.4,13.3 | 8.6,9.8 |
| Speed(m/min) | Trolley Cross Traveling | 43.8,44.6,42.4 | |||
| Speed(m/min) | Crane Long Traveling | 70,80 | |||
| Motor Type | Heavy Duty Slip ring Motor | ||||
| Motor (Kw) | Main Hoisting | 26,30 | 34,45 | 42,55 | 63,90 |
| Trolley Cross Traveling | 2.5,4,6.3 | ||||
| Crane Long Traveling | 2*4,2*5.5,2*7.5,2*8.5,2*11 | ||||
| Control mode | Pendent line control,Remote control,Cabin control | ||||
| Recommended Rail model | 38kgs/m,43kgs/m,QU70 | ||||
| Power source | 3Ph A.C 50Hz 380V | ||||
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