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| Categories | Overhead Bridge Crane | 
|---|---|
| Brand Name: | Dowellcrane | 
| Model Number: | QB | 
| Certification: | SGS IOS CE | 
| Place of Origin: | China (Mainland) | 
| MOQ: | 1 | 
| Price: | usd 15000-75000/set | 
| Supply Ability: | 4500sets per year | 
| Delivery Time: | 40days | 
| Packaging Details: | Packed by plywood crate or plastic woven cloth | 
| Product name: | Flexible QB Type 30 ton Explosion-Proof Double Girder Bridge Crane | 
| Lifting speed: | 5-15M/MIN | 
| Trolley running speed: | 20-40M/MIN | 
| Crane running speed: | 50-100M/MIN | 
| Protection grade: | IP54 | 
| Power source: | 3 phase 380V 50hz or request | 
| Colour: | request | 
| Warranty: | 2 Years | 
| Control method: | cabin control/wire rope remote control | 
| Company Info. | 
| Henan Dowell Crane Co., Ltd. | 
| View Contact Details | 
| Product List | 
Flexible QB Type 30 ton Explosion-Proof Double Girder Bridge Crane
Brief Introduction:
This QB explosion proof bridge crane work together with a BCD explosion proof electric hoist. The structure equipped with sealed cover,it has strong explosion proof ability.The lift capacity is 5ton-32ton.Span length is 10.5m-31.5m. Work duty A3-A4,working environment temperature is -25~ 40℃
It can work in combustible, flammable, explosive, heavy dust factory, warehouse, yard and other places corrosive environment.
Technical Parameters:
| Main Parameters List(Customized production acceptable) | ||||||
| Crane Traveling Mechanism | Traveling Speed(m/min) | 20 | 30 | 45 | 60 | |
| Ratio | 58.95 | 39.42 | 26.51 | 19.44 | ||
| Motor | Type | Cone Squirrel-cage | Cone Squirrel-cage | |||
| Power(kw) | 0.8*2, 1.5*2, 2.2*2 | 1.5*2, 2.1*2 | ||||
| Rotary Speed(r/min) | 1380 | 1350 | ||||
| Hoist Lifting Mechanism and Traveling Mechanism | Electric Hoist Model | MD1 | CD1 | |||
| Lifting Speed(m/min) | 8/0.8, 7/0.7, 3.5/0.35 | 8, 7, 3.5 | ||||
| Span(m) | 5-40 or assigned | |||||
| Lifting Capacity(t) | 6-30 | |||||
| Lifting Height(m) | 6, 9, 12, 18, 24, 30 | |||||
| Traveling Speed(m/min) | 20, 30 | |||||
| Motor | Cone Squirrel-cage | |||||
| Work Duty | Intermediate Jc=25% | |||||
| Power Supply | 380V 50HZ 3P | |||||
| Wheel Diameter | Φ270, Φ400 | |||||
| Trail Width | 37-70 | |||||
Parts of bridge crane:

                                 
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