Explosion-proof overhead cranes are one of the various types of explosion-proof and hazardous environment material handling overhead bridge cranes, with all the motors and electrical equipment of the explosion-proof overhead crane manufactured in line with international standards and regulations. The lifting capacity of the explosion-proof overhead bridge crane is 1 to 75 tons.
| Type | KDB |
| Lifting Capacity | 1 to 75 ton |
| Lifting Height | 3 to 30 meter |
| Span | 6 to 31.5 meter |
| Lifting speed | 0.33-8 m/min |
| Hoist running speed | 20 m/min |
| Crane running speed | 20 m/min |
| Explosion-proof grade | ExdⅡBT4、ExdⅡCT4 |
| Working Duty | A3 |
Introduction
Explosion-proof Overhead Crane is a material handling equipment specially customized for high temperature and electric spark environments.
The main material lifting equipment is a specially customized explosion-proof electric hoist;
Explosion-proof electric hoists are used in the material handling process when the surrounding environment produces an explosive mixture of combustible gas, dust, and air, explosion-proof is a very important preventive measure to ensure personal safety and various production, storage, and material handling systems Safety.
What can we offer you?
WeiHuaCrane can provide you with explosion-proof overhead cranes with a capacity of 1ton~20ton, a span of 7.5m~31.5m, and a lifting height of 3m~30m.
If these cannot meet your requirements, we can also design and manufacture an Explosion-proof Overhead Crane that meets your needs according to your needs.
The main purpose of Explosion-proof Overhead Cranes?
Explosion-proof electric hoists can be used in environments with fire or explosion hazards, such as petroleum production, gas stations, oil depots, natural gas collection, chemical processing, military factories, distribution plants, ore mining, electronics production, railway construction, etc.; When you are working, friction and collision will not produce mechanical sparks, which can effectively prevent fire accidents.
Features
- Simple structure，strong rigidity.
- Good in usability, easy to manufacture.
- Normal speed or frequency control, stable traveling.
- The explosion-proof form is ExdExplosion-proof mark is ExdⅡBT4 or ExdⅡCT4，temperature group is T1—T4 inflammable gas, explosive gas of steam and air mixture
- Motor and other electrical parts should be chosen according to the explosion class.
- The manufacture and inspection of Explosion-proof motor electrical parts should be according to GB3836.2-2000
In electrical and safety engineering, hazardous locations (HazLoc, pronounced haz·lōk) are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible or flammable. Electrical equipment installed in such locations could provide an ignition source, due to electrical arcing, or high temperature. Standards and regulations exist to identify such locations, classify the hazards, and design equipment for safe use in such locations.
Please check Wikipedia for the introduction of explosion-proof international standards
WeiHuaCrane Advantages
Application Scenarios
Explosion-proof electric hoists can be used in environments with fire or explosion hazards, such as petroleum production, gas stations, oil depots, natural gas collection, chemical processing, military factories, distribution plants, ore mining, electronics production, railway construction, etc.; When you are working, friction and collision will not produce mechanical sparks, which can effectively prevent fire accidents.
Chemical industry, waste treatment station, combustible gas supplier, metal processing company, wood processing company, paint shop, pharmaceutical industry, food industry, oil refinery, etc.
Main Structure and Feature
Explosion-proof Single Girder Overhead Crane mainly composed of metal structure(main girder, end truck); explosion-proof electric wire rope hoist(lifting mechanism); traveling mechanism and electrical equipment.
Metal structure
- Main girder is welded by high quality I-beam and one time molding,stamping U-slots, or welded by steel plate of box beam.
- Steel quality is Q235B or Q345B(international Fe37 or Fe52).
- The end truck is welded by rectangular tube or high quality steel plate.
- The main girder and end truck is contacted by hanging panel or half sit half hanging bolts, easy to transport.
- There are holes left for installation on the main girder, easy to assemble.
- On each end of the main girder equipped with Polyurethane buffer, to ensure the safe traveling of hoists.
Explosion-proof electric wire rope hoist
Mainly composed of lifting, traveling mechanism, and electrical parts.
Lifting mechanism
- Lifting motor
- Reducer
- Drum
- Coupling
- Wire rope
- Hook device
Traveling mechanism
- Electric trolley
- Operating motor
For more information about explosion-proof electric hoists, you can view the product.
Crane traveling
- Adopts separate driving, moving on the rails on both sides of span, install one driving wheel and one driven wheel, every driving wheel has one set of driving devices.
- Driving device is made up of tapered rotor motor, reducer, explosion-proof wheels, also can adopts trinity drive, adjustment is simple and quick.
- Compact structure, good-looking, small size, light weight.
- Traveling stably, braking effectively, long-life service.
Electrical parts
- The conductor of crane is cable.
- Lifting and crane traveling can be controlled separately or working at the same time.
- Composed of galvanized slide rail and cable pulley, sliding stably.
- The electrical appliance adjusts speed without contact or spark module.
- Traveling, lifting, starts are very stable.
- The layout of control box is reasonable, easy maintenance.
Protection
- Outside cranes equipped with lifting mechanism, control box and rainproof for driving mechanism.
- Equipped with overload alarm, prevent the hook clashing the top.
- Install buffer block for crane.
- With sound and light alarm devices.
- Other protections
Control ways
Push Button Pendants and Radio Controls
Explosion-proof Overhead Crane Parameters Table
| Capacity | Span | Lifting height | Lifting speed | Trolley speed | Crane speed | Track type |
| S(m) | m | m/min | m/min | m/min | ||
| 1 ton | 7.5~31.5 | 6~30 | 8(0.8/8) | 20(30) | 20(30) | P18 |
| 2 tons | 7.5~31.5 | 6~30 | 8(0.8/8) | 20(30) | 20(30) | P18 P24 |
| 3 tons | 7.5~31.5 | 6~30 | 8(0.8/8) | 20(30) | 20(30) | P24 |
| 5 tons | 7.5~31.5 | 6~30 | 8(0.8/8) | 20(30) | 20(30) | P24 |
| 10 tons | 7.5~31.5 | 9~30 | 7(0.7/7) | 20(30) | 20(30) | P24 P30 |
| 16 tons | 7.5~31.5 | 9~30 | 3.5(0.35/3.5) | 18 | 20(30) | P30 P38 |
| 20 tons | 10.5~31.5 | 6~16 | 4.2 | 20.5 | 19 | P43 |
| 32 tons | 10.5~31.5 | 6~18 | 4.1 | 20 | 17 | P43 QU70 |
| 50 tons | 10.5~31.5 | 6~16 | 3 | 19.1 | 19.4 | QU80 |
| 75 tons | 10.5~31.5 | 6~20 | 1.9 | 10.5 | 15.4 | QU100 |
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