Product Overview
The LB type explosion-proof single-girder overhead crane is developed on the basis of the LD type single-girder crane. It is equipped with an explosion-proof electric hoist, and all motors and electrical components are provided with explosion-proof measures. The overall explosion-proof classification of the crane is typically Ex d IIB T4 or Ex d IIC T4, making it suitable for use in Zone 1 and Zone 2 explosive gas atmospheres as well as Zone 21 and Zone 22 combustible dust environments.
This crane features a compact structure and easy maintenance, and is widely used in military industry, chemical, petroleum, natural gas and other fields.
Product Specifications
| Capacity | t | 1 | 2 | 3 | 5 | 10 | 16 | 20 |
| Span | m | 7.5~28.5 | ||||||
| Lifting height | m | 6~18 | ||||||
| Lifting speed | m/min | 0.8/8 | 0.8/8 | 0.8/8 | 0.8/8 | 0.7/7 | 0.6/6 | 0.42/4.2 |
| Trolley speed | m/min | 20/30 | 20/30 | 20/30 | 20/30 | 20/30 | 20/30 | 20/30 |
| Crane speed | m/min | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Work duty | A3~A4 | |||||||
| Explosion-proof Grade | ExdⅡBT4,ExdⅡCT4 | |||||||
| Track type | P24 | P24 | P24 | P24 | P24/P38 | P24/P38 | P24/P38 | |
| Customizable to your specific requirements | ||||||||
Product Feature And Application
Features of Explosion-Proof Single Girder Overhead Crane
Full-machine explosion-proof performance With explosion-proof markings of Ex d IIB T4 or Ex d IIC T4, it can be directly used in hazardous areas with explosive gases and combustible dust.
Comprehensive safety protection All electrical equipment is fitted with flameproof enclosures. Mechanical components including hooks, wheels and wire rope drums adopt anti-friction spark measures to completely eliminate ignition sources.
Robust and compact structure It boasts high overall rigidity, light dead weight and stable operation, with a low headroom requirement, making it suitable for indoor explosion-proof environments.
Flexible operation modes It supports two operation modes: explosion-proof cable pendant control and explosion-proof wireless remote control, to meet different on-site operation demands.
Applications of Explosion-Proof Single Girder Overhead Crane
Petrochemical industry: Hazardous Zone 1 and Zone 2 areas with explosive gases, such as oil refining workshops and chemical plant zones.
Pharmaceutical and spray painting industry: Flammable and explosive environments with organic solvent vapors, such as pharmaceutical workshops and spray booths.
Grain processing and woodworking industry: Zone 21 and Zone 22 areas with combustible dust (e.g. flour, wood dust), such as grain processing plants and woodworking factories.
New energy and environmental protection industry: Scenarios with lithium dust and biogas, such as lithium battery production workshops and sewage treatment stations.
Warehousing and logistics: Warehouses and storage yards for flammable chemicals and hazardous chemical materials.
Production details
Hoisting Mechanism
BCD/BMD series explosion-proof electric hoist, with an explosion-proof rating of Exd II BT4 or Exd II CT4.
Crane Wheels
The traveling wheels of both the bridge and trolley are made of copper alloy or stainless steel, which prevents mechanical sparks caused by friction and impact.
Explosion-Proof Electrical Cabinet
It adopts a flameproof explosion-proof structure, with all electrical components fully enclosed inside the flameproof enclosure.
Control Modes
Two operation modes are available: explosion-proof cable pendant control and explosion-proof wireless remote control.
Certification
All our explosion-proof cranes are manufactured and tested in strict accordance with GB3836, JB/T5897 and international IECEx standards, with complete qualification certificates to ensure compliance with global hazardous area safety regulations.
FAQ
1. What are the most important parameters when selecting an explosion-proof single girder bridge crane?
Explosion-proof rating: It must match the type of gas/dust present on-site.
Duty class: A3-A4, must align with the actual frequency of use.
2. Can it frequently lift heavy loads?
No, it is not suitable. It is a light to medium-duty crane and is not intended for high-frequency continuous heavy-duty operations.
3. What should be noted during daily operation?
Before operation, confirm all explosion-proof components are intact and undamaged.
Avoid emergency starts and stops to prevent impact sparks.
4. Can a standard remote control be used for operation?
Absolutely not. A explosion-proof remote control must be used. Standard remote controls can generate electrical sparks that may cause an explosion.
5. Where is the core safety design of the explosion-proof single girder bridge crane reflected?
All electrical and mechanical components feature explosion-proof or non-sparking design.
Equipped with safety devices such as overload limiters, limit switches, and emergency stop buttons.
6. Can the LB explosion-proof single girder bridge crane be used in any explosion-proof zone of a chemical plant?
Not necessarily. It must precisely match the explosion-proof zone classification and cannot be used interchangeably.
Products Description
