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Explosion Proof Double Girder Overhead Crane
Capacity:
5~50t, According to your demands
Lifting Height:
18m, According to your demands
Span:
31.5m, According to your demands
Voltage/Hertz:
According to your demands
Working Class:
A3,A4
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Apply: This product is suitable for areas where the explosion.
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Lifting Height:
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Working Class:
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Product Overview

Explosion-proof performances of all motors and electric components of QB explosion-proof crane satisfy standards stipulated by GB3836.2 Explosion-proof Electric Equipment Working in Explosive Gas Envircmment Part2: Flame-proof Type"D",and the performance of the crane satisfies demands in JB/T5897 Explosion-proof Crane. 


The crane has obtained Explosion-proof Certificate after passing examinations by units designated by the government to test explosion-proof products. The explosion-proof marks are Exd II BT4 and Exd II CT4 respectively. This product is suitable for areas where the explosion,transmission is not higher than ll B or ll C and the ignition temperature group of inflammable gas or explosive mixture of steam and gas is not lower than T4. Applicable dangerous zones are zone 1 and zone 2(please refer to GB3836.1 for details). This product is generally controlled on the ground,but control from the driver' s cabin is also allowable.


Main Features

1. Minimum IP55 for electrical enclosure

2. All crane motors are equipped on the overhead crane with insulation class F and Temperature Rise Class B to provide a longer operational life span

3. Electronic overload protection c/w warning horn.

4. Noise level below 85 dB(A) at full load

5. Two speed control via pole changing for the hoisting motion, inverter control for trolley and bridge motion for smooth and precise operation.

6. Thermal protection for pole-changing and 3 PTC thermistors for inverter drive.

7. Crane rake with asbestos-free lining which activates automatically in case of power failure.


Explosion Proof Crane Design Standard:

1. Design rules for cranes GB/T3811-2008

2. Safety rules for lifting appliances GB6067.1-2010

3. Explosion-proof bridge cranes JB/T5897-2006

4. Explosion-proof beam crane JB/T10219-2011

5. Explosive gas environment used electrical equipment part 1: General requirement

6. Explosive gas environment used electrical equipment part 2. Flame-proof type”d”


Safety is the most important issue for cranes. 

Our safety device for QB type overhead crane: overload limiter, limit switch (lifting and traveling), interlock protection device, buffer, overhaul cage, rail clear plate, protective cover, bus bar prevent plate, anti-collision device, main isolating switch, emergency stop system, motor overload protection, and others you required.



Application Scenario

This product is suitable for areas where the explosion. transmission is not higher than Il B or Il C and the ignition temperature group of inflammable gas or explosive mixture of steam and gas is not lower than T4. Applicable dangerous zones are zone 1 and zone 2.


QB Double girder overhead crane use stainless steel or nylon crane wheels to avoid the flame by friction. Besides, all the components in electrical system is of high safety by conforming to national and international standards. Henan Mine explosion overhead crane is provided with the highest level of safety, quality and reliability, which is required for hazardous environments such as oil refineries, petrochemical, paint industries, gas power plants etc.


Product Application Scenarios for Explosion Proof Double Girder Overhead Crane

The Explosion Proof Double Girder Overhead Crane is engineered specifically for operation in hazardous environments, where the risk of explosion is present. It is designed to be used in areas classified as Zone 1 and Zone 2, where explosive gases or vapor may occur. The crane is suitable for environments where the explosion transmission is classified as IL B or IL C, and where the ignition temperature group of flammable gas or explosive mixtures is rated at T4.


1. Oil Refineries

In oil refineries, the presence of flammable gases and vapors is a constant concern. The double girder overhead crane is capable of safely handling heavy loads, such as pipes, vessels, and other essential equipment. Its explosion-proof features ensure that operations can proceed without the risk of igniting an explosion, making it an invaluable asset in this high-risk industry.


2. Petrochemical Plants

Petrochemical facilities often deal with various chemicals and processes that can produce explosive atmospheres. The robust design of the explosion-proof crane, featuring stainless steel or nylon wheels, minimizes the risk of friction-induced flames. It allows for efficient material handling and transport of chemicals and large machinery, while maintaining strict safety standards.


3. Paint Industries

In paint manufacturing environments, flammable solvents and vapors are common. Our explosion-proof overhead crane is crucial for lifting and transporting raw materials and finished products without compromising safety. Its design ensures that operations can be conducted effectively, while adhering to regulatory requirements concerning fire and explosion hazards.


4. Gas Power Plants

Gas power plants, where combustible gases are generated and used, require equipment that meets stringent safety standards. The explosion proof double girder overhead crane provides the reliability and safety needed to handle heavy components, such as turbines and generators, in a controlled yet effective manner. Its compliance with national and international safety standards enhances operational confidence.


5. Chemical Warehouses

In warehouses handling combustible materials, the risk of explosions due to volatile compounds makes safety paramount. The overhead crane's design incorporates high safety standards, ensuring that the movement of goods is conducted in a secure manner. This ensures not only the safety of operators but also the integrity of sensitive materials being handled.


Conclusion

The Explosion Proof Double Girder Overhead Crane is a versatile and reliable solution for various hazardous environments, including oil refineries, petrochemical plants, paint industries, gas power plants, and chemical warehouses. It combines advanced safety features, compliance with rigorous standards, and the highest levels of quality, making it an essential tool for environments where safety from explosion hazards is a priority.

  • Explosion Proof Double Girder Overhead Crane
  • Explosion Proof Double Girder Overhead Crane
  • Explosion Proof Double Girder Overhead Crane
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