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Double Girder Heavy Duty Ladle CraneCategory—General Industrial Crane -
L typed Single Girder Hoist Gantry Crane with a hoistCategory—General Industrial Crane -
Partial Hang Single Girder Overhead CraneCategory—General Industrial Crane -
Hook Double Girder Overhead CraneCategory—General Industrial Crane
Engineered for superior performance in hazardous environments, the QB Explosion-Proof Overhead Crane integrates advanced safety mechanisms with precision engineering. Its construction adheres to stringent international standards, including GB3836.2 and JB/T5897, ensuring reliable operation in explosive atmospheres containing gases or vapors classified under groups IIB and IIC, with ignition temperatures not below T4. Certified for Zone 1 and Zone 2 hazardous areas, this crane is equipped with flame-proof motors and electrical components rated Exd II BT4 and Exd II CT4.
Key operational parameters include a dual-speed hoisting mechanism via pole-changing technology, complemented by inverter-controlled trolley and bridge movements for smooth and accurate load handling. All electrical enclosures achieve a minimum IP55 rating, while F-class insulation and B-class temperature rise ratings extend motor longevity. An integrated electronic overload protector with an audible alarm and thermal monitoring via PTC thermistors further enhances operational safety.
The crane features an asbestos-free brake lining that engages automatically during power loss, alongside noise levels under 85 dB(A) at full capacity. Designed for ground-based control with an optional cabin operation mode, it incorporates multiple safety components such as travel limit switches, anti-collision systems, emergency stop functions, and motor overload protection. Built to GB/T3811 and GB6067 design codes, this explosion-proof crane delivers durability and security in high-risk industrial settings.
Designed for high-risk industrial settings, the QB Explosion-Proof Double Girder Overhead Crane delivers safe lifting performance where flammable gases, vapors, or combustible dust may be present. It is certified for use in Zone 1 and Zone 2 hazardous locations, with explosion-proof ratings suitable for gas groups IIB and IIC and ignition temperature class T4.
Typical Applications:
Oil & Gas Refineries
Ideal for lifting pipelines, valves, and reactor modules in areas where hydrocarbon vapors pose ignition risks. The crane’s flame-proof electrical system and non-sparking running wheels ensure safe operation near processing units or storage zones.Chemical and Petrochemical Plants
Supports the movement of reactors, mixing vessels, and chemical drums in environments exposed to solvents, monomers, or other volatile substances. All motors and controls are enclosed to prevent ignition from electrical sparks.Paint and Coating Manufacturing Facilities
Enables safe handling of flammable solvents, resins, and finished products. The crane’s enclosed hoist and trolley mechanisms minimize exposure to explosive atmospheres commonly found in mixing or filling areas.Gas Processing and Power Generation Plants
Used for maintaining turbines, compressors, and boiler components in LNG plants or syngas facilities. Built-in thermal and overload protection adds an extra layer of safety during critical lifts.Pharmaceutical and Cosmetic Production
Suitable for areas where alcohol-based compounds or aerosol propellants are used. The crane’s low-noise operation and precise inverter control allow smooth transport of sensitive production equipment.Grain Processing and Storage Facilities
Engineered for environments with combustible dust. The crane’s enclosed components and anti-ignition design reduce risks when operating in silo areas or milling sections.
Equipped with non-sparking stainless steel or nylon wheels, F-class insulated motors, and IP55-rated enclosures, this explosion-proof crane meets GB3836.2 and JB/T5897 standards. It offers flexible control via ground-operated pendant or integrated cabin, delivering both safety and performance across hazardous industrial applications.
