General purpose overhead crane
QB Explosion proof Overhead Crane
Product advantages
- The explosion-proof performance of all motors and electrical appliances of QB type explosion-proof hook bridge crane complies with GB3836.2-2000 “Explosion proof Electrical Equipment for Explosive Gas Environments Part 2: Explosion proof Type” d “”, and the overall performance complies with the provisions of JB/T5897-2006 “Explosion proof Bridge Crane” standard. It has been inspected by a national designated explosion-proof product inspection unit and obtained the “Explosion proof Certificate”.
The explosion-proof signs are Exd Ⅱ BT4 and Exd Ⅱ CT4. - This product is suitable for use in factories where the explosive transmission capacity is not higher than Class IIB or Class IIC, and the ignition temperature group is T1-T4 for flammable gases or vapors that form explosive gas mixtures with air. It is suitable for use in hazardous areas of Zone 1 or Zone 2 (see GB3836.2-2000 for details).
- The working level of this product is intermediate.
Application scenarios
- Petrochemical Industry
- Used in refineries, chemical plants, and fertilizer plants where methane, ethylene, hydrogen, or other flammable gases are present.
- Handles raw material transport, equipment maintenance, and replacement of large reactors or heat exchangers.
- Natural Gas & Coal Chemical Plants
- In gas purification units, coal gasification workshops, and coal-to-chemical production lines, for lifting and transporting equipment or components that may contain flammable gases.
- Military & Explosion-proof Warehousing
- Applied in ammunition depots, explosives storage facilities, and weapon assembly workshops for safe handling of explosives, detonators, and other sensitive materials.
- Pharmaceutical & Fine Chemical Plants
- Suitable for facilities using flammable solvent vapors such as ethanol, acetone, or toluene.
- Used for handling reaction tanks, mixers, semi-finished products, and process equipment.
- Dust Explosion Hazard Areas
- In flour mills, feed plants, wood processing factories, and aluminum/magnesium powder workshops where combustible dust concentration is high.
- Lifts raw material bags, semi-finished goods, and machinery while avoiding ignition sources.
- Energy & Metallurgy
- Used in coking plants, coal liquefaction facilities, and fuel handling systems of power plants for equipment installation and material transportation.
Product specifications and dimensions
| Lifting Weight(t) | 5–50/Customized | ||
| Span(m) | 10.5–31.5 | ||
| Max Lifting Height | main | 12m | |
| aux | 14m | ||
| Working class | A3–A4 | ||
| Speed | Lifting | main | 1.9 |
| aux | 3.7 | ||
| Traveling of crab | 8.9 | ||
| Traveling of trolley | 12.5/12.6 | ||
| Motor | Lifting | main | YBZE225M-8/22KW |
| aux | YBZE225M-8/22KW | ||
| Total weight | Crab | 15.42t | |
| Cabin | 35.3–64.9 | ||
| Ground | 36.4–63.5 | ||
| Max wheel pressure | 333–450 | ||
| Steel track recommended | QU80 FANGGANG100 | ||
| Power source | 3 phase,380v,50v | ||
FEATURES AT A GLANCE
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.
FAQ
1. What’s the information should I provide when inquiry?
More details or drawings, better. A: Lift capacity B: Crane arm length C: lift height: hook travel distance D: What material to lift E: power source or other specials you give us will be more appreciated.
2. How many operating methods for my selection?
Standard operating methods: A: pendent controller with push buttons .B: remote control with push buttons. Choose any type as you like.
3. Can this type work in hazardous environment?
Sure! We can customize for you, acid proof or explosion proof, no problem for that.
4. What about warranty time ?
12 months.
5. How can we install the crane? Our senior engineer can be your side to do the installation guide service and training.
6. May I visit your factory?
Of course. We can pick you up at train station, high-speed rail station or airport, and book hotel for you.
