OVERHEAD CRANE
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Single Girder Overhead Crane
- LXB Type Explosion-proof Electric Single Girder Suspension Crane
- LX Electric Single-girder Suspension Crane
- LDZ Electric Single Girder Crane
- LDY Metallurgical Single Girder Crane
- LDP Type Electric Single Girder Overhead Crane
- LD Electric Single-girder Crane
- LB Type Explosion-proof Electric Single Girder Crane
- Flexible Suspension Single-girder Bridge Crane
- Single-girder Bridge Grab Crane
- Single Girder Hoist Overhead Crane
- SL Manual Single-girder Bridge Crane
-
Double Girder Overhead Crane
- QZ Grab Crane
- QD Double Girder Overhead Crane
- QC Electromagnetic Crane
- QB Type Explosion-proof Hook Bridge Crane
- LHB Type Explosion-proof Hoist Double Girder Crane
- Double-girder Bridge Casting Crane
- Four Girder Casting Crane
- Magnet Double Girder Overehad Crane
- Explosion-proof Double-girder Bridge Crane
- Double Girder Overhead Crane
- European Standard Crane
HOT PRODUCTS
QB Type Explosion-proof hook Bridge Crane
Authentication mark:
This crane is mainly used in chemical plants, oil refineries, paint workshops, gas production facilities, fireworks manufacturing, and other hazardous environments with explosive gases or dust.
Capacity:
1 t – 50 t (customizable)
Lifting Height:
6 m – 20 m (customizable based on building clearance)
Span:
7.5 m – 28.5 m customizable
Voltage/Hertz:
3 Phase 380V 50hz
Working Class:
A4, A5, A6
Explosion-proof Level:
Ex d IIB T4 / Ex d IIC T4 / Ex tD A21 IP65 T135°C (customizable based on hazardous zone classification)
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Introduction
Application Scenario
Advantages
Structural Diagram And Parameter Table
INTRODUCTION
What is this?
The QB type explosion-proof hook bridge crane is a specialized double-girder overhead crane designed for safe operation in hazardous environments where explosive gases, vapors, or combustible dust may be present. All electrical components including motors, controllers, limit switches, and control panels are enclosed in explosion-proof enclosures, preventing any sparks or high temperatures from igniting the surrounding atmosphere. If your facility handles flammable materials or operates in classified hazardous zones, this product is designed for you.
Why choose an explosion-proof bridge crane over a standard bridge crane in hazardous areas?
Compared to standard bridge cranes used in hazardous areas, the QB explosion-proof solution offers four core advantages:
First, guaranteed safety – all electrical components are certified explosion-proof, eliminating ignition sources and ensuring safe operation in Zone 1, Zone 2, or Zone 21, Zone 22 hazardous areas.
Second, spark-proof design – special materials and coatings on mechanical components such as traveling wheels and hook blocks prevent spark generation from friction or impact.
Third, temperature control – motor and electrical housings are designed to maintain surface temperatures below the auto-ignition temperature of surrounding gases or dust.
Fourth, regulatory compliance – fully certified to ATEX, IECEx, or GB standards, simplifying safety inspections and insurance requirements.
Ensure safe lifting operations in hazardous environments with certified explosion-proof protection.
What can we do for you?
We understand that every customer has different hazardous zone classifications, different explosive materials, and different capacity requirements. Therefore, we offer flexible customization options: explosion-proof levels from Ex d IIB T4 to Ex d IIC T4; temperature classes T1 to T6; dust explosion-proof Ex tD A21 for combustible dust environments; control options of explosion-proof pendant, remote radio, or cabin; VVVF speed control optional. Whether your hazardous area contains gasoline vapors, hydrogen gas, or aluminum dust, we can match the appropriate explosion-proof rating for your specific zone.
Unsure? Don't know?
Not sure what explosion-proof level your facility requires? Don't know what temperature class you need for your specific materials? No problem. Just tell us: your hazardous zone classification (Zone 1, Zone 2, Zone 21, Zone 22), the types of explosive materials present, and your required lifting capacity. Our engineers will provide you with an accurate quote and CAD drawings within 24 hours. Click the button below or contact us via WhatsApp/email to get your customized solution.
💡 Tip: We offer free selection consulting. Even if you are unsure about specific explosion-proof requirements, feel free to describe your hazardous environment and handling needs, and we will calculate for you.
The QB type explosion-proof hook bridge crane is a specialized double-girder overhead crane designed for safe operation in hazardous environments where explosive gases, vapors, or combustible dust may be present. All electrical components including motors, controllers, limit switches, and control panels are enclosed in explosion-proof enclosures, preventing any sparks or high temperatures from igniting the surrounding atmosphere. If your facility handles flammable materials or operates in classified hazardous zones, this product is designed for you.
Why choose an explosion-proof bridge crane over a standard bridge crane in hazardous areas?
Compared to standard bridge cranes used in hazardous areas, the QB explosion-proof solution offers four core advantages:
First, guaranteed safety – all electrical components are certified explosion-proof, eliminating ignition sources and ensuring safe operation in Zone 1, Zone 2, or Zone 21, Zone 22 hazardous areas.
Second, spark-proof design – special materials and coatings on mechanical components such as traveling wheels and hook blocks prevent spark generation from friction or impact.
Third, temperature control – motor and electrical housings are designed to maintain surface temperatures below the auto-ignition temperature of surrounding gases or dust.
Fourth, regulatory compliance – fully certified to ATEX, IECEx, or GB standards, simplifying safety inspections and insurance requirements.
Ensure safe lifting operations in hazardous environments with certified explosion-proof protection.
What can we do for you?
We understand that every customer has different hazardous zone classifications, different explosive materials, and different capacity requirements. Therefore, we offer flexible customization options: explosion-proof levels from Ex d IIB T4 to Ex d IIC T4; temperature classes T1 to T6; dust explosion-proof Ex tD A21 for combustible dust environments; control options of explosion-proof pendant, remote radio, or cabin; VVVF speed control optional. Whether your hazardous area contains gasoline vapors, hydrogen gas, or aluminum dust, we can match the appropriate explosion-proof rating for your specific zone.
Unsure? Don't know?
Not sure what explosion-proof level your facility requires? Don't know what temperature class you need for your specific materials? No problem. Just tell us: your hazardous zone classification (Zone 1, Zone 2, Zone 21, Zone 22), the types of explosive materials present, and your required lifting capacity. Our engineers will provide you with an accurate quote and CAD drawings within 24 hours. Click the button below or contact us via WhatsApp/email to get your customized solution.
💡 Tip: We offer free selection consulting. Even if you are unsure about specific explosion-proof requirements, feel free to describe your hazardous environment and handling needs, and we will calculate for you.
APPLICATION SCENARIO
[1] Chemical Plants – Lifting raw materials, chemical drums, reactors, and equipment in areas where flammable gases such as ethylene, propylene, or methanol vapors may be present.
[2] Oil Refineries – Handling maintenance of pumps, valves, heat exchangers, and heavy equipment in refining units with hydrocarbon gas hazards.
[3] Paint and Coating Workshops – Lifting paint drums, mixing tanks, spraying equipment, and finished products in areas with flammable solvent vapors.
[4] Gas Production Facilities – Moving equipment and materials in natural gas processing plants, hydrogen production facilities, or acetylene stations.
[5] Fireworks and Explosives Manufacturing – Handling raw materials and finished products in facilities with explosive dust or vapor hazards.
[6] Coal Chemical Plants – Lifting equipment and materials in coal gasification, methanol production, and other coal chemical processes with combustible gas risks.
[2] Oil Refineries – Handling maintenance of pumps, valves, heat exchangers, and heavy equipment in refining units with hydrocarbon gas hazards.
[3] Paint and Coating Workshops – Lifting paint drums, mixing tanks, spraying equipment, and finished products in areas with flammable solvent vapors.
[4] Gas Production Facilities – Moving equipment and materials in natural gas processing plants, hydrogen production facilities, or acetylene stations.
[5] Fireworks and Explosives Manufacturing – Handling raw materials and finished products in facilities with explosive dust or vapor hazards.
[6] Coal Chemical Plants – Lifting equipment and materials in coal gasification, methanol production, and other coal chemical processes with combustible gas risks.
ADVANTAGES
[1] Certified Explosion-proof – ATEX, IECEx, or GB certified for safe operation in hazardous zones.
[2] Spark-proof Mechanical Design – Special materials prevent sparks from friction or impact.
[3] Temperature Controlled – Surface temperatures maintained below ignition points of surrounding hazards.
[4] Regulatory Compliant – Meets international explosion-proof standards, simplifying safety inspections.
[5] Heavy Duty Construction – Double girder design with A6 duty cycle for continuous industrial use.
[6] Flexible Explosion-proof Ratings – Available for gas (Ex d IIB/IIC) or dust (Ex tD) environments.
[2] Spark-proof Mechanical Design – Special materials prevent sparks from friction or impact.
[3] Temperature Controlled – Surface temperatures maintained below ignition points of surrounding hazards.
[4] Regulatory Compliant – Meets international explosion-proof standards, simplifying safety inspections.
[5] Heavy Duty Construction – Double girder design with A6 duty cycle for continuous industrial use.
[6] Flexible Explosion-proof Ratings – Available for gas (Ex d IIB/IIC) or dust (Ex tD) environments.
STRUCTURAL DIAGRAM AND PARAMETER TABLE
| Parameter | Specification |
|---|---|
| Working Class | A4, A5, A6 |
| Capacity | 1 t – 50 t |
| Span | 7.5 m – 28.5 m |
| Lifting Height | 6 m – 20 m |
| Lifting Speed | Main hook: 4 – 10 m/min Auxiliary hook: 6 – 12 m/min |
| Trolley Travelling Speed | 35 – 45 m/min |
| Crane Travelling Speed | 20 – 50 m/min |
| Explosion-proof Level | Ex d IIB T4 / Ex d IIC T4 / Ex tD A21 (customizable) |
| Temperature Class | T1 – T6 (customizable) |
| Control Method | Explosion-proof pendant / Explosion-proof remote radio / Cabin with purge system |
| Power Supply | 380V / 50Hz / 3-phase |
| Temperature (Ambient) | -20°C to +50°C |
| Protection Grade | Motors: IP54 – IP65, Explosion-proof enclosure. Electricals: IP65 sealed |
| Suitable Zones | Gas: Zone 1, Zone 2 / Dust: Zone 21, Zone 22 |
| Girder Type | Double girder – box-section with non-sparking coating options |
Free Technical Consultation
