QBE Double-Trolley Explosion-Proof Overhead Crane
For hazardous-area projects that need two lifting points, independent trolley use or coordinated tandem handling of long and complex loads.
Henan Mine Crane qbe double-trolley explosion-proof crane showing the crane structure and lifting arrangement.
The QBE double-trolley explosion-proof overhead crane combines hazardous-area protection with two trolley systems on one bridge. It is intended for explosive gas or dust environments and can use hooks or specialized lifting attachments.
For procurement, the buyer must define both the hazardous-area specification and the two-trolley lifting logic. The source confirms independent or combined trolley operation and identifies encoder and CI-card inverter technology in the double-trolley control system.
Quick Specifications
| Product Model |
QBE |
| Type-Test Product Name |
Explosion-Proof Bridge Crane |
| Lifting Mechanism |
Two explosion-protected trolley lifting systems |
| Lifting Capacity |
Configured according to project requirements |
| Span |
Configured according to runway center distance |
| Lifting Height |
Configured according to workshop / process requirements |
| Working Duty |
Selected from load spectrum and operating frequency |
| Explosion Protection |
Configured according to the approved hazardous-area specification |
| Control Method |
Configured according to project requirements |
Best For: For hazardous-area projects that need two lifting points, independent trolley use or coordinated tandem handling of long and complex loads.
Request A QBE Double-Trolley Explosion-Proof Crane Quote
Product Overview
Explosion-proof bridge crane designed for operating environments containing explosive gas or dust.
Source lists chemical, petroleum, natural gas, pharmaceutical and dust workshops as typical applications.
Supports cabin operation, pendant / handle control, wireless remote control and PLC linked control.
For a new purchase, any capacity, span, speed, duty, clean-class or explosion-protection value that is not published on the source page should be confirmed from the actual project rather than copied from a similar crane model.
Why Choose QBE Double-Trolley Explosion-Proof Crane?
Two Trolleys in Hazardous Areas
The crane supports two lifting points while maintaining an explosion-protected crane platform.
Independent or Combined Operation
Each trolley can work separately or the two can operate together.
Encoder / Inverter Coordination
Source-confirmed encoder and CI-card inverter technology supports double-trolley control.
Multiple Operator-Control Modes
Cabin, pendant/handle, wireless remote and PLC linked control are all source-listed.
Mechanical + Electrical Explosion Protection
Protection measures address both mechanical key components and the electrical system.
Product Images
Additional source product view of the QBE Double-Trolley Explosion-Proof Crane and its explosion-protected lifting arrangement.
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Additional source product view of the QBE Double-Trolley Explosion-Proof Crane and its explosion-protected lifting arrangement.
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Source gallery image associated with the QBE Double-Trolley Explosion-Proof Crane product page, showing an industrial installation or application reference.
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Source gallery image associated with the QBE Double-Trolley Explosion-Proof Crane product page, showing an industrial installation or application reference.
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Source gallery image associated with the QBE Double-Trolley Explosion-Proof Crane product page, showing an industrial installation or application reference.
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Source gallery image associated with the QBE Double-Trolley Explosion-Proof Crane product page, showing an industrial installation or application reference.
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Main Crane Components
| Bridge Structure |
Explosion-proof overhead bridge carrying two trolleys. |
| Two Explosion-Protected Trolleys |
Two lifting systems for independent or coordinated work. |
| Encoder / CI-Card Inverter Control |
Source-confirmed control technology for double-trolley operation. |
| Multi-Mode Operator Controls |
Cabin, pendant/handle, wireless remote or PLC linked control. |
| Explosion-Protected Mechanical / Electrical Systems |
Configured to the approved project classification. |
Technical Parameters
| Model |
QBE |
| Product Type |
QBE Double-Trolley Explosion-Proof Overhead Crane |
| Type-Test Product Name |
Explosion-Proof Bridge Crane |
| Lifting Mechanism |
Two explosion-protected trolley lifting systems |
| Capacity |
Project-specific |
| Span |
Project-specific |
| Lifting Height |
Project-specific |
| Hoisting / Travel Speed |
Project-specific unless explicitly stated by the source |
| Working Duty |
Project-specific |
| Control Method |
Project-specific; source-confirmed options are listed where applicable |
| Explosion-Protection Grade |
Project-specific; must match the buyer's approved hazardous-area classification |
| Power Supply |
According to site electrical conditions |
| Installation / Building Interface |
According to workshop, runway and crane configuration |
Source-Confirmed Features & Buyer-Defined Options
Source-confirmed product facts:
- Explosion-proof bridge crane designed for operating environments containing explosive gas or dust.
- Source lists chemical, petroleum, natural gas, pharmaceutical and dust workshops as typical applications.
- Supports cabin operation, pendant / handle control, wireless remote control and PLC linked control.
- Double-trolley control uses encoders and CI-card inverter technology according to the source.
- Two trolleys can be used independently or in combined operation.
- Mechanical key components and the electrical system use explosion-protection measures.
Buyer-defined items for quotation:
- Approved hazardous-area / explosion-protection specification
- Capacity and load type
- Per-trolley load, lifting-point spacing and synchronization requirements
- Span and lifting height
- Runway length / building layout
- Operating frequency and duty
- Control method
- Safety / warning / interface requirements
- Installation and commissioning scope
Application Scenarios
| Long Loads in Hazardous Areas |
Two-point lifting of long equipment or fabricated components. |
| Chemical / Petroleum Plants |
Tandem or independent lifting in classified production areas. |
| Natural Gas Facilities |
Hazardous-area equipment handling with two trolley positions. |
| Pharmaceutical / Dust Workshops |
Two-point lifting where classified conditions require explosion protection. |
How to Select the Right QBE Double-Trolley Explosion-Proof Crane
1. Define Hazardous-Area Requirements
Provide the approved classification, hazardous medium, group, temperature data and governing standard.
2. Define Total Load and Load per Trolley
Provide the total suspended load and the maximum load carried by each trolley.
3. Provide Load Geometry and Lifting-Point Spacing
Long-load handling requires the component dimensions, center of gravity and pick-point locations.
4. Define Independent vs Coordinated Operation
Explain which jobs use one trolley and which require both trolleys.
5. Define Synchronization and Control Mode
State allowable hook-height difference / load tilt and whether cabin, pendant, wireless or PLC-linked control is required.
Explosion-Proof Specification: What Buyers Must Confirm
- Approved hazardous-area classification / zone or division system
- Hazardous gas, vapor or combustible-dust material
- Gas / dust group where required
- Temperature class or maximum surface-temperature requirement where required
- Applicable local / project explosion-protection standard
- Ambient temperature, humidity, corrosion and dust conditions
- Which crane electrical and mechanical components fall inside the classified area
Procurement note: The source confirms explosion-proof capability for the product, but does not publish one universal protection grade. The purchase specification should state the approved hazardous-area data so the correct configuration can be selected and accepted.
Double-Trolley Lifting: What Buyers Must Confirm
| Total Suspended Load |
Include the load, rigging, lifting beam and both trolley attachments. |
| Maximum Load Per Trolley |
Each trolley may see a different load because of center-of-gravity position. |
| Lifting-Point Spacing |
Defines the trolley working range during tandem handling. |
| Allowable Height Difference / Load Tilt |
Needed to define the synchronization requirement. |
| Independent vs Coordinated Tasks |
State which production jobs use one trolley and which require both. |
| Control Mode |
Select cabin, pendant/handle, wireless remote or PLC linked control according to process needs. |
Safety & Control: What Buyers Should Confirm
- Rated-capacity and overload-protection requirements
- Upper / lower hoisting and travel limits
- Brake and emergency-stop requirements
- Explosion-protected electrical and mechanical components required by the classified area
- Operator control position and visibility
- Anti-collision, warning, synchronization or process-interface requirements where applicable
- Factory / site acceptance and load-test requirements
Installation & Maintenance
Before manufacture and installation, confirm runway span, rail or runway-beam condition, elevation, straightness, available headroom, electrical supply and erection access. The hazardous-area boundary and equipment classification should also be confirmed before final electrical selection.
Maintenance should follow the final supplied crane manual and the plant's hazardous-area procedures. Routine inspection should cover hoisting mechanisms, brakes, ropes, hooks or attachments, wheels, drives, fasteners, limits, seals and explosion-protected electrical components. Clean explosion-proof cranes also require cleaning and inspection procedures that preserve contamination-control performance.
What Information Do We Need for a Quote?
| 1 |
Approved hazardous-area classification |
| 2 |
Hazardous medium / group / temperature requirement |
| 3 |
Total maximum suspended load |
| 4 |
Maximum load per trolley |
| 5 |
Load dimensions / center of gravity |
| 6 |
Lifting-point spacing |
| 7 |
Required synchronization / allowable tilt |
| 8 |
Span |
| 9 |
Lifting height |
| 10 |
Runway length |
| 11 |
Preferred control mode / PLC interface |
| 12 |
Workshop drawing / power supply / destination |
Frequently Asked Questions
Can the two trolleys operate independently?
Yes. The source explicitly states that the two trolleys can be used independently or together.
What control methods are available on the source product?
Cabin operation, pendant/handle control, wireless remote control and PLC linked control are all listed.
What information is required for synchronized lifting?
Provide load geometry, lifting-point spacing, center of gravity and the allowable difference between the two lifting points.
What explosion-proof grade is used?
The source does not publish one universal grade. The final specification must be matched to the buyer's approved hazardous-area classification.
Related Explosion-Proof Overhead Cranes
LHB Explosion-Proof Electric Hoist Overhead Crane
QB Explosion-Proof Overhead Crane
ZJJB Clean Explosion-Proof Overhead Crane
Request A QBE Double-Trolley Explosion-Proof Crane Quote
Send your hazardous-area classification together with lifting capacity, span, lifting height, runway length, workshop drawing, operating cycle and control requirements. Henan Mine Crane engineers will review both the lifting duty and the explosion-protection requirements before preparing a project-specific configuration and quotation.
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