LB Series Single Girder Explosion Proof Overhead Crane
Product Introduction
The LB series single girder explosion proof crane delivers
safe lifting solutions for hazardous environments. Furthermore, this small and light overhead crane incorporates explosion-proof electric hoists and electrical equipment manufactured according to international standards. The crane handles loads from 1 to 20 tons with
A3 or A4 working classifications.
Technical Specifications
The LB series offers comprehensive performance capabilities:
| Capacity (t) |
1 |
2 |
3 |
5 |
10 |
16 |
20 |
| Span (m) |
7.5-28.5 |
7.5-28.5 |
7.5-28.5 |
7.5-28.5 |
7.5-28.5 |
7.5-28.5 |
7.5-28.5 |
| Lifting Height (m) |
6-18 |
6-18 |
6-18 |
6-18 |
6-18 |
6-18 |
6-18 |
| Lifting Speed (m/min) |
0.8/8 |
0.8/8 |
0.8/8 |
0.8/8 |
0.7/7.8 |
0.6/6 |
0.42/4.2 |
| Trolley Speed (m/min) |
20/30 |
20/30 |
20/30 |
20/30 |
20/30 |
20/30 |
20/30 |
| Crane Speed (m/min) |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
| Work Duty |
A3-A4 |
A3-A4 |
A3-A4 |
A3-A4 |
A3-A4 |
A3-A4 |
A3-A4 |
| Explosion Grade |
ExdⅡBT4/CT4 |
ExdⅡBT4/CT4 |
ExdⅡBT4/CT4 |
ExdⅡBT4/CT4 |
ExdⅡBT4/CT4 |
ExdⅡBT4/CT4 |
ExdⅡBT4/CT4 |
| Track Type |
P24 |
P24 |
P24 |
P24 |
P24/P38 |
P24/P38 |
P24/P38 |
Main Components
The single girder explosion-proof overhead crane combines several essential systems. First, the crane traveling mechanism enables smooth movement along the runway. Additionally, the electrical system controls all operations safely. The bridge structure supports the entire assembly, while the explosion-proof electric hoist handles vertical lifting duties.
Application Areas
Industrial Environments
LB series cranes serve multiple industrial sectors effectively. These cranes perform maintenance and loading tasks in machinery workshops with hazardous materials. Moreover, warehouses use them for safe material handling in potentially explosive atmospheres. Stockyards benefit from their reliable outdoor operation capabilities. Similarly, hydropower stations employ these cranes for equipment maintenance in challenging conditions.
Hazardous Zone Classifications
The explosion-proof grades ExdⅡBT4 and ExdⅡCT4 enable safe operation in specific environments. Zone 1 and Zone 2 hazardous areas accommodate gas-related explosion risks. Additionally, Zone 21 and Zone 22 cover dust explosion hazards. The equipment suits factories with IIB and IIC low initiation capacity, handling T1-T4 ignition temperature classes.
When operating indoors at 40°C, relative humidity must stay below 50%. However, outdoor operations at 25°C allow temporary humidity levels up to 100%.
Key Advantages
The LB explosion-proof crane provides multiple operational benefits:
- Reasonable design creates strong explosion-proof capability
- Good structure delivers excellent rigidity for stable operation
- Speed converter ensures smooth, controlled movements
- High safety standards guarantee reliable performance
System Features
Mechanical System
Q235B or Q345B high-quality materials construct the main structure. Superior steel plates form welded rectangular tube legs for stability. Furthermore, manufacturers offer trinity-drive systems or traditional motor-drive reducers. These designs ensure smooth movement, effective braking, and extended service life.
Electrical System
Operators can control electric hoists and cranes independently or simultaneously. The power supply uses flat cables, special cables, galvanized tracks, and cable pulleys. Consequently, the system moves smoothly while maintaining an attractive appearance.
Safety Measures
Multiple protection systems safeguard operations:
- Overload protection prevents exceeding capacity
- Height limit switches stop dangerous overtravel
- Speed limit switches transition from fast to slow before stopping
- Buffer devices protect hoist trolley and crane bridge
- Lockable mains isolator secures runway ends
- Warning indicators include anti-collision devices, flashing lights, and sounds
- Motors feature temperature control with Class F insulation
- Self-adjusting twin disc brakes use asbestos-free materials
- Anti-derailment devices employ non-sparking designs
- Wheels and hooks use anti-sparking materials
Purchasing Considerations
Selection Guidelines
Buyers must choose appropriate models based on specific working conditions. Generally, these cranes operate indoors between -20°C and 40°C. Air pressure should range from 0.08 MPa to 0.11 MPa. Furthermore, environments require good ventilation for safe operation.
Critical Components
The lifting mechanism needs two supporting brake sets with appropriate explosion-proof grades. All crane parts must meet or exceed the whole machine’s explosion-proof level and temperature group. Wire rope devices require anti-static material protection for safety.
Buffers must use specified polyurethane or rubber materials. Surface resistance cannot exceed 10^9Ω. Without proper buffers, the system loses essential protection.
Electrical Requirements
Large and small trolleys require flexible cable power feeding. Rubber-sheathed copper core multi-strand cables connect electrical equipment. Moreover, power supply cables must include grounding core wires.
Wiring uses copper-core rubber-sheathed cables without middle joints. If necessary, installers add explosion-proof junction boxes. Power boxes must match the crane’s explosion-proof level and temperature group.
Professional Explosion-Proof Solutions
Need reliable
single girder explosion-proof cranes for your facility? Our technical team provides comprehensive support for hazardous area lifting requirements.
Services include:
- Free technical consultation
- Custom crane configuration
- Professional installation
- Safety training programs
- Maintenance support
Email:
[email protected]
Hotline: +8615993097180
WhatsApp/Skype: +8615993097180
Contact us today for your customized explosion-proof crane solution!
LB Series Single Girder Explosion Proof Crane: Practical FAQs for Buyers and Operators
How Does the LB Series Crane Ensure Safety in Explosive Environments?
Built for Hazardous Areas
The LB Series single girder explosion proof crane is engineered for safe operation in dangerous environments like Zone 1, Zone 2, Zone 21, and Zone 22. Its ExdⅡBT4/CT4 explosion-proof rating ensures compatibility with flammable gas and dust settings, covering IIB/IIC classifications and T1-T4 temperature groups.
Unique Safety Features
- Non-Sparking Components: Wheels, hooks, and buffers use materials to prevent sparks, critical for hazardous area lifting.
- Dual Braking Systems: Two brake sets on the lifting mechanism enhance safe operation under heavy loads.
- Environmental Adaptability: Operates reliably indoors at 40°C (humidity <50%) or outdoors at 25°C (up to 100% humidity temporarily).
What Makes the LB Series Crane Cost-Effective for Industrial Use?
Optimized Design for Efficiency
The single girder crane offers a compact, lightweight structure with 1-20 ton lifting capacity, making it a cost-effective choice for small to medium-sized facilities. Its Q235B/Q345B steel construction ensures durability without excessive material costs.
Operational Savings
- Smooth Movement: Trinity-drive or motor-reducer systems reduce energy consumption and wear.
- Low Maintenance: Self-adjusting brakes and robust electrical systems minimize downtime.
- Flexible Configurations: Spans of 7.5-28.5 meters and lifting heights of 6-18 meters adapt to various industrial lifting solutions without over-investment.
How to Choose the Right LB Series Crane for Your Facility?
Matching Crane to Worksite Needs
Selecting the correct explosion-proof overhead crane depends on your specific operational requirements:
- Load Requirements: Assess whether your tasks need 1-ton or up to 20-ton capacity.
- Worksite Conditions: Ensure the crane’s A3-A4 work duty aligns with your operation frequency (moderate to intensive).
- Environmental Factors: Verify ventilation, temperature (-20°C to 40°C), and air pressure (0.08-0.11 MPa) compatibility.
Customization Options
- Track Selection: Choose P24 for lighter loads or P38 for heavier models.
- Control Systems: Opt for independent or simultaneous hoist and crane control based on workflow.
- Outdoor Use: Confirm weatherproofing for stockyards or open-air applications.
What Are Common Operational Challenges and Solutions?
Addressing Real-World Issues
Operating a single girder explosion-proof crane in hazardous environments can present challenges. Here’s how the LB Series addresses them:
Challenge: Ensuring Consistent Safety
- Solution: Anti-collision devices, flashing lights, and audible warnings enhance operator awareness. Regular safety training programs ensure compliance with protocols.
Challenge: Electrical Reliability
- Solution: Use of rubber-sheathed copper core cables without middle joints and explosion-proof junction boxes ensures stable power delivery.
Challenge: Component Wear in Harsh Conditions
- Solution: Anti-static wire ropes and polyurethane/rubber buffers with <10^9Ω surface resistance extend component life.
How to Maximize the Lifespan of Your LB Series Crane?
Maintenance Best Practices
To ensure long-term reliability of your explosion-proof crane:
- Regular Inspections: Check brakes, limit switches, and buffers for wear, especially in dangerous environments.
- Professional Support: Leverage maintenance support services for timely repairs and part replacements.
- Operator Training: Use safety training programs to prevent misuse and reduce wear on critical components like motors and hoists.
Component Care
- Motors: Monitor Class F insulation and temperature controls to prevent overheating.
- Cables: Inspect grounding wires and flexible cables for integrity, especially in outdoor setups.
Why Choose Our LB Series Crane Solutions?
Comprehensive Support for Your Needs
Our team offers end-to-end services to ensure your industrial lifting solutions are safe and efficient:
- Expert Consultation: Free guidance on selecting the right single girder crane for your facility.
- Tailored Configurations: Customize span, capacity, and control systems to match your workflow.
- Installation and Training: Professional setup and operator training for seamless integration.
For inquiries or to request a customized explosion-proof crane solution:
