LHB20-5t explosion-proof hoist double-beam bridge crane
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Product Introduction
Product Details
Explosion-proof Electric Hoist Bridge Crane is a special lifting equipment designed for flammable and explosive environments. It is widely used in petroleum, chemical, mining, military, pharmaceutical, and dust workshops where explosive gases or dusts exist. Its core feature is its explosion-proof performance, ensuring safe operation in hazardous environments. The following are its key performance characteristics and technical introduction:
1. Explosion-proof Performance
Explosion-proof Grade:
The equipment meets the Ex db IICT4 Gb (or higher) explosion-proof standard. Key components such as the motor, electrical control box, and operating buttons all adopt explosion-proof designs, effectively preventing electric sparks or high temperatures from causing explosions.
Applicable Environment:
Suitable for Zone 1, Zone 2 explosive gas environments (such as methane, hydrogen, ethylene, etc.) or Zone 21, Zone 22 combustible dust environments (such as coal dust, aluminum powder, flour, etc.).
2. Structure and Materials
Explosion-proof Design:
Motor: Totally enclosed explosion-proof type, preventing internal sparks from leaking.
Electrical System: Explosion-proof control box, explosion-proof limit switches, explosion-proof cables, etc. All electrical components have passed national explosion-proof certification.
Mechanical Structure: Gearboxes, brakes, and other components use spark-free materials or special sealing designs.
Metal Structure:
The main beam and end beams use high-quality steel, with surface anti-corrosion treatment (such as sandblasting, galvanizing, or coating with a corrosion-resistant coating), suitable for humid or corrosive environments.
3. Safety Performance
Multiple Protection Mechanisms:
Overload Protection: Explosion-proof overload limiter monitors the load in real-time and automatically cuts off the power when overloaded.
Limit Protection: Double limit up limit switches.
Emergency Stop Button: Explosion-proof emergency stop device to handle emergencies.
Phase Loss Protection: Automatically cuts off the circuit when the power supply is abnormal.
4. Lifting Mechanism ：
Using an explosion-proof steel wire rope Electric Hoist as the lifting mechanism; reliable performance and high cost-effectiveness.
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