Explosion Proof Overhead Crane Overview

The term “explosion-proof” indicates equipment designed to prevent the ignition of flammable substances like gases, vapours, dust, or fibres. In industrial settings where these volatile materials are prevalent, the risk of explosions is a constant concern. Single girder explosion proof overhead cranes are engineered to operate in these hazardous environments without introducing the risk of ignition.

The explosion-proof Single Girder Overhead Crane mainly consists of a crane travelling mechanism, electrical system, bridge, Explosion Proof Electric Hoist, etc.

The explosion-proof single girder crane is a small overhead crane with light lifting capacity, installed with a flame-proof hoist, with all the motors and electrical equipment of the explosion-proof crane manufactured in line with international standards and regulations. The lifting capacity of the single girder explosion-proof crane is 1 to 20 tons and the working class is A3.

Advantages of Single Girder Explosion Proof Overhead Crane

• Reasonable design, strong explosion-proof ability
• Company structure, good rigidity
• Installed with adjusting speed converter, steady travelling
• High safety and reliability

Key Features of Single Girder Explosion Proof Crane

1. On mechanical system (Single girder explosion-proof overhead cranes boast a unique structural design that optimizes load-bearing capacity while minimizing exposure to potential ignition sources. The single girder design enhances the crane’s manoeuvrability and adaptability in various industrial settings.)

• High quality materials: Q235B or Q345B
• Superior steel plates welded rectangular tube legs
• Trinity-drive system or traditional drive by motor and reducer
• Smoothly moving, effectively braking, long service life

2. On electrical system (These cranes incorporate explosion-proof components, including motors, wiring, and electrical systems, that are carefully sealed to prevent the escape of sparks or heat. The use of non-sparking materials in critical areas further reduces the risk of ignition.)

• Independent and simultaneous control of all the electric hoist and crane movements.
• The electric hoist mobile power supply is constituted of flat cables, special cables, galvanized slippery course small cable pulley, etc.
• Smoothly moving, beautiful appearance

3. On safety measures (Single girder explosion-proof overhead cranes utilize advanced ignition prevention measures, such as temperature monitoring and spark-resistant features. These mechanisms actively identify and eliminate potential sources of ignition, contributing to the overall safety of crane operations.)

• Overloading protection
• Height limit switches
• Speed limit switches: fast to slow and stop
• Buffer devices to hoist trolley and crane bridge
• Lockable Mains Isolator at the end of the runway
• Warning indicator: anti-collusion device and flashing lights and warning sound.
• Motors with temperature control devices, with the insulation class F.
• Self-adjusting, twin, disc brake on hoist motion, asbestos-free brake
• Anti-Derailment Device on Crane and Crab Unit, Non-Sparking Type
• Crane, Crab Wheels and Crane Hook made from Anti-Sparking Material

Flame Proof Hoists: A Crucial Component in Single Girder Cranes

While the structural design of single girder explosion-proof overhead cranes is pivotal in preventing internal ignition, the hoist remains a critical component in lifting operations. Flame-proof hoists, designed to complement explosion-proof cranes, ensure that lifting activities are conducted without introducing sparks or heat.

1. Enhanced Safety Measures: Flame-proof hoists share design considerations with explosion-proof cranes, incorporating non-sparking materials and effective sealing. The hoist’s motor and electrical components are enclosed to prevent the escape of sparks or heat, contributing to enhanced safety during lifting operations.
2. Temperature Monitoring and Shutdown: To add an extra layer of safety, flame-proof hoists often integrate temperature monitoring systems. These systems automatically shut down the hoist if excessive heat is detected, preventing the risk of ignition and ensuring a proactive approach to safety.

Applications of Single Girder Explosion Proof Overhead Crane

1. Manufacturing Industry: In manufacturing plants where the movement of heavy loads is routine, single girder explosion-proof overhead cranes provide a safe and efficient solution. The single girder design allows for increased flexibility in navigating tight spaces, making them ideal for assembly lines and production floors.
2. Chemical Processing Plants: Chemical processing plants deal with a wide range of volatile substances. Single girder explosion-proof overhead cranes are designed to operate in these environments, facilitating the safe lifting and movement of materials without introducing the risk of ignition.
3. Waste Management Facilities: Waste management facilities often handle combustible materials. Single girder explosion-proof overhead cranes are well-suited for such environments, where their structural design and explosion-proof features ensure the safe and efficient handling of waste materials.

Safety Standards and Certification of Explosion Proof Crane

1. Certifications and Compliance: Single girder explosion-proof overhead cranes should adhere to industry-specific certifications and compliance standards. This includes certifications from organizations such as the Occupational Safety and Health Administration (OSHA) in the United States and the ATEX directive in Europe.
2. Periodic Inspections: Regular inspections and adherence to maintenance schedules are essential to ensure the continued compliance of single girder explosion-proof overhead cranes. Periodic assessments help identify wear and tear, allowing for timely repairs and replacements to maintain optimal safety levels.