General purpose overhead crane
Explosion-Proof Overhead Crane
Product Overview
The Explosion-Proof Overhead Crane is engineered for material handling in hazardous environments where flammable gases, vapors, or combustible dust are present — such as chemical plants, oil refineries, paint shops, and grain processing facilities. Every electrical and mechanical component is designed to prevent ignition sources, meeting the relevant explosion-proof zone classification for the application.
Structure Composition
- Main Girder: Single or double girder structure (selected based on required capacity and span), identical in basic form to a standard overhead crane girder.
- Explosion-Proof Motors and Electrical Enclosures: All motors, control panels, and junction boxes are sealed and rated to the required explosion-proof standard (e.g., Ex d, Ex e, depending on zone classification).
- Non-Sparking Components: Wheels, brake linings, and other components prone to friction are manufactured from non-sparking materials where required by the hazard zone.
- Anti-Static Provisions: Grounding and bonding systems to dissipate static charge buildup during operation.
- Control System: Explosion-proof pendant or remote control, avoiding any exposed sparking contacts in the hazardous area.
Application
- Petrochemical and oil refining plants
- Chemical processing and storage facilities
- Paint shops and coating lines
- Grain, flour, and other dust-generating processing facilities
- Any facility with a classified hazardous area under electrical safety codes
Key Features
- All electrical components rated and certified to the required explosion-proof classification for the specific hazard zone
- Non-sparking wheel and brake material options to eliminate mechanical ignition sources
- Fully sealed cable entries and junction boxes to prevent gas or dust ingress
- Available in both single and double girder configurations to match the required capacity
Technical Parameters (Reference Range)
Lifting Capacity: 1–100 t
Span: 6–28 m
Lifting Height: 6–24 m
Working Class: A4–A6
Explosion-Proof Rating: Selected per hazard zone (consult applicable local/international standard)
Safety Devices
Explosion-proof overload limiter, hoist and travel limit switches, static grounding system, sealed emergency stop system, gas/dust ingress protection on all enclosures.
Customization Options
Explosion-proof zone rating and certification standard, single or double girder structure, non-sparking material selection, and control method (explosion-proof pendant or remote) matched to the facility’s hazard classification.
