
Qb Explosion Proof Double Girder Overhead Traveling Bridge Crane. Explosion-Proof Design: Meets ExdIIBT4/ExdIICT4 standards for safe operation in hazardous environments. Customizable Span: Flexible span options ranging from 10.5m to 31.5m to fit specific site requirements. Variable Speed Control: Adjustable lifting and traveling speeds (0.3-5 m/min) for precise load handling. Dual Operation Modes: Supports both air operation and ground operation for versatile usage scenarios. OEM/ODM Services: Full customization available from samples or designs with flexible customization options. Certified Quality: CE, RoHS, GS, and ISO9001 certified with 100% visual and function inspection. Fast Lead Time: Production completed within 15 workdays during both peak and off-peak seasons. Durable Construction: Built with Q235B/Q355b steel material for a service life of 10-15 years.