LB explosion-proof overhead crane

Technical Configuration

The LB explosion-proof overhead crane is built to project-specific requirements, with capacity ranging from 1 ton to 20 tons as standard, though custom capacities beyond this range can be engineered upon request. Span and lifting height are fully customizable to match your facility dimensions, with typical spans from 7.5 meters to 31.5 meters and lifting heights up to 18 meters. The crane features a single-girder box-type main beam constructed from Q235B or Q345B steel, designed to FEM, DIN, or CMAA standards, and can be supplied with either a welded or bolted end carriage configuration. The explosion-proof electric hoist is the core lifting mechanism, with all motors, brakes, and electrical enclosures certified to GB/T 3811, GB/T 14405, and relevant ATEX or IECEx equivalents. Motor and electrical components are available with Schneider or Siemens as optional upgrades, providing enhanced reliability and global parts availability. Control modes include cabin operation with a fully enclosed, ventilated, and insulated operator cabin, wireless remote control with emergency stop and two-step speed control, or pendant control with a robust, explosion-proof pushbutton station. Standard safety devices include overload limit switches, hoist upper and lower limit switches, cross-travel and long-travel end limit switches, emergency stop buttons, and audible/visual alarms. Optional features include variable frequency drives for smooth acceleration and deceleration, anti-collision systems for multi-crane runways, corrosion-resistant coatings for aggressive environments, and integrated load monitoring with data logging.

This crane serves a broad range of industrial applications. In chemical and petrochemical plants, it handles raw materials, drums, and reactor components in solvent-laden atmospheres. Oil and gas facilities use it for maintenance lifting in refineries, storage terminals, and offshore module yards. Power plants, including coal-fired, gas turbine, and biomass facilities, rely on the LB crane for turbine hall maintenance, fuel handling, and ash removal in dusty environments. Pharmaceutical and fine chemical manufacturers deploy it for moving active ingredients and intermediates in cleanroom-compatible, explosion-proof configurations. Paint, coating, and solvent storage warehouses benefit from its safe operation in volatile fume zones. Additionally, metal processing facilities handling aluminum or magnesium dust—where combustible particulate is a hazard—use this crane for scrap handling and furnace charging.

Chunhua Crane offers direct factory pricing, typically 30 to 50 percent below equivalent European-branded explosion-proof cranes, without compromising on safety or performance. All cranes are manufactured in our Hefei facility under strict quality control and can be supplied with CE certification for European markets, CCC certification for China, or compliance documentation for other regional standards. Our engineering team provides custom design services for non-standard spans, heights, capacities, or special environmental conditions. We guarantee a formal quotation with preliminary CAD drawings within four hours of receiving your inquiry. With over two decades of export experience, we have shipped cranes to more than 60 countries, including Germany, the United States, Saudi Arabia, Indonesia, and Brazil, with comprehensive sea freight logistics and customs documentation support.

To initiate your order, contact us via WhatsApp or email with your required capacity, span, lifting height, and any specific environmental classification details. Our sales engineering team will respond with a detailed quotation and preliminary CAD layout within four hours. Upon acceptance, a 30 percent deposit via T/T is required to begin production. Manufacturing lead time is 30 to 45 days, depending on complexity and current workload. After production, we coordinate sea freight to your nearest port, with full packing for ocean transport including fumigation-free wooden crates and rust-proofing. Optional on-site installation and commissioning services are available through our network of certified local partners in most regions, ensuring your crane is operational and compliant upon arrival.