Double-girder Semi-gantry Crane: lifting 50 tons on a single outrigger, reshaping workshop space rules

Next to the steel structure columns of the workshop, a bright yellow double-girder semi-gantry crane, with its "double beams like wings and single-sided outriggers climbing columns", breaks the spatial constraints of heavy lifting - the 50-ton hook hangs like a bell, and the limit signs on the operating platform echo the smart screen, opening up a new lifting path with "space saving, strong load and high precision" in the "heavy-load jungle" of heavy machinery and metallurgical workshops.

Technical Parameters:

Double Girder + Single Side: A "Geometric Revolution" in Heavy-Load Space
✅ Dual-Girder Strength: Utilizing a Q355B low-alloy manganese steel box-type main beam, welded and shot-blasted for rust removal, the double-girder crane boasts 30% greater torsional rigidity than a single girder. Under a full load of 50 tons, the static mid-span deformation is ≤ 1/1000 of the span (e.g., ≤ 20mm for a 20m span), ensuring rock-solid stability for hoisting steel coils and molds.
✅ Single-Side Outrigger Philosophy: The L-shaped box-type outrigger crane is "built close to the column," with one side running along the track and the other attached to the factory building column. This reduces track infrastructure costs by 50%, eliminates the need to alter existing building structures for retrofits, and allows for rapid integration into existing production lines in 30 days.
✅ Empowering Operation Platform: Fully enclosed guardrails and a visual operation screen enable "man-machine simultaneous inspection," providing real-time access to load, wind speed, and limit data, enabling single-screen control of lifting decisions.

An all-around problem solver for heavy-load scenarios
🔹 Heavy machinery workshops: Lifting 50-ton molds and CNC machine tools, the boom reaches deep into the production line, replacing the cumbersome relay of a forklift and overhead crane, increasing equipment lifting efficiency by 60%;
🔹 Metallurgical production lines: Capable of handling temperatures up to 800°C (with built-in insulation on the outriggers), it lifts steel coils and ingots, improving the dual-beam's resistance to thermal deformation by 40%, allowing the casting area to operate continuously;
🔹 Customized breakthrough: The explosion-proof version (Exd IIB T4 certified) is designed for chemical workshops. Its ultra-wide boom (≤20m) covers the material yard outside the columns, transforming "impossible lifting areas" into work areas.