Our alloy steel manual trolley glides effortlessly on both I-beams and H-beams. It's a powerhouse for various settings like factories, mines, and construction sites, easily compatible with your lifting needs. With our beam trolley, heavy lifting is no sweat. It's built to handle the big stuff – yes, even a cow, if that's your thing. Ready for the heavy-lifting challenge? We've got you covered. SucceBuy beam trolley hoist adds a touch of extra security with the crown nut and wire pin. The crown nut can be quickly tightened without tools, and the wire pin locks securely in place, providing double the security.