Lifting clamps utilize the lever principle, generating clamping force through the weight of the load itself, eliminating the need for an external power source. Operators can quickly lift and transport steel plates and structural steel sections with simple loading and unloading, significantly improving work efficiency and reducing manual labor intensity. Thickened rod and nut fittings ensure safety, durability, and stability, preventing breakage or jamming. The adjustable manganese steel chain ensures safe lifting. The contact surface for gripping stone is made of polyurethane rubber, offering impact resistance and abrasion resistance. The textured design ensures a firm, non-slip grip, improving safety and preventing damage to the stone during lifting operations. The lifting clamp is made of alloy steel, making it resistant to paint chipping and able to withstand harsh environments. It is safe, impact-resistant, durable, and has a long service life. The opening size is freely adjustable to meet your needs for different sizes of stone. With its powerful jaws, this vertical clamp can firmly hold steel plates of various thicknesses. It is easy to operate, saving time and effort. This heavy-duty clamp is used for vertical lifting and transportation; suitable for lifting concrete blocks, granite slabs, timber, steel plates, marble, bricks, and most types of materials or stone; allowing you to move materials safely and easily., Manufacturer: WLH Alexanders