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. The granite slab lifting clamp is available in a variety of opening sizes to easily handle objects of different sizes; it can move marble, granite, and almost any type of material or stone. The stone lifting clamp is made of high-quality, thickened alloy steel, processed with a high-temperature forging process, making it safe, durable, and long-lasting. The expansion pin nut securely holds the steel plate in place safely, conveniently, durablely, and with strong stability; the additional chain is made of thickened, wear-resistant material, sturdy and durable, allowing the clamp to be suspended from excavators or similar machinery. The contact surface between the stone lifting clamp and the stone is made of polyurethane rubber, a special material that will not damage the stone and has excellent heat insulation, sound insulation, impact resistance, and wear resistance. This heavy-duty marble and stone handling clamp is designed for vertical lifting and handling of steel plates and structures; it can also handle marble, granite, and almost any type of material or stone., Manufacturer: WLH Alexanders