Heavy Stone Lifting and Handling: With a maximum capacity of 1800 kg (3968 lbs), this clamp is ideal for lifting precast concrete walls up to 25 cm (10 inches). Designed for extended use, it easily handles heavy loads and demonstrates the laws of gravity and physics in everyday applications. Ideal for construction and heavy lifting tasks. LIFT AND MOVE HEAVY STONES: This peg has a maximum capacity of 1800 kg/3968 lbs. You can easily erect a precast concrete wall 25 cm thick and keep it there for hours or even days. This tool is not only practical for lifting and moving heavy objects, but also demonstrates the use of gravity and everyday applications of physics. Versatile: The stone lifting clamp easily attaches to a crane or lifting equipment, making it ideal for a variety of applications. It is ideal for elevating materials such as stone, wood, drywall, concrete, and metal strips to raised platforms, floors and ceilings. This versatile tool is designed to provide efficiency and reliability in construction and industrial environments. High Efficiency Stone Chain Clamp - This lifting clamp is ideal for those who need to lift heavy objects repeatedly. Its sturdy chain is forged from manganese steel and alloy steel plates. It is safe, durable, very stable and will not break. This reduces the risk of accidents and stone damage during lifting. Adjustable jaw opening for adaptability: Easily lift a wide variety of materials by adjusting the jaw arm pivot bolt. The length of the chain is also customisable. The gripping force gradually increases with the weight of the slab. The vertical scissor caliper increases grip strength by increasing tension, allowing for greater jaw opening and improving lifting efficiency., Manufacturer: ZOCWJK