Thickened Nuts: The thickened self-locking nuts play a role in stopping loosening, and can be casually changed and adjusted for easier use, which is more convenient and fast.
Installation-free: Our product is already installed, so you don't have to do the additional installation when you get it, which is time-saving. The additional chain allows you to hang the product on an excavator or other machine.
Stable and Reliable: Its solid chucks and chain structure cooperate with each other, making this item lift up to 716.5 lbs of stone and bear high-strength stone clamping work.
Adjustable Opening: Its opening can be adjusted at 4.7-14.2inch, so it can also adapt to different sizes of stone to meet your diversified needs.
Application It can be widely used in electric power, ship, automobile, aviation, construction, highway, bridge, metallurgy, mine, slope tunnel, and other infrastructure construction projects for lifting timber, boards, wooden pallets, etc.