Shandong China Coal Industry&Mining Supplies Group
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Lifting equipment is of the most common type of spreader. Often by means of pulley hook hanging in other parts of the rope on the hoisting mechanism.
According to the shape,the grab hook is divided intosingle hook and double hook; according to manufacturing methods are divided into forging hook and laminated hook.
Single hook is simple to manufacture, easy to use, but the force is not good, mostly used in lifting capacity of 80 tons in the workplace; when lifting force large,often used symmetrical double hook. Laminated hook from a few pieces riveted steel plates cut to shape, when the individual steel plate cracks, the entire hook will not destroy, security is good, but larger self, mostly used in large lifting or hoisting steel ladles the crane. Hook by the impact of the job process often requires the use of toughness, good quality carbon steel.