Clamp Lifting Grabs for Manual Hoists

A clamp is a component for gripping and securing parts together in a tight connection. It is notable for its simple design. The function of the clamp lifting grab is to move loads, goods and metal sheets. The design is suitable for sheet metal, sandwich panels and products of similar size and shape.

Fixation is achieved by a screw drive. To tighten it, the screw is turned using a lever, which presses the walls of the load with plates that prevent the metal from slipping out due to the pressure on the wall.

Application features

Since the pressure exerted on the load’s wall is high, the use of clamp lifting grabs is limited to applications where loads have sufficient hardness:

• Hot-rolled products;
• Sheet products;
• Long products.

If careful handling of loads is required, cushioning pads are additionally placed, or the contact area of the plates with the load is increased. The latter solution is actively used for transporting sandwich panels.

Design

A manual vice, or clamp lifting grab, is a grab with a screw drive and a clamp, used for lifting loads. The mechanism includes:

1. A hook for vertical and horizontal movement;
2. A clamp;
3. A screw with a lever that presses the wall of the load being carried against the opposite part of the grab.

How to choose?

The clamp lifting grab is selected based on the required load capacity and the gap between components. The grab’s opening does not exceed 80 millimeters. The clamp lifting grab is typically used at small enterprises. According to GOST, the device may only be operated in pairs.

Manufacturing is governed by GOST 25573-82. Products are approved for sale only after passing quality control at the manufacturer’s facility.