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Lifting Tongs

Tongs  


Bushman AvonTec design and manufacture a complete line of tongs for lifting and moving a wide range of industrial loads. They design each tong for the size, shape, weight and special conditions relevent to each customer's particular application.

Bushman AvonTec coil lifters are designed and manufactured according to the latest revisions of ASME Specifications B30.20 and BTH-1, Design of Below-the-Hook Lifting Devices.


There are three basic tong configurations and application concepts:

 

Supporting

Supporting Tong

Supporting Tongs are used for single-size objects that have support clearance underneath, such as boxes, crates, bins and containers. The lifting feet of the tong support the load and maintain it on a horizontal lifting plane.

   
Gripping

Gripping Tong

Gripping Tongs are used for materials such as ingots, rolls, tubes, pipes and other round or cylindrical objects. The tongs extend beyond and below the centre of the load to provide additional support. The diameter of the load may vary by approximately 25%, but the variation in length is generally unlimited.

   
Pressure

Pressure Tong

Pressure Tongs are used for gripping the vertical sides of slabs, bales, boxes, billets and other flat or round objects. Pads on pressure tongs provide surface friction or penetration of the load to maintain a safe hold during handling. Pads can come with rubber, belting, pins, points, serrated bits and other materials, depending on the coefficient of friction required for the load.

 

EXAMPLES OF LIFTING TONGS

 

Supporting tong SUPPORTING TONG: This supporting tong has a locking pin.
   
Gripping tong GRIPPING TONG: These Model 1529 mill roll tongs lift round steel ingots from 12 to 40 inches in diameter and weighing up to 50 000 pounds.
   
Pressure tong PRESSURE TONG: The model 1503 slab tong is a mill duty lifter designed to handle loads in a wide range of widths. Various gripping pads, including steel points and serrated pads, are available. This tong uses a Bushman AvonTec mechanical latch for easy engagement and disengagement of the load.

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