| Tirfors |
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Checklist
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- Are you pulling or lifting?
- What capacity do you need?
- What length of rope do you need?
- Have you a suitable anchor point?
- Do you require any slings or shackles to anchor from or
lift the load with?
- Do you need any other equipment to ease or speed up the
job?
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| Information |
The range of versatile Tirfor
lifting and pulling machines are safe, reliable and efficient. The
operating principle may be described as 'hand over hand'. While one
set of gripper jaws pull, the other changes position in order to pull
in its turn.
- The Tirfor can be a hoist, a winch, a tensioner, a binder, a
ratchet and many more.
- It is portable and has remarkable strength to weight ratio.
- It provides unlimited pulling length or lifting height, and
pinpoint accuracy in positioning loads.
- Built to high safety factors and test certificates are provided
for machine and rope.
- Increase of lifting and pulling power
The lifting and pulling power of the Tirfor machines can be greatly
increased by the use of multiple sheave blocks. These can increase
the nominal capacity of the Tirfor machine by 2,3 or 4 times or
more.
For most applications, an allowance must be made for friction in
the sheaves. Ensure that the capacity of the blocks and fittings
and anchor points are suitable for the load. When using the Tirfor
for pulling purposes it should be remembered that the necessary
pulling effort is not equal to the weight of the load to be moved,
but is proportional to the friction to be overcome.
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