Small diameter tube bender
Tube bending machine specialist Unison has launched what it believes is a new category of tube bending machine designed to substantially lower the cost and skill level required to produce precision tubular parts in small volumes.
The shipbuilding industry is one of the target sectors for the new machine – which can bend tube diameters of up to 2 inches/50 mm.
The new EvBend 2000 rotary draw tube bending machine has a unique architecture combining manual set-up with semi-manual operation of the bending arm – which has servomotor power assistance. This approach makes the machine intrinsically easy to understand and use – requiring just a few minutes of training – and inherently safe. However, very precise tube bending results are said to be assured by a unique CNC control system for the tube feed, carriage rotation, and bend axes.
EvBend 2000 is a variant of Unison’s successful EvBend 1000 manual machine which can handle tubing diameters up to 22 mm and is widely used in the aerospace sector. The new 2000 series machines can provide a bend torque of up to 5500 Nm to assist operation of the bend arm. This assistance allows machines to handle larger tubing diameters up to 2 inches/50 mm, including tubing made from hard high-performance alloy materials.
Unison says the EvBend concept is very well liked because of its lower cost compared with buying an automatic bending machine, and for its intrinsically simple and safe mode of operation.
By Jake Frith
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