Automatic tube and pipe cutting machines

RTA 35 and RTA 75 – in a modular design

Cut-off tubes and pipes chipless and with low burrs

The tube and pipe cutting machines RTA 35 and RTA 75 cut tubes and pipes chipless and with low burrs.

The diameters handled range from 2 to 76 mm with wall thicknesses between 0,4 and 3 mm.

Various materials can be treated, e. g. steel, highgrade steel / stainless steel, Al-alloys, other nonferrous metals, etc.

The knife-lifetime depends on the materials to be cut, however, ranges between 20 and up to 30.000 cuts.

RTA 35

Tube diameter:
Wall thickness:
Material:
Cycletime:
2 to 24 mm (35 mm)
0,3 to 1,8 mm
Steel, non-ferrous metals
up to 1900 parts/hour
RTA 75

Tube diameter:
Wall thickness:
Material:
Cycletime:
2 to 76 mm
0,4 to 3 mm
Steel, non-ferrous metals
up to 1700 parts/hour

The supply of the raw materials to the cutting machine, in most cases 6 m rods, is automatically performed either via a ‘bundle loader’ or an ‘inclined table magazine’.

Using the bundle loader a whole tube bundle will be used placed in belt loops. The individual tube rods are separated and supplied automatically to the cutting machine.

Cutting the tubes / pipes with our cutting machines RTA 35 and RTA 75 is a chipless process.

In order to make a maximum use of the individual tubes 2 or 3 different lengths are cut out of one tube. The cut pieces are received by a sorting unit and placed – sorted by length – into a magazine.

The first cut and also the final piece are sorted out separately. If requested, one can operate the machine without first cut – this material saving possibility is freely selectable via the operator’s display.

We can produce different lengths of tube parts – nearly any size is possible.

When working with coils – e. g. copper soft or hard, al-alloys, steel – an equalized speed between uncoiler and cutting machine is of great importance. Only then a smooth working cycle can be guaranteed. This is solved by using a specially developed equalizing roll, which actuates a driven uncoiler.

The tubes will be straightened before cutting. 18 straigthening rolls are available for this purpose. The rolls – which are hardened and polished – calibrate the
tube from a slightly oval diameter into the nominal diameter. If requested soft copper tube material can also be hardend during straightening.

After cutting the tubes with the cutting machine a direct interlinking with further processing machines can be made., as e. g. closing the tube ends, punching of the outer tube, etc.

RTA 75 with ‘bundle loader’

RTA 35 for small diameters of 4 – 12 mm

RTA 35 with sorting device for cut tube parts

Coil-tube-supply with uncoiler and equalizing roll

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Direct contact for Tube cutting machines