Röders RPT450

The Röders RPT450 is the smallest 3-axis machine in the RPT series, the line Röders builds for milling, grinding and measuring on one machine. Its machining range is 470 mm x 490 mm x 280 mm (18.5 x 19.3 x 11.0 in) over a 450 mm x 360 mm (17.7 x 14.2 in) table with 14 mm T-slots.

Note that the range is larger than the table in both directions. Röders does this on purpose in the 3-axis RPT machines: the machine can mill the surface of its own table with a fine finishing cut, so flatness and parallelism are produced by the axes that will later cut the part. For jig grinding work, where the reference surface decides the result, that is a real advantage.

Röders names two technologies as the core of the series. PRECITEMP is its thermal stabilisation, intended to hold precision when workshop temperatures fluctuate. NANOTOL is aimed at sub-micrometre precision in the linear axes. The motors are stronger than on the RXP machines, which Röders ties to higher stroke frequencies in jig grinding. Auxiliary equipment for grinding stands next to the machine table.

The standard spindle gives 42,000 rpm and 15 kW (20.1 hp) on HSK E40, the biggest interface for this size, with tools up to 16 mm. The changer has 31 or 75 places. Clamping is by Erowa UPC, System 3R Dynafix or Parotec Power Grip 160, and the table takes 200 kg (441 lb). The machine weighs about 8.0 t on W 2,835 mm x L 2,700 mm x H 2,720 mm, with the electrical cabinet standing separately beside it.