Roeders Precision Technologies
PRECITEMP® — High precision also in case of temperature fluctuations in the workshop
In most applications, temperature fluctuations in the workshop are the main cause of inaccuracies during machining. This also applies to air-conditioned workshops, where the temperature often only fluctuates by a few degrees. This has therefore been a focus of development at Roeders in recent years. The result is the unique PRECITEMP® technology, which enables a temperature-resistant optimization of the machine for maximum precision with a graduated concept depending on the requirements. The machine has been viewed holistically and a comprehensive solution for temperature control of all machine components has been developed. Minimal residual errors are eliminated with software compensation.
Heat sources in the machine such as motors, main spindle, linear guideways (optional) and rotary axis bearings are also temperature-controlled with high precision. As a result, the zero point of the machine is within +/- 1 µm, even with temperature fluctuations in the workshop of up to +/- 3°C.
For the first time on the 5‑axis RPT Machines, the rotary axis bearings and machine table can also be temperature-controlled. In addition, the torque motors in the rotary axes have Roeders’ own greatly improved temperature control. This significantly reduces dimensional deviations at higher speeds or high torque loads on the rotary axes.
All heat sources within the machine are temperature-controlled by numerous temperature-control circuits. Where highest precision is required, the guideways can directly be temperature-controlled.
The hysteresis of the cooling water used to regulate the machine’s temperature is less than < +/- 0.1 Kelvin. In case of special requirements, this can be reduced to +/- 0.02 Kelvin.
