Table of Contents
Technical data
This page gives the technical data of the GDM linear stages. The table lists the electrical and mechanical parameters for the available models.
Unit without protection bellows
Unit with protection bellows
| Parameter | Unit | Symbol | GDM250XS | GDM350XS | GDM350ES |
| Rated Force | N | Fr | 109 | 191 | 269 |
| Peak Force | N | Fp | 709 | 1242 | 1749 |
| Carriage length | mm | Lt | 305 | 305 | 502 |
| Unit length | mm | Lm | Stroke+305 | Stroke+305 | Stroke+502 |
| Slider diameter | mm | D | 25 | 35 | 35 |
| Pole pitch | mm | 2p | 60 | 60 | 60 |
| Force constant | N/A | Fc | 52 | 73 | 73 |
| Rated current | A | Ia | 2.1 | 2.6 | 3.6 |
| BEMF constant | Vrms/m/s | Ke | 32.35 | 42.4 | 43.6 |
| Phase resistance | ohm | Rph | 10.6 | 7.65 | 5.25 |
| Phase inductance | mH | Lph | 16.5 | 7.5 | 4.9 |
Notes on the data
- The rated force (Fr) and peak force (Fp) are the continuous and short-term force. - The unit length depends on the stroke: it is the stroke plus the carriage length. - The pole pitch, force constant, and BEMF constant define the electrical and commutation behaviour. - The phase resistance and phase inductance are the winding parameters for the drive sizing.