Reference-class linear drive
Combines high precision, high forces, and high dynamics.
Travel ranges of 20 mm and 50 mm, minimum incremental motion to 0.1 µm, DC motor for high velocities, push / pull force capacity up to 120 N, MTBF >10000 h
High-quality components
Ball screw for high velocities and a high number of cycles. Nonrotating tip for uniform motion prevents wobble, torque, and wear at the point of contact. Incl. flat and spherical tip for decoupling forces. Noncontact limit switches protect the mechanics. A direction-sensing reference switch supports automation applications. Position-controlled variants with differential encoder driver in the connector for safe signal transfer over distances up to 10 m.
Motor variants
Application fields
Precision adjustment. External drive element for guided systems.
| Motion | M-235.2DD | M-235.5DD | M-235.2DG | M-235.5DG | Tolerance |
|---|---|---|---|---|---|
| Active axes | X | X | X | X | |
| Travel range in X | 20 mm | 50 mm | 20 mm | 50 mm | |
| Maximum velocity in X, unloaded | 30 mm/s | 30 mm/s | 2 mm/s | 2 mm/s | |
| Positioning | M-235.2DD | M-235.5DD | M-235.2DG | M-235.5DG | Tolerance |
| Minimum incremental motion in X | 1.5 µm | 1.5 µm | 0.1 µm | 0.1 µm | typ. |
| Unidirectional repeatability in X | ± 0.5 µm | ± 0.5 µm | ± 0.1 µm | ± 0.1 µm | typ. |
| Backlash in X | 2 µm | 2 µm | 2 µm | 2 µm | typ. |
| Reference switch | Hall effect | Hall effect | Hall effect | Hall effect | |
| Limit switches | Hall effect | Hall effect | Hall effect | Hall effect | |
| Integrated sensor | Incremental rotary encoder | Incremental rotary encoder | Incremental rotary encoder | Incremental rotary encoder | |
| Sensor resolution | 2048 Cts./rev. | 2048 Cts./rev. | 2048 Cts./rev. | 2048 Cts./rev. | |
| Drive Properties | M-235.2DD | M-235.5DD | M-235.2DG | M-235.5DG | Tolerance |
| Drive type | DC motor | DC motor | DC gear motor | DC gear motor | |
| Operating voltage | 0 to ±12 V | 0 to ±12 V | 0 to ±12 V | 0 to ±12 V | |
| Drive force in X | 50 N | 50 N | 120 N | 120 N | typ. |
| Mechanical Properties | M-235.2DD | M-235.5DD | M-235.2DG | M-235.5DG | Tolerance |
| Permissible push force in Y | 8 N | 8 N | 8 N | 8 N | max. |
| Drive screw type | Ball screw | Ball screw | Ball screw | Ball screw | |
| Drive screw pitch | 1 mm | 1 mm | 1 mm | 1 mm | |
| Gear ratio i | — | — | 29,6 : 1 | 29,6 : 1 | |
| Overall mass | 500 g | 650 g | 550 g | 700 g | |
| Material | Aluminum, anodized, chrome steel | Aluminum anodized, chrome steel | Aluminum anodized, chrome steel | Aluminum, anodized, chrome steel | |
| Miscellaneous | M-235.2DD | M-235.5DD | M-235.2DG | M-235.5DG | Tolerance |
| Operating temperature range | -20 to 65 °C | -20 to 65 °C | -20 to 65 °C | -20 to 65 °C | |
| Connector | D-sub 15 (m) | D-sub 15 (m) | D-sub 15 (m) | D-sub 15 (m) | |
| Cable length | 0.5 m | 0.5 m | 0.5 m | 0.5 m | |
| Recommended controllers/drivers | C-863.12 C-885 with C-863.20C885 C-884 | C-863.12 C-885 with C-863.20C885 C-884 | C-863.12 C-885 with C-863.20C885 C-884 | C-863.12 C-885 with C-863.20C885 C-884 |
At PI, technical data is specified at 22 ±3 °C. Unless otherwise stated, the values are for unloaded conditions. Some properties are interdependent. The designation "typ." indicates a statistical average for a property; it does not indicate a guaranteed value for every product supplied. During the final inspection of a product, only selected properties are analyzed, not all. Please note that some product characteristics may deteriorate with increasing operating time.
Linear Actuators: M-168 / M-22x / M-23x
M-235 Linear Actuators
Ask for a free quote on quantities required, prices, and lead times or describe your desired modification.
High-resolution linear actuator with DC motor; DC motor; 20 mm travel range; 50 N feed force; 30 mm/s maximum velocity; ball screw; incremental rotary encoder, 2048 counts/rev. sensor resolution; limit switches: Hall effect; 0.5 m cable length
High-resolution linear actuator with DC motor; DC motor; 50 mm travel range; 50 N feed force; 30 mm/s maximum velocity; ball screw; incremental rotary encoder, 2048 counts/rev. sensor resolution; limit switches: Hall effect; 0.5 m cable length
High-resolution linear actuator with DC motor; DC gear motor; 20 mm travel range; 120 N feed force; 2 mm/s maximum velocity; ball screw; incremental rotary encoder, 2048 counts/rev. sensor resolution; limit switches: Hall effect; 0.5 m cable length
High-resolution linear actuator with DC motor; DC gear motor; 50 mm travel range; 120 N feed force; 2 mm/s maximum velocity; ball screw; incremental rotary encoder, 2048 counts/rev. sensor resolution; limit switches: Hall effect; 0.5 m cable length
