Reference-class linear drive
High-resolution, high-load linear actuator. Highly dynamic, closed-loop DC motors for high velocities.
High-quality components
Ball screw for high velocities and a high number of cycles. Stable bearing at shaft output reduces lateral forces on the pusher. 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
Highly-accurate position measuring with incremental linear encoder
Noncontact optical linear encoders measure the position with highest accuracy directly on the platform Nonlinearity, mechanical play or elastic deformation have no influence on the measurement.
Application fields
Precision alignment, external drive element for guided systems.
| Motion | M-238.5PG | M-238.5PL | Tolerance |
|---|---|---|---|
| Active axes | X | X | |
| Travel range in X | 50 mm | 50 mm | |
| Maximum velocity in X, unloaded | 30 mm/s | 30 mm/s | |
| Positioning | M-238.5PG | M-238.5PL | Tolerance |
| Minimum incremental motion in X | 0.5 µm | 0.3 µm | typ. |
| Unidirectional repeatability in X | ± 1 µm | ± 0.3 µm | typ. |
| Backlash in X | 3 µm | 1 µm | typ. |
| Reference switch | Hall effect | Hall effect | |
| Reference switch repeatability | 1 µm | 1 µm | |
| Limit switches | Hall effect | Hall effect | |
| Integrated sensor | Incremental rotary encoder | Incremental linear encoder | |
| Sensor resolution | 4000 Cts./rev. | ||
| Sensor resolution | 100 nm | ||
| Drive Properties | M-238.5PG | M-238.5PL | Tolerance |
| Drive type | DC gear motor with ActiveDrive | DC gear motor with ActiveDrive | |
| Nominal voltage | 24 V | 24 V | |
| Drive force in X | 400 N | 400 N | typ. |
| Mechanical Properties | M-238.5PG | M-238.5PL | Tolerance |
| Permissible push force in Y | 100 N | 100 N | max. |
| Drive screw type | Ball screw | Ball screw | |
| Drive screw pitch | 2 mm | 2 mm | |
| Gear ratio i | 3,71 : 1 | 3,71 : 1 | |
| Overall mass | 2400 g | 2400 g | |
| Material | Aluminum anodized, chrome steel | Aluminum anodized, chrome steel | |
| Miscellaneous | M-238.5PG | M-238.5PL | Tolerance |
| Operating temperature range | -10 to 50 °C | -10 to 50 °C | |
| Connector | D-sub 15-pin (m) | D-sub 15-pin (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 |
Linear Actuators: M-168 / M-22x / M-23x
M-238 High-Load Linear Actuator
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High-load linear actuator; DC gear motor with ActiveDrive; 50 mm travel range; 400 N feed force; 30 mm/s maximum velocity; ball screw; incremental rotary encoder, 4000 counts/rev. sensor resolution; limit switches: Hall effect
High-load linear actuator; DC gear motor with ActiveDrive; 50 mm travel range; 400 N feed force; 30 mm/s maximum velocity; ball screw; incremental linear encoder, 100 nm sensor resolution; limit switches: Hall effect
