Linear actuator MLA-CMA20
M-Thrust series precision actuators offer backlash-free motion of the shaft up to 25 mm travel range. Precision motion is accomplished by a miniature DC servo with rotary encoder or stepper motor providing 0.1 micron resolution. Precision fine pitch screw mechanism converts rotation of the motor shaft into linear travel while avoiding any backlash inside the system. This provides very responsive motion with exceptionally load capacity up to 70 N and low friction. M-Thrust actuators are offered in multiple travel ranges with limit switches at both ends of the travel.
- Stepper or DC motor driven
- Motorized screws design
- Small profile
- No backlash
- Built-in sensors
LINEAR ACTUATOR MLA_CMA20-8 (8 mm stroke)
 Linear actuator MLA-MS00 MLA-MS00 Stroke 10, 25 mm Length 79 mm WxH 28x43 mm Force 30, 60N |
 Linear actuator MLA-CMA06 MLA-CMA06 Stroke 13, 25 mm Length 87, 101 mm WxH 20x26 mm Force 30N |
 Linear actuator MLA-CMA28 MLA-CMA28 Stroke 10 mm Length 114 mm WxH 33x28 mm Force 70N |
| Parameter | Unit |
MLA- |
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| MS00 | CMA06 | CMA-20 | CMA-28 | CMA-16DC | |||||
|
Stroke |
mm |
10 |
25 |
13 |
25 |
8 |
10 |
10 |
25 |
|
Screw lead |
mm | 0.25 | |||||||
|
Repeatability |
1 | 2 | |||||||
|
Accuracy |
micron | 3 | |||||||
| Resolution | micron | note 1, 2 | |||||||
|
Motor |
|
Stepper Nema11 |
Stepper Nema17 |
Stepper Nema8 |
Stepper Nema8
|
Stepper Nema11 |
DC Encoder option |
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|
Speed |
mm/sec | 4 | 5 | 3 | 3 | 3 | 4 (note 4) | 8 | |
|
Force |
N | 60 | 80 | 30 (Note 3) | 70 | 30 | |||
|
Limit switches |
2 | ||||||||
|
Stage weight |
kg | 0.45 | 0.55 | 0.12 | 0.15 | 0.1 | 0.15 | 0.12 | 0.15 |
| Note 1 |
Open loop Micro-stepping resolution = screw_lead/200/microsteps_per_step where: motor has 200 full steps/rev driver micro-stepping resolution 64, 128, 256 micro-steps/step |
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| Note 2 |
Closed loop servo resolution = screw_lead/encoder_cpr/4 where: encoder_cpr is number of encoder counts per revolution 4 is post-quad processing in the motion controller |
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| Note 3 |
At speed < 1 mm/sec |
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| Note 4 |
At speed < 3 mm/sec |
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