PLA Series Linear Servo Motor Actuator
Overview
PLA Series
Linear Servo Motor Actuator

Faster Settling, Accuracy and Highly Repeatable Positioning
PBA's PLA series linear servo motor actuators are "plug and play" center driven linear solutions that combine ironless and iron core linear motor technology to offer a modular actuator inclusive of precision linear encoders and linear guideways.
These modules offer optimal acceleration/ velocity possibilities and rigidity that allows for faster settling, accuracy and highly repeatable positioning.
PLA actuator is configurable as open frame systems for basic applications as well as partially enclosed and fully sealed bellow covers.
- - Velocity to 3m/sec
- - Acceleration up to 5Gs
- - Encoder Resolution to 0.8nm (Depends on drive)
- - Effective stroke up to 2m
D2
PLA - D2
- Linear Actuator
- Peak force to 137N, Continuous force to 27N
SPECIFICATION | MODEL | ||||||||
PLA-D2-C2 | PLA-D2-C3 | PLA-D2-C4 | PLA-D2-C5 | ||||||
Motor Parameters | Unit | S | P | S | P | S | P | S | P |
Peak Force | N | 92 | 137 | 183 | 229 | ||||
Continuous Force @ 120°C* | N | 18 | 27 | 37 | 46 | ||||
Peak Power @ 120°C | W | 24 | 36 | 48 | 60 | ||||
Continuous Power @ 120°C* | W | 744 | 1116 | 1488 | 1860 | ||||
Peak Current | Apk | 10.5 | 21 | 10.5 | 21 | 10.5 | 21 | 10.5 | 21 |
Continuous Current @ 120°C* | Apk | 2.1 | 4.2 | 2.1 | 4.2 | 2.1 | 4.2 | 2.1 | 4.2 |
Continuous Stall Current @ 120°C* | Arms | 1.40 | 2.80 | 1.40 | 2.80 | 1.40 | 2.80 | 1.40 | 2.80 |
Force Constant | N/Apk | 8.7 | 4.4 | 13.1 | 6.5 | 17.4 | 8.7 | 21.8 | 10.9 |
Back EMF Constant | Vpk/m/s | 10 | 5 | 15 | 7.5 | 20.1 | 10 | 25.1 | 12.5 |
Coil Resistance L-L @ 25°C | Ohm | 6.5 | 1.6 | 9.8 | 2.4 | 13 | 1.6 | 16.3 | 4.1 |
Coil Resistance L-L @ 120°C* | Ohm | 9.0 | 2.2 | 13.5 | 3.4 | 18.0 | 4.5 | 22.5 | 5.6 |
Inductance L-L @ 1kHz | mH | 1.53 | 0.38 | 2.3 | 0.57 | 3.06 | 0.77 | 3.83 | 0.96 |
Motor Constant @ 25°C* | N/√W | 3.95 | 4.84 | 5.59 | 6.24 | ||||
Motor Constant @ 120°C* | N/√W | 3.36 | 4.11 | 4.75 | 5.31 | ||||
Max. Terminal Voltage | Vdc | 400 | |||||||
Thermal Resistance @ 120°C* | °C/W | 3.19 | 2.13 | 1.60 | 1.28 | ||||
Max. Coil Temperature | °C | 120 | |||||||
Electrical Cycle Length | mm | 30 | |||||||
Specifications | |||||||||
Repeatability** | μm | ±2.0 | |||||||
Accuracy*** | μm | ±30μm/300mm | |||||||
Straightness*** | μm | ±10μm/300mm | |||||||
Flatness*** | μm | ±20μm/300mm | |||||||
Linear Guide Rated Load and Static Moment | |||||||||
Model Code | LM Guide | ||||||||
Block Quantity | 4 | ||||||||
Maximum bearing Load | kN | 3.1 | |||||||
Pitch Moment | Nm | 191 | 287 | 287 | |||||
Yaw Moment | Nm | 191 | 287 | 287 | |||||
Roll Moment | Nm | 218 |
Notes:
- 1. Apk=1.414*Arms; Vpk=1.414*Vrms
- 2. *Ambient temperature 25°C, heat dissipation by natural convection, without heat sink attached.
- 3. Specifications tolerance - inductance +/-30%, all others +/-10% (for motor parameters).
- 4. Peak force and current - 1 second duration
- 5. ** Depend on encoder resolution
- 6. *** Specific accuracy, straightness and flatness requirement, contact PBA for more information.
- 7. For customized stroke length, contact PBA.
- 8. For different motor models, contact PBA.

PLA Open Type
MOTOR MODEL | STROKE (S) mm |
ACTUATOR LENGTH (L) mm |
CARRIAGE LENGTH (A) mm |
SLIDER MASS kg |
MODULE MASS kg |
C2 & C3 | 140 | 352 | 124 | 1.6 | 4.6 |
200 | 412 | 5.2 | |||
260 | 472 | 5.8 | |||
320 | 532 | 6.4 | |||
380 | 592 | 7.0 | |||
440 | 652 | 7.6 | |||
500 | 712 | 8.2 | |||
560 | 772 | 8.8 | |||
620 | 832 | 9.4 | |||
680 | 892 | 10.0 | |||
740 | 952 | 10.6 | |||
C4 & C5 | 140 | 382 | 154 | 1.9 | 5.1 |
200 | 442 | 5.7 | |||
260 | 502 | 6.3 | |||
320 | 562 | 6.9 | |||
380 | 622 | 7.5 | |||
440 | 682 | 8.1 | |||
500 | 742 | 8.7 | |||
560 | 802 | 9.3 | |||
620 | 862 | 9.9 | |||
680 | 922 | 10.5 | |||
740 | 982 | 11.1 |
Notes: 1. Slider Mass = Coil Mass + Carriage Mass
PLA Covered Type
MOTOR MODEL | STROKE (S) mm |
ACTUATOR LENGTH (L) mm |
CARRIAGE LENGTH (A) mm |
SLIDER MASS kg |
MODULE MASS kg |
C2 & C3 | 140 | 352 | 124 | 1.7 | 5.1 |
200 | 412 | 5.9 | |||
260 | 472 | 6.7 | |||
320 | 532 | 7.5 | |||
380 | 592 | 8.3 | |||
440 | 652 | 9.1 | |||
500 | 712 | 9.9 | |||
560 | 772 | 10.7 | |||
620 | 832 | 11.5 | |||
680 | 892 | 12.3 | |||
740 | 952 | 13.1 | |||
C4 & C5 | 140 | 382 | 154 | 2.0 | 5.6 |
200 | 442 | 6.4 | |||
260 | 502 | 7.2 | |||
320 | 562 | 8.0 | |||
380 | 622 | 8.8 | |||
440 | 682 | 9.6 | |||
500 | 742 | 10.4 | |||
560 | 802 | 11.2 | |||
620 | 862 | 12.0 | |||
680 | 922 | 12.8 | |||
740 | 982 | 13.6 |
Notes: 1. Slider Mass = Coil Mass + Carriage Mass