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Glideforce LightDuty (LD) Linear Actuators
The LightDuty (LD) series of Glideforce linear actuators by Concentric International (formerly Iowa ExportImport) are 12V DC gearmotors that use a worm drive to move a shaft back and forth along its length. The worm drive ensures that the shaft will hold its position even when unpowered and subjected to static loads up to 250 kgf [550 lbs or 2500 N]. Two limit switches safely stop the motor at either end of its range, while integrated diodes allow it to reverse direction after reaching a limit point if the supplied voltage is reversed. The actuators have an allaluminum frame and extension tube, and the entire case is sealed to protect against dust and water (rated IP65).


These actuators are available in several gear ratios and a variety of stroke lengths, from 2″ to 12″, and with optional potentiometers that are linked to the shaft position, for use in feedback systems. The table below shows all of the lightduty linear actuators we carry:
Actuator Type 
Max Dynamic Load 
NoLoad Speed @ 12 V 
MaxLoad Speed @ 12 V 
Current Draw @ 12 V 
Nominal Stroke Length 
With Feedback 
Without Feedback 

LightDuty (LD) 5:1 
15 kgf [34 lbs] 
4.4 cm/s [1.7″/s] 
3.6 cm/s [1.4″/s] 
1.2 A – 3.2 A 
4″  LACT4P12V05  LACT412V05 
12″  LACT12P12V05  LACT1212V05  
LightDuty (LD) 10:1 
25 kgf [55 lbs] 
2.8 cm/s [1.1″/s] 
2.3 cm/s [0.9″/s] 
1.2 A – 3.2 A 
2″  LACT2P12V10  LACT212V10 
4″  LACT4P12V10  LACT412V10  
6″  LACT6P12V10  LACT612V10  
8″  LACT8P12V10  LACT812V10  
10″  LACT10P12V10  LACT1012V10  
12″  LACT12P12V10  LACT1212V10  
LightDuty (LD) 20:1 
50 kgf [110 lbs] 
1.5 cm/s [0.57″/s] 
1.2 cm/s [0.48″/s] 
1.2 A – 3.2 A 
2″  LACT2P12V20  LACT212V20 
4″  LACT4P12V20  LACT412V20  
6″  LACT6P12V20  LACT612V20  
8″  LACT8P12V20  LACT812V20  
10″  LACT10P12V20  LACT1012V20  
12″  LACT12P12V20  LACT1212V20 
Mounting brackets made from machined aluminum or stamped steel are available for attaching the actuators to a structure; two are required for each actuator (the aluminum brackets are sold individually while the steel brackets are sold in pairs).
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Products in category “Glideforce LightDuty (LD) Linear Actuators”
Pololu item #: 2319  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 5:1 gear reduction can lift loads up to 15 kgf [34 lbs or 150 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 43.9 mm/s [1.73″/s] at no load and 36.5 mm/s [1.44″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2318  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 5:1 gear reduction can lift loads up to 15 kgf [34 lbs or 150 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 43.9 mm/s [1.73″/s] at no load and 36.5 mm/s [1.44″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4inch stroke and no feedback potentiometer.
Pololu item #: 2327  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 5:1 gear reduction can lift loads up to 15 kgf [34 lbs or 150 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 43.9 mm/s [1.73″/s] at no load and 36.5 mm/s [1.44″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2326  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 5:1 gear reduction can lift loads up to 15 kgf [34 lbs or 150 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 43.9 mm/s [1.73″/s] at no load and 36.5 mm/s [1.44″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12inch stroke and no feedback potentiometer.
Pololu item #: 3643  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 2inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 3642  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 2inch stroke and no feedback potentiometer.
Pololu item #: 3645  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 3644  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4inch stroke and no feedback potentiometer.
Pololu item #: 3647  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 6inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 3646  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 6inch stroke and no feedback potentiometer.
Pololu item #: 3649  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 8inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 3648  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 8inch stroke and no feedback potentiometer.
Pololu item #: 3651  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 10inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 3650  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 10inch stroke and no feedback potentiometer.
Pololu item #: 3653  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 3652  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12inch stroke and no feedback potentiometer.
Pololu item #: 2303  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 2inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2302  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 2inch stroke and no feedback potentiometer.
Pololu item #: 2305  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2304  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 4inch stroke and no feedback potentiometer.
Pololu item #: 2307  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 6inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2306  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 6inch stroke and no feedback potentiometer.
Pololu item #: 2309  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 8inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2308  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 8inch stroke and no feedback potentiometer.
Pololu item #: 2311  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 10inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2310  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 10inch stroke and no feedback potentiometer.
Pololu item #: 2313  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12inch stroke and a feedback potentiometer that lets you determine where the actuator is in its stroke.
Pololu item #: 2312  
Brand: Concentric 
This 12 V lightduty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 14.6 mm/s [0.57″/s] at no load and 12.3 mm/s [0.48″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12inch stroke and no feedback potentiometer.
Pololu item #: 2314  
Brand: Concentric 
This bracket was designed specifically for the Glideforce LightDuty (LD) linear actuators. It is machined out of a single piece of aluminum and has been tested to 310 kgf [700 lbs or 3100 N] of static load, which is well above the highest static loads the LD actuators are rated for. The mounting pin has a 0.248″ (6.3 mm) diameter. This bracket is sold individually, and two brackets are required for each linear actuator.
Pololu item #: 2328  
Brand: Concentric 
This bracket was designed specifically for the Glideforce LightDuty (LD) linear actuators. It is made from stamped, zincplated steel and has been tested to 310 kgf [700 lbs or 3100 N] of static load, which is well above the highest static loads the LD actuators are rated for. The mounting pin has a 0.248″ (6.3 mm) diameter. This product is a pair of brackets, giving you the two that are required for each linear actuator.
Pololu item #: 2315  
Brand: Concentric 
This 10 ft (3 m) extension cable is designed to work with Glideforce lightduty and mediumduty linear actuators with feedback. It consists of five 20 AWG wires terminated on one end with male power and feedback connectors that securely snap into the actuator’s female power and feedback connectors. The other end has the same female connectors as the linear actuator’s cable; you can cut off these connectors and solder the five wire leads directly to your project, or you use crimp pins and crimp connector housings to make your own custom connector.