Concentric LACT4-12V-5 Linear Actuator: 4" Stroke, 12V, 1.7"/s

Pololu item #: 2318 16 in stock
Brand: Concentric

Price break Unit price (US$)
1 104.95
10 94.46

backorders allowed

This 12 V linear actuator can be used in a variety of heavy-duty applications. The motor has 5:1 reduction gearbox that gives the actuator a dynamic load rating of 34 lbs (15 kg) and a maximum speed of 1.7 in/s (4.3 cm/s), and it is rated to withstand up to 450 lbs when not moving. 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 4-inch stroke and no potentiometer.

Select options:
 Description Specs (9) Pictures (8) Resources (2) FAQs (1) On the blog (0) 
What are the differences between the generic linear actuators and Concentric linear actuators?

The Concentric actuators are very similar to our generic actuators, but they differ in a few ways:

  • The Concentric actuators use different gearboxes to offer different combinations of speed and force while the generic ones use the same gearboxes but different threading pitch on the drive rod.
  • The feedback on the Concentric actuators with feedback pots is better than on the generics in the sense that nearly the full range of the feedback pot is used. On the generic actuators, typically only a subset of the feedback pot range is used (e.g. 10% for the 4" version). This is probably the main way in which the Concentric actuators are better.
  • Concentric actuators have a recommended maximum duty cycle of 25%; the generic actuators have a recommended maximum duty cycle of 15%.
  • Concentric actuators have a static load rating significantly higher than their dynamic load ratings; the generic actuators just have dynamic load ratings, and we do not recommend exceeding those.
  • A generic actuator is less expensive than the comparable Concentric actuator.

Related Products

Mounting Bracket for Concentric Glideforce LD Linear Actuators
Stepper Motor with 28cm Lead Screw: Bipolar, 200 Steps/Rev, 42×38mm, 2.8V, 1.7 A/Phase
Pololu Jrk 21v3 USB Motor Controller with Feedback
Pololu Simple Motor Controller 18v7 (Fully Assembled)
Pololu Jrk 12v12 USB Motor Controller with Feedback
MC33926 Motor Driver Carrier
VNH5019 Motor Driver Carrier
10ft Extension Cable for Concentric LD Linear Actuators

Related Categories

Concentric Glideforce LD Series Linear Actuators
Pololu Jrk Motor Controllers with Feedback
Brushed DC Motor Controllers
Brushed DC Motor Drivers
Motors and Gearboxes
RC Servos
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors