Hello, I have to build a device to protect a laser sensor from environment (high temperature dust). The idea is to use a linear actuator to open and close a small gate by rotation. The choice of linear movement is due to romm avaiable around the laser sensor. We need 20 to 30mm displacement to get a 0-90° rotation. The system would be activated thru an arduino card.
I would like to know the difference between the different types you propose: PQ12, L12… and what would be your advise in selecting the most appropriate one.
thanks for your answer
Jean-Luc
Hello @jbyd3h and welcome to the community!
Here’s the description of the PQ12 and L12 models:
PQ12-Smallest Micro Linear Actuator
Weighing in at just 15 grams, the PQ12 is incredibly light as well as compact. The PQ12 series of micro linear actuators are ideal for applications requiring precise positioning and compact size. The PQ12 is available with end of stroke limit switches or with linear feedback along the full length of stroke. A complete closed loop system can be realized with the addition of an LAC board. The affordably-priced PQ12 is the most powerful actuator of it’s size. This is why it has become a popular choice for OEM manufacturers as well as arduino and RC hobbyists.
L12 Micro Linear Actuators
Our L12 series electric micro linear actuator is an axial design that utilizes a powerful PMDC motor and a rectangular cross section for increased strength. But by far the most attractive feature of this actuator is the broad spectrum of configurations available. Actuonix Motion Devices L12 is available in four stroke lengths: 10mm (0.4", Except ‘I’ and ‘R’), 30mm (1.2"), 50mm (2") or 100mm (3.9"), along with three force/speed combinations of 50:1, 100:1 or 210:1 gearing.
From what I could find the PQ12 line only offers a 20mm strokes but the L12 offers a wide variety (10/30/100 mm). For selecting the most appropiate one you will have to consider the speed and force needed for your specific application. Maybe these tutorials can help you out a little:
Keep these things in mind before picking one and choose the one which meets your requirement.
- Step 1: Determine the Amount of Force Required. What is the weight of the object to be moved or lifted in your project?
- Step 2: Determine the Distance the Actuator Needs to Move.
- Step 3: Determine the Speed Required.
- Step 4: Based on Your Project Choose a Type of Linear Actuator.