The HOLRY' brand of hybrid linear actuators come in five sizes, from 28 mm square to 86 mm square corresponding to Nema size 11, 14, 17, 23, and 34. Each size has three to four form factors acailable- captive, non captive and an external linear version. There are over twenty different travels per step available, from.0001563 inch (.00397 mm) to .003937 inch (.1mm). Mictostepping can be used for even finer resolution.
Product Paramenters
Features/Benefits
Easy integration: Much easier to integrate into an application; can be coupled with programmable controllers/drivers. More precision: Provide higher level of precision in motion control(speed, torque and force can be modified at different stages during movement).
Safer: Actuators are not susceptible to leakages or contamination - safer, cleaner and more convenient.
Lower cost: More economical in the long run, require less maintenance, are rugged and easy to operate / install, last longer and can be reliably used in different environmental conditions.
Other benefits: With simple quick connect wires and cable, actuators can be easily assembled, are more compact, and operate quietly.
NON CAPTIVE
The non captive screw travels freely in and out of the motor body and does not rotate.
CAPTIVE
The captive has a short screw that is held mostly inside the motor body, coupled to a spline.
EXTERNAL
The external linear motor has the screw affixed to the rotor, so it rotates external to motor body, like a DC motor.
External linear motors are most akin to motorized rails where the nut is replaced by a driven carriage assembly. Non captive is generally the shortest overall length assembly, while the captive is the longest.