Feature: This Linkage Mechanism is an automatic constantly reciprocating linear actuator motor, which frequency is Variable. This machine output in an axle, the run speed on axis is Non-uniform. If require speed uniform please don't bid. This machine is Non-standard manual production, the surface is rough. If require surface precise please don't bid. The speed faster, the noise louder. If require quietly, please be careful before bid. Linear motion part is consist of sliding linear ball bearing and steel axle. Axle need adds lubricating oil at regular intervals, in order to limited axle temperature less than 90 degrees, and oil wetness. Due to rotating lump is affected by gravity, the machine go and back speed is different. If you want to control speed, you can add a PWM DC motor speed controller for this. Specification : DIY Design Reciprocating Cycle Linear Actuator Motor Voltage: DC 12V / 24V No-load Speed: 5 10 15 20 30 40 50 60 65 87 100 120 150 200 300 400 500 600 800 1000 Rpm Stroke: 12mm 16mm 20mm Bracket Made of Aluminum alloy, very sturdy construction inside and outside. The outside shell is well build and has excellent access to mounting screws. Widely use for Shale shaker, Vibrating screen, Incense machine ,Squirt machine, Spraying Machine, Pellet machine, Particle-making Experiment and so on. Speed Controller Input Voltage :DC 12-24V Output Current :10A Output Power :240W Voltage range :5%~100% PWM Frequency :18KHZ