we has launched a new series of linear actuator, which specially designed for solar/sun tracker. Considering the difference between off-grid and on-grid system, G-rock launched 3 models: SP, SJ, SA. The CLA range, manufactured by linear motion engineer, is capable of delivering forces from 1500N to 8000N, at strokes of up to 900mm. Featuring DC, double-phase, the compact CLA range is suitable for a wide range of OEM and end-user applications. Unlike other end-of-stroke limit switches that are often mounted externally on the actuator and therefore susceptible to damage, the new CLA cam-operated limit switches form part of the actuator body and are contained within a robust metal housing. For machines that require accurate positioning, it is possible to replace the third switch with a single-turn geared potentiometer to control the position of the actuator throughout the stroke. Lubricated with long-life grease, the CLA range of linear actuators offers unbeatable reliability and virtually maintenance-free operation. Furthermore, for its SP series, Industrial grade rod end, which guarantees smooth traking throught the years Super-grip heavy duty bracket; No more slipping tube, hold up to more than 1200kgs. High precision Antirust quality -30oC cold resistance Super-hold high static load capacity Self-locking function Tracking greatly improves the performance of your PV system. It lets the PV panels follow the course of the sun, so that the panel surface is always in an optimal angle to the sun rays. This realizes highest efficiency. As the study shows, can increase the amount of power generation by 40-50%: Spec. Actuator Type Rod type Stroke length 24" 18" Optimal stroke 21"-23" 15"-17" Static Load 8,000 N Load capacity 2,500 N Dynamic load 4,000 N Speed(Non-load) 4.5mm/sec. Resolution 1.26 pulse/mm Input Voltage 36VDC Load current ≤0.7A Duty cycle 20% Features Adjustable stroke Reed sensor Acme screw Self-locking Water & dust resistant Enhanced antirust quality High performance & service life High precision Option Stroke length:18"/ 24" (inch) Voltage:24 /36 VDC Drive screw:Acme/ Ball Rating Operating temperature:from -15 to 40oC Packaging:25.6kgs/4pcs Inspection