The LIFT TECH automated door opener is specifically designed for heavy, insulated trailer doors used in reefer trucks and trailers. Due to their weight, even a properly sprung insulated door can cause strains to operators who repeatedly have to open and close the door. Because of this, many drivers frequently leave their trailer door open during a delivery. This practice dramatically increases the load on the refrigeration unit, and can cause the unit to conserve up to four times as much fuel to operate than if the door is closed between loads. The LIFT TECH door opener can save fuel, reduce theft, and lower the risk of strains or sprains on the job.