How do Mechanical VRC Lifts compare to Hydraulic?
|Fluids||Will never leak.||Will eventually leak. Slight seepage is considered normal. This is an environmental issue.|
|Lifting Force||Driven by an electric brake motor cyclo-reducer which lifts the platform with cables or chains.||Electric motor drive the hydraulic pump, forcing fluid thru a system of control valves, flexible hoses, and cylinders. Higher applications must also add cables or chains, increasing complexity and maintenance.|
|Cycle Limits||100% duty cycle.||10 cycle per hour average.|
|Travel||Steady & smooth. Precise positioning with limit switches.||High oil temperature which could lead to the lift to shutdown, can cause jerky and inconsistent movement. Precise intermediate stops and leveling not possible due to hydraulic drift.|
|Noise||Very quiet.||Higher noise level. High pitched whine.|
|Maintenance||The cable will stretch over time, but that is all that will have to be adjusted or replaced.||As the unit ages, the hydraulic pump, cylinders, chain, and hydraulic oil will have to be replaced for the lift to continue to move the rated capacity.|
The Choice: By far, the mechanical lift is the better choice for quality, longevity and less than $500 annually in maintenance costs.