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How do Mechanical VRC Lifts compare to Hydraulic?
Major Points |
CIP Mechanical |
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.