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Type of Lift, Fluids, Lifting Force, Cycle Limits, Travel, Noise,…
Type of Lift
- The power system is using hydraulic pump unit.
- This system required hydraulic ram and fluid-driven piston mounted inside a cylinder.
- Hydraulic lifts are suitable to carry passenger and load.
- Usually hydraulic lifts work with 0.75 m/s speed.
- Single cylinder hydraulic lift can carry 1000kg to 10000kg and double cylinder 10000kg to 90000kg.
- Usually the speed of hydraulic lift is 0.75 m/s.
- The system is using steel rope and traction pulley to carry the lift.
- The lift can stay in stationary by using the frictional force of steel rope.
- The signal of lift is sent through the control panel.
- Lift car works with counterweight.
- Residential lift has 7 types, 100kg, 180kg, 240kg, 320kg, 400kg, 630kg and 1000kg.
- The speed are 0.63m/s, 1m/s, 1.6m/s, 2.5m/s.
Fluids
Will eventually leak. Slight seepage is considered normal. This is an environmental issue, as hydraulic fluid is extremely toxic.
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Lifting Force
Electric motor drives 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.
Driven by an electric brake motor cyclo-reducer, which lifts the platforms with cables or chains.
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Travel
High oil temperature, which could lead to a lift shutdown, can cause jerky and inconsistent movement. Precise intermediate stops and leveling are not possible due to hydraulic drift.
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Maintenance
As the unit ages, the hydraulic pump, cylinders, chain, seals, packings, and hydraulic oil will need to be replaced for the lift to continue to move the rated capacity.
The cable will stretch over time, but that is all that will have to be replaced.
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