Most elevators use upper and lower final limit switches as the last line of protection.
The upper final limit prevents the car from traveling too high, while the lower final limit prevents the car from hitting the pit floor.
For many people, removing these switches sounds dangerous.
However, our hydraulic home lifts are designed differently.
The hydraulic cylinder itself determines both the upper and lower travel limits.
When the cylinder is fully retracted, the platform still stays about 20–30 mm above the pit floor. The cabin can never touch the bottom.
When the cylinder reaches its maximum extension, the platform still remains within the safe travel zone. The cabin cannot hit the top of the shaft.
Because every lift is custom-built, we calculate the exact cylinder stroke according to the customer's required travel height.
This means the maximum and minimum positions are mechanically limited.
The advantages include:
Fewer electrical components
Less wiring
Simpler installation
Reduced maintenance
Fewer possible failures
Our current controllers still provide an upper limit input, and in some projects we continue to install an upper limit switch as an additional safety layer.
However, it is no longer the primary protection.
For low-speed hydraulic home lifts, mechanical design can sometimes provide a safer and more reliable solution than additional electrical components.
Good engineering is not always about adding more devices.
Sometimes it is about eliminating the unnecessary ones.
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