| Two-level dependent lift | A motor-driven hydraulic or mechanical system raises and lowers a platform between ground level and an elevated position. | One vehicle is parked on the platform above another vehicle-level space. The lower vehicle generally needs to be moved before the upper vehicle can be accessed. | Platform, lifting posts or guide structure, drive system, controls, and mechanical safety locks. | Requires a suitable ceiling height, a properly prepared floor, and enough clearance for the vehicles and platform. |
| Four-post platform lift | The platform travels vertically along four supporting posts, commonly using cables, chains, or a hydraulic drive arrangement. | Can store a vehicle above another parking space. Some configurations also use the raised platform for vehicle storage without a second vehicle underneath. | Four posts, runways or platform, lifting mechanism, safety locks, and operating controls. | Platform size and rated load must suit the vehicle. The lift should be installed and used according to its load rating and instructions. |
| Pit-style lift | A platform moves vertically between floor level and a position below or above the surrounding floor, depending on the system design. | Vehicles can be arranged on different levels while the platform helps use vertical space. | Platform, pit or recessed structure, lifting mechanism, guides, controls, and safety devices. | Often requires substantial construction planning, including pit dimensions, drainage, structural support, and access for maintenance. |
| Automated puzzle system | Motorized platforms move horizontally and vertically to reposition vehicles and create an open space for retrieval. | Vehicles are stored in a compact grid. A control system coordinates platform movement to bring a selected vehicle to an access point. | Parking platforms, motors, rails or guides, sensors, control system, and safety interlocks. | Retrieval may involve several platform movements. Access control, system maintenance, and emergency procedures are important. |
| 1. Vehicle positioning | The driver aligns the vehicle on the platform or enters the designated system bay, following position markings and operating instructions. | Correct positioning helps keep the vehicle within the platform’s specified wheel and dimension limits. | Alignment markings, wheel guides or stops where provided, and entry-area controls. | Vehicle length, width, height, weight, ground clearance, and tire position must comply with the lift’s limits. |
| 2. Lift activation | The operator uses a control station or authorized system interface. The drive raises, lowers, or repositions the platform. | The vehicle moves with the platform; it is not driven while the platform is moving. | Electric motor, hydraulic power unit or mechanical drive, controller, and operator controls. | Controls should be used only as instructed. People must stay clear of moving platforms and restricted areas. |
| 3. Securing at the parking position | At the intended position, mechanical locks or other engineered safety devices help secure the platform. Sensors or interlocks may confirm operating conditions. | The platform holds the vehicle at its designated storage level until retrieval. | Mechanical locks, limit switches, position sensors, and safety interlocks, depending on the system. | Safety devices must not be bypassed. Inspection and servicing should follow the manufacturer’s instructions and applicable local requirements. |
| 4. Vehicle retrieval | The operator requests the vehicle or uses the prescribed controls. The system moves the platform to an accessible position before the vehicle is driven away. | Dependent systems may require another vehicle to be moved first; automated systems may reposition platforms to clear a retrieval path. | Controls, drive system, position sensors, locks, and access-area safeguards. | Confirm the platform is fully in its permitted loading or unloading position before driving onto or off it. |