The main difference between manual unlock and electric unlock of 2 post car lift is the operation mode, application scenario and functional characteristics, the specific comparison is as follows:
1. Operation mode
- Manual unlock
- Manual operation of mechanical devices (e.g. manual rope pulling) is required.
- Common design: hydraulic release valve or mechanical locking mechanism, can still operate in case of power failure or failure.
- Example steps: Pull the release lever → release hydraulic pressure → Slowly lower the lift.
- Electric unlock
- Automatic control by motor or solenoid valve, one-click operation (button).
- Rely on the power system, usually need to be connected to the power to work.
- Example steps: Press release button → solenoid valve power → hydraulic system pressure relief → automatic drop.
2. Application scenario
- Manual unlock
- Power failure/fault emergency: The vehicle can be safely lowered in case of power failure.
- Low cost maintenance: simple structure, easy maintenance, suitable for places with limited budgets.
- High reliability: no electronic components, low failure rate.
- Electric unlock
- Efficient and convenient: suitable for frequent operation of the maintenance workshop, improve efficiency.
- Integrated design: It can be linked with vehicle positioning system and safety lock, and has a high degree of automation.
3. Safety and reliability
- Manual unlock
- Advantage: Not dependent on electricity, more reliable in an emergency.
- Disadvantages: The operation is physically demanding and may not be as accurate as electric (such as the risk of falling too fast).
- Electric unlock
- Advantage: Easy to operate and can be combined with sensors (such as load detection) to enhance safety.
- Disadvantage: It fails when power is powered off. You need to manually unlock it as an emergency solution.
4. Cost and maintenance
Manual unlock: Simple structure, low purchase and maintenance costs.
- Electric unlock: the price is higher, and the circuit and solenoid valve need to be checked regularly.
5. Typical applications
- Manual unlock: small repair shop, 4S shop spare lift, low frequency scenarios.
- Electric unlock: efficient environments such as large repair centers and assembly lines.
Summary and suggestion
- Priority electric unlocking: If the pursuit of efficiency and power stability, electric is more convenient.
- Mandatory Manual backup: To ensure safety, whether powered or not, manual unlocking is a key emergency configuration (in accordance with safety standards such as ANSI/ALI).
The choice requires a balance of frequency, budget and security needs, and most commercial lifters are equipped with both unlocking methods to cope with different situations.
