Stand-on electric pallet stackers achieve braking through a combination of electrical and mechanical braking, ensuring safety, stability, and precise control in warehouse operations. The main braking methods of stand-on stackers are as follows:
1. Regenerative (Electrical) Braking
When the operator releases the stacker's accelerator or changes direction, the traction motor switches to generator mode, converting the vehicle's kinetic energy into electrical energy. This electrical energy is fed back into the stacker's battery. Regenerative braking provides smooth deceleration and reduces wear on mechanical components.
2. Electromagnetic (Motor) Braking
The electromagnetic brake is integrated into the stacker's drive motor. When the power to the stand-on stacker is cut off (e.g., releasing the accelerator or activating the emergency brake), the brake is automatically applied by spring force and requires power to release. Therefore, it defaults to a fail-safe braking mode in the event of a power failure. This brake is responsible for keeping the stacker stationary on slopes or when parked.
3. Reverse Current Braking
If the operator quickly changes the stacker's direction of travel (forward to reverse or vice versa), the controller applies a reverse current to the motor. This generates a reverse torque, rapidly reducing the travel speed. Reverse current braking is typically used for precise maneuvering in narrow aisles.
4. Emergency Braking via Control Handle
Stand-on stackers are usually equipped with a safety control handle. When the handle is released, moved to the emergency position, or the emergency stop button is pressed, the power to the stacker's drive system is immediately cut off. The electromagnetic brake is instantly activated, bringing the vehicle to a stop.
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