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Standing Firm


With efficient load handling in high rack warehouses, calculations come down to the millimetre. Very narrow aisle trucks are used for working at great height. The aisles are narrow and the distances to the rack are calculated very precisely. Because of that, even the slightest unevenness in the warehouse floor can become a problem and cause the truck to oscillate dangerously.Before commissioning a new VNA truck, a service technician must ensure that there are no safety risks attached to driving on any of the warehouse floors. If the floors are uneven, the technician must reduce the maximum speed of the truck: This results in lower handling performance and economic losses.This is a problem which many warehouse operators had to contend with in the past, but Linde Material Handling now offers an innovative solution with its Active Stability Control (ASC) assistance system for the K truck.

The K is Becoming Even More Efficient

The very narrow aisle K truck enables top handling performance when handling goods in high rack warehouses. The combination truck is used in very narrow aisles of up to 1400 mm and achieves a maximum lifting height of 18 meters. The truck lifts very quickly (up to 0.6 m/s) and can accelerate at the same time. It can be driven at very high speeds even at high lift levels, and can reach up to a maximum of 14 km/m under mechanical control.The K has a variety of intelligent safety and assistance systems which support the driver to store and retrieve goods quickly and easily. Active Stability Control enhances these systems and makes the K even more efficient: The system recognises unevenness between the left and right sides of the aisle and automatically offsets impacts and vibrations. This enables the truck to achieve its maximum handling performance even on less than perfect floors.

Top Speed, Top Performance

There are specific conditions which very narrow aisle trucks must meet in order to guarantee optimum handling performance and maximum safety. For maximum performance, floors must meet the requirements of the VDMA standard “Floors for use with VNA trucks” and adhere to the tolerances stipulated therein. If the floor conditions in the warehouse do not meet these requirements, trucks cannot work at maximum performance and the handling performance suffers. Because Active Stability Control compensates for the unevenness, the K truck can take advantage of its maximum speed even on floors that do not meet the optimum requirements.

How Active Stability Control Works

Active Stability Control is based on a sensor-controlled, electromechanical system. Rollers scan the floor in front of the truck’s load wheels for any unevenness. If the system detects unevenness between the left and right sides of the aisle, the load wheels adjust very quickly and offset the unevenness of the floor. This ensures the truck’s stability while it is being driven and significantly reduces any rocking of the mast.

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