As the most commonly used lifting and transporting industrial vehicle, forklift is the most important technical parameter for lifting weight, height and speed, which can fully demonstrate the structural characteristics and working performance of the forklift. In addition to these three indicators, load center distance, running speed, gantry inclination, turning radius and ground clearance are also key technical parameters.

1) Rated lifting weight and load center distance

At present, the maximum lifting capacity in China is 60T. The rated lifting capacity refers to the maximum cargo quality that the forklift is allowed to lift when the gantry is in the vertical position and the center of gravity of the cargo is within the load center distance range, which is often referred to as the tonnage.

The tonnage of common forklifts is generally between 1~10T, the tonnage of storage forklifts is generally 1~3T, the tonnage of common counterbalance forklifts is between 1~10T, and the above 10T is generally a heavy forklift. At present, the largest tonnage forklift in China is 60T, but the number is small, and it is generally used in specific fields.

The load center distance refers to the distance between the center of gravity of the standard cargo with the rated lifting weight specified by the forklift design and the forearm of the vertical section of the fork. Generally speaking, the load center distance of the forklift truck with a rated load of 1~4T is 500mm, and the load center distance of the forklift truck above 5T is 600mm.

2) Maximum lifting height

The maximum lifting height refers to the vertical distance of the gantry, the full lifting of the fork to the maximum height, and the vertical distance from the fork surface to the ground. The higher the lifting height, the higher the center of gravity of the forklift as a whole, so that the stability of the forklift deteriorates, so the allowable lifting weight should be appropriately reduced. The maximum lifting height of a common forklift is generally between 2.5 and 6 meters, and the most common forklift lifting height is 3 meters.

3) Lifting speed

The lifting speed and running speed will directly affect the efficiency of the forklift work. The lifting speed is the average speed at which the fork rises when the gantry is in the vertical position, which is mainly determined by the hydraulic system of the forklift.

Increasing the lifting speed is the trend of forklift development, but excessive lifting speed is prone to cargo damage or machine damage. In general, electric forklifts are limited by the capacity and power of the battery, and their lifting speed is lower than that of internal combustion forklifts of the same lifting capacity. For forklift trucks with large lifting capacity, the lifting speed is lower than that of medium and small tonnage forklifts due to the limitation of hydraulic system. .

4) Travel speed

The driving speed is the maximum speed at which the forklift advances on a flat hard road. Increasing the speed of travel and shortening the travel time have great significance for improving the productivity of forklifts. However, the operation characteristics of the forklift truck are short transportation distances, and many parking and starting times. Excessively increasing the driving speed may cause the engine power to be too large, the economy to be lowered, and it is difficult to use in the operation. Ordinary forklifts typically travel between 10 and 30 km/h.

Reprinted from the network