Common problems that should be paid attention to in the selection of cold storage forklifts

Common problems that should be paid attention to in the selection of cold storage forklifts

With the development of the Chinese economy and the increase in the urban population, the consumption level of the people continues to increase, and the demand for refrigerated food in the society is also showing explosive growth.

　　As a key equipment for logistics handling in the cold chain industry, electric forklifts play a very important role in the operation of the cold chain industry. Due to the particularity of the cold chain industry, the use of electric forklifts must take into account its ability to work in low temperature environments. When using an electric forklift in a low temperature environment, the following aspects should usually be considered.

　　 1. The influence of low temperature environment on battery capacity

　　 The battery capacity calibration is based on an ambient temperature of 20°C and standard air pressure. The lower the ambient temperature, the smaller the actual battery capacity. Generally speaking, in a low temperature environment of -20℃, the actual capacity of the battery is only 80% of its nominal capacity. Therefore, an electric forklift that can meet the usage time requirement in a normal temperature environment may not meet the usage time requirement in a low temperature environment. The battery capacity needs to be increased appropriately.

　　 2. The influence of temperature difference on electric forklifts

　　In many cases, electric forklifts need to work alternately in low temperature and normal temperature environments. In this case, it is easy to produce condensed water, thereby causing damage to electrical components. The design and maintenance of the forklift must take this into consideration, otherwise the electric forklift will likely fail frequently and cannot be used normally.

　　3. The influence of humidity on the car body

　　The humidity in low-temperature cold storage is often high. Some parts and structural parts of electric forklifts are prone to corrosion. This requires that electric forklifts must be properly protected to avoid serious corrosion or even damage.

　　4. Requirements for non-slip in cold storage environment

　　 The humidity in the cold storage is relatively high, the ground is also slippery, and there may even be freezing. In this case, the forklift must have good anti-skid ability. Cold storage forklifts are generally equipped with anti-skid tires, but this is often not enough. Since the forklift is carrying a heavy load on the front wheels and a small load on the rear wheels, the friction between the rear wheels and the ground becomes very small, resulting in side slips. Therefore, when selecting electric forklifts for cold storage, it is necessary to consider selecting a larger tonnage model, so that a large rear wheel load can be maintained after the load is loaded, and tire slipping can be avoided.

　　 5. The influence of low temperature environment on hydraulic system

　　Hydraulic oil and hydraulic high-pressure hoses used at room temperature tend to thicken and become brittle at low temperatures, so they are not suitable for use at low temperatures. Therefore, electric forklifts used in cold storage must use special hydraulic oil and high-pressure hoses to avoid malfunctions and safety accidents.

　　 6. The influence of low temperature environment on mechanical system

　　Lubricating oils and greases used at room temperature will change their characteristics at low temperatures and are not suitable for use at low temperatures. Special lubricating oil and grease should also be used for this part. In some precision components of electric forklifts, such as micro-opening, sensors, precision bearings, etc., also need to use specially designed accessories.