News1. Selection of wheel material. -Generally speaking, the casters of supermarket shopping carts should be selected according to road conditions, wheel load and other conditions. For example, rubber wheels (PVC) cannot resist acids, greases and other chemicals, while polyurethane and nylon are suitable for different environments;
2. The choice of soft and hard wheels: super polyurethane vinegar wheels, nylon wheels, and high-strength polyurethane wheels can be suitable for indoor and outdoor ground driving; High-strength artificial casters are suitable for hotels, hospitals and other floors that require silence. on the road;
3. The bigger the wheels of the supermarket shopping cart, the more labor-saving. As a supermarket shopping cart caster, how to make customers more labor-saving is particularly important, because customers do not want to push a heavy cart to buy goods. Therefore, when the supermarket chooses the casters of the shopping cart, it must choose the casters with large wheel diameters.
4. The temperature of the supermarket is relatively suitable, so when choosing casters, the temperature requirements are relatively less. However, in different places, you should also choose caster materials suitable for different temperatures, because the harsh and high temperature occasions have a great impact on the casters. If you are in the north, you should choose casters made of polyurethane. Experiments have proved that polyurethane can still rotate flexibly even at a low temperature of minus 45 degrees;
5. As a supermarket shopping cart caster, its load-bearing capacity must also be calculated. If a customer buys a relatively heavy product, such as rice, the caster fails, which will affect the customer's desire to shop. To calculate the load weight, you must know the self-weight of the transport trolley, the maximum load and the number of single wheels used, you can apply this formula: T=E+Z/M*N; T = single wheel or required carrying weight; E = dead weight of the transport trolley; Z = maximum load; M = number of all single wheels and casters; N = safety factor (about 1.3-1.5).
