Shopping cart caster wheels, comfort and safety determines the supermarket shopping car use. Therefore, supermarket shopping cart wheels, is a very critical and important index.
1, The supermarket trolley caster material selection. In general, the choice of supermarket shopping cart casters to ground conditions, to choose the wheel load conditions. For example: the rubber wheel is not resistance acid, oil and other chemicals, and polyurethane and nylon are suitable for variety environment.
2, Supermarket shopping cart caster soft and hardness choice: polyurethane wheel, nylon wheel, high strength polyurethane wheels can be suitable for indoor and outdoor ground driving; driving high strength artificial castor is suitable for hotels, hospitals and other requirements of mute on the ground.
3, As usual supermarket shopping cart wheel diameter more big is more labor-saving. As the supermarket shopping cart casters, how to make customers more effort is very important, because customers certainly does not want to push a heavy cart to purchase goods. Therefore, the supermarket in the selection of shopping cart casters, must choose the wheel large diameter casters.
4, Supermarkets usually have proper temperature,But different places, also should choose different temperature casters material, because cold and high-temperature applications has great influence on casters. If cold area casters should choose the polyurethane material. The experiment proved that polyurethane wheel can be rotate flexibly even at -45 degree centigrade.
5, As the supermarket shopping cart casters, it also must calculate the bearing weight. If the customers to choose the relatively heavy goods, such as rice, castor broken, it will affect the customer's shopping desire. Calculation of bearing weight must know weight transport trolleys, maximum load and the single wheel and quantity, can apply this formula: T=E Z/M*N; T= single wheel or a desired load weight; weight: E= transport cart; Z= maximum load; the number of M= all single wheel and castor; N= safety coefficient (about 1.3-1.5).