1. First of all, choose the right material: the materials of general casters are: polyester, vulcanized rubber, polyurethane, synthetic rubber, transformer core polyurethane, cast iron, plastic, etc. Polyurethane wheels can meet your transportation requirements whether driving on indoor or outdoor floors; synthetic covers are suitable for hotels, medical equipment, floors, tile floors, etc., which require low noise and quiet roads when walking; nylon polishing wheels and steel wheels are suitable for uneven roads or places with tinplate, iron pins and other materials on the floor.

2. How to correctly choose a caster support: Generally, when choosing a good caster support, you must first consider the weight that the caster can be installed, such as shopping malls, schools, hospitals, offices, hotels and other areas. Because the road surface is good and smooth and the transported goods are relatively light (each caster is installed at 50-150kg), it is appropriate to choose a 3-4mm cold-rolled steel plate stamping electroplating process side frame, which is light, easy to operate, silent and beautiful. This electroplating process side frame can be divided into single-row and double-row balls according to the arrangement of steel balls. If it is often moved and transported, single-row balls should be used; in places such as factories and warehouses, goods are transported frequently and are heavy (each caster is installed at 150-680kg), it is appropriate to use a single-row double-row steel ball side frame made of carbon steel plate 5-6mm stamped, hot-forged and welded; if it is widely used to transport hanging objects such as textile processing plants, automobile factories, machinery factories and other areas, because the load is heavy and the travel distance is long (each caster is installed at 700-2500kg), the side frame made of carbon steel plate 8-12mm laser cutting and welded should be selected. The movable side frame uses a flat bearing on the bottom plate, so that the caster can have high load, flexible rotation, impact resistance and other functions at the same time.

3. How to calculate the load-bearing capacity of casters: In order to better predict the load-bearing capacity of various casters, it is necessary to determine the weight of the handling equipment itself, the maximum load and the number of commonly used casters. The load capacity of a caster is calculated as follows: T=(E Z) / M × N: T=the load capacity of a caster; E=the weight of the conveying equipment itself; Z=maximum load; M=the number of commonly used casters; N=safety performance (about 1.3-1.5).

4. Select the diameter of the caster: Generally, the larger the wheel diameter, the easier it is to move, the greater the load capacity, and at the same time, the better it can protect the road from damage. The use of wheel diameter size should take into account the total weight of the installation and the starting force of the electric transport truck under load.

5. Ensure the wheel's rotation flexibility: The larger the wheel, the easier it is to rotate. The bearing has a larger load capacity and less pressure when rotating. Therefore, after installing high-quality bearings, it can carry heavy loads, rotate more lightly, and be flexible and quiet.

6. Product temperature conditions: Cold and high temperature conditions have a great impact on casters, so you should choose suitable casters according to your own transportation environment. For example, polyurethane wheels can rotate flexibly and easily at ultra-low temperatures of minus 45 degree , and heat-resistant wheels can rotate easily at high temperatures of 270 degree .