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How to choose proper caster
Calculate load capacity: To calculate the load capacity of various casters., the net weight of transported equipment, maximum load and number of monoculture or caster used must be provide by a monoculture or caster; T=(E+Z)/M*N ;T=load capacity required by a monoculture or caster ; E=weight of transported equipment; Z=Maximum load; M=number of monoculture or caster used; N=safety coefficient(about 1.3-1.5)
Decide the composition of caster: Consider on the size of road, obstacles, remaining substances on the application area (such as iron scraps, grease), surrounding conditions (such as high temperature, normal temperature or low temperature) as well as the load capacity of caster should be taken into account during the decision-making for proper composition of castor, For example, rubber caster is non-resistant to acid, grease and chemical, while super polyurethane caster, high strength polyurethane caster, nylon caster, steel caster and high-hest caster are applicable to different special areas.
Decide caster diameter: The larger the diameter of caster, the easier the movement and the larger the load ability, which can also protect the floor from any damage. The selection of caster diameter should be decided by the load capacity and the starting thrust of conveyor with load.
Decide hardness of caster: Options include nylon caster, super polyurethane caster and high-strength polyurethane caster, high strength artificial rubber caster, iron caster and inflated caster. Super polyurethane caster and high strength polyurethane can meet your transportation requirements for indoor or outdoor movement. High strength artificial rubber caster is applicable to hotel, medical equipment, floor, wood flooring or paved with ceramic tiles on which movement movement required to be quiet with low noise .Nylon caster and iron caster are applicable to uneven ground or ground with iron scalps. Inflated caster is applicable to light load requirement and ground with soft and uneven surface.
Rotary flexibility: The larger the monoculture the more energy saved during rotation. Roller bearing has a higher load and larger resistance during rotation. Monoculture with high quality (bearing steel) ball bearing has a higher load, lighter, more flexible and quieter rotation.
Temperature condition: The operation of caster is greatly effected under low temperature and high temperature, except polyurethane caster, which as flexible and free rotation under low temperature of -45¡æ and high-heat resistant caster, which has easy rotation under high temperature of 275¡æ.
How to choose proper caster holder
Load if caster should be firstly considered in selection. For example, for supermarket, school, hospital, office and hotel, where the floor condition is the good and smooth and the cargo carried is light relatively (load on each caster is 10-14kgs)., electroplated caster holder made of thin steel sheet(2-4mm) after stamping would be proper choice. This kind of holder is light-weighted, flexible operated, mute and beautiful and is classified into duplex ball and simplex ball according to the arrangement of balls. Duplex ball type is recommended for frequent movement or transportation.
As for factory and warehouse, where cargo handling is frequent and the load is heavy (load on each caster is 280-420kgs), duplex ball caster holder made of thick steel plate (5-6mm) after stamping, hot die and welding would be a proper choice.
As for textile mill, motor works and machinery plant where heavy cargo is handled, castor holder made of thick steel plate(8-12mm) after cutting and welding should be chosen due to the heavy load and long distance of movement inside the plant (load on each caster is 350-1200kgs ), the movable caster holder mounted on the bottom plate with flask ball bearing and ball bearing ensures high load capacity, flexible rotation and impact resistance of caster..
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