Polyurethane roller Full-time JobAug 4th, 2022 at 03:23 Financial Services Salonta 33 views
Casters are a general term, including movable casters, fixed casters and movable casters with brakes. The movable caster is also called the universal wheel, its structure allows 360-degree rotation; the fixed caster is also called the directional caster, it has no rotating structure and cannot be rotated. Usually two kinds of casters are used in combination. For example, the structure of the trolley is two directional wheels in the front, and two universal wheels in the back near the push armrest. There are casters of various materials, such as pp casters, PVC casters, PU casters, cast iron casters, nylon casters, TPR casters, iron core nylon casters, iron core PU casters, etc. Ergonomic casters are designed with consideration for the operating environment and the task to be performed so that any injurious effects on the operator are minimized. Long-term repetitive actions involving resisting casters can contribute to strain injuries. Improper specifications can also contribute to reduced service life of casters. Many parameters play a role in how well the caster performs. Parameters such as tire hardness, tread width and shape, the length of the trailing offset (the 'caster') and wheel diameter all affect the effort required to start the platform moving. Harder wheels will make the caster easier to roll by reducing deformation resistance. A less inflated tire offers more deformation resistance and thus more effort is required to move the attached platform. Turning effort is affected by the amount of caster and by the wheel diameter. Enhancements to traditional caster design include toe guards, track wipers, reinforced legs, steering tubes, swivel locks and brakes, all implemented in an effort to reduce operator injuries in the workplace.
PU wheel is also called PU perfusion wheel. Strictly speaking, PU is also a kind of plastic, but additives are added in the production process, so the performance is more superior, and of course the production cost also increases. Features of PU perfusion wheels: Elasticity can play a certain shock absorption effect (even better than inflatable wheels), good grip, not easy to slip, more wear-resistant, and good comfort. PU material can be applied to the fabric or weight-bearing parts of footwear, such as high-end inline wheels, skateboard wheels, PU pads, luggage wheels, shopping cart wheels and other purpose wheels, in sports products such as drift boards, vitality boards In some sports and leisure products favored by teenagers, such as ice skates, twisting shoes, etc., the wheels are generally PU wheels.
Rollers, cylindrical parts, are divided into driving and driven rollers, and are used in various transmission and conveying systems such as printing machines, digital printers and other conveying equipment, papermaking and packaging machinery. Most of them are made of stainless steel, steel castings, and solid forged alloy steel cores. According to the lagging material, there are natural rubber rollers, nitrile rubber rollers, polyurethane rollers and so on. Equipment roller printing, like newspaper printing, is a high-speed process that can produce more than 6,000 yards of printed fabric per hour. This method is also called mechanical printing. In roller printing, the pattern is printed on the fabric by an engraved copper drum (or roller). The copper cylinder can be engraved with very delicate fine lines arranged closely, so that very fine and soft patterns can be printed.