Polyurethane Roller（PU Roller） is used in various industries for its high wear resistance, high bearing capacity, and excellent tear resistance. Equipped with our welding rotator, imported polyurethane material is officially used to coat the roller. Polyurethane roller has the characteristics of high strength, compression resistance, wear resistance, oil resistance, acid and alkali resistance, corrosion resistance, tear resistance, impact resistance, a wide range of hardness, firm adhesion with metal, and no degumming. Polyurethane has good properties such as high load-bearing, shock absorption, and cushioning, can have good adhesion with metal, and has a wide hardness range. Therefore, the rubber roller is gradually replaced by a polyurethane roller and is widely used in welding rotators.
How is the polyurethane roller of the welding rotator manufactured?
Polyurethane rollers are generally made of vulcanized natural rubber, synthetic rubber, gelatin, polyurethane, and other polymers. When making, it is necessary to ensure the composition percentage and heat degree to stabilize the hardness and components. The colloid is uniform and free of impurities through filtration. This is particularly important for polyurethane rollers. In high-speed operation, the force is uniform and the energy transfer is uniform. When expansion or contraction is caused by various factors, it can still be uniform. In this way, only adjustment can reduce or avoid adverse effects.
By heating, pressurizing, and vulcanizing, it is stabilized to reduce the shrinkage of rubber to a smaller extent under external force. The soft and malleable compound is turned into a solid material with a certain softness, which is more suitable for the transmission and transfer of ink.
The key to determining the dimensional accuracy and surface area of cots is especially the radian treatment of alcohol-water roller. The rubber surface looks smooth, but there are many small bulges and depressions under the high-power magnifying glass. These convex and concave parts increase the surface area of the cot, making it have superior ink transfer and transfer performance.
How to install polyurethane on the roller of the welding rotator?
Press the roller of the welding rotator together with the tension bearing and drive it through the friction between the two rollers. If the belt needs to be replaced, the operator can hold the handle above the eccentric wheel, rotate the shaft, rotate the wheel, and push the connecting rod roller to rotate, so as to separate the roller of the roller carrier from the polyurethane and successfully replace the new ribbon roller.
As the polyurethane roller of the welding rotator, industry glue is the key factor of the production process. If there is no formula, the rubber material itself and its formula should be very clear. In the production process, it is difficult to have some quality problems affecting the whole production process. Therefore, on the production side, we must first be familiar with the materials used in polyurethane and their mixed formula, Therefore, in the general production process, the rolling process of the roller frame is very high, and some rollers with different properties and materials can be produced.
Fengwei Machinery provides complete customized solutions.
The construction, selection, and manufacture of welding rotators and rollers of various specifications comply with CE standards. Regularly check all production steps and use only certified materials and accessories, first-class motors, and reducers to ensure the best quality standards of our products. High-grade manufacturing accuracy.
Please kindly measure LETTER MARKED data for precise quotation, which are？
l A = roller width with protruding length
l B = roller width
l C = internal circle diamter
l D = roller diamter
l Amounts of shafts, if needed
l Dimension of shaft
l Optional for rubber or PU coating welding rotator, or metal roller.
Once received, we will offer quotation and roller layout for confirmation.