A Comprehensive Guide to Roller Material Characteristics

Jan 09, 2024

Polyurethane Roller

The general industry collectively refers to PU glue, which is divided into two systems: TPU and CPU in terms of materials and processes;
TPU is thermoplastic polyurethane, which is commonly realized by open-mold injection molding process. CPU is cast polyurethane, and the process is manual vulcanization and molding. The main application properties of polyurethane are high mechanical strength and high wear resistance. Comparing these two properties, Regular CPU is better than TPU material;
In addition to conventional polyurethane, there are also the following extended materials

Polyurethane Roller

1. Hydrolysis-resistant polyurethane roller
Standard polyurethane has weak hydrolysis resistance. In some working conditions where cleaning and disinfection require long-term contact with water quality, polyurethane with polyether system can be used, which can effectively extend the service life of the product;

2. Heat-resistant polyurethane roller
The temperature resistance of standard polyurethane is 70℃, and the temperature resistance of heat-resistant polyurethane can reach 120℃, which can meet the temperature resistance requirements of transmission or conveyor wheels in some working conditions;

3. Anti-static polyurethane roller
By adding antistatic agents during the production process, the surface resistivity of polyurethane with Shore hardness A90 can reach 4.0*109Ω·M, and the surface resistivity of polyurethane with Shore hardness A50 and A70 can reach 1.0*108Ω·M;
(Anti-static polyurethane can only provide time-effective anti-static. If permanent anti-static is required, rubber material can be selected)


Silicone Roller

Silicone material rollers are generally made by molding technology. The conventional silicone material characteristics focus on temperature resistance and weather resistance. In addition to conventional silicone, there are also silicone materials that correspond to the extension of different industries:


1. Food grade silicone roller

It has the material properties of conventional silicone, and must meet food-grade requirements in terms of raw materials and processes. It is often used in the medical and food industries to transport, roll, or extrude workpieces. Food-grade material reports can be provided on the raw materials;

2. High temperature resistant silicone roller

Conventional silica gel generally has a temperature resistance of 150°C, and high temperature resistant silica gel can reach 330°C. Commonly used cases are in baking lines;

3. Clean silicone roller

Clean silicone has a sticky surface and can be made of zero silicone oil silicone, butyl silicone, or anti-static silicone. It can be made into ultra-high viscosity, high viscosity, low viscosity, etc., and can quickly remove tiny particles produced during the production of various products. Particles and impurities can also be used with sticky paper to remove dust;

4. Anti-stick silicone roller

Made of anti-stick silicone raw material, the material can prevent dust and impurity adsorption, and is often used in the packaging industry for rolling and winding masking tape; the anti-stick material can also be food-grade or anti-static materials;

Rubber Roller

Rubber rollers have good wear resistance and excellent weather resistance
The rubber material can also be extended to the following:


1. EPDM rubber roller

EPDM rubber is a type of ethylene-propylene rubber. The material has corrosion resistance, acid and alkali resistance. It is currently widely used in the lithium battery industry and can effectively avoid electrolyte corrosion;

2. Nitrile rubber roller

Nitrile rubber has excellent oil resistance and good wear resistance, and is often used to transport and transmit workpieces in grease working conditions;

3.Hypalon rubber roller

The material itself has excellent ozone resistance and weather resistance, and can be used in a certain concentration of ozone environment for a long time;

4. Fluorine rubber roller

Fluorine rubber material can be used in a variety of complex working conditions, and has various properties such as temperature resistance, hydrolysis resistance, corrosion resistance and radiation resistance. Special fluorine rubber can meet the requirements of clean level use;