As an important part in industrial production and logistics transportation, the selection of rubber roller is directly related to the operating efficiency and service life of the equipment. Therefore, the correct selection of the appropriate rubber roller is particularly important. This article will from the conveyor roller material, size, load capacity, use environment and maintenance aspects, how to correctly select the appropriate rubber roller.
Key Considerations for Selecting Rubber Rollers
Understand the material characteristics of the rubber roller
There are a variety of materials of rubber roller, common rollers have silicone roller, PU roller, nylon roller and so on. Rollers of different materials have different characteristics and are suitable for different working environments. For example, the rubber roller has good elasticity and wear resistance, which is suitable for light load and low speed occasions. The polyurethane roller has high strength and wear resistance, which is suitable for heavy load and high-speed occasions. Nylon rollers have excellent corrosion resistance and are suitable for wet or corrosive environments. Therefore, when selecting the rubber roller, it is necessary to choose the appropriate material according to the actual working environment and needs.
Determine the size of the rubber roller
The size specifications of the coated roller include diameter, length and shaft diameter. The selection of these sizes should be determined according to the specific requirements and conditions of use of the equipment. For example, on the conveying line, the diameter and length of the roller should be selected according to the size and weight of the conveying item to ensure that the item can smoothly pass through the roller; In mechanical equipment, the shaft diameter of the roller should be determined according to the installation space and load requirements of the equipment. Therefore, when selecting the rubber roller, it is necessary to carefully measure and calculate the relevant size to ensure that the selected roller matches the equipment.
Consider the load capacity of the rubber roller
The load capacity of the roller is the maximum weight it can bear. When selecting rollers, the required load capacity needs to be determined according to the load in the actual application. If the load is too heavy, the roller may be deformed or damaged, affecting the normal operation of the device. Therefore, when selecting the roller, the load factor should be fully considered, and the roller with sufficient load capacity should be selected.
Analysis of the use environment of rubber roller
The use of the environment is also an important factor to consider when choosing a rubber roller. Different working environments have different requirements for rollers. For example, in high temperature environments, high temperature resistant roller materials should be selected; In humid or corrosive environments, corrosion resistant roller materials should be selected. In addition, it is also necessary to consider the impact of dust, oil and other factors on the roller in the working environment. Therefore, when selecting rollers, it is necessary to fully understand the characteristics of the working environment and choose rollers that can adapt to these characteristics.
How to choose the right rubber roller?
Intro
1.1 What is the rubber roller: The rubber roller refers to the roller covered with rubber material on the core material, which is a common accessory in rolling transmission.
1.2 Why use the coated roller: The coated roller has high hardness, excellent wear resistance, and still has high elasticity under high hardness, high surface finish, excellent grease resistance, and good chemical resistance. It can be used in harsh environment such as high and low temperature, dry and wet.
1.3. The main role of the rubber roller: it has a high environmental adaptability.
(1) Improve transportation efficiency.
(2) Shock absorption, protection products.
(3) Reduce noise.
(4) Reduce oil pollution.
(5) High environmental adaptability.
Type and application of rubber coated roller
2.1 Bearing type:
Suitable for use in linear conveying movement
(Optional polyurethane, butadiene rubber, silicone rubber material)
2.2 Trough type:
Use with a belt for clamping or sliding
(Groove size can be customized according to different belt sizes)
2.3 Piping type:
Different length options can be used for rolling or conveying in equipment
2.4 Ring type:
Used with the matching shaft for fixed rotation conveying
2.5 Set screw type:
Use screws to fix the shaft
It can be used for clamping, extruding or pasting
(Optional high temperature (120) polyurethane material)
2.6 Threaded pass type:
Use screws to fix the shaft
Can be used for fixed rotary conveying
2.7 Keyway type:
Use keyway or add screws for fixing
Improved operating load and torque resistance
Suitable for high load conveying, guiding, rolling and so on
(Optional anti-static polyurethane material)
2.8 Ladder type:
Step + screw fixation design
Suitable for built-in baffles and can be used for longitudinal, transverse conveying or guiding roles
The material and characteristics of the rubber roller
3.1 Made of polyurethane vinegar
(1) Excellent wear resistance
(2) Very high mechanical strength
(3) Good surface self-moistening
(4) High elastic protection coefficient
3.2 Silicone material
(1) Excellent low temperature resistance (-70)
(2) Excellent high temperature resistance (150)
(3) Good weather resistance
(4) Low wear resistance and mechanical strength
3.3 Ding Qing rubber material
(1) Excellent oil resistance
(2) Good wear resistance
(3) Limited ability to chemical corrosion and acid and alkali resistance
(4) Poor temperature resistance (high temperature 80, low temperature -10)
3.4 Hyperon material
(1) Excellent ozone resistance
(2) High weather resistance
(3) Good solvent resistance, acid and alkali resistance
(4) Poor tear resistance, mechanical strength is not high
3.5 EPDM material
(1) Strong corrosion resistance
(2) Strong chemical resistance
(3) Strong weather resistance
(4) Excellent hydrolysis resistance
(5) Limited tolerance to oils and fats
The selection of rubber roller working conditions
4.1 Working condition 1: high strength and high wear working condition
Choice: High wear-resistant A90 degree or 95 degree polyurethane (PU) rollers.
4.2 Working condition 2: harsh high temperature or low temperature conditions
Choice: silicone roller (can be used in -70~150).
4.3 Working condition 3: conditions with both temperature requirements and abrasion resistance
Choice: Heat resistant polyurethane (PU) roller (can be used at -20~120).
4.4 Working condition four: corrosive working condition
Option: EPDM (EPDM) roller.
4.5 Working condition five: wet and long-term contact with water conditions
Option: EPDM (EPDM) roller.
4.6 Working condition six: anti-static working condition requirements
Selection:
< both anti-static and wear resistance required > Select anti-static polyurethane (PU) roller;
< Permanent anti-static performance > Select silicone, rubber material anti-static roller.
4.7 Working condition 7: acid-alkaline, ozone working condition
Choice: Hyperon roller.
Note
Choose the right adhesive material
The coating material directly affects the wear resistance, chemical resistance and temperature resistance of the roller. The following are several common adhesive materials and their characteristics:
Polyurethane (PU): wear resistance, oil resistance, good elasticity, suitable for high-load, high-speed operation of equipment, such as conveyor roller, printing machine roller.
Silicone: high temperature resistance, chemical corrosion resistance, often used in food, medicine, electronics industries.
Nitrile butadiene rubber (NBR): Excellent oil resistance, suitable for use in equipment in contact with lubricants or chemical solvents.
Neoprene rubber (CR): good weather resistance, anti-aging, suitable for outdoor or long-term exposure to ultraviolet light equipment.
Natural rubber (NR): Good elasticity, suitable for high impact load environments, such as the paper industry.
Determine the adhesive hardness
Coating hardness is usually expressed by Shore hardness (Shore A or Shore D), and different hardness is suitable for different working conditions:
Low hardness (30-50A): good elasticity, suitable for cushioning occasions, such as paper conveying.
Medium hardness (50-70A): suitable for most industrial applications, such as printing and coating.
High hardness (70-90A): strong wear resistance, suitable for high-load, high-speed roller, such as steel processing.
Consider the application environment
Different working environments have different requirements for chemical resistance and temperature resistance of the coated roller:
High temperature environment: It is recommended to choose silicone or high-performance polyurethane materials with good heat resistance.
Wet environment: Choose materials with excellent hydrolysis resistance, such as neoprene or special water-resistant polyurethane.
Chemical corrosion environment: need to choose acid and alkali resistant or solvent resistant materials, such as fluorine rubber or special silicone.
Focus on the manufacturing process
The manufacturing process of coated roller directly affects its performance and service life, mainly including:
Metal core processing: The roller core needs to be precision machined to ensure concentricity and balance.
Coating process: casting, molding or spraying is used to cover the coating, and ensure that the combination with the roll core is firm.
Curing or curing treatment: improve the physical properties of the material, make it wear resistance to aging.
Surface treatment: According to the requirements of the use of grinding, polishing or pattern processing, improve friction or anti-slip performance.
Choose reliable supplier
High quality suppliers can provide high performance coated roller, while ensuring quality stability and after-sales service. When choosing a supplier, consider the following factors:
Supplier's production capacity and technical level.
Previous customer reviews and industry reputation.
Whether customized services are provided to meet specific needs.
Whether the product has passed the relevant quality certification, such as ISO, RoHS, etc.
Conclusion
Rubber roller is widely used in circuit board industry, printing industry, paper industry, textile industry, steel industry, food processing and transportation industry, electronics industry and so on. Therefore, the selection of the appropriate rubber roller needs to consider the application environment, materials, hardness, temperature resistance, processing accuracy and special needs. Choosing the right material, determining the hardness of the coating, and considering the application environment can not only improve production efficiency, but also reduce equipment maintenance costs and improve production safety.
