#rollerfactory

[futianroller]

Teflon Coated Cylinder Drums for Digital Printers. Teflon rollers are known for their non-stick, chemical-resistant, low-friction, and high-temperature tolerant properties.

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The steel poly-vee rollers for logistics and conveyor systems. The precision ball bearing is pressed tightly into the steel bearing housing for maximum durability. The steel poly-vee belt rollers have a greater load capacity compared to plastic ones.

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Rubber Coated Rollers for Conveyor Systems. Futian Roller produces customized conveyor rollers, idler roller, conveyor pulley, tension roller, tension drum, drum roller, drive pulley, drive drum, head pulley, tail pulley, tension pulley, drum pulley, return roller, return drum, etc.

Website: www.rollerft.com Email: info@rollerft.com Whatsapp: +86 135 6716 4040

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Stainless Steel Rollers for Digital Printing Machines. We could provide stainless steel rollers made out of Austenitic stainless steel such as 304L and 316L, Duplex stainless steel such as 2205, 904L, Super Austenitic-Steel – depends on where the roller is used.

Website: www.rollerft.com Email: info@rollerft.com Whatsapp: +86 135 6716 4040

[futianroller]

Hongli is the only female worker 👷‍♀️in our Futianroller Workshop.

And she is responsible for the package of the roller and assists the quality inspector in inspecting the roller. Most people think that women cannot be competent to such heavy work, but Hongli made it.👍 No matter how tired or dirty, she still gives her best to do the best.

Thank you, Hongli, for your dedication. Let's continue to work hard and keep going! 💪Good luck!

[futianroller]

Chrome Plating Distribution Roller for Printing Press. The Distribution Roller in a printing press is crucial for evenly distributing ink or water across the printing plate or blanket. This ensures consistent print quality and helps prevent issues like ink starvation or overinking.

👇👇👇 💻Website: www.rollerft.com ✉ Email: info@rollerft.com 📞Whatsapp: +86 135 6716 4040

#futianroller#rollerfactory#chromeplating#cylinder#printingroller#distributionroller#drum#guideroller

[futianroller]

The Effect of Zinc Plating on Roller

Zinc plating of roller refers to the surface treatment technology of plating a layer of zinc on the surface of roller for aesthetic, rust prevention, etc. In the roller industry, zinc plated rollers are widely used. Here are some information about the effect of zinc plating on roller.

Corrosion protection: The zinc coating on the roller can prevent corrosive substances from corroding the roller. When the zinc coating is applied on the surface of the roller, it will form a protective layer of air and moisture resistant zinc oxide. Since the roller cannot be exposed to the external air or moisture under the protection of the zinc plating, it can prevent corrosion and reduce the probability of rust.

The picture following is customized zinc plated roller made by FUTIAN ROLLER.

Aesthetics: Zinc plated rollers usually appear to be smooth and shiny, which can play a role in aesthetics.

Cost effective: Zinc plating is a relatively simple and low-cost electroplating process, which can reduce the cost of producing zinc-plated roller.

The conclusion can be made from the article above that the role of roller zinc plating is to prevent roller corrosion, aesthetics and reducing cost. Meanwhile, the zinc coating is not easy to change in dry air, it will form a dense protective layer on the surface in a humid environment, which can effectively protect the roller.If you need zinc plated roller or more types of rollers, please consult Futian Roller.

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Inspection Standards for Rubber Rollers

Rubber roller (also called rubber cylinder, rubber roll), is a product made of roller core and the rubber layer that covers on the core. Rubber coated rollers are widely used in printing, paper making, textile, converting, plastic film, grain processing, metallurgy, logistics and other industries. The inspection standards of rubber rollers mainly include rubber hardness, roller precision, roller surface roughness, wear resistance, aging resistance, high temperature resistance, low temperature resistance, impact performance, tensile performance, thermal conductivity, corrosion resistance, electrical properties, resilience, etc. In this article, FUTIAN ROLLER will briefly introduce the inspection of rubber hardness, roller precision, aging resistance and elasticity of rubber roller.

1、Rubber hardness

The rubber hardness of the roller refers to the performance of rubber roller’s resistance to the measuring instrument probe under given conditions. The hardness of rubber roller, which is usually expressed by Shore hardness, will affect its functions such as shock resistance and adhesion. However, it should be noted that higher hardness of rubber roller does not mean better quality. In some industries, rubber roller of low rubber hardness is more favorable.

The picture following is customized wide format EPDM rubber coated rollers for printing machine made by FUTIAN ROLLER.

2、Precision of rubber roller

1) Diameter of rubber roller: the diameter is usually measured with micrometer, vernier caliper, etc.

2) Roller cylindricity: the cylindricity of small rubber rollers can be measured on equipment such as three coordinates. While currently there is no rather good way to measure the cylindricity of larger rollers directly. Generally, we use the maximum difference between the change of roller diameter and runout as the roller cylindricity data. Now the cylindricity of rubber coated roller manufactured by Futian Roller is not more than 0.05mm.

3) Runout of roller: in the inspection standards of rubber rollers, the circular run-out represents the shaking degree of rubber coated roller during operation, which is usually measured with a dial indicator.

3、Aging resistance of rubber roller

To test this performance, it mainly needs to prolong the ultraviolet light treatment time, and generate high temperature to aggravate the oxidative cracking of the rubber roller. Then the aging resistance can be obtained by recording the aging time and degree of the rubber roller.

4、Elasticity of rubber roller

Pressurize the rubber roller in the static state until indentation occurs, and record the time when the indentation disappears. The shorter the time, the better the elasticity is.

It should be noticed that affected by changes of environmental factors such as temperature and humidity, the performance of rubber coated roller will change accordingly. Therefore, the rubber cylinder’s performance must be measured and compared in the same conditions.

Futian Roller can produce customized polyurethane rubber covered rollers, silicone rubber sleeves, EPDM rubber rollers, NBR, SBR, Hypalon rubber rolls and other types of rubber coated rollers. If you need customized rubber covered roller or more precision rollers, please feel free to contact FUTIAN ROLLER.

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What Are the Uses of Rubber Rollers?

Rubber rollers are widely used in paper making, textile, printing, converting, plastics, logistics conveyor and other industries. Here we take a look at the uses and functions of rubber rollers in some industries.

1. Paper making rubber roller

Generally, there are about 70 pieces of rubber rollers of different sizes used in one paper making machine. It includes pressing rubber roller and various auxiliary driven rubber coated rollers, which are used in different sections of the paper making machine and used for squeezing water, pressing, etc.

2. Rubber coated rollers for textile printing and dyeing

Textile printing and dyeing machinery also needs many rubber coated rollers. They are divided into two categories: driving roller and driven rolls. According to different purposes, there are cloth guide roller, winding roller, pressure roller, sink roll, squeeze roll, dyeing feeder roll, etc.

3. Printing rubber roller

There are mainly two categories of printing cylinder: hard cylinder and soft cylinder, which are used for pressing, ink mixing and ink transmission in printing machinery. The printing rubber rollers have the features of good elasticity, high oil resistance, solvent resistance, wear resistance and shape stability.

The picture below is customized EPDM rubber coated roller for carbon fiber production line.

4. Rubber rollers for grain processing

Rubber roller is the main accessory of rice huller. Generally, there are two rubber rollers in the equipment of rice huller, and the two rubber coated rollers can squeeze, tear and peel the rice between the two rollers through reverse unequal speed rotation, so as to achieve the goal of rice hulling.

5. Plastic processing rubber roller

Rubber coated rollers are used in various plastic processing machines, including laminating machines, blown film extrusion machine, etc.

Besides the above application and uses, rubber covered rollers can also used in many other industries. If you need customized rubber coated roller, please feel free to contact FUTIAN ROLLER.

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Rubber Roller's Proper Use And Maintenance

Proper use and maintenance of rubber roller can prolong the service life of it, improve the durability and production efficiency. In this article, FUTIAN ROLLER will discuss the correct use and maintenance of rubber roller. ​

Correct use of rubber roller

Assemble the bearings properly

Select the bearings whose specifications and models meet the design requirements. During bearing assembly, apply a layer of lubricating oil on the surface, and then use the special sleeve to evenly force the bearing, so that it can be installed in place smoothly. In order to avoid damage to the bearing, do not apply force directly on the bearing surface.

The picture below is customized EPDM rubber coated transport roller made by FUTIAN ROLLER.

2. Regulate the working pressure of rubber roller

In the process of operating, proper pressure must be maintained between rubber rollers and the machines.

3. Check the rubber roller and bearings regularly

Check the quality of rubber roller and bearings regularly, if the bearing becomes flexible, it must be replaced immediately. If the roller doesn’t work well, it should be repaired or replaced.

Maintenance of rubber roller

1. Keep lubricated

Rubber coated rollers should be lubricated regularly. Or it will cause the wear of roller shaft head and bearings and lead to the poor production quality. If there is no effective lubrication during operation for a long time, it will also cause the heating of the bearing and shaft, which will lead to the rubber surface worn and crack.

2. Cleaning of rubber roller

The surface of high quality rubber roller is generally smooth and clean. However, due to the long-term contact with industrial materials, the rubber roller surface will inevitably have residues accumulated. So in daily maintenance of rubber roller, cleaning should be attached great importance to.

3. Regular maintenance 

After 2 to 3 months of use, the diameter of rubber roller will gradually become smaller, which will affect the accurate transmission of production materials. Now the rubber roller shall be maintained and the pressure between rollers shall be readjusted.

This article is about rubber roller’s proper use and maintenance, if you have more questions about rubber covered roller, please feel free to contact FUTIAN ROLLER.

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Reason Analysis for Degumming of Polyurethane Rubber Roller

The article followed will list some reasons of rubber layer’s degumming.  

Polyurethane rubber rollers have many great features: high mechanical strength, good resistance to wearing, aging, oil, etc. Due to these advantages, PU rubber rollers are widely used in conveyor system, paper making, chemical fiber, plastic machinery, etc. But sometimes you may encounter the situation of polyurethane rubber roller degumming. In this article we will analyze the reasons for degumming.

Reasons for degumming of PU rubber roller:

1、Low temperature of polyurethane adhesive will make the curing time not balanced during the molding of PU rubber roller.

2、The PU rubber roller is easily affected by external forces when it is just be de-moulded. If the de-moulding operation is improper, the polyurethane rubber roller is easy to be unglued in future use.

The picture following is customized PU rubber coated conveyor rollers for logistics conveyor system.

3、If the adhesive of roller core is not evenly applied or the formula is not suitable, the polyurethane rubber layer and the roller core will not bond firmly, which will leads to the degumming.

4、Blisters at the roll core because of improper casting procession will also have the possibility of rubber degumming.

5、The urethane roller core is not cleaned completely after sand blasting.

6、The preheating temperature of the roll core is improperly controlled.

In order to avoid degumming, we need to pay attention to the following aspects:

1、Select appropriate adhesives to bond PU rubber layer and the roller core.

2、The surface of the roller core must be clean and dry. And increase the surface roughness by sandblasting. 

The article above is reason analysis for degumming of polyurethane rubber covered rollers. If you are interested in rollers, please contact FUTIAN ROLLER for more information!

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Characteristics of PU Rubber Roller

Polyurethane rubber rollers have many superior properties and are suitable for various kinds of industrial machines.

Characteristics of polyurethane rubber roller:

The color of rubber layer appears to be bright and the surface is smooth, and the rubber layer is firmly bonded with the roller core. The size of rubber roller will not change greatly under different temperatures and humidity conditions, which makes it easy for rubber roller to adapt to the high humidity and high temperature or dry and cold working conditions.

The rubber hardness range of PU rubber roller is wide, which makes it can meet the requirements of different equipment.

The PU rubber covered roller has good surface stickiness.

The below picture is customized PU rubber coated roller made by FUTIAN ROLLER.

4. PU rubber roller has good chemical properties and special resistance to solvent material.

5. Polyurethane rollers also have good physical properties, including great aging resistance, wear resistance, tear resistance, resilience, etc. Therefore, it has a long service life. PU rubber rollers can be preserved for a long time and can withstand the working environment of high pressure, high speed, high temperature and high humidity.  

Issues to be noted in operation:

1. Avoid rubber roller contacting with strong acid, alkali, etc.

2. When store the rubber rollers, the rollers should be supported at both shaft journals, otherwise the rubber may deform permanently of it is pressed or stacked up directly.

3. Clean and check the rubber rollers regularly to make sure they are in good conditions.

The article above is about the characteristics of PU rubber roller. FUTIAN ROLLER is an ISO 9001:2015 certified company with license of import and export, and now 80% of our products are exported to North America, Europe, Israel, Singapore, etc. If you need customized rubber rollers, please feel free to contact us!

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What Is Electromagnetic Heating Roller

The electromagnetic heated roller is a type of heating transfer roller, which is made according to the principle of electromagnetic induction heating. Compared with the traditional oil heated roller and electric heating roller, the electromagnetic heating roller has the advantages of high temperature, good heating uniformity, and low energy consumption. The electromagnetic heated roller can be used in the surface calendering of various textiles and foaming materials, drying and stretching of films and various materials, etc.

Technical principle of electromagnetic heated roller:

Electromagnetic heated roller is a kind of roller which can heat itself in the continuous processing and production of industrial materials. The basic principle of its heating is to use the coil inside the roller to generate electromagnetic field, and by cutting the metal surface with magnetic line the roller can heat itself. The roller surface then exchanges heat with the material to be processed, and maintains the set working temperature of the roller through the temperature control system of the closed loop.

The picture following is customized roller made by FUTIAN ROLLER.

Compared to traditional heating roller, electromagnetic heated roller has several advantages:

1) The electromagnetic heating roller can work stably at a temperature of 350 ℃, breaking through the temperature bottleneck of traditional heating transfer roller, and meeting the temperature requirements of high-performance materials.

2) Because of its structural characteristics and excellent performance, the heating roller can keep the temperature of the roller surface accurately controlled during operation. It can also control the temperature change range according to the needs of special processes to ensure the quality of materials, reduce the waste of production caused by temperature changes;

3) It has remarkable energy-saving effect and cost of its maintenance is low. Compared with the traditional oil heated roller, the electromagnetic heating roller can be reduced by 50% or more. The complex heating equipment is abandoned, which can greatly reduce the heating power consumption;

4) When using the electromagnetic heating roller, there is little pollution, because it does not need heat transfer medium such as heat transfer oil or steam, which completely eliminates the pollution and potential safety hazards caused by medium leakage.

The article above is about electromagnetic heated roller, if you need more information about rollers, please contact FUTIAN ROLLER directly.

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Solutions to Common Problems of Rubber Roller

Rubber rollers are widely used in paper making, printing and dyeing, printing, grain processing, metallurgy, plastic processing and other industries. In practical application, the rubber roller may break down due to some reasons. The following article will describe some common problems encountered in the use of rubber roller and repairing solutions to solve these problems.

1.Rubber roller surface crystallization and calcification: the surface of high-quality rubber roller should be smooth, slightly sticky, with good ink transfer performance. During production, the rubber has been affected by fountain solution, ink, paper and other factors for a long time. In addition, each cleaning cannot be very thorough. The remaining impurities will be piled up on the rubber surface. As time goes by, the original pores on the rubber surface will be closed, forming a smooth crystal layer similar to calcium, which seriously affects the ink transmission and water transmission performance, and cause unstable control of the ink color of printed products. In order to avoid this situation, after washing the rubber roller, use some citric acid water to wash it again, so that some calcium impurities on the surface of the rubber roller will react chemically, forming soluble substances for cleaning.

2. The surface of the rubber roller is prone to be scratched: On account that the rubber cylinder is relatively soft, it will easily get scratched during high-speed operation. Once there are scratches, the rubber roller can no longer be used. To avoid such failures, to check whether the printing plate is tightened or clamped by the plate clamp is important. Meanwhile, check whether the ink is not maintained in time. Impurities such as ink peel and ink residue will accelerate the friction, heating and aging of the rubber roller and make the rubber surface covered with pockmarks. This situation is generally serious at both ends of the rubber roller. 

3.Premature chapping and aging of rubber roller: There are many reasons for this. Firstly, excessive dry oil in the ink will make the ink dry and cause heat on the rubber roller; Second, the detergent used for cleaning the rubber is not properly selected, and the cleaning time is too short will also make the impurities on the rubber not be completely cleaned; Thirdly, the ambient temperature of the workshop is so high that a large amount of heat generated during the operation of the rubber roller cannot be released in time, which will make the internal temperature of the rubber roller too high. In order to avoid premature break down of rubber rollers, working environment should be ensured to be proper for rubber roller. By ensuring good working environment and operating conditions, the service life of the rubber roller can be extended, which can reduce industrial costs and improve economic benefits.

Above are the solutions to common problems of rubber roller, hope it can help you. Please feel free to contact FUTIAN ROLLER if you need customized rubber rollers.

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Rubber Roller Coating Process

In general, rubber roller coating process refers to that the rubber roller factory cover the roller core with rubber and then vulcanized, polished, etc. According to the customer's requirements, the rubber roller is machined to the required size, hardness, color, etc. The rubber roller coating process involves the following processes:

1. Cleaning rubber roller core: If the rubber roll core is a new one, the oil stain on the rubber roller core surface should be cleaned with cleaning agent; If it is an old rubber roll core, the outside layer of the old rubber roller should be removed before cleaning the remaining rubber on the core surface with cleaning agent.

2. Roughening surface treatment on the rubber roller core: The purpose of making roughening surface treatment is to increase the bonding area between the surface of the rubber roll core and the coated rubber, which can make sure that the rubber coating is stably covered on the roller core.

3. Sand blasting processing: After roughening surface treatment on the rubber roller core, rubber roller factory will select different kinds of sand to do sandblasting according to the different material of the roller core. The sandblasting processing is to make the surface of rubber roller rougher, and the bonding between the rubber and the roller core will be better.

4. Rubber coating: The rubber will be extruded on to the roller core after the above treatment. Different coating rubber can meet different requirements. For example, natural rubber coated roller has good ink resistance, polyurethane rubber roller has good wear resistance and pressure resistance, and rubber roller with silicone coating appears to have good high temperature resistance.  

5. Roller vulcanizing: It generally takes 10-15 hours for the rubber roller to be vulcanized. After vulcanization, the covered rubber and the core of the rubber roller will be bonded closely.

6. Rubber roller polishing: The rubber rolls need to be polished according to the size required by the customer.

After the above processes, the rubber roller coating process is completed. Then the rubber rollers will be further machined, such as cnc turning, grooved, grinding, according to the customer’s requirements.

If you need custom made rubber covered roller, FUTIAN ROLLER is on hand to offer you any help.

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Printing Rubber Roller’s Types

Printing rubber rollers are products of printing industry and rubber industry, and they are important industrial accessories on printing equipment. The quality of printing rubber roller will directly affect the product quality and economic benefits of printing equipment manufacturers and printing enterprises. With the advancement of industrial modernization and the development of printing industry, the important role of rubber roller has become increasingly apparent. Rubber roller used for printing machines can be divided into two types--ink rubber roller and water rubber roller.

Ink carrying rubber roller

Ink carrying rubber roller refers to the rubber roller in all ink supply systems. The ink carrying rubber roller is used to transport the printing ink to the printing plate in a quantitative and uniform manner. The ink carrying rubber rollers can be divided into three categories: ink carrying, ink transferring and printing. The ink carrying rubber roller is also called the ink bucket rubber roller, which is used to extract a certain amount of ink from the ink bucket each time and then transfer it to the ink roller (also called the ink spreading roller).

The ink carrying rubber roller receives inks and distributes them evenly to form a uniform ink film, which is then transferred to the master backup roller, which (also known as the master roll) is responsible for distributing the transferred ink evenly on the printing plate. The uniform distribution of ink is gradually completed in the process of successive transmission of several cots. In this process, in addition to the cots, there are also hard rollers and the so-called ink stringing rollers.

In offset press, the rubber roller and the hard rubber roller are always arranged at intervals, forming an alternate combination of soft and hard, which is more conducive to the transfer of ink and uniform distribution. The function of the ink stringing rubber roller can further strengthen the axial distribution of the ink. When working, the ink stringing roller rotates while stringing, therefore, it is called the ink stringing roller.

The picture following is customized printing rubber roller made by FUTIAN ROLLER.

2. Water carrying rubber roller

The water carrying rubber roller is the rubber roller used in the water supply system. Similar to the ink guiding rubber roller, water guiding rubber roller is used to evenly deliver water to the printing plate. It also has three types of function: water carrying, water transferring and plate relying. At present, there are two water supply modes for the water carrying rubber roller.

In the early days, the water supply mode was intermittent. The backing rubber roller was wrapped with a water flannelette cover, and the water carrying rubber roller swung back and forth to supply water. The continuous water supply mode was suitable for high-speed printing, and the intermittent water supply mode has gradually been replaced.

The above is about printing rubber roller’s types. If you need customized printing machine rubber roller, please feel free to contact FUTIAN ROLLER!