What Are The Types Of Rubber Calender Machines?

Crowns Machinery’s Rubber Calender is a machine used to process rubber material to a specific thickness and surface smoothness. Rollers apply pressure by rotating. They stretch and flatten the rubber into a uniform sheet. This equipment is important in the rubber manufacturing industry and is mainly used to produce products such as rubber sheets, rubber-coated fabrics, and tire cord fabrics. Rubber calenders can control the thickness and surface finish of rubber sheets. This improves the consistency of product quality. Continuous processing can improve rubber calendering machines. It can boost production efficiency and meet mass production needs. Rubber calenders are versatile. They can process many types of rubber and adapt to the needs of a wide range of products. Controlling thickness precisely and calendering uniformly can cut waste. They can also lower production costs.

Types Of Rubber Calender Machines

Table of Contents

Different types of rubber calenders

Two Roll Calender

Structure and Components: A two-roll rubber calender has two parallel rollers. They can be heated or cooled as needed for processing. Each roller has its drive system and adjusting mechanism. They control the spacing and the speed of the rollers. The frame, drive mechanism, heating/cooling system, and control panel are its main components.

Operation and application: The rubber is fed between two rollers. By adjusting the spacing and speed, the rubber is pressed into a sheet of the needed thickness. Adjusting the temperature and pressure can optimize the processing effect. Two roll rubber calender is mainly used for simple rubber sheet calendering and rubber mixing, is suitable for small-scale production and laboratory research.

Rubber Calender Machines-Crowns Machinery

Three Roll Calender

Design and Function: The calender has three rollers. They are usually in an inverted T or triangle shape. This design allows the rubber to be calendered twice between two pairs of rollers. This ensures the material’s thickness and uniformity.

Benefits and Uses: The three-roll calender provides higher calendering pressures and finer thickness control than the two-roll calender. The multiple calendering process reduces material springback and improves product uniformity and quality. Three roll calenders are common for making medium-thickness rubber sheets and compounds. They are widely used to make medium to high-end rubber products, such as tire cord fabrics and high-performance adhesive tapes.

Four Roll Calender

Features and Functions: The four-roll rubber calender consists of four rollers arranged in parallel, usually in a Z-shape or inverted L-shape. This design allows the material to be calendered many times. It goes between three pairs of rollers, which provide very high pressure and precision. This is for making ultra-thin, high-quality rubber sheets.

Benefits and applications: Four-roll rubber calenders enable more precise thickness control and higher surface flatness than two- and three-roll calenders. The multiple calendering process ensures material uniformity and quality. Four-roll calenders are widely used to make high-quality thin rubber sheets. They also make rubber-coated fabrics and composites. They are popular in automotive, aerospace, and high-end consumer goods manufacturing.

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Factors to consider when choosing a rubber calender

Choosing the right rubber calender is critical to the quality and efficiency of rubber product production. Here are a few key factors:


High throughput requirements: If you need to produce a lot continuously, choose a multi-roll calender. It can greatly boost productivity.

Small batch production: For small-scale production or laboratory use, a two- or three-roll calender may be more suitable due to its ease of operation and lower cost.

Material Characteristics

Type of rubber: Rubber comes in different types, like natural, synthetic, and silicone. They each have different needs for calenders. Some materials require higher temperatures and pressures. A calender with the right features should be selected.

Viscosity and elasticity: The viscosity and elasticity of the material affect the ease or difficulty of the calendering process. Highly viscous materials may require calenders with stronger drives and higher pressures.

Rubber Calender Machines-Crowns Machinery

Required product specifications

Thickness and width: The thickness and width of the rubber sheet required determine the roll size and calender configuration. Multi-roll calenders provide more precise thickness control.

Surface Finish: These applications need a high surface finish. For example, high-grade rubber coated fabrics. They need a calender that can give a high surface quality.

Production environment and space

Shop floor space: Calenders need to be sized and installed to match shop floor space requirements.

Environmental control: If you need to operate at specific temperatures or humidity, choose a calender with the right environmental controls.

Economic factors

Initial investment: The cost of different types of calenders varies greatly, so the most suitable machine needs to be selected according to the budget.

Maintenance and operating costs: Maintenance and operating costs for long-term use are also important factors to consider.

Types Of Rubber Calender Machines


Understanding the different types of rubber calenders is critical to achieving efficient rubber processing. The choice of rubber calender affects product quality and productivity. It also ties to controlling production costs and using materials effectively. Manufacturers should evaluate their production needs, material characteristics, and product specifications. They should do this before investing in the best type of calender. Two-roll calenders are good for small-scale production and lab research. Multi-roll calenders are better for large-scale production and high-precision processing. You may be making high-quality rubber sheets, rubber-coated fabrics, or composites. Choosing the right rubber calender can help makers boost productivity and product quality. This can give them an edge in a tough market.

Would you like to learn more about which rubber calender is best for your production needs? Or, would you like a detailed equipment quote? If so, please contact Crowns Machinery. Our team of specialists can give you a custom solution that will help you to boost productivity, cut costs, and achieve top production results. Contact us today for your rubber calendering equipment quote.


A two-roll rubber calender has two parallel rollers. It is a simple machine for making and mixing rubber sheets. A three-roll rubber calender adds a roller. It is usually arranged in an inverted T-shape. The setup lets the rubber be calendered twice between the two pairs of rollers. A three-roller calender can provide higher pressure and finer thickness control. It is better for making higher quality rubber products than a two-roller calender.

The four-roll rubber calender can make better rubber products. This is because it can achieve very precise film thickness and surface finish. It does this through the multiple calendering process. Their complex roller arrangement and high precision control make them great for applications. These include the automotive and aerospace industries, where product quality is vital.

Multi-roll rubber calenders are for large-scale, high-precision production. They are not for small-scale production because they take up more space and are more expensive. Two or three roll calenders are for small-scale production and labs. They are suitable because they are small, cheap, and easy to use.

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