Polyurethane rolls

Polyurethane is an elastomer that is increasingly used in many industries, as well as in the everyday life of many people. Polyurethane has unique properties such as high resistance to abrasion, deformation and tearing. Polyurethanes rolls are also resistant to ozone and UV radiation.

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Polyurethane rolls 

Polyurethane is an elastomer that is increasingly used in many industries, as well as in the everyday life of many people. Polyurethane has unique properties such as high resistance to abrasion, deformation and tearing. Polyurethanes rolls are also resistant to ozone and UV radiation. High resistance to most aggressive chemicals makes the polyurethane roller can be successfully used in the harshest industrial conditions. It will be perfect for places where a rubber roller fails the test. The possibility of their versatile use makes them a very often chosen material where resistance to difficult conditions is required. Thanks to the addition of auxiliary substances, we can obtain materials with specific properties, dedicated to a specific task under specific working conditions. Hardness is a parameter that can be adjusted much more precisely with polyurethane than with rubber elastomers. Thanks to this, polyurethane has found so many applications in the production of standard and custom details in accordance with the individual preferences of the customer. Our company uses 30 years of experience in the production of elastomers to provide our customers with excellent quality products and customer service at the highest level.

 

 

 

Polyurethane rollers have a wide range of properties like:

 

  • Resistant to abrasion, cutting and tearing
  • Resistant to most aggressive chemicals
  • The ability to absorb energy and dampen vibrations
  • The hardness can be finely adjusted.
  • Possibility to impart antistatic properties
  • Good adhesion to metals
  • Resistance to microorganisms

Diverse Industry Applications

Polyurethane rollers find their application across a myriad of industries due to their unique properties:

  1. Manufacturing: In assembly lines and automation, these rollers enhance operational efficiency and longevity.
  2. Automotive: Utilized in vehicle assembly and component handling, they enhance production speed and precision.
  3. Mining: Essential in conveyor systems, they enhance safety and productivity.
  4. Food Processing: They ensure hygiene and compliance with FDA standards during both processing and packaging stages.
  5. Aviation: Used in aircraft manufacturing and maintenance, they ensure precision and reliability.
  6. Packaging: Facilitates handling of diverse products and boosts efficiency in packaging processes.
  7. Printing: In print machinery, they ensure color accuracy and can withstand high-pressure operations.
  8. Agriculture: Used in farming tools and irrigation systems, they support advanced agricultural practices.
  9. Banking: Integral in document processing and ATMs, enhancing security measures and operational efficiency.
  10. Construction: Used in material management and machinery operations, aiding in robust construction methodologies.
  11. Steel Cutting: Their abrasion resistance prolongs operational lifespan in meticulous cutting and material management​​.

Working temperature

Depending on the mixture used, the working temperature ranges from -20 degrees C to + 100 degrees C

 Hardness range available

Polyurethane shafts are available in a wide hardness range from 30 Shore A to 90 Shore A

 

We have in our offer

 

  • regeneration of polyurethane rollers
  • production of polyurethane rollers from scratch
  • grinding polyurethane rollers
  • polishing of polyurethane rollers

 

We offer all kinds of polyurethane rolls, such as:

  • varnish polyurethane rollers
  • laminating polyurethane rollers
  • grooved polyurethane rolls (opti)
  • smooth polyurethane rolls
  • applying polyurethane rolls
  • transport polyurethane rolls
  • leading polyurethane rolls
  • polyurethane rollers for other purposes

Our production includes a variety of polyurethane rollers for machines from such manufacturers as:

 

  • polyurethane rollers – Bürkle
  • polyurethane rollers – Cefla
  • polyurethane rollers – Sorbini
  • polyurethane rollers – Barberan
  • polyurethane rollers – Hymmen
  • polyurethane rollers for other machines

 

The Versatility and Durability of Polyurethane Rollers

Polyurethane rollers are indispensable in modern manufacturing and processing industries. As cylindrical rollers enveloped in a layer of polyurethane, a type of elastomer, they exhibit remarkable properties such as abrasion resistance and impact strength​​. The use of polyurethane, the most extensively used elastomer for rollers, allows for a variety of blends to suit specific applications. This flexibility is due to the different types and proportions of its compounding ingredients​​.

Formulations and Mechanical Properties

Polyurethane formulations can create rollers ranging from hard and firm to soft and pliable, depending on the application’s requirements. This adaptability, coupled with its durability and shock resistance, makes polyurethane one of the most popular types of roller compositions​​. Additionally, polyurethane rollers have several advantages over traditional rubber rollers, including a wide range of physical properties, better durability, and FDA approval for use in food processing​​.

Water and Oil Resistance

An important feature of polyurethane rollers is their resistance to water, oils, and other petroleum-based solvents. This resistance is crucial for rollers used in wet environments or for handling hydrocarbon-based chemicals like inks​​.

Ease of Processing

Unlike other rubber types, processing polyurethane does not require expensive and complicated equipment, making it a more accessible material for various industries​​.

The Composition of Polyurethane

Polyurethane’s engineering work primarily revolves around its elastomer lining. The material comprises four components: polyol compound, diisocyanate compound, chain extender or curatives, and additives. These components interact to form a long-chained polyurethane molecule with varying mechanical properties​​. Different chemicals, including polyether and polyester polyols, play distinct roles in determining the final properties of the polyurethane, such as resilience, impact resistance, and resistance to hydrolysis​​.

Diisocyanate compounds, another critical component, are categorized into aliphatic and aromatic types, each imparting unique characteristics to the polyurethane, such as non-yellowing properties and high resilience​​. Curatives, including hydroxyls and amines, are mixed with the prepolymer to form a solid or semi-solid elastomer, further influencing the polyurethane’s properties​​.

Significant Properties of Polyurethane

Polyurethane is renowned for its hardness, abrasion resistance, tear strength, impact strength, and fatigue resistance, making it a highly sought-after engineering material. Its ability to withstand both sliding and impingement abrasion, coupled with high tear strength, positions it as a superior material in demanding applications​​. Additionally, polyurethane exhibits excellent thermal aging resistance and has a coefficient of friction that varies inversely with its hardness​​​​.

Chemical Resistance

The chemical resistance of polyurethanes, dependent on the type of polyol used, makes them suitable for various applications, including those involving water, oils, and petroleum compounds​​.

Manufacturing Process of Polyurethane Roller

The manufacturing of polyurethane rollers involves several stages, including the fabrication of the roller core, usually from steel, balancing, blending, bonding, building, curing, machining, and quality testing. This process is noted for its straightforwardness compared to other rubber roller types​​​​.

Various formulation processes, such as the single shot, prepolymer, and quasi-prepolymer processes, are employed in polyurethane production. These processes cater to different application requirements and manufacturing constraints​​.

Applications in Industry

Polyurethane rollers are widely chosen for their durability, range of durometers, and resistance to abrasion damage. They are particularly prevalent in conveyor systems due to their noise abatement and solvent resistance, essential for efficient and smooth operations in packaging and shipping​​. Additionally, industrial polyurethane coated casters, capable of carrying heavy loads without damaging surfaces, are a testament to the material’s ruggedness and durability​​.

In summary, polyurethane rollers represent a pinnacle of modern material engineering, offering versatility, resilience, and efficiency across numerous industrial applications. Their unique properties make them an indispensable component in various sectors, reinforcing their status as a material of choice for high-performance and durability demands.The choice between polyurethane and rubber rollers largely depends on the specific operational needs and environmental conditions of the application. Polyurethane roller, with their exceptional durability, are resistant to various environmental factors, and customizable properties, stand out as a versatile solution in diverse industrial applications. Their initial higher cost is often offset by their longer lifespan and reduced maintenance needs.

In contrast, rubber rollers, with their inherent elasticity and lower initial cost, remain a viable choice for applications where budget constraints are a significant consideration, and the operating conditions are less demanding in terms of abrasion resistance and environmental factors.

As industries continue to evolve, the choice of roller material will remain an essential consideration, balancing cost, performance, and the specific demands of each application. The adaptability and robustness of polyurethane roller make them a preferred choice in many sectors, reflecting their growing importance in modern industrial operations.

 

 

 

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