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Polyurethane casters are undriven wheels made from polyurethane, designed for attachment to the bottom of large objects to enable movement. Read More…
Polyurethane CastersCasters are small wheels that are usually attached to an iron center and a steel bracket. Casters are used in a variety of industries and applications; from healthcare to warehouse storage to moving.
TPC, Inc. is a leader in the polyurethane molding industry. Our state-of-the-art manufacturing facilities focus on providing high-quality products, competitive pricing, and exceptional customer service. Our team of experts is dedicated to the production and innovation of our products. As a result, TPC, Inc.’s custom-fit solutions are perfected for customers of all industries.
FallLine has been a manufacturer of custom polyurethane molding products for various industries since 1981. We offer a wide range of proven materials ranging from 40A - 80D, as well as the capability to formulate materials to meet specific needs.
From concept, to production, to delivery, we have over 40 years experience with made-to-order cast urethane & cast polyurethane elastomer products. Weaver Industries offers urethane wheels, polyurethane molding, molded urethane, urethane sheets, & urethane/polyurethane manufacturing. Skilled at custom casting, discover the advantages of our urethane sheet and Action Mallet heads.
ESCO Plastics is a urethane molding supplier & manufacturer of custom cast polyurethanes, including open-cast goods, urethane rollers, urethane sheet, open-cast urethane molded products, and compression molded parts. For over 35 years our focus has been on providing quality molded urethane parts, exceptional delivery and excellent service. In need of molded urethane parts? Call us today.
Polyurethane casters are undriven wheels made from polyurethane, designed for attachment to the bottom of large objects to enable movement.
How Polyurethane Casters Are Made
The process of making polyurethane casters involves:
In this technique, the two-part polyurethane is mixed to produce a uniform mixture. The mixture will then be de-gassed and poured into an open mold. The setting of the mixture occurs quickly, so it is important that the process is conducted as quickly as possible and the material is mixed in small batches to avoid wastage.
This process is almost similar to the process of open molding. However, the entire process is conducted in a casting machine. This will save a lot of time and provide a more consistent final product.
Spraying and Coating
This process is a simple one. The polyurethane is sprayed onto a component so that a coating of polyurethane is provided.
This process is generally used for thermoplastic materials. Polyurethane pellets are fed into a reciprocating injection molding machine and melted by the heated reciprocating screw.
At the same time, the liquid material is fed through the machine and injected into a mold. The material is allowed to cool down and then removed from the mold.
The machining of most grades of polyurethane can be done using conventional methods like turning, grinding, milling and drilling. However, for softer materials, special techniques are required. One technique that can be used for softer materials is freezing the material before machining so its hardness can be increased.
Machining to relatively high tolerances is possible when using hard polyurethane. The material can be improved further by using the grinding process.
Types of Polyurethane Casters
The different types of polyurethane casters include:
Medium Duty Polyurethane Caster
These types of casters cost less. They consist of a highly resistant steel bracket that is pressed. They are non-marking, and they exhibit good abrasion resistance. In addition, they have good dampening with a low resistance to rolling.
They are capable of carrying high loads, especially at low speeds. They are resistant to multiple diluted acids, oils, greases, and alkalis.
Medium Duty Polyurethane on Polypropylene Caster
These consist of a double ball bearing. They offer non-marking tread and excellent resistance to abrasion. They also offer excellent resistance to impact and exhibit high resistance to greases and oils.
Medium Duty Polyurethane on Aluminum Caster
These have a robust center of aluminum bonded with a tread of cast polyurethane. They are non-marking, and they exhibit properties of abrasion and impact resistance.
Heavy Duty Polyurethane Caster with Cast Iron Center
These have a strong center made from cast iron and are bonded with a high-grade polyurethane tread; they also consist of strong pressed steel brackets with a chromate and zinc finish. They offer a non-marking tread and excellent abrasion and impact resistance. They are also resistant to greases and oils.
Applications and Benefits of Polyurethane Casters
The applications and benefits of polyurethane casters include:
Applications of Polyurethane Casters
Overhead Conveyor Systems
Industrial Washer Systems
Roll forming Machinery
Benefits of Polyurethane Casters
The benefits of polyurethane casters include:
Polyurethane casters are used in a variety of industries to reduce noise levels. Polyurethane casters are considerably quieter compared to cast iron or steel. The polyurethane acts like a shock absorber on a terrain that is uneven.
Dynamic Load Bearing Capability
Compared to rubber casters, polyurethane casters offer a higher load-bearing capacity. They also offer good compressive deformation behavior.
Polyurethane casters function efficiently and are generally non-marking. They function well on hard surfaces such as concrete, even hardwood, and ceramic tiles. They reduce direct stress on a floor because of their large surface area and shock absorption.
High Grip and Traction
Polyurethane casters provide less resistance than others, making them some of the most ergonomic on the market. In addition, polyurethane casters have properties that allow for improved grip and traction compared to other hard wheels. They also reduce the quantity of load on the wheel for the achievement of the desired driving force.
Resistance to Corrosion
Polyurethane wheels are resistant to corrosion and a multitude of chemicals like greases, oils, and cleaning agents found in industrial and commercial environments.