PU Round Belt
– Flexible, wear-resistant and easy-to-install polyurethane round belts designed for conveying, power transmission and industrial drive applications
– Available in different diameters, hardness options and surface finishes for a wide range of conveying and drive requirements.
– Custom PU round belts can be supplied in open lengths or welded endless configurations according to pulley, conveyor and drive system requirements
PU Round Belt Construction
PU round belts are made from thermoplastic polyurethane (TPU) with a circular cross-section. The polyurethane belt body provides flexibility, abrasion resistance, tensile strength and elastic recovery, making them suitable for continuous conveying and power transmission applications.
The belt construction and specification can be selected according to belt diameter, pulley dimensions, conveying load, operating speed, joining method and application requirements.
Key construction considerations:
- Polyurethane belt body – Provides the round profile, flexibility, wear resistance and elastic recovery required for conveying and drive applications.
- Belt diameter – Determines the size of the round profile and should be matched to the pulley groove, load and operating conditions.
- Surface finish – Smooth or rough surfaces can be selected according to the required contact, traction and conveying conditions.
- Hardness – Different hardness options can be selected according to belt flexibility, pulley arrangement and operating requirements.
These construction options allow the belts to be configured for different pulley dimensions, load conditions and joining methods.
PU Round Belt Types and Configurations
TRANDVOX supplies customized polyurethane round belts in different constructions and configurations to meet specific conveying, drive and installation requirements.
Solid PU round belts have a continuous polyurethane cross-section and are suitable for general conveying, roller drive and power transmission applications. They can be supplied in open lengths and heat-welded to form endless belts according to the required belt length and application.
Hollow round belts feature an internal opening that allows compatible connector joining for convenient on-machine installation and replacement.
Reinforced round belts incorporate an internal tension member for applications requiring improved elongation control and dimensional stability.
O-ring drive belts are supplied as finished closed loops for roller conveyor and light-duty drive applications.
PU Round Belt Surface Options
TRANDVOX can supply polyurethane round belts with different surface finishes to suit specific conveying and drive requirements.
Smooth PU round belts provide a consistent surface and are suitable for general conveying, power transmission, roller drives, packaging machinery and other applications requiring stable belt contact.
Rough or textured PU round belts provide enhanced friction and grip between the belt and pulley or conveyed product. They are suitable for applications where increased traction, improved product handling, or reduced belt slip is required.
Antistatic PU round belts are formulated with antistatic additives to help reduce electrostatic charge accumulation during operation. They can be used in selected electronic component conveying and other applications where controlled electrical properties or reduced static buildup are required.
Colors of PU Round Belts
PU Round Belt Specifications
Polyurethane round belts can be supplied in different specifications according to belt design, pulley configuration and application requirements.
| Specification | Available Options |
|---|---|
| Belt Material | Polyurethane / TPU |
| Belt Profile | Round |
| Belt Diameter | 2–20 mm |
| Hardness | According to belt specification |
| Surface | Smooth / Rough |
| Belt Length | Open Length / Customized |
| Joining | Heat Welding |
| Color | Green / Orange / Clear / Red / Black / Customized |
| Food-Contact Options | Available for selected specifications |
The appropriate PU round belt specification should be selected based on belt diameter, hardness, pulley groove, minimum pulley diameter, conveying load, operating speed, required pretension, surface finish, joining method and working environment.
Get Free Quote of PU Round Belt
Not sure which PU round belt specification fits your equipment? TRANDVOX can help review your requirements and identify a suitable belt based on the existing belt, pulley system, operating conditions, or application needs.
Send us your belt diameter, length, hardness, color, surface, existing belt photos, drawings, or samples. We can support specification matching, replacement identification, custom size sourcing, joining requirements, and pre-shipment specification checks.
Whether you need a standard PU round belt or a replacement for an existing application, submit the inquiry form with the information you have. Our team will review the details and help confirm the appropriate specification before quotation.
PU Round Belt Applications
PU round belts are used in a range of conveying, roller drive and power transmission applications. Their flexible round profile allows them to work with compatible pulleys, rollers and grooved drive components in different types of machinery.
Conveyor Systems
PU round belts can be used in compatible conveyor and roller-drive systems for transferring motion and supporting product movement. Belt diameter and construction should be selected according to the pulley or roller arrangement, load and operating requirements.
Packaging Machinery
These belts can be used for product feeding, transfer and positioning in packaging machinery. Their flexible construction is suitable for applications where compact belt drives or controlled product movement are required.
Food Processing and Handling
Selected PU round belt constructions can be supplied for suitable food conveying and handling applications. For direct food contact, the specific belt material and construction should be confirmed against the applicable food-contact requirements.
Textile Machinery
These belts are used in selected textile machinery for power transmission and material movement. Their flexibility allows them to operate around relatively small pulleys and compact drive components.
Printing and Processing Machinery
They can be used in selected printing and processing machinery for product transfer and power transmission. They are suitable for compact drive arrangements where a flexible round-section belt is compatible with the equipment design.
PU Round Belt vs. Rubber Round Belt
PU and rubber round belts can both be used for conveying and power transmission, but their material characteristics differ.
PU round belts are commonly selected when abrasion resistance, flexibility, elastic recovery and resistance to oils or selected chemicals are important. Rubber round belts may be preferred for applications requiring different temperature characteristics, flexibility or rubber-specific material performance.
When selecting a round belt, consider belt diameter, pulley design, operating speed, load, required flexibility, temperature, chemical exposure, surface requirements and joining method.
The appropriate belt material should be selected according to the actual conveyor or drive system rather than material preference alone.
FAQ
A PU round belt is a circular-section belt made from polyurethane or thermoplastic polyurethane (TPU). It is used for conveying, roller driving and power transmission applications.
Urethane round belts are commonly used in conveyor systems, roller drives, packaging machinery, textile machinery, material handling equipment and selected industrial drive applications.
These belts are typically made from thermoplastic polyurethane elastomer. Different formulations and hardness levels can be selected according to the required belt performance and application.
Yes. PU round belts can be supplied in different diameters, hardness levels, lengths, colors, surface finishes and constructions according to application requirements.
Yes. Suitable solid thermoplastic PU round belts can be heat-welded to form endless belts. Welding parameters should be matched to the belt material, diameter and welding equipment.
PU round belts are available in various diameters, ranging from 2-20mm in different colors, with the appropriate size selected according to pulley groove dimensions, belt load, speed and application requirements.
Selection should consider belt diameter, pulley groove, minimum pulley diameter, belt hardness, tensile requirement, conveying load, operating speed, pretension, surface condition, joining method and working environment.
Selected PU round belt constructions can be supplied for suitable food conveying and handling applications. For direct food contact, the specific belt material and construction should be confirmed against the applicable food-contact requirements.
