Polyurethane conveyor belts are the preferred choice for processes where hygiene is critical: direct food contact, pharmaceutical industry, dairy products, bakery, meat processing and any environment requiring pressure water or chemical cleaning.
Polyurethane offers a smoother and less porous surface than PVC, which reduces bacterial adhesion and facilitates cleaning. At NFP Industrial we represent Kunming Conveyor Belt Co., Ltd., whose PU belts comply with the most demanding food regulations: FDA, EU 10/2011 and BfR.
When to choose PU instead of PVC?
| Factor | PU | PVC |
|---|---|---|
| Hygiene and porosity | Superior — less porous surface | Good |
| Resistance to oils and fats | High — resistant to animal and vegetable fats | Medium |
| Aggressive cleaning (pressure water, chemicals) | No degradation | Progressive degradation |
| Food certification | FDA as standard across the entire KMB range | Available on specific models |
| Cost per meter | Higher | More economical |
| Service life in intensive washing environments | Longer | Shorter |
| Temperature range | -10 °C to +110 °C | -10 °C to +80 °C |
Applications by sector
Food processing
Meat processing, bakery, dairy, confectionery, fish processing, snacks. Designed for direct contact with loose or packaged materials: cereals, vegetables, fruits, poultry and meat.
Pharmaceutical
Medication packaging lines, blister handling, clean rooms.
Tobacco
Odorless and non-toxic belts, high tensile strength, low elongation and easy-to-clean surface for safe contact with cut tobacco.
Other sectors
Cosmetics, electronics, packaging.
Types of PU belts available
By configuration
- •TPU belts on textile carcass (EM, AEM, EHM, KEM, KEHM): 1 to 3 plies
- •High-hardness TPU belts (up to 93 Shore A) for high-wear applications
- •Belts with transparent TPU cover for visual product inspection
By color
White, green (apple green), blue (sky blue), dark brown, cadmium yellow, black.
By surface finish
Smooth (glossy/matt), diamond (DT), rhombus (RH), supergrip (SG), button (BP), ribbed (RG).
Technical specifications
| Parameter | Available range |
|---|---|
| Total thickness | 0.7 mm to 4.8 mm |
| Weight | 0.9 kg/m² to 4.8 kg/m² |
| Shore A hardness | 85 to 93 |
| Elongation at 1% load | 6 to 80 N/mm |
| Minimum roller diameter | 3 mm to 80 mm (allows very small radii) |
| Maximum width | up to 4000 mm |
| Working temperature | -10 °C to +70 °C (standard), up to +110 °C in HT models |
| Certifications | FDA, AS (antistatic), ESD (electrostatic discharge) |
NFP Industrial technical support
For PU belts, technical advice is even more critical than for PVC, because there are specific compounds depending on the intended contact: fats, acids, oils, temperatures. As representatives of Kunming Conveyor Belt, we help you choose the exact compound, surface profile and ply configuration your process needs.