timing belt coating Factory wholesale

Yonghang can manufacture all types of timing belts coating, including surface coating different materials, varying hardness levels, and pattern designs,different thickness coatings etc.We offer services such as tooth removal, perforation, attachment installation, and guard plate fabrication. We can also customize belt coating according to your requirements.
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Yonghang, a leading producer of timing belt coating, is dedicated to supply high precision and performance coated synchronous belt for packing industry.

The coating Yonghang supplies natural rubber like Linatex and APL, and synthetic rubber such as EPDM, CR rubbers,elastomer and sponge rubber.food-grade raw material silicone coating and pu coating, high-temperature resistant material felt coating, high friction coefficient pattern coating,etc.

What are differences between different coatings?

Material Working temperature Chemical resistence Physical properties Applications
Rubber -20~+110℃ Resitant against oil，water good resilience，hard-wearing Transport or haul-off belts subject to high friction, wood, paper, textil and packing industry
PU -20~+80℃ Resitant against simple oil and fats, petrol,ozone Outstanding abrasion resistance, high load-bearing capacity, and tear strength General transport tasks, transport of glass, sheet metal, transport mechanically aggressive parts
Silicone -20~+230℃ Food grade, non-stick, resistant to oil and water, resistant to common acids and alkalis Excellent flexibility, durability and comfortable touch Foodstuff industry
Felt -20~+600℃ High temperature resistant Light in weight, soft in texture Aluminum materials / glass / metal sheet conveying, high-temperature product mechanical conveying components
PVC Pattern -20~+80℃ Resistant against simple oil and fats, acids,lyes Provide anti-slip and decorative textures Well suitable for inclined conveying，Used in the ceramic, glass, elevator, wood and paper industries.
Sponge -20℃ to+50℃ Depending on the different materials, they are generally not resistant to high temperatures. Good water absorption property，Highly resilient,Light weight Well suitable for Light and fragile items conveying
Foam -20℃ to+50℃ Depending on the different materials, they are generally not resistant to high temperatures. The hardness range is wide, and the water absorption rate varies depending on the different materials. Well suitable for Light and fragile items conveying

 

timing belt rubber coating

timing belt Silicone coating

timing belt Sponge coating

  • Multi-ribbed belt with foam
  • timing belt with foam
  • timing belt with foam grooves
  • PVC with foam

PU coating

timing belt with Pattern coating

felt coated timing belts

Applications of yonghang coated timing belts

Yonghang transmission belts serve as comprehensive drive system solutions widely applied across diverse industries and scenarios.coatings can be applied to PU timing belts, and rubber timing belts, We can help you optimize your design and recommend the right solution, including custom-made synchronous belts and surfaces plus Silicone /holes/rubber/sponge/foam/Drilling and slotting, etc.

Applications

  • Packaging Industry: Film wrapping, sealing, labeling, carton folding lines
  • Food Processing: Chocolate coating, bakery conveyors, drying lines
  • Textile Industry: Fabric feeding and traction belts
  • Electronics & PCB Manufacturing: Precise transport under heat conditions
  • Printing & Paper Industry: Folding, laminating, and feeding machines
  • Glass & Plastic Industry: Sheet conveying and surface protection systems
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coated timing belts for Packaging Industry

Coating hardness

Description Material Color Hardness / density
CR Rubber Red 50º Sh. A
CR Rubber Green 45º Sh. A
APL Rubber Red 45º Sh. A
CR Rubber White 50º Sh. A
CR Rubber Black 50º Sh. A
Silicone Silicone White  /Blue/Grey 40º Sh. A
PU PU Black/White/Black/Red/Yellow/Transparent 85º Sh. A
PU PU Transparent 55º Sh. A
Foam Foam Black/Green/Orange/Blue RD300
Felt Felt White/Grey/beige n.a.
Super Grip PU PU Dark green 40º Shore A
Super Grip PVC PVC Green 45º Shore A
Super Grip Rubber Rubber Red 45º Shore A
Super Grip PU PU Black/Grey/Green etc 50º Shore A
longitudinal groove PU Black/Transparent 60° Shore A
Anti-static Fabric Black/Green n.a.
Brush Pig bristles/ nylon Black/Brown/White n.a.
Fishbone PVC Green 65º Shore A
Magnetic Rubber Black n.a
Silicone Red Silicone Red 35°ShoreA
CR Rubber Yellow 45º Sh. A

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FAQ of timing belts coating

A: Standard PU or rubber timing belts are designed for power transmission and precise positioning, but their raw surfaces are often too hard, slick, or abrasive for direct product handling. Adding a coating customizes the belt’s surface properties to protect delicate products from scratches, increase or decrease friction, absorb impacts, or withstand extreme temperatures while maintaining synchronous tracking.

A: The choice depends entirely on your application requirements:

  • Sponge/Foam (PU, EPDM, Neoprene): Best for high compressibility, cushioning delicate products, and vacuum sealing (e.g., labeling or packaging lines).
  • Felt (Kevlar/Para-aramid, Nomex/Meta-aramid): Best for heat resistance and scratch prevention (e.g., glass manufacturing or aluminum extrusion).
  • Rubber (LINATEX, TENAX, Nitrile): Best for high friction, high wear resistance, and heavy-duty feeding (e.g., cardboard box folding or wood processing).
  • PVC/PU (Smooth, Rough Top, Supergrip): Excellent for general-purpose conveying, oil/chemical resistance, and specific grip profiles.

A: There are two primary bonding methods: chemical bonding (adhesives) and thermal vulcanization (heat fusion). Lower-grade belts bonded with cheap glues are prone to delamination under high speeds or heat. Yonghang manufacturers use advanced thermal vulcanization or industrial-grade polyurethane backing compounds, ensuring the coating and the base belt become an inseparable, single unit capable of withstanding intense mechanical stress.

A: Yes, provided the right coating material is selected. Standard polyurethane base belts typically soften above 80°C (176°F). However, by applying a thermal barrier coating like Para-aramid (Kevlar) felt or Meta-aramid (Nomex) felt, the contact surface can safely handle materials up to 180°C to 600°C, preventing the heat from reaching and degrading the belt’s core structural cords.There is also a heat-resistant silicone coating, with the maximum temperature reaching up to 220℃.

A: Yes, but they must satisfy strict food safety standards (such as FDA or EU regulations). For direct food contact, you must specify non-toxic, food-grade materials like FDA-approved clear/white TPU or silicone coatings. These coatings are non-porous, easy to clean, and resistant to food fats, oils, and chemical washdowns.

A: Modifying the coating surface with grooves, slots, or pockets introduces specific mechanical advantages:

  • Air Venting: Transverse grooves allow trapped air to escape when compressing packaging film (e.g., exhaust belts on pillow packing machines).
  • Flexibility: Slitting or grooving thick coatings reduces the bending resistance, allowing the belt to wrap smoothly around smaller pulleys without cracking.
  • Product Placement: Custom profiles can match the specific footprint of a component to hold it securely in place during high-speed indexing.

A: Yes, absolutely. Adding a thick layer of rubber, foam, or PVC increases the overall stiffness of the belt. When bending around a pulley, the outer coating layer is placed under high tension, while the base teeth are compressed. If your pulleys are too small, the coating will crack or delaminate. To counter this, thick coatings can be slotted or grooved to restore flexibility.

A: Yes. Static electricity build-up is a major hazard when conveying lightweight plastics, paper dust, or sensitive electronic components (PCBs). Specialty coatings can be formulated with anti-static additives, or the base belt can be integrated with conductive carbon filaments to safely dissipate static charges away from the line according to global industrial standards.

A: To ensure a perfect drop-in replacement, you need to provide:

  1. Base Belt Specifications: Tooth pitch (e.g., T10, AT10, 8M), width, and total length (or tooth count).
  2. Tensile Cord Type: Steel cords (standard) or Kevlar cords (for high flexibility/non-magnetic lines).
  3. Coating Details: Material type, hardness (Durometer/Shore A), and color.
  4. Dimensions: Total thickness of the belt including the coating, and technical drawings of any custom grooves or profiles.

A: Monitor your conveyor lines for the following warning signs:

  • Delamination: Any peeling or separation at the seam between the coating and the base belt.
  • Glazing or Cracking: The coating surface appears shiny, hard, or shows visible micro-cracks, indicating heat degradation or excessive bending stress.
  • Loss of Grip/Slippage: The coating profile has worn down smooth, causing product misalignments or synchronization errors on your production line.