Heat-resistant silicone conveyor belts are a specialized solution commonly used in heat-cutting machines, plastic bag-making machines, and heat-sealing packaging equipment. With high heat resistance, excellent non-stick properties, and stable performance under continuous operating conditions, silicone conveyor belts help improve cutting and sealing accuracy while reducing belt burning and material adhesion during production. In this article, Belota provides a detailed overview of this type of conveyor belt.

Overview of Heat-Resistant Silicone Conveyor Belts

A silicone conveyor belt, commonly referred to as a silicon conveyor belt in Vietnam, is manufactured from molded silica gel to create a seamless, joint-free structure. The belt incorporates a fabric-reinforced core that helps prevent stretching and tearing while increasing tensile strength, allowing the conveyor belt to maintain dimensional stability even when operating at high temperatures. This construction provides good heat resistance, making the belt suitable for heat sealing, heat pressing, and bag-cutting processes in plastic packaging production.

Basic Technical Specifications

Specification Technical Details
Standard roll size 1.5 m × 100 m
Surface material Silicone
Core Fabric-reinforced or ribbed core
Available colors Red / White / Black
Belt width 100 mm – 1500 mm
Belt length Custom-made
Diameter ≤ 4000 mm
Silicone thickness 2 mm – 6 mm
Hardness 60 Shore A
Operating temperature -20°C to 200°C; up to 360°C for hot-knife applications
Main properties Heat resistant, tear resistant, stretch resistant, highly elastic

Note: Conveyor belt dimensions can be customized based on the required size and the standard roll dimensions.

Key Advantages of Silicone Conveyor Belts

  • Two grades for different applications: Food-grade silicone can be selected for applications requiring direct food contact, while industrial-grade silicone is suitable for continuous operation and demanding production environments.
  • Seamless construction: The seamless structure helps maintain stable belt tension during operation, supporting high cutting and heat-sealing accuracy.
  • Non-stick and anti-adhesive surface: The silicone surface helps minimize plastic film, melted material, or adhesive buildup on the belt, allowing smoother machine operation and reducing production interruptions.
  • High heat resistance: Some specialized silicone conveyor belts can withstand temperatures of up to 360°C under specific operating conditions, making them suitable for hot-knife and film-cutting applications.
  • Chemical resistance: Silicone belts offer good resistance to acids, alkalis, and certain surface-treatment chemicals, making them suitable for handling different types of plastic films and industrial materials.
  • High elasticity: The elastic surface helps transport thin films while minimizing wrinkles, tearing, or deformation during processing.
  • Long service life: Depending on the operating conditions and belt construction, silicone conveyor belts can provide a service life of approximately 3–5 years while maintaining good resistance to aging, cracking, and hardening under heat and friction.

Applications of Silicone Conveyor Belts

  • Plastic bag-making machines: Used in bag-making, heat-sealing, and packaging machines to transport plastic film through cutting, heat-pressing, and sealing processes.
  • Film-cutting machines: Suitable for plastic film processing equipment thanks to its heat resistance and non-stick surface.
  • Fabric-cutting machines: Used in certain textile cutting equipment where stable belt performance, elasticity, and heat resistance are required during processing.
  • Disposable glove manufacturing machines: Used in disposable glove production lines. The appropriate silicone grade can be selected according to hygiene and temperature requirements.
  • Baking conveyors: Used in bread ovens and food-processing lines where heat resistance and resistance to oil and grease are required.
  • Packaging and heat-sealing machines: Transports packaging materials and plastic films through heated areas while reducing material adhesion to the belt surface.
  • Surface-treatment equipment: Can be used in certain Corona treatment machines and film-processing equipment requiring heat resistance, dimensional stability, and non-stick performance.
  • Industrial production lines: Suitable for processes requiring a combination of heat resistance, non-stick performance, elasticity, and continuous operation.

Common Silicone Conveyor Belt Sizes Customized by Belota

  • White silicone conveyor belt 5 mm x B1,400 x CV3,170
  • White silicone conveyor belt 5 mm x B1,400 x CV3,170
  • White silicone conveyor belt 5 mm x B1,400 x CV3,170
  • Cut-resistant conveyor belt 5 mm x B1,300 x CV3,280
  • 5 mm x B1,300 x CV3,280 cut-resistant conveyor belt after long-term use
  • 5 mm x B1,300 x CV3,280 cut-resistant conveyor belt after long-term use

Other common sizes available from Belota include:

  • Heat-resistant silicone conveyor belt 300 x 2220 x 6 mm
  • Heat-resistant silicone conveyor belt 1650 x 500 x 5 mm
  • Heat-resistant silicone conveyor belt 1860 x 500 x 5 mm
  • Heat-resistant silicone conveyor belt 2000 x 600 x 5 mm
  • Heat-resistant silicone conveyor belt 2200 x 600 x 5 mm
  • Heat-resistant silicone conveyor belt 400 x 2100 / 2220 x 6 mm
  • Heat-resistant silicone conveyor belt 500 x 1860 x 6 mm
  • Heat-resistant silicone conveyor belt 600 x 2000 / 2220 / 2550 x 6 mm
  • Heat-resistant silicone conveyor belt 700 x 1950 x 6 mm
  • Heat-resistant silicone conveyor belt 800 x 2000 x 6 mm
  • Heat-resistant silicone conveyor belt 900 x 2100 x 6 mm
  • Heat-resistant silicone conveyor belt 1000 x 2300 / 2400 / 2500 / 2600 x 6 mm

Why Use a Specialized Conveyor Belt for Hot-Knife Cutting Machines?

Using a specialized conveyor belt for hot-knife cutting machines is important for maintaining product quality and ensuring stable production line performance. In practice, problems such as belt burning, material adhesion, or cutting misalignment can occur when an unsuitable conveyor belt is used.

Hot-knife cutting machines operate with heated blades or sealing bars that generate high temperatures. Standard conveyor belts may deform, scorch, or develop a hardened surface after relatively short periods of operation. Specialized silicone conveyor belts are designed for high-temperature applications and can maintain their structure under demanding operating conditions.

During the cutting of plastic bags, plastic films, and packaging materials, melted plastic can easily adhere to the conveyor surface. Silicone conveyor belts designed for hot cutting provide a non-stick surface that helps materials move smoothly, reduces buildup, and minimizes machine cleaning and maintenance time.

Felt conveyor belt damaged by cutting due to insufficient heat resistance

Felt conveyor belt damaged during operation because it could not withstand the required temperature

Belota - Custom Heat-Resistant Silicone Conveyor Belts for Cutting Machines

Belota provides custom silicone conveyor belts manufactured according to actual machine dimensions, including belt length, width, thickness, and fabric-core construction. In addition to supplying conveyor belts, Belota's technical team provides consultation and on-site support to help select suitable materials for applications such as plastic bag-cutting machines, heat-sealing machines, packaging equipment, and industrial fabric-cutting machines.

This approach helps reduce problems such as belt burning, cutting misalignment, material adhesion, and frequent belt replacement.

Advantages of Choosing Belota for Custom Silicone Conveyor Belts

Custom manufacturing based on technical drawings or actual machine specifications

  • Heat-resistant and non-stick silicone materials
  • High durability with good resistance to belt stretching
  • Fast production and technical support
  • Technical consultation based on the specific application and industry
  • Product warranty according to technical requirements after installation and operation
  • Contact Belota via Zalo/Hotline 0917.657.946 for technical consultation and support.

Frequently Asked Questions About Silicone Conveyor Belts

What types of silicone conveyor belts does Belota supply?

Belota supplies various silicone conveyor belts, including white silicone belts for food-related applications, red and black silicone belts, fabric-reinforced silicone belts, and custom belts manufactured according to specific dimensions, thicknesses, lengths, and machine requirements. Depending on the application, Belota can recommend a suitable belt based on operating temperature, conveyed material, and working conditions.

What is the maximum temperature a silicone conveyor belt can withstand?

Some silicone conveyor belt models can withstand high temperatures of up to approximately 380°C under specific operating conditions. The actual continuous operating temperature depends on the belt construction, heat source, contact time, and machine operating conditions.

Does Belota supply silicone conveyor belts for food-processing applications?

Yes. Belota supplies silicone conveyor belts suitable for food-processing applications, including food processing, packaging, and heating equipment. For applications involving direct food contact, the required material grade, food-contact standard, and hygiene requirements should be confirmed before selecting the belt.

Conclusion

Heat-resistant silicone conveyor belts are suitable for heat-cutting, bag-sealing, plastic packaging, packaging, fabric-cutting, and food-processing applications thanks to their heat resistance, non-stick surface, and stable performance during operation. However, each machine may require different belt dimensions, thickness, temperature resistance, load capacity, and core construction. Belota provides consultation and custom manufacturing of silicone conveyor belts based on actual machine requirements, helping customers select a suitable belt for stable operation while reducing problems such as belt burning, material adhesion, and cutting misalignment.