Why silicone coated Intermediate belt is the preferred choice for the infeed Belt before the press machine?

Why silicone coated Intermediate belt is the preferred choice for the wood-based panel industry ？

In the production process of wood based panel, the press feeder belts (Intermediate belt) is a key transmission component in the hot pressing process. Its performance directly affects the quality of the board, production efficiency and equipment stability.

The core role of the Intermediate Belt

1. Uniform transmission and pressure distribution

The board is pre-pressed (fiber/particle + adhesive) is smoothly fed into the hot press to ensure that the board is evenly pressed under high pressure ( usually 10-30MPa ) and high temperature (180-200℃) to avoid uneven density or stratification.

2. Heat conduction and buffering

Balance heat transfer during rapid temperature rise, reducing board edge warping or core curing due to local overheating.

3. Anti-deformation support

Preventing the board from deforming or breaking under high pressure.

As a factory decision maker, when choosing the intermediate belt, performance, cost and service life are the focus of consideration. The following are key selection factors and priority recommendations:

1. High temperature resistance (primary)

Temperature range: Ensure that the material can withstand the production line temperature (usually 180-200℃) for a long time to avoid breakage due to high temperature softening or aging.

Thermal stability: Prefer choose the materials with low thermal expansion coefficient (such as aramid, special coated polyester) to reduce the risk of thermal deformation.

2. Tensile strength and wear resistance

Tensile strength: Choose high strength materials to withstand continuous high pressure and tension and extend service life.

Wear resistance: The surface needs to be resistant to friction (such as adding silicon coating) to reduce the loss caused by friction of the board.

3. Dimensional accuracy and stability

Thickness uniformity: Avoid differences in board density due to belt uneven thickness

Creep resistance: Select materials that are not easily deformed under long-term loads to ensure board forming consistency.

4. Supplier technical support and after-sales service

Customization capability: the supplier can adjust the belt structure according to production line parameters, for better running performance

Quick response: Provide spare parts inventory to reduce downtime losses.

Huatao silicone coated Intermediate Belt advantages and features:

1. Outstanding high temperature resistance

Temperature tolerance: The silicone coating can work stably at 180-200℃ for a long time, is suitable for high temperature hot pressing environment of wood based panel boards.

Heat aging resistance: The silicone molecular chain (Si-O bond) is highly stable, not easy to harden or crack at high temperatures, and its service life is 30%-50% longer than that of traditional rubber coatings.

2. Excellent anti-adhesion performance

The resins and adhesives are difficult to adhere, reducing the frequency of downtime for cleaning (for example, from 2 times per shift to 0 times per shift).

3. Optimized friction and cushioning performance

The friction coefficient of the silicone coating is 0.3-0.6, which can prevent the board from slipping and avoid wear on the belt surface due to excessive friction.

4. High strength

The belt with spiral joint with high strength, and the tensile strength of polyester fiber supports the silicone coating and withstands the tension of the hot press

5. Huatao professional team

With more than 20 years experience, experienced technicians can provide professional technical guidance and customize solutions for customers. We are always there as long as customers need us.

Huatao silicone coated Intermediate Belt typical application ranges:

1. MDF & HDF: high surface finish is required, and the anti-stickiness of silicone can reduce the loss of sanding process.

2. Oriented Strand Board (OSB): large-sized strands are easy to scratch the belt surface, and the wear resistance of silicone can extend the service life.

3. Conti-press production line: at high speed (>1m/s), the elasticity of silicone can reduce the stress concentration at the edge of the board.

Through the application of silicone coated Intermediate Belt, the scrap rate caused by adhesion can be reduced ( from 1.5% to below 0.3% ), while reducing the overall production cost by about 12%-18%.

Hope above information is helpful for you, welcome to contact us for further discussion.