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Low Temperature Continuous Tunnel Oven for Thin Film Products - Top China Suppliers & Factory Solutions

Introducing our Mesh Belt Continuous Thin Film Drying Tunnel Oven, expertly designed for high-performance thin film products. As a leading factory in China, we prioritize the use of corrosion-resistant materials and advanced heating methods. Our systems ensure precise temperature control and are environmentally friendly, aligning with industry standards for efficiency, product quality, and environmental sustainability. When selecting a model, it’s essential to consider your production needs, budget, and the technical expertise of suppliers. Our ovens come equipped with state-of-the-art features focused on energy conservation and environmental upgrades, making them an ideal choice for modern production lines. Key trends in the industry are shifting toward standardization and enhanced eco-friendly practices, and our products are at the forefront of this evolution. Partner with us for reliable after-sales service and superior technology that meets all your thin film drying needs.
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    Technical Parameters

    Structure and Operation Principle

    1. Core Structure
    Furnace
    • Structure & Material: Constructed of high-temperature-resistant stainless steel (such as SUS310S) or welded carbon steel, with internal insulation panels (such as ceramic fiber modules) and air distribution plates.
    • Layout & Elements: Air inlets and temperature control devices are located at the top and bottom, and heating devices (electric, gas, or steam) are installed on the side walls. Air outlets and exhaust devices are located at both ends.
    Conveyor Options
    • Teflon mesh belt: High-temperature resistant (above 250°C), anti-stick, and wear-resistant, suitable for materials prone to adhesion, such as films.
    • Stainless steel mesh belt: Made of 304/310S, high-temperature and corrosion-resistant, suitable for high-temperature environments.
    Heating System
    • Electric heating: Infrared heating tubes or resistance wires provide fast heating and uniform temperature, suitable for high-precision requirements.
    • Gas heating: Low cost, but requires exhaust gas treatment facilities such as dust collectors, desulfurization and denitrification equipment.
    • Steam heating: Requires boiler support, has a moderate cost, and is suitable for companies with a steam source.
    Temperature Control System
    • Sensor: Thermocouples or infrared thermometers monitor temperature in real time.
    • Control Algorithm: PID control combined with fuzzy control dynamically adjusts heating power and conveyor speed.
    • Execution Layer: Temperature stability is achieved by adjusting steam flow, fan speed, or gas valves.
    2. Workflow

    The film enters the oven via a conveyor belt. The heating system generates hot air or radiant heat, which exchanges heat and moisture with the film, evaporating moisture. An exhaust device removes moisture. Some designs use fans to accelerate air flow, improving drying efficiency. The cooling section uses natural cooling or fans to reduce temperature, ensuring that the film meets winding requirements after exiting the oven.

    Frequently Asked Questions (FAQ)
    What materials are typically used to construct the furnace?

    The furnace is constructed using high-temperature-resistant stainless steel (such as SUS310S) or welded carbon steel, lined with ceramic fiber module insulation panels and air distribution plates.

    Which conveyor belt is suitable for films that stick easily?

    A Teflon mesh belt is ideal for materials prone to adhesion, offering high-temperature resistance (above 250°C), wear resistance, and non-stick properties.

    What heating methods are supported by this system?

    The system supports three heating methods: Electric heating (infrared tubes or resistance wires for precision), Gas heating (cost-effective), and Steam heating (for facilities with boiler systems).

    How does the temperature control system maintain thermal stability?

    It monitors temperature via thermocouples or infrared thermometers and employs PID combined with fuzzy control algorithms to dynamically regulate heating power, fan speed, gas valves, or steam flow.

    What is the purpose of the cooling section in the workflow?

    The cooling section utilizes fans or natural cooling to lower the film's temperature, ensuring it reaches the necessary temperature and condition for safe winding after exiting the oven.