Infrared Core Drying Tunnel for Pulp Molding | Uniform Internal Drying for Complex 3D Shapes

Infrared Core Drying Tunnel for Pulp Molding | Uniform Internal Drying for Complex 3D Shapes

Product Description:
Our specialized infrared drying tunnel is engineered to provide rapid, uniform, and energy-efficient internal drying for three-dimensional pulp molded products. Utilizing a customizable mix of medium-wave and short-wave infrared emitters, it penetrates the thick pulp walls to drive moisture out from the core, significantly reducing drying time compared to conventional hot air methods. This results in improved product strength, reduced energy consumption, and higher line speeds.

Composition of Production Line:

• Infeed Conveyor (Synced with forming/pressing station)

• Customizable IR Emitter Array Modules (Top, Bottom, Side configurations)

• Stainless Steel Tunnel with Insulated Panels

• Reflective Cavity for Maximum Efficiency

• Zoned Temperature Control System

• Auxiliary Air Circulation & Moisture Exhaust System

• Outfeed Conveyor

• Central Control Cabinet with PLC and Touchscreen HMI

Technical Parameters:

Application:
Ideal for the internal drying and moisture reduction of various pulp molded products, including:

• Egg trays and fruit trays

• Disposable tableware (plates, bowls, clamshells)

• Industrial protective packaging

• Cardboard replacement products

Customization:
We offer highly customizable designs to match your specific product and production line. Options include the number and layout of IR zones, emitter wavelength mix, conveyor width and type, housing dimensions, control system integration, and safety features.

Feature:

• Deep Penetration: Infrared energy dries from the inside out, preventing surface hardening.

• Rapid Response & Control: IR emitters heat up and cool down almost instantly for precise temperature management.

• Zoned Drying: Independent control of temperature across different sections allows for optimized drying profiles for complex shapes.

• High Energy Efficiency: Direct energy transfer to the product and minimal heat loss to the surrounding air.

• Reduced Floor Space: Faster drying rates allow for a more compact tunnel compared to convection ovens.

Support and Services:
We provide comprehensive support including installation supervision, operational training, process optimization assistance, preventive maintenance plans, and timely spare parts supply.

Packing and Shipping:
The equipment is modularly disassembled and securely packed in weatherproof wooden crates. All electrical components are protected for safe long-distance shipping. Standard terms are FOB, with other incoterms available.

FAQ:

• Q: Why is infrared drying better for thick pulp molded products?

  • A: Infrared penetrates and heats the product's core directly, driving moisture out uniformly. This avoids the common issue of a hard, dry shell forming over a wet core, which can lead to warping or cracking.

• Q: Can the system be integrated into my existing conveyor line?

  • A: Yes. The conveyor system, inlet/outlet height, and control signals can be customized for seamless integration with your forming, pressing, or finishing stations.

• Q: How is the temperature profile for different products managed?

  • A: The PLC allows you to create and save multiple recipes. Each customizable zone's temperature and conveyor speed can be preset for different product types, ensuring optimal drying.

• Q: What about safety and overheating?

  • A: The system includes multiple safety interlocks, over-temperature protection, and automatic shutoff features. The exterior remains safe to touch during operation.

• Q: What is the typical energy consumption compared to a hot air oven?

  • A: Energy savings are significant, often 30%-50%, because IR directly heats the product, not the entire air volume in a large chamber. Exact figures depend on the product and line speed.