IR Drying/Curing Tunnel

Product Specifications

Technical details and manufacturing context for IR Drying/Curing Tunnel

Definition

The IR Drying/Curing Tunnel is a component-level device used in industrial continuous processing lines. It consists of an enclosed tunnel through which a conveyor belt transports products or materials. Inside the tunnel, infrared emitters generate electromagnetic radiation in the infrared spectrum, which is absorbed by the material's surface and subsurface layers, converting to heat. This heat drives off moisture (drying) or initiates chemical cross-linking in coatings, adhesives, or polymers (curing). The enclosed design contains heat and allows for controlled thermal environments, while ventilation systems manage humidity and fumes. Typical applications include paint curing, adhesive setting, and moisture removal in manufacturing sectors such as automotive, electronics, and packaging. The tunnel is available in various configurations, with key parameters including tunnel length (3000–20000 mm), conveyor width (400–2000 mm), conveyor speed (0.5–10 m/min), IR power density (5–30 kW/m²), temperature range (60–250 °C), temperature uniformity (±5 °C), heating zone length (1500–15000 mm), electrical supply (380–480 V AC, three-phase, 50/60 Hz, per IEC 60038), installed power (20–500 kW), air flow rate (1000–20000 m³/h), exhaust air volume (500–10000 m³/h), insulation thickness (50–100 mm), machine weight (1000–15000 kg), and protection class (IP54–IP65, per IEC 60529). Materials of construction include stainless steel, aluminum, and quartz infrared tubes. These values are reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier. The tunnel is designed for integration into existing production lines, with interfaces for conveyor control, electrical supply, and ventilation. Verification of model-specific values and compliance with applicable standards is essential before procurement.

Working Principle

Infrared emitters (typically quartz, ceramic, or metal sheath elements) generate electromagnetic radiation in the infrared spectrum. This radiation is directed onto materials passing through the tunnel on a conveyor. The IR energy is absorbed by the material's surface and/or subsurface layers, converting to heat that evaporates moisture (drying) or initiates chemical cross-linking reactions (curing). The tunnel's enclosed design contains heat, while ventilation systems may manage humidity and fumes.

Common Materials

Stainless Steel, Aluminum, Quartz Infrared Tubes

Technical Parameters

Parameter	Typical range	Notes & selection driver
Tunnel Length	3000–20000 mm	Determines residence time and production speed.
Conveyor Width	400–2000 mm	Matches product footprint.
Conveyor Speed	0.5–10 m/min	Adjustable for curing time.
IR Power Density	5–30 kW/m²	Higher for faster curing of thick coatings.
Temperature Range	60–250 °C	Max temperature limited by material and safety.
Temperature Uniformity	±5 °C	Critical for consistent curing.
Heating Zone Length	1500–15000 mm	Affects energy consumption and footprint.
Electrical Supply	380–480 V AC	Three-phase, 50/60 Hz.IEC 60038
Installed Power	20–500 kW	Depends on tunnel size and IR power.
Air Flow Rate	1000–20000 m³/h	For solvent exhaust and heat distribution.
Exhaust Air Volume	500–10000 m³/h	Must meet local VOC emission regulations.
Insulation Thickness	50–100 mm	Reduces heat loss and surface temperature.
Machine Weight	1000–15000 kg	For floor loading and transport.
Protection Class	IP54–IP65	Higher IP for washdown environments.IEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Infrared Emitter Array
Generates and directs infrared radiation onto materials

Material: Quartz tubes with tungsten filaments or ceramic elements
Tunnel Housing
Enclosed structure containing heat and providing safety shielding

Material: Stainless steel or aluminum with insulation
Conveyor System
Transports materials through infrared processing zone

Material: Stainless steel mesh or belt
Temperature Control System
Monitors and regulates infrared output to maintain target temperatures

Material: Electronic controllers with thermocouples
Ventilation System Optional
Carries off moisture and fumes driven out of the material inside the tunnel.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for IR Drying/Curing Tunnel.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Leather Edge Coating Application System

View system integration details

Manufacturers of IR Drying/Curing Tunnel

Manufacturer profiles associated with IR Drying/Curing Tunnel.

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Frequently Asked Questions

What materials can be processed in an IR drying/curing tunnel?

The tunnel is designed for materials that can be conveyed on a belt and that absorb infrared radiation. Common examples include painted metal parts, coated plastics, adhesives on substrates, and printed materials. The specific compatibility depends on the material's absorption characteristics and thermal sensitivity, which must be verified with the manufacturer.

How do I determine the required tunnel length and conveyor speed?

Tunnel length and conveyor speed determine the residence time of the product in the heating zone. The required residence time depends on the drying or curing kinetics of the material, which are influenced by coating thickness, solvent content, and target temperature. These parameters must be established through testing or manufacturer recommendations, and the tunnel can be configured accordingly within the reference ranges.

What are the key safety considerations for operating an IR tunnel?

Safety considerations include proper ventilation to manage fumes and humidity, electrical safety per IEC 60038, and thermal protection to prevent overheating. The protection class (IP54–IP65) indicates the level of dust and water ingress protection, which is important for washdown environments. Operators should follow the manufacturer's safety guidelines and local regulations.

Can the tunnel be integrated into an existing production line?

Yes, the tunnel is designed as a component that can be integrated into a continuous processing line. It requires appropriate conveyor interfaces, electrical supply (380–480 V AC, three-phase), and ventilation connections. The physical dimensions and weight must be accommodated in the facility layout. Integration details should be coordinated with the manufacturer to ensure proper fit and function.

Data Basis

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Preliminary Technical Classification

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pressure:	Atmospheric (1 atm) - not designed for pressure/vacuum
other spec:	Conveyor speed: 0.1-10 m/min, Power density: 5-50 kW/m², Tunnel length: 2-30 m
temperature:	Ambient to 600°C (typical), up to 800°C with specialized emitters

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards