Industrial Infrared Tunnel Ovens

EUROLINIA infrared industrial tunnel ovens are designed to rapidly and uniformly heat the surface of cables, wires, polymer pipes and tubes, dry fiber optics, etc in batch or continuous conveyor production using targeted high-intensity infrared radiation.

EUROLINIA's experts has designed tunnel heaters for a wide range of processes such as tempering, annealing, curing, preheating, drying, heat-shrinking and heat-forming.

⭐EUROLINIA Tunnel Ovens Advantages

• High efficiency is achieved by concentrating high-intensity infrared radiation and by using a circular reflector that efficiently distributes radiant energy inside the heating chamber.
  Additional efficiency is gained by installing three-level thermal protection.
• Easy to use. Placing a product into the tunnel oven is very convenient and simple.
  Emergency stop system for an immediate temporarily halting the heating process.
  Standby mode allows the tunnel heating system to maintain the pre-set operating temperature.
• High-quality processing due to the precision and uniformity of infrared heating of the product.
• Compliance with all safety standards.
• Automatic control and alarm reporting a failure (burnout) of the emitters or a short circuit displaying the corresponding zone of the detected malfunction.
• Fast chamber heating to a predefined operating temperature.
• Ease of access inside the heating chamber for maintenance and cleaning the emitters and reflectors.
• Reliable and durable. The tunnel’s body and all internal components of the tunnel heating chamber are made of high-alloy heat-resistant stainless steel.
• Specially treated ceramic emitters. Emitter radiating surface is coated with special ceramic glaze based on zirconium oxide, which, unlike quartz tubes and metal heating elements, is resistant to dust and organic dirt (burned and removed from the surface with a brush), high humidity and condensation when cooling and switching on, chemical compounds in the air of the heating chamber.
• Touch screen control panel. Easy to set up, monitor, and control the heating process according to the readings of non-contact surface sensors at the tunnel oven exit. Input and store temperature presets for various heating modes.
• Standard RS-485 interface and software. Operations like setting up, monitoring, and controlling can be performed from a remote computer. You can input and store the configuration files for various tunnel heating modes.

There are 4 standard types of the Infrared electric tunnel ovens manufactured by EUROLINIA:

• Vertical tunnel oven with a Cylindrical heating chamber (VC version)
• Vertical tunnel oven with a Rectangular heating chamber (VR version)
• Horizontal tunnel oven with a Cylindrical heating chamber (HC version)
• Horizontal tunnel oven with a Rectangular heating chamber (HR version)

The appropriate type of industrial tunnel oven should be preferred according to the requirements of the production process.

What to consider before ordering an infrared tunnel oven?

To offer you the right industrial tunnel oven, we need to know your particular requirements for the heating process and the type of material you need to heat.

We can offer the appropriate type of tunnel heating system depending on your specific application and the following parameters:

• Heating chamber diameter (or rectangular perimeter)
• Heating chamber length
• Electrical power and number of infrared emitters
• Control unit type and parameters

EUROLINIA infrared tunnel ovens are based on the ICH-100 special series ceramic infrared emitters featuring a concave radiating surface. The heating power is controlled based on the emitter's temperature and the type of material being heated. Heating uniformity inside the electric tunnel oven is achieved by special zoning of the total heating surface with separate control for each zone.

EUROLINIA tunnel ovens special features

We manufacture infrared tunnel oven heaters according to the customer’s application and test them at our facility to ensure that they meet all customer’s technical requirements.

There are horizontal and vertical tunnel ovens with 3 types of heating chamber profiles: cylindrical, parabolic or rectangular.

One tunnel heating section can be up to 2 meters long, with up to 8 maximum number of sections.

Two types of emitter layout inside the chamber

There are two types of emitter layouts inside the cylindrical heating chamber of the industrial tunnel oven:

• Type-1: Ceramic emitters are installed inside made of polished stainless steel reflectors with intermediate reflecting plates in between. The heat is reflected from the surface of the heated material back towards the heaters and reflectors, providing a so-called thermo-resonance effect. The goal is to redistribute and equalize the infrared radiation power over the heated surface. More efficient heating and minimal electrical power consumption are the main advantages of this layout type.
• Type-2: Concaved radiating surface ceramic emitters are installed close to each other and fill the entire surface inside the chamber. Type-2 series tunnels allow you to get the maximum power density of infrared heating of up to 64 kW per m² and temperature of up to 750 °C.

Maximum temperature

Standard version infrared tunnel ovens industrial feature maximum emitter temperature up to 650 °C. High-temperature versions feature maximum temperature up to 860 °C.

Inertia-free start/stop system

There are two options for the automatic inertia-free start/stop system (IFSS), which prevents emergency situations by immediately halting the heating process.

IFSS-1: A gap at the bottom of the heating chamber allows to instantly shift it away (upwards) from the heated object, thus terminating the heating process for reloading/removing the object or in case of an emergency.

IFFS-2: Bringing together and moving apart two halves of the tunnel heating chamber (half-cylinders) with continuously operating emitters. The system also covers the emitters with heat-blocking curtains to allow the reloading/removing of the heated object.

Automatic heating control system

To ensure high-quality, high-precision surface heating, the industrial tunnel ovens are equipped with an automatic heating control system (APCS).

Non-contact pyrometric sensors measure the heated object temperature so that the balance of intensity and temperature of the infrared heating emitters is constantly adjusted across all heating zones, taking into account the target temperature of the material at the exit of the tunnel oven. This process allows to minimize the deviations of the current heating temperature from the defined target temperature.

Whether you’re looking for an IR conveyor tunnel oven, batch curing/drying oven, or any other type of high-intensity heat-processing system, EUROLINIA has the engineering and manufacturing experience to meet your specific needs.