INDUSTRIAL AND COMMERCIAL INFRARED SYSTEMS DESIGNED FOR YOUR APPLICATION
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Industrial Tunnel Ovens

EUROLINIA Infrared tunnel ovens are engineered for a wide variety of heat processing applications.

Horizontal & vertical infrared ovens

Custom built to specification‎

Tunnel Oven Manufacturer of Custom & Standard Industrial Conveyor Ovens

All tunnel ovens are manufactured, assembled, and pretested by EUROLINIA Company assuring you the top quality and best support.


Applications for Infrared Tunnel Ovens

Infrared heat tunnel ovens provide even and instant heating by surrounding the product with infrared heat emitters making them suitable for processing narrow or strand-like products. Infrared heat tunnels are often used to:

  • Dry coatings on flat braid for electrical tape.
  • Dry coatings on narrow fabrics.
  • Heat-set narrow fabrics.
  • Dry printing on narrow webs.
  • Cure striping on cable.
  • Heat-activate adhesives.
  • Heat fiber tow.
  • Heat or cure extruded products such as tubing, wire insulation, body-side molding or gaskets.
  • Dry adhesives for label stock.
  • Dry fiber optics.
  • Preheat wire prior to extrusion.
  • Dry fluoropolymer coatings on yarn, thread, roving and cordage.
  • Dry coatings on metals.

EUROLINIA Infrared tunnel and clam shell ovens are built with removable side panels or hinged housings for easy product threading and maintenance. Quickly and easy to setup and run, our Inrared tunnel ovens require less wiring and preparation. Before shipping the ovens to the customer, the oven will assembled, and tested to guarantee an easy and trouble free setup and operation.

How Do Infrared Heat Tunnel Ovens Work?

Manufacturers have relied on infrared to dry and heat medium to wide-width fabrics and webs for many years. However, the successful technological heating of goods handled from multiple ends has proven more difficult for infrared. That includes narrow webs and threaded products, such as tubes, threads, wire, and iron tape.

Researches of this difficulty showed that there are often fluctuations of the product's temperature even at a constant power of the radiating source. The precedent exacerbates the complexity of temperature fluctuations occurring in random spaces on the development and varying degrees. The leading cause is air jets. The air, which accelerates the infrared drying in medium and wide webs, refreshes the product in narrow webs and several end applications, even if the infrared key ensures a constant energy level.

Infrared horizontal tunnel oven

Narrow and multi-strand products such as wires and strands absorb infrared energy from a flat emitting plane as efficiently as wider webs. Both strands and flat webs use the same amount of energy per unit area. However, because the size of the yarns is smaller, they receive less collective energy. When both like products are exposed to cooling jets of air around them, as happens in production processes, stranded products are cooled more quickly because they have a smaller mass and have little resistance or barrier to light jets in the heating zone the process.

In contrast to this, web products have a considerable mass and, therefore, are not, for example, easy to cool. In addition, flat web design guarantees a more significant material barrier to the cooling air jets. As a result, stranded products are subject to large temperature fluctuations due to the cooling effect of the uncontrolled surrounding air in the process area.

Control or eliminate air

To prevent accidental cooling and ensure measured heating of thin and multicore products, infrared tunnels must apply proper design fundamentals that solve the problem of freezing the air. The basic level keeps the temperature and size of the air in the technological zone and how air enters and leaves the technical area. And more than any other, it is necessary to eliminate air from the technological zone.

Infrared heat tunnels include these basics of design for uniform heating of narrow and multi-strand products. The superiority of air control or air exclusion was demonstrated not too long ago in laboratory testing. A polished bronze strip 0.006 inches (6 mi) wide was heated with both short-wave infrared lamps with weightless freezing and an infrared thermal tunnel with a split casing. 

How do infrared thermal tunnels do it? 

For starters, they include wire heating components that keep the process area at a higher temperature. In addition to this, infrared heat is served from the top and bottom of the tunnel. The uniform heat distribution is further improved by offsetting the infrared heating components in each half of the thermal tunnel.

The mechanical system of the heat tunnel further increases the efficiency and uniformity of the heating. Although the large cross-section aluminized steel is essential for long life under severe conditions, the casings must be hinged to facilitate internal threading and product service access. Air intrusion into the heating zone itself is prevented by a seal between the upper and lower casings of the tunnel. Adjustable insulated deflectors additionally avoid intrusion air and heat loss on both inlet and outlet sides. Finally, the housings are perfectly insulated to maintain a uniform internal temperature.

Excluding air from the thermal process, the zone allows the rectangular infrared split-body thermal tunnels to maintain adequate and uniform heat transfer independently of whether they are placed horizontally or plumb. Versatility is guaranteed by the different widths, voltages, and power ratings of the thermal tunnels. As can be seen from the power rating depending on the length of the machine, the infrared thermal tunnels with split casing deliver a large amount of infrared energy to the product in a short presence time.

Temperature control

The control system uses the SCR to regulate the power supplied to the electronic infrared heating components, supported by thermocouple feedback control loops. The heat is regulated but does not insist on any auxiliary interest after installation. The control system is packaged in a NEMA standard enclosure with digital user interfaces. Infrared heat tunnel with feedback is an economical, field-tested heater and control unit for heating and drying narrow items and multiple end items.

Custom-Built Industrial Infrared Tunnel Ovens

These custom-built industrial furnaces and dryers generally include one or more split casing infrared heat tunnels. They have airtight seals between the separate tunnels to avoid air infiltration. They are equipped with pneumatic cylinders to open and close the infrared heater enclosures, a painted gray frame, and exhaust hoods.

Infrared Heat Tunnels

Custom-designed thermal tunnels typically include control systems with digital operator interfaces, NEMA enclosures, and SCR control substances that maintain the furnace temperature with the support of turnaround control loops. 

Almost all systems can be divided into separately controllable temperature zones to control the process and product properties better. Most importantly, the infrared tunnel ovens designed by custom order must be accompanied by the absolute technical assistance of the oven manufacturer. Having your custom oven system connected, pretested, and mounted on slides should minimize installation time and guarantee oven quality.

Vertical Infrared Tunnel Ovens

Pictures on the page show a vertical split-case infrared tunnel oven that dries an aqua-based coating on a narrow fabric one quicker than the process is changed. After coating, the material enters the tunnel oven from below and flows through the dryer and top. The tower incorporates three infrared thermal tunnels with seals between the modules to create an endless hot environment that dries several 12-inch wide fabric ends. The heater supplies heated make-up air to destroy the chimney effect.

Like almost all infrared process heating systems, this split case infrared tunnel dryer incorporates a control system housed in an enclosure. The reverse temperature association is executed from integrated thermocouples in the infrared emitters. Several separate temperature control zones allow the customer to adjust the processing of the product to achieve the most suitable results in terms of quality and speed. But the complete tower measures only 13.5 feet tall (machine direction) by 3 inches wide (crosswise) by 2 inches deep and is rated at 89 kW.

This industrial tunnel oven dries and cures a solvent-based adhesive coating applied to both sides of a narrow gray strip. It will combine hot air for solvent drying and Lower Explosive Limit (LEL) control with infrared heat for drying and curing. The intricacy of the two heat transfer types in one oven increases part speed and safely removes volatile agents without harming product properties. The narrow web drying and curing oven measures 25 feet (machine direction) by 3.5 inches (machine transverse) by 4.5 inches in height. The total combined hot air and infrared heat output is 24 kW.

Vertical and Horizontal Tunnel ovens

Horizontal Infrared Tunnel Ovens

In this oven, a uniform heating tunnel is formed with the support of infrared heaters, which have a split ceramic emitters cylinder. The cylindrical system encloses the product with active infrared heat, making the heaters efficient for heating pipes, extruded profiles, wires, cables, and fiber optics. Hinged covers simplify opening and access to the product.

When the coated iron strip enters the tunnel oven during operation, drying is initiated by hot air, which is served by two weightless knife-like heaters installed in separate air absorbers. When a narrow profile product moves through the dryer, infrared heaters perform drying by supplying a stream of infrared heat. For the coatings to cure, a separately controllable infrared heater at the outlet end provides the infrared heat that raises the temperature of the coating to start the curing process.

heating pipes

The control system controls the drying and curing operations, located in an enclosure installed in the oven. The control system maintains a long-term hot air temperature for the hot air heaters and a long-term component temperature for the infrared heaters, supported by a thermocouple feedback control loop.

Consider using an infrared heat tunnel oven if you need to dry, harden, or otherwise heat a narrow web or products processed from several ends. Infrared tinning, which is created and safely used for medium and wide fabrics, can not be applied to narrow products and multi-purpose processing. The weightless jets in ovens, which speed up drying more wide flat products, will refresh narrow products as they pass through the oven, including if the products receive heat from a radiation source.

Infrared split housings and deliberately designed infrared thermal tunnels are designed and used safely for narrow fabrics and fabrics and products with several end products.

They either regulate the airflow in the heating zone or eliminate air from the heating zone to heat narrow webs, narrow fabrics, and threaded products with multiple ends such as separated wire, tubing, extruded profiles, threads, and iron tape a measured and efficient manner.