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Twin Tube IR LampsPowerful and stable — for wide webs and fast lines
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Films, flooring and artificial leather products, textiles, paper, nonwovens or coated webs require fast, uniform heating. Twin tube IR lamps deliver the highest power density of all IR lamp designs — available in short-wave and medium-wave versions.
Technical Documentation
Brochure
Manual
STEP / Drawing
Technical Data
Short-Wave (SW)Medium-Wave (MW)
Wavelength0,8 – 1,5 µm2 – 4 µm
Power Densityup to 500 kW/m²up to 80 kW/m²
Response Time~1 second3 – 10 seconds
Cross Section23×11 or 33×15 mm
Max. Length (SW)6.500 mm
Max. Length (MW)4.000 mm
Voltage230V / 400V / custom
Lifetime> 5.000 h (SW)> 10.000 h (MW)
ReflectorAluminum / Ceramic, separately mounted
Benefits
Easy Clean Design — Reflectors separately accessible, cleanable and individually replaceable without lamp removal. A decisive advantage in industrial environments with plasticizer vapors or coating mist.
System efficiency — SOPARA IR systems operate without active reflector cooling. No process heat is removed by cooling air. In practice, often 20–30% higher energy efficiency at field level.
Mechanical stability — Lengths up to 6.5 meters without sagging. Rectangular cross-section for homogeneous radiation distribution with fewer hotspots.
Fast response time — Short-wave: ~1 second, medium-wave: 3–10 seconds. Protects web materials during sudden line stops.
Flexible zoning — Multi-channel filament for independent heating zones and edge compensation within a single lamp.
Industry-standard cross-sections — 23×11 and 33×15 mm fit existing IR field cassettes. Retrofit without mechanical changes.
Available variants
Short-wave (SW): 0.8–1.5 µm, up to 500 kW/m², response time ~1 second, tungsten filament. Typical for curing, composites, thermoforming. Medium-wave (MW): 2–4 µm, up to 80 kW/m², response time 3–10 seconds, tungsten/NiCr/carbon fiber. Typical for coating drying, lamination. Both variants in same cross-section — switching from short-wave to medium-wave without cassette change.
Available Options
Single-sided cable connection — simplified installation in limited space
Dual-channel filament — two independent heating circuits for edge compensation
Carbon fiber filament — optimized MW emission, barely visible light, up to 30% less energy
Star filament — maximum mechanical stability of the heating wire
Ceramic reflector — for high-temperature environments
Custom lengths — up to 6,500 mm for widest webs
Ruby glass filter — reduction of visible light (SW only)
More options on request
Applications
Coating drying on continuous converting lines — water-based and solvent-based on films, paper, textiles, nonwovens and composites.
Lamination and bonding — preheating before the nip
Embossing — precise heating for dimensionally stable surfaces on PVC flooring and decorative films
Artificial leather and flooring — PU/PVC coating drying and gelation
Adhesive activation in laminating lines for packaging films and tapes
Ink drying in flexo, gravure and digital printing
Film stretching (BOPET, BOPP)
Composite heating and thermoforming
Paper and board finishing — functional coatings and barrier layers
Why SOPARA
84 years of infrared expertise — Founded 1942 in France. As one of the oldest specialty brands for industrial infrared technology, SOPARA brings over eight decades of development and manufacturing expertise to every plant.
References with European industry leaders — SOPARA IR systems are running at market leaders in automotive, composites, flooring and nuclear — powering the most demanding thermal processes at French and European top companies.
Test laboratory in Pusignan near Lyon — Your material is validated in the SOPARA infrared lab on actual substrates: wavelength, power density and process parameters. Concrete results before the investment decision — no theory, no assumptions.
System expertise — from component to turnkey plant — Not just IR lamps. SOPARA delivers complete thermal process solutions: lamps, reflectors, protective glass, IR fields, power control, switchgear and process control. One contact for the entire thermal process. Made in France, ISO 9001:2015 certified, 5 % of sales invested in R&D.
Frequently Asked Questions
What is a twin-tube IR lamp? — A twin-tube IR lamp consists of two parallel quartz tubes in a shared reflector housing. This design doubles the power density on the same area and enables more uniform heat distribution than single-tube variants.
Which wavelength is right for my process? — The optimal wavelength depends on the material. Short-wave (0.8–1.5 µm) for surface drying and rapid heating, medium-wave (1.5–4 µm) for water-based coatings and adhesives, long-wave (>4 µm) for thick substrates. SOPARA tests your material in their lab in Pusignan near Lyon — before the investment.
How long does a SOPARA IR lamp last? — The lifespan depends on operating hours, switching cycles and environmental conditions. SOPARA lamps are designed for industrial continuous operation. Specific lifespan figures can be provided after a process analysis.
What sets SOPARA lamps apart from other IR manufacturers? — 84 years of experience (founded 1942), own manufacturing in France, ISO 9001:2015 certified, and a dedicated test laboratory in Pusignan near Lyon. SOPARA delivers not just lamps but complete systems — from emitter to switchgear.
Can SOPARA assess my existing IR field? — Yes — SOPARA analyzes your drying or heating process, evaluates the efficiency of the existing IR system and identifies optimization potential. If a retrofit or replacement makes sense, SOPARA designs the appropriate solution — from the lamp to the switchgear.
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