NK Flash 250
The NK Flash 250 is the most powerful flash-curing unit on the market, featuring an extra-large 250 × 250 × 80 mm curing chamber.
It’s the top choice for dental labs handling high-volume production, offering ultra-fast curing times essential for meeting demanding schedules.
Advanced Curing Technology
Stroboscopic light delivers a broad-spectrum output (250–950 nm) with high intensity for curing virtually all 3D resins - regardless of the printer used
Nitrogen connectivity enhances surface quality and reduces post-processing
360° light distribution ensures even curing with no need to rotate parts
Fast & Reliable Performance
Cure splints, trays, guards, and guides in under 7 minutes at 10 Hz standard frequency
Adjustable flash frequency for faster curing and greater control
Automatically logs run data for easy process validation
Built with durable, interchangeable steel components for long-term use and easy maintenance
Optimized for Productivity
Extra-large curing chamber: 4× the curing area and 60% more height than Otoflash®
Variable flash frequency may reduce curing times by up to 50%
Intuitive controls with programmable settings for quick access to commonly used profiles
Why Broad Spectrum Matters
Stroboscopic light covers a wide range (250–950 nm), unlike LEDs which emit in narrow bands. This broad spectrum matches the full absorption range of photoinitiators (240–510 nm), ensuring better curing and compatibility with most resins and composites — even future ones.Why High Intensity Matters
Each flash is ~10,000× more intense than LED light. This deeper, more powerful cure forms longer polymer chains, reduces residual monomers, and improves:-
Mechanical strength (e.g., Martens hardness)
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Biocompatibility and potential allergen reduction
Why Add Nitrogen
A nitrogen atmosphere prevents the sticky inhibition layer, leading to:-
Harder, smoother, more precise surfaces
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Fewer residual monomers
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Less post-processing
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Specification Details Curing Chamber Dimensions 250 (l) × 250 (w) × 80 (h) mm Device Dimensions 490 (l) × 430 (w) × 345 (h) mm Nitrogen Connectivity Yes Light Source Flash/stroboscopic Wavelength 250 – 950 nm Rated Voltage 110 – 240 V
