Split-body tube furnace with 3″ ID chamber, single PID-controlled zone rated to 1,250 °C. Includes 1″ & 2″ adapters, APM element heating, ceramic fiber insulation, and quick tube access—perfect for lab thermal processing and materials research.
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The Mellen NACCI NV12.5‑IC is a high-performance tube furnace designed for lab use and small-scale production. It features a 3″ internal diameter chamber with standard 1″ and 2″ adapters, a convenient split-body housing for quick tube swaps, and operates up to 1,250 °C using exposed APM wire heating elements backed by ceramic fiber insulation.
This single-zone model offers various heated lengths—6″, 12″, 18″, 24″, 30″, and 36″—operating on 208–240 V power, with wattage from approximately 2.4 kW to 5.5 kW depending on length.
Split-body design enables easy tube insertion and maintenance, while a PID temperature controller ensures stable and consistent thermal performance. With high-efficiency insulation and accessible loading, this furnace is perfect for research labs, gradient heating, sintering, alloy testing, and composite preparation.
Key Features
Max Temp: 1,250 °C continuous in air
Tube ID: 3″ (2.375″) standard; adapters for 1″, 2″ included
Heated zone lengths: 6–36″, single PID zone
Heating elements: APM exposed wire capable of high-temp operation
Insulation: Ceramic fiber for reduced heat-up times
Design: Split-body housing offers fast tube access
Control: PID controller with set-and-hold functionality
Power: 208–240 V; wattage depends on length (e.g., 2.4 kW for 12″, up to 5.5 kW for 36″)
Model Variations & Specs
| Heated Length | Tube ID | Voltage | Power |
|---|---|---|---|
| 12″ | 3″ | 208–240 V | ~2,400 W |
| 18″ | 3″ | 208–240 V | ~2,775 W |
| 24″ | 3″ | 208–240 V | ~3,700 W |
| 30″ | 3″ | 208–240 V | ~4,625 W |
| 36″ | 3″ | 208–240 V | ~5,500 W |
(6″ and other lengths available; contact us for custom sizing)
| Heated Length | 6×6, 6×12, 6×18, 6×24 |
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