Split-body 3″ ID tube furnace with three independently controlled zones to 1,250 °C. Features APM exposed-element heating, ceramic-fiber insulation, RS-485 PID controllers, and included 1″/2″ adapters—ideal for gradient heating and lab research.
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The Mellen NACCI NV12.5‑IC tube furnace offers versatile, high-precision thermal processing in a split‑body chassis. Configured with three independently controlled zones across heated lengths from 6″ to 36″, it provides precise gradient temperature control up to 1,250 °C.
This furnace includes standard adapters to accept 1″ and 2″ OD process tubes, while its split‑body design allows quick tube access and changes. APM exposed-wire heating elements deliver reliable high-temperature performance, supported by efficient ceramic-fiber insulation for fast ramp‑up and thermal uniformity.
Each zone includes its own PID controller with eight-segment ramp/soak programming and RS‑485 communication capabilities. For enhanced safety, each segment features an independent over‑temperature cutoff to instantly cut power if thresholds are exceeded.
Key Features
Max Temp: 1,250 °C (optionally 1,325 °C with REH elements)
Tube ID: 3″ standard; includes 1″ and 2″ adapters
Heated Lengths: 6″ to 36″ (3‑zone splits)
Heating: APM exposed elements within fiber insulation
Split‑Body Design: Hinged housing for quick tube swaps
Control System: 3 PID zones, 8-segment programming, RS‑485 interface
Safety: Individual over-temperature protection per zone cuts power upon fault
Configurations: Length-dependent power: ~3,700 W (24″), ~5,500 W (36″) at 208–240 V
Model Variations & Specs
| Heated Length | Max Power (3‑Zone) | Voltage | Tube ID |
|---|---|---|---|
| 24″ | ~3,700 W | 208–240 V | 3″ (includes 1″/2″ adapters) |
| 30″ | ~4,600 W | 208–240 V | … |
| 36″ | ~5,500 W | 208–240 V | … |
Exact specs vary by model; consult for custom configurations.
| Heated Length | 6×18, 6×24, 6×30, 6×36 |
|---|
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