Mellen NACCI 3″ Tube Furnace – 1,250 °C, 3‑Zone, 208–240 V, Split‑Body APM Heating

Description

The Mellen NACCI 3″ Tube Furnace (model NV12.5‑IC‑208/240 V‑3Z) is a versatile split-body laboratory furnace equipped with three separately controlled zones and a maximum temperature of 1,250 °C. The split design (via hinged housing) allows rapid tube insertion and removal, accommodating up to 3″ OD tubes while including adapters for 1″ and 2″ standard processes .

Heating is provided by exposed APM wire elements capable of 1,250 °C, integrated with high-efficiency ceramic-fiber insulation for speedy ramp-up and thermal uniformity.

Three-zone models offer enhanced uniformity with dual end zones 6″ each, and come standard with RS-485 communication and multi-segment ramp/soak programming via zone controllers—ideal for research applications requiring precision gradients or defined thermal profiles.

Key Features

• Max Temp: 1,250 °C continuous operation
• Tube ID: 3″ standard; includes 1″ & 2″ adapters
• Heating Zones: 3 zones with split-body 6″ end zones for improved uniformity
• Heating Elements: APM exposed wire capable of 1,250 °C
• Insulation: High-efficiency ceramic‑fiber for fast thermal response
• Split‑body Design: Hinged housing for quick access and tube changes
• Controllers: Separate PID for each zone with 8-segment ramp/soak, RS‑485 communication
• Safety: Independent over‑temperature alarms per zone cut power if triggered

Model Variations & Specs