OTF-1200X-VT-5 Split Vertical Tube Furnace with 5″ Quartz Tube and Stainless Steel Vacuum Flanges
The OTF-1200X-VT-5 is engineered for laboratory applications requiring rapid thermal processing and quenching of samples within a controlled atmosphere. Its vertical split tube design incorporates a 5-inch diameter quartz tube sealed with stainless steel vacuum flanges, enabling experiments under vacuum or flowing gases. This configuration supports precise thermal treatments and temperature measurements essential in materials research and processing.
Equipped with a MET-certified temperature controller, the furnace allows programming of up to 30 heating and cooling segments, ensuring accurate temperature profiles with ±1°C precision. The heating zone extends 880 mm with uniform temperature distribution, facilitating consistent sample processing. Mounted on a robust mobile stand, the furnace offers flexibility in laboratory placement and operation.
Key Features
- Split vertical tube furnace with double-layer steel casing and air-cooling system activated above 55°C.
- 5″ quartz processing tube (130 mm outer diameter, 120 mm inner diameter, 1400 mm length) included as standard.
- Maximum operating temperature of 1200°C with continuous operation up to 1100°C and heating rates up to 20°C/min.
- Stainless steel vacuum flanges with integrated vacuum gauge, valves, and sample suspension hook.
- Programmable temperature controller with PID auto-tune, over-temperature protection, and RS485 communication port.
- Standard 1/4″ barbed gas fittings with needle valves; optional Swagelok fittings and KF adapters available for enhanced vacuum and gas handling.
- Mounted on a heavy-duty mobile stand for ease of movement and positioning in the lab.
Technical Specifications
| Parameter | Specification |
|---|---|
| Furnace Type | Split vertical tube furnace with double-layer steel casing and air cooling |
| Power | 5.0 kW |
| Voltage | AC 208–240V, single phase, 50/60 Hz |
| Maximum Temperature | 1200°C |
| Continuous Operating Temperature | 1100°C |
| Maximum Heating Rate | ≤20°C/min |
| Processing Tube Material | Quartz |
| Processing Tube Dimensions | 130 mm OD, 120 mm ID, 1400 mm length |
| Heating Zone Length | 880 mm (single zone) |
| Temperature Uniformity Zones | 440 mm ±1°C, 480 mm ±2°C, 620 mm ±5°C |
| Temperature Controller | MET-certified, 30 programmable segments, PID auto-tune, ±1°C accuracy, RS485 port |
| Vacuum Sealing | Two stainless steel vacuum flanges with vacuum gauge, valves, and sample suspension hook |
| Vacuum Level | Down to 0.1 torr (dependent on vacuum pump) |
| Heating Elements | Molybdenum-doped Fe-Cr-Al alloy |
| Gas Fittings | Standard 1/4″ barbed fittings with needle valves; optional 304 SS Swagelok or KF adapters |
Typical Applications
Ideal for quenching experiments, thermal processing under vacuum or controlled atmospheres, and precise temperature measurement tasks in materials science, semiconductor research, and chemical processing.
Configuration & Operating Notes
The furnace includes a quartz tube and stainless steel vacuum flanges as standard. Optional accessories include digital vacuum gauges, gas flow meters, KF25 bellows and fittings, and various gas connection adapters to customize vacuum and gas flow setups. The built-in thermostat controls cooling fans automatically to maintain safe casing temperatures. Users should ensure proper vacuum pump compatibility to achieve desired vacuum levels and follow safety protocols when handling high temperatures and vacuum conditions.
