HTVO-90 High Vacuum Oven with 900°C Max Temperature, 18x18x18″ Chamber, Sliding Door, and 10-5 Torr Vacuum
HTVO-90 is engineered for precise heat treatment of air-sensitive components requiring both high temperature and high vacuum conditions. Its cubic heating chamber measures 18 inches on each side, providing a 91-liter volume suitable for various laboratory and industrial applications. The oven’s design ensures uniform heating and controlled atmosphere to maintain sample integrity during processing.
The oven achieves temperatures up to 900°C with a tightly controlled uniformity of ±2°C within a central 12x12x12″ zone. It maintains vacuum levels as low as 10-5 torr, combining a dual-stage rotary vane pump and an optional turbopump for enhanced vacuum performance. The sliding door is water-cooled to facilitate safe and convenient sample loading while preserving the vacuum seal.
Key Features
- Five-sided heating with SS310 reflective plates for maximum temperature uniformity.
- Stainless steel 304 chamber with 18x18x18″ internal dimensions and 91 liters capacity.
- Sliding water-cooled door for easy access and reliable sealing.
- Programmable PID temperature controller with 30 segments and ±1°C accuracy.
- Vacuum system includes dual-stage rotary vane pump and turbopump option, achieving <1e-5 torr.
- Integrated touchscreen control panel with optional PC interface software.
- Water chiller included for door cooling, maintaining temperature between 5 and 35°C.
Technical Specifications
| Parameter | Specification |
|---|---|
| Chamber Size | 18 x 18 x 18 inches (91 liters) |
| Constant Temperature Zone | 12 x 12 x 12 inches with ±2°C uniformity |
| Maximum Temperature | 900°C continuous operation |
| Temperature Control | PID controller, 30 programmable segments, ±1°C accuracy |
| Vacuum Level | < 5e-2 torr (mechanical pump), < 1e-5 torr (with turbopump) |
| Vacuum Ports | KF40 foreline, KF25 gauge, optional DN100/DN160 for turbopump |
| Power Supply | 208-240 VAC, 3-phase, 50/60 Hz, 50A, 15 kVA (other voltages on request) |
| Chamber Material | Stainless Steel 304 with SS310 reflective plates |
| Door Type | Sliding door with water cooling |
| Water Cooling | Recirculating water chiller EQ-KJ5300 included (5-35°C, 16 L/min flow) |
| Gas Inlet/Outlet | 1/4″ tube fittings |
Typical Applications
Ideal for heat treating air-sensitive materials, vacuum drying, annealing, and sintering processes requiring precise temperature control and high vacuum conditions.
Configuration & Operating Notes
Optional turbopump and PC interface software modules are available to enhance vacuum performance and data control. Calibration kits can be used to verify temperature accuracy. The water-cooled sliding door improves sample handling safety and vacuum integrity. Use anti-corrosion coolant in the chiller for optimal performance.



