OTF1200XVHP6 Vacuum Hot Press Furnace with 6-Inch Tube, 1100°C Max Temperature and 20 Ton Pressing Force
The OTF1200XVHP6 is engineered for laboratory-scale preparation of dense composite materials requiring precise vacuum or inert gas environments. This system integrates a vertical split-type tube furnace with a 6-inch diameter quartz tube and a high-capacity programmable electric press capable of exerting up to 20 tons of force. It is ideal for processes demanding controlled temperature and pressure to achieve material densification and bonding.
The furnace utilizes Ni-Cr-Al resistance wire heating to reach temperatures up to 1100°C within a 300 mm heating zone. Temperature control is managed by a digital controller with 50 programmable segments and ±1.0°C accuracy, displayed on a user-friendly touchscreen interface. The system includes water-cooled vacuum-sealed flanges and a quartz tube with KF-25D vacuum ports, enabling vacuum levels down to 10⁻⁴ Torr with an optional turbo pumping station.
Key Features
- 20-ton electrically driven programmable press with ±5 kg pressure accuracy and 20 mm maximum stroke.
- Split vertical tube furnace with maximum temperature of 1100°C and controlled heating rates (≤10°C/min to 800°C, ≤5°C/min above).
- Single-zone heating with a 300 mm length and approximately 80 mm constant temperature zone.
- Digital temperature controller featuring 50 programmable segments and data logging capability.
- Quartz tube (φ152 mm OD x 142 mm ID x 700 mm length) with water-cooled vacuum flanges and gas inlet ports.
- Included graphite pressing die set (1″ ID) and graphite pressing rods; optional alumina or BN rods available.
- Optional vacuum pumps for achieving high vacuum levels (10⁻⁴ Torr with turbo pump, 10⁻² Torr with mechanical pump).
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Temperature | 1100°C (up to 60 minutes) |
| Heating Rate | ≤10°C/min (RT to 800°C), ≤5°C/min (900°C to 1100°C) |
| Heating Zone Length | 300 mm |
| Temperature Controller | Digital, 50 programmable segments, ±1.0°C accuracy |
| Press Maximum Force | 20 tons |
| Press Stroke | 20 mm |
| Pressure Accuracy | ±5 kg |
| Press Power Supply | AC 208–240 V, 50/60 Hz, single phase |
| Furnace Power Supply | AC 208–240 V, 50/60 Hz, single phase |
| Furnace Output Power | 8 kW |
| Thermocouple Type | Type K |
| Quartz Tube Dimensions | 152 mm OD x 142 mm ID x 700 mm length |
| Vacuum Level (Optional Pump) | 10⁻⁴ Torr (turbo pump), 10⁻² Torr (mechanical pump) |
Typical Applications
This vacuum hot press furnace is suited for sintering and densification of composite materials, ceramics, and advanced functional materials under controlled atmospheres. It supports research and development in materials science, battery electrode fabrication, and other fields requiring precise thermal and pressure processing.
Configuration & Operating Notes
The system includes one set of 1″ ID graphite pressing dies and graphite pressing rods. Graphite dies are consumable and fragile; additional sets can be ordered. Optional alumina or boron nitride pressing rods are available. Water-cooled vacuum flanges require a minimum water flow of 12 L/min; a recirculating water chiller is recommended to conserve water. For vacuum operation, a suitable vacuum pump must be selected separately. Safe operation requires a two-stage pressure regulator on gas cylinders to limit pressure below 3 PSI.
