MW850X204 Four-Tube Vertical Microwave Sintering Furnace with 850°C Max Temperature and 1200W Power
The MW850X204 microwave sintering furnace is engineered to facilitate the simultaneous thermal processing of up to four samples within vertically oriented quartz tubes. This configuration is particularly advantageous for research and development environments requiring efficient batch processing under controlled atmospheres. Each quartz tube, measuring 20 mm outer diameter and 200 mm length, is equipped with vacuum-sealed flanges and valves, enabling sample handling within a glovebox to prevent exposure to air-sensitive materials.
Utilizing a 1200W microwave source at 2.45 GHz frequency, the furnace achieves rapid heating rates exceeding 40°C per minute, reaching a maximum operating temperature of 850°C. Silicon carbide (SiC) foam serves as the microwave susceptor heating element, housed within fibrous alumina insulation to optimize thermal efficiency. Temperature is monitored via a K-type thermocouple inserted through a dedicated port, with control managed by a 30-segment programmable controller allowing precise adjustment of heating rate, dwell time, and cooling profile.
Key Features
- Four vertical quartz tubes (20 mm OD x 16 mm ID x 200 mm length) with vacuum-sealed flanges and valves for multi-sample processing.
- Microwave heating at 1200W power with frequency 2.45 GHz ±25 MHz and adjustable output from 10% to 100%.
- Rapid heating capability exceeding 40°C/min, programmable up to 50°C/min with 30-segment temperature control.
- SiC foam heating elements acting as microwave susceptors, thermally insulated by fibrous alumina casing.
- Precision temperature detection using K-type thermocouple with control accuracy of ±5.0°C.
- Stainless steel casing designed for microwave radiation shielding and energy-efficient vacuum casting insulation.
- Glovebox-compatible sample loading and unloading to protect air-sensitive materials.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | MW850X204 |
| Maximum Temperature | 850°C |
| Heating Rate | Up to 50°C/min programmable (typical >40°C/min) |
| Microwave Power | 1200W adjustable 10-100% |
| Microwave Frequency | 2.45 GHz ±25 MHz |
| Quartz Tubes | Four tubes, OD 20 mm x ID 16 mm x Length 200 mm, one end closed, with vacuum flanges and valves |
| Heating Element | Silicon Carbide (SiC) foam susceptor |
| Temperature Sensor | K-type thermocouple |
| Temperature Control | 30-segment programmable SCR controller, ±5.0°C accuracy |
| Power Supply | 110-120 VAC, Single phase, 50/60 Hz |
| Microwave Leakage | ≤ 3 mW/cm² at 1 meter distance |
| Casing Material | Stainless steel with microwave shielding |
Typical Applications
This microwave sintering furnace is well suited for rapid thermal processing of ceramic, semiconductor, and composite materials requiring controlled atmospheres. Its multi-tube design enables parallel sintering of multiple samples, increasing throughput in research labs. The sealed quartz tubes with valves facilitate processing of air-sensitive compounds without exposure to ambient air.
Configuration & Operating Notes
The furnace includes four quartz tubes with vacuum flanges and valves as standard consumables; additional tubes must be ordered separately. Samples should be loaded and unloaded inside a glovebox when working with air-sensitive materials to maintain inert conditions. The SiC foam heating elements are designed for microwave absorption and rapid heating but require careful handling to avoid damage. The system features over-temperature and thermocouple break protection for safe operation.
