1700°C Three-Zone Tube Furnace Horizontal Tube Furnace

• Temperature: 1700°C
• Voltage AC: 380V/30kW
• Long-term working temperature: ≤1600°C
• Control cabinet: Independent control cabinet included
• Temperature control accuracy: ±1°C (integrated circuit control, no overshooting)
• Heating zone: Outer diameter 130*300*3 (excluding furnace tube)
• Temperature uniformity in furnace: ±1°C (depending on heating chamber size)
• Temperature control: 3 control points
• Temperature sensor & range: Type B, range 0-1700°C
• Programmable curve segments: 10-inch touchscreen control, 50 segments
• Heating rate: 1°C/hour to 15°C/min
• Heating elements: Silicon molybdenum rods
• Heating element position: Installed on both sides of the furnace tube
• Protection: Integrated modular control unit with precise control, dual-loop control and protection, including overshoot, over-regulation, under-regulation, broken thermocouple, phase loss, overvoltage, overcurrent, overtemperature, current feedback, and soft-start protection.
• Furnace body: Processed with CNC machining, polished, ground, acid-washed, phosphated, powder-coated, and high-temperature baked. Dual-color design, aesthetically pleasing, with oxidation resistance, acid/alkali resistance, corrosion resistance, high-temperature resistance, and easy cleaning.
• Furnace structure: Double-layer air-cooled furnace body design. Efficient air-cooling baffles ensure overall air circulation, cooling the conductive plates of heating elements before exhausting, preventing high-temperature oxidation and ensuring a stable working environment.
• Refractory material: Lining made of vacuum-formed high-purity alumina lightweight material. High-temperature alumina hollow ball boards are used in high-contact areas (furnace mouth and base), offering high-temperature resistance, low heat storage, excellent thermal shock resistance, and insulation (80%+ energy savings compared to traditional furnaces).
• Insulation material: Triple-layer insulation—aluminum silicate fiberboard, alumina fiberboard, and alumina (polycrystalline) fiberboard—providing 80%+ energy savings over traditional furnaces.
• External furnace temperature: Continuous operation without shutdown, surface temperature <45°C.
• Warranty coverage & duration: One-year free warranty (excludes heating elements and furnace tubes).
• Included accessories: One manual, one certificate, one pair of crucible tongs, one pair of high-temperature gloves, one manual.

Additional Equipment

• Lift door：Pneumatic door opening, controlled by foot pedal, with hot surface facing away from the operator.
• Touchscreen: Multilingual menu, multiple temperature rise process curve storage, historical curve storage, and data reports (7 inches).
• Computer Control: Controls furnace start, pause, stop, stores historical curves, sets temperature rise curves, reads temperature rise curves, sets parameters, etc.
• Siemens PLC Control: Real-time data reading with open ports for data communication with upstream and downstream equipment.
• Manual or automatic gas supply system
• Observation Window: Designed on the furnace door with high-temperature-resistant quartz glass.
• Movable Casters: Two swivel casters and two fixed casters.
• Rapid Cooling: Achieved with a frequency inverter and centrifugal fan for programmable cooling control.
• Quick Discharge Rack: The material rack is made of high-temperature steel, with wear-resistant heavy-duty refractory bricks on the top, enabling rapid
• transfer of materials from the furnace to an external platform in high-temperature environments.
• Multi-Point Temperature Control: Independent temperature control on multiple sides for improved temperature uniformity.
• High temperature furnace chamber with multi-sided heating for very good temperature uniformity.
• Stirring Fan: Metal stirring fan, can be linked with PLC to automatically start at designated temperature segments.
• Independent Control Cabinet: Separate control cabinet with an extended control cable length (up to 5 meters).
• Heat Storage Furnace Bottom: The furnace bottom sinks 50mm with a hollow design, supported by multiple vertical columns, increasing Ceramic Load-Bearing Plate and ensuring uniform heat distribution at the bottom.
• Exhaust Gas Treatment: Adds VOC exhaust gas treatment furnace with a capacity of 40m³,H or 80m³,H.
• Corrosion-Resistant Furnace Lining: Furnace lining material resistant to acids, alkalis, and hydrofluoric acid corrosion.
• Heating Element Protection: Prevents contamination from powder and corrosion from volatile substances and scratch.
• Clean Furnace Lining: Furnace lining made of ceramics, high-temperature glass, and high-temperature metals to prevent dust and volatile substances.
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Customizable charging racks according to requirements, for loading the furnace in two levels.