Reliable 1200° C Vacuum Tube Heating Furnace for Laboratory Experiments

• Customization: Available
• After-sales Service: on-Line Service
• Warranty: One Year
• Model NO.: Made-to-order
• Type: Coating Production Line
• Coating: Vacuum Coating
• Substrate: Steel
• Certification: CE
• Condition: New
• Sample Stage: Dia. 100mm
• Heating Temperature: Max 500ºC
• Rotate Speed: 1-30rpm Adjustable
• Chamber Material: High Purity Quartz
• Transport Package: Wooden Case
• Specification: Customized
• Trademark: RJ
• Origin: Zhengzhou, China

Product Description

Compact Tube Furnace System

(A benchtop thermal processing solution with advanced programmability and safety features)

Technical Specifications:

• Programmable thermal profiles: 30-segment ramp/soak programs

• Precision temperature control:

  • PID auto-tuning with ±1°C accuracy

  • Maximum operating temperature: 1600°C

• Integrated safety systems:

  • Over-temperature protection

  • Audible/visual alarms

  • Unattended operation capability

• Vacuum/atmosphere operation:

  • Rotary vane pump for basic vacuum (10² mbar range)

  • Gas inlet for protective atmospheres (Ar/N/H)

• Processing capabilities:

  • Annealing

  • Sintering

  • Thermal treatment

Typical Applications:
Materials research
Ceramic sintering
Catalyst preparation
Small batch heat treatment

Parameter	Specification
Equipment Name	1600°C Compact Tube Furnace
Model	KJ-T1600-80 (400)
Display	Touch Screen
Furnace Structure	Double-layer shell with air cooling system, sliding rail design
Chamber Material	Alumina Fiber
Tube Material	High-Purity Alumina
Tube Diameter	Φ80mm (OD) (Customizable)
Heating Zone Length	400mm (Customizable)
Maximum Temperature	1700°C
Continuous Operating Temp	≤1600°C
Temperature Control	- 30 programmable segments for heating/cooling/soak - PID auto-tuning with over-temperature & thermocouple failure protection - Alarm system for unattended operation
Heating Rate	0-1000°C: 0-10°C/min 1000-1600°C: 5°C/min
Temperature Accuracy	±1°C
Thermocouple	Type S (Platinum-Rhodium)
Heating Element	Silicon Carbide (SiC) Rods
Safety Features	Over-temperature alarm, over-current protection, thermocouple break detection

Vacuum System

Component	Specification
Pump	DRV-10 Rotary Vane Pump
Connections	KF25 clamps & bellows for furnace-pump linkage
Vacuum Level	-0.1 MPa
Monitoring	Mechanical gauge
Operation Mode	Manual control

 

Feature	Specification
Flow Meter	Ion Flow Meter
Gas Type	Nitrogen (Other atmospheres configurable)
Valves	Pneumatic valves (Requires external air compressor)

System Features:

This advanced tube furnace system features:

• Heating Element: High-resistance heating wire for uniform thermal distribution

• Dual-Layer Shell Structure: Enhanced insulation with air cooling to maintain low surface temperature

• Intelligent PID Multi-Stage Program Control:

  • Phase-angle firing with SCR (Silicon Controlled Rectifier) power regulation

  • 30 programmable temperature segments (ramp/soak/cool)

• Chamber Design:

  • Alumina polycrystalline fiber lining for energy efficiency (±1°C uniformity)

  • High-purity quartz tube (contamination-free processing)

Performance Advantages:
 Excellent thermal uniformity (balanced temperature field)
 Rapid heating/cooling rates (up to 10°C/min)
 Low surface temperature (<60°C at 1600°C operation)
 Energy-saving operation (optimized thermal design)

Technical Note: SCR-controlled phase-angle triggering ensures precise power modulation while minimizing current surges. The alumina fiber insulation achieves <20% heat loss compared to conventional designs.

Technical Specifications - Laboratory Fluidized Bed Tube Furnace

Parameter	Specification
Product Name	Experimental Fluidized Bed Tube Furnace
Model	KJ-TCVD1200-L80LB3
Furnace Access	Swing-open design
Display	LED
Chamber Material	Alumina fiber
Heating Element	Premium alloy heating wire
Maximum Temperature	1200°C
Operating Temperature	≤1100°C (Lower temperature required when using metal containers)
Heating Rate	≤10°C/min
Heating Zones	3 independently controlled zones (continuous)
Zone Length	900mm (Customizable)
Tube Material	High-purity quartz
Sealing System	- Stainless steel vacuum flange with seals - Mechanical pressure gauge - Gas inlet/outlet ports - Top quick-release flange with thermocouple port - Bottom flange with load cell for weight measurement - Electronic differential pressure gauge (±10kPa range) - Temperature sensors at gas outlets
Control System	Intelligent multi-segment PID programming
Temperature Profiling	Custom time-temperature curves
Safety Alarms	Over-temperature & thermocouple failure alerts
Temperature Sensor	Type N thermocouple
Gas Preheater	Installed at lower right (preheats gas to 1000°C max before injection)
Flow Meters	2-channel float flow meters (N/CO, manual adjustment)
Special Configuration	310S stainless steel sealed container (OD60mm/ID50mm/420mmL) with: - Inlet/outlet valves - Thermocouple port - Lifting mechanism for positioning in heating zone

The activated carbon tube furnace consists of a tube furnace and a steam generator. The tube furnace section can reach a working temperature of up to 1500°C. During operation, the steam generator produces steam, which is then introduced into the tube furnace containing materials (such as nutshells) for heating, thereby producing activated carbon.  

This high-temperature tube furnace is suitable for the dynamic sintering of powders and granules, ensuring more uniform heating of materials, shorter sintering times, reduced energy consumption, and high-quality output. The tube furnace with a steam generator is primarily used in laboratories and enterprises for material sample analysis or large-scale preparation of activated carbon. The equipment can be customized based on production capacity or specific manufacturing conditions.

Working Temperature	≤1500ºC
Alumina Tube Diameter	Φ60	Φ80	Φ100	Φ120
Heating Zone Length	300/440/500/600mm (Customizable according to customer requirements)
Insulation Layer	High-purity alumina ceramic fiber
Heating Rate	0-10ºC/min
Temperature Control Accuracy	±1ºC
Temperature Sensor	Type B Thermocouple
Heating Element	Silicon Carbide Rod
Sealing Component	Flange
Accessories	Gloves, Crucibles, Tongs, Crucible Hooks
Others	Vacuum Pump, Gas Mixing System with Mass Flow Meter or Float Flow Meter

More specifications can be customized based on actual requirements.


This mini tube furnace is primarily used for industrial applications such as vacuum sintering, protective atmosphere sintering, vacuum deposition, CVD experiments, and material composition analysis. It is suitable for processing rare earth materials, electronic lighting components, crystal annealing, bioceramics, electronic ceramics, special alloys, magnetic materials, precision casting, and metal heat treatment.

Parameter	Specification
Display Type	Digital Display
Working Temperature	≤1000ºC
Heating Rate	Recommended 0~10ºC/min
Heating Zone Length	Single 200mm (Customizable)
Temperature Control Accuracy	±1ºC
Furnace Tube Size	Φ50×600mm (Customizable)
Heating Element	Resistance Wire
Thermocouple	Type N
Temperature Control	PID Auto Control via SCR Power Regulation
Programmable Heating Curves	30 Steps
Sealing Flange	Stainless Steel Vacuum Flange with Valve & Mechanical Pressure Gauge
Chamber Pressure	Slight Positive Pressure (Max 0.02MPa)
Chamber Material	Alumina Fiber

Parameter	Specification
Chamber Material	Alumina polycrystalline fiber
Tube Size	Φ25×1400mm (customizable)
Heating Zone Length	700mm (customizable)
Tube Material	Corundum
Working Temperature	≤1600ºC
Maximum Temperature	1700ºC
Temperature Accuracy	±1ºC
Temperature Control	Intelligent 30-segment PID programmable control
Safety Protection	Over-temperature and thermocouple failure protection
Sealing Method	Dual stainless steel vacuum flanges with mechanical pressure gauge and stainless steel stop valve; KF quick-connect on one end
Gas System	304 stainless steel flanges at both ends with high-temperature rubber seals; gas inlet/outlet ports; pressure gauge mounted on flange; precision needle valve for gas flow control (compatible with H, Ar, etc.)
Heating Rate	Recommended 0-10ºC/min
Heating Elements	Premium silicon-molybdenum rods
Temperature Sensor	Type B platinum-rhodium thermocouple
Warranty	12-month warranty; lifetime maintenance (excludes consumables like tubes & heating elements)

The tube furnace features a double-walled furnace body equipped with a cold air circulation system for automatic cooling, ensuring the exterior shell temperature never exceeds 45ºC. The furnace chamber utilizes premium high-purity alumina polycrystalline fiber material, formed through Japanese vacuum-adsorption molding technology. This construction delivers exceptional thermal insulation properties, high reflectivity, and outstanding temperature field uniformity.

Parameter	Specification
Furnace Structure	Double-walled housing with air cooling system
Chamber Material	High-purity alumina polycrystalline fiber formed by Japanese vacuum-adsorption technology, offering excellent thermal insulation, high reflectivity, and uniform temperature distribution
Max Temperature	1200ºC
Continuous Operating Temp	≤1100ºC
Heating Rate	Recommended ≤10ºC/min
Tube Material	High-purity quartz
Tube Dimensions	Total length 1200mm (estimated dimensions, final size may vary) • Central section with welded material plate • Customizable per customer requirements
Heating Zone Length	440mm (customizable)
Temperature Control	AI-based PID control system with: 1. 30-segment programmable heating/cooling 2. ±1ºC accuracy 3. Over-temperature & thermocouple failure protection 4. Auto-tuning function
Heating Elements	Alloy resistance wires
Temperature Sensor	Type N thermocouple
Additional Features	• 360° rotation (0-15 rpm adjustable speed) • 0-15° tilt adjustment
Flow Meters	Dual digital mass flow controllers (MFC): • MFC1 range: 0-10 SLM • MFC2 range: 0-10 SLM • 2 gas channels • Accuracy: 0.2% • 1/4" ferrule fittings • Precision humidifier for gas mixing • Independent stainless steel needle valves per channel • Touchscreen flow rate adjustment
Steam Generator	Operating conditions: • Ambient temp: 0-50ºC • Water requirement: Distilled/deionized (ultrapure) water • Gas requirement: Solid-free, non-corrosive to 304 stainless steel • Operating pressure: ≤0.1MPa (design ≤0.2MPa)

This vacuum tube furnace reaches a maximum temperature of 1200ºC with continuous operation at 1100ºC, featuring vacuum capability. The double-walled furnace structure incorporates an air cooling system to automatically maintain safe exterior temperatures.

The chamber's advanced materials deliver exceptional thermal insulation, high reflectivity, and outstanding temperature uniformity, making it an ideal heating solution for laboratories and research institutions.

Parameter	Specification
Furnace Structure	Double-walled housing with air cooling system for automatic temperature control
Chamber Material	High-purity alumina polycrystalline fiber formed by Japanese vacuum-adsorption technology
Max Temperature	1200ºC
Continuous Operating Temp	≤1100ºC
Heating Rate	Recommended ≤10ºC/min
Tube Material	High-purity quartz
Tube Dimensions	OD: 100mm × ID: 92mm × Length: 1000mm (Requires tube plugs to prevent thermal radiation, customizable)
Heating Zone Length	440mm (customizable)
Flange	Stainless steel sealing flange with quick-release mechanism, equipped with precision needle valve
Temperature Control	AI-based PID control system with: • 30-segment programmable heating/cooling • ±1ºC accuracy • Over-temperature & thermocouple failure protection • Auto-tuning function
Heating Elements	Resistance wires
Temperature Sensor	Type N thermocouple
Gas Ports	Flange includes vacuum connection port and gas inlet/outlet
Vacuum Pump	Rotary vane pump DRV10 (2L/S)
Ultimate Vacuum	10Pa
Vacuum Gauge	Digital vacuum gauge for real-time monitoring
Flow Meter	Single rotameter

Product Description:
This 1000ºC high-temperature tube furnace features a double-walled housing structure with an integrated air cooling system that automatically maintains the exterior temperature below 50ºC. The system incorporates 310S stainless steel tubing and a premium high-purity alumina polycrystalline fiber chamber formed through advanced Japanese vacuum-adsorption technology, delivering exceptional thermal insulation, high reflectivity, and uniform temperature distribution.

Parameter	Specification
Furnace Structure	Double-walled housing with air cooling system
Chamber Material	High-purity alumina polycrystalline fiber formed by Japanese vacuum-adsorption technology, featuring excellent thermal insulation, high reflectivity and uniform temperature distribution
Continuous Operating Temp	≤1000ºC
Heating Rate	Recommended ≤10ºC/min
Tube Material	Stainless steel
Tube Dimensions	OD: 102mm × Wall thickness: 10mm × Length: 1000mm (Customizable) • Tube plugs must be installed before operation to prevent thermal radiation
Heating Zone Length	440mm (Customizable)
Flanges	• CF-100 flanges welded at both ends with oxygen-free copper gaskets • Water-cooled flange design • Equipped with analog pressure gauge, shut-off valve, pressure sensor and relief valve
Pressure Sensor	Digital pressure gauge (0-1MPa range) with programmable high/low pressure alarms
Pressure Relief Valve	Automatic relief valve with programmable pressure setting
Temperature Control	AI-based PID control system with: 1. 30-segment programmable heating/cooling 2. ±1ºC accuracy 3. Over-temperature & thermocouple failure protection 4. Auto-tuning function
Heating Elements	Aluminum alloy resistance wires
Temperature Sensor	Type N thermocouple
Gas Ports	Vacuum connection and gas inlet/outlet ports on flanges
Flow Meters	Three rotameters mounted on top panel
Vacuum System	Rotary vane pump with digital vacuum gauge

Primary Applications:
The 1000°C high-temperature dual-tube tube furnace enables sample heat treatment in both oxygen and inert gas atmospheres, with a maximum operating temperature of 1000°C. The furnace tubes are equipped with flanges featuring pressure gauges and relief valves. When the internal pressure exceeds the preset value, the relief valve automatically opens to release gas, maintaining the desired pressure level.

Parameter	Specification
Furnace Structure	Dual-tube design
Heating Zone Length	300mm (customizable)
Tube Dimensions	Ø60×1200mm (customizable)
Operating Temp	≤1000ºC
Control System	30-segment PID programmable controller
Temperature Accuracy	±1ºC (with over-temperature & thermocouple failure alarms)
Heating Rate	0~10ºC/min
Heating Elements	High-temperature alloy wires
Gas System	Vacuum capable; compatible with N, H, etc. (valve-controlled)
Temperature Sensor	Type N thermocouple
Housing Structure	Double-walled design

Special Safety Features of Alloy Tubes:
The alloy furnace tubes maintain excellent ductility at 1000ºC under normal pressure. If internal pressure exceeds rated limits (beyond the alloy's long-term strength), the tube undergoes creep deformation rather than brittle fracture - gradually developing a controlled crack to safely release gas. This unique failure mode prevents explosive ruptures, instead forming a visible bulge before controlled gas release.

Additional Specifications:

• Sealing Method: Welded flanges at both ends with oxygen-free sealing rings

• Pressure Gauge: Digital display with programmable high/low pressure alarms

• Pressure Relief: Spring-adjustable safety valve for automatic pressure regulation

• Cooling System:

  • Cooling fans at both ends

  • Dedicated radiators along tube sides

  • Maintains safe temperatures at flanges/gas connections

• Vacuum Monitoring: Digital vacuum gauge

• Flow Control: Rotameter
  

  The heating elements of the high-temperature tube furnace utilize high-temperature resistance wires, while the furnace chamber insulation is made of polycrystalline fiber material, offering excellent thermal insulation, durability, high tensile strength, no impurity spheres, and high purity, with significantly better energy efficiency compared to domestic fiber materials.

  The entire furnace body adopts a double-layer inner shell structure with an air gap in between, ensuring that even when the chamber reaches its maximum temperature, the outer surface remains safe to touch without any scalding sensation.

  This high-temperature tube furnace can perform heat treatment on samples in high-pressure oxygen or inert gas atmospheres, with a maximum temperature of up to 1000°C. Therefore, it serves as a cost-effective experimental tool for research on superconducting materials and dielectric materials.

  Parameter	Specification
  Heating Zone Length	440mm (effective size) (customizable)
  Tube Dimensions	OD: 80mm * ID: 70mm * Length: 1000mm (customizable)
  Operating Temperature	≤1000ºC
  Temperature Control	30-segment PID programmable automatic control
  Temperature Accuracy	±1ºC (with over-temperature and thermocouple failure alarm)
  Heating Rate	0~10ºC/min
  Heating Elements	Resistance wires
  Compatible Gases	Nitrogen, hydrogen and other inert gases
  Temperature Sensor	Type N thermocouple
  Housing Structure	Double-wall structure
  Tube Material	Special alloy that can withstand 1000ºC at normal pressure with good ductility. When internal pressure exceeds the maximum tolerance (beyond the alloy's long-term strength), the tube undergoes creep deformation rather than brittle fracture, gradually developing cracks to release gas. This means even under excessive internal pressure at high temperatures, instead of exploding, the tube will first bulge and then develop cracks to safely vent gas.
  Flange Specifications	Both tube ends are welded with flanges using oxygen-free sealing rings
  Pressure Relief Device	Adjustable safety range by replacing springs
  Cooling System	When pressure exceeds set range, the relief valve automatically vents gas to reach preset pressure

A 1200°C mini vacuum atmosphere tube furnace is primarily used for high-temperature, medium-temperature, and low-temperature CVD processes in university laboratories and industrial research labs, such as carbon nanotube synthesis, thin-film coating on crystalline silicon substrates, diffusion welding of metal materials, and heat treatment under vacuum or controlled atmospheres.

Parameter	Specification / Description
Furnace Tube Size	Ø50×600mm (Customizable according to customer requirements)
Heating Zone Length	200mm (Customizable according to customer requirements)
Furnace Material	High-purity alumina fiber
Maximum Working Temperature	1200°C
Normal Working Temperature	≤1100°C
Temperature Control	PID control, supports 30-segment heating/cooling programs Accuracy: ±1°C Over-temperature & thermocouple break protection
Heating Rate	0~10°C/min
Heating Element	Resistance wire
Vacuum Sealing System	KF flange sealing at both ends, silicone O-ring
Temperature Sensor	Type N thermocouple
Furnace Tube	Quartz tube

This furnace features molybdenum disilicide (MoSi) heating elements and a double-layer shell structure with a 30-segment programmable temperature control system, utilizing phase-shift triggering and thyristor (SCR) control. The chamber is constructed with alumina polycrystalline fiber insulation, and an air-cooling system between the double shells ensures rapid heating and cooling. A support stand beneath the tube effectively prevents high-temperature deformation or cracking at both ends.

The furnace supports pre-vacuum pumping and can introduce various gases, including argon (Ar), nitrogen (N), oxygen (O), carbon monoxide (CO), and ammonia decomposition gas. Its advantages include:

• Uniform temperature distribution

• Low surface temperature

• Fast heating/cooling rates

• Energy efficiency

It is an ideal solution for protected atmosphere sintering, gas reduction, and other controlled-environment processes in universities, research institutes, and industrial laboratories.

Applications

Widely used in ceramics, metallurgy, electronics, glass, chemical engineering, machinery, refractory materials, specialty materials, and construction materials for:

• Powder calcination

• Ceramic sintering

• High-temperature experiments

• Material processing

• Atmosphere sintering & reduction

• CVD experiments

• Vacuum annealing

Parameter	Specification
Working Temperature	1500°C
Maximum Temperature	1600°C
Furnace Tube Size	Φ60×1000mm (Customizable)
Heating Zone Length	300mm (Customizable)
Temperature Control System	PID control, 30-segment programmable
Temperature Protection	Over-temperature & thermocouple break alarm
Temperature Accuracy	±1°C
Heating Rate	0~10°C/min
Vacuum Sealing System	Standard stainless steel vacuum flange with inlet/outlet valves
Heating Element	Molybdenum disilicide (MoSi) rods
Temperature Sensor	Type B platinum-rhodium thermocouple
Furnace Tube	High-purity alumina ceramic tube