1200 Degree Electric Laboratory Vacuum Annealing Vertical Tube Furnace

• Customization: Available
• After-sales Service: Free Lifetime After-Sales Service
• Warranty: Free Lifetime After-Sales Service
• Model NO.: GWDL-LGA
• Type: Ceramic Heating Equipment
• Certification: CE, ISO
• Structure: Horizontal Type
• Brand: Gwdl
• Heating Rate: Max20c/Min
• Product Name: Labraotory Tube Furnace
• Customized Support: OEM,ODM
• Temperature Control: 1c/-1cdepends on The Chamber Size)
• Working Temperature: 1100c(Continuous)
• Max Temperature: 1200 Deg C
• Tube Size: Tube Size
• Heating Elements: High-Temp Alloy Wire
• Temperature Accuracy: ±1°c
• Temperature Uniformity: ±1°c
• Gas Inlets: 2 Standard (Expandable to 10)
• Gas Mixing: Manual Via Independent Flow Meters
• Flow Meters: 2× 0–300 Ml/Min
• Transport Package: Wooden Case
• Specification: VACUUM: -0.1Mpa
• Trademark: GWDL
• Origin: China
• HS Code: 8514199000

Product Description

Product Description

• Tmax:1200ºC/1400ºC/1700ºC
• Thermocouple type K/S/B
• Tube Material:Stainless Steel Tube / Quartz Glass Tube / Alumina Tube
• Electric heating elements: High-temperature alloy resistance wire/SIC/MoSi2
• Heating elements are installed surrounding the furnace tube horizontally.
• Temperature control accuracy: ±1ºC
• Temperature Uniformity: Within ±5°C (The temperature control method depends on the size of the furnace chamber. For large furnace chambers, multi-point control can be adopted to achieve better temperature uniformity..)
• Heating Rate:Adjustable from 40°C per minute (fastest, non-linear) to 1°C per hour (slowest, non-linear).

• Vacuum Level: -0.1 MPa (supports multiple gases: O2, N2, Ar, H2, etc.)
• Flange: KF double O-ring 304 stainless steel flange
• Gas Inlets: 2 types (expandable to 1-10)
• Gas Mixing: Adjustable via individual flow meters
• Valves: Imported stainless steel valves (options: standard, stainless steel, solenoid)
• Flow Meters: Two 0-300 mL/min (options: mass flow meters, float-type flow meters)
• Pressure Monitoring: Dual-range pressure gauge (positive/negative pressure) (optional digital vacuum gauge)
• Vacuum Pump: Two-stage rotary vane pump (2 L/min)
• Gas Delivery: PV tubing (optional clean stainless steel piping for high-purity applications)

• Overpressure Protection System
  Automatically prevents hazards from blocked/closed exhaust ports or excessive furnace pressure. When detected (via pressure sensor or contact gauge), the system:1. Closes the intake valve. 2. Activates exhaust valve & alarm. 3. Ensures safe furnace operation.

• Gas Leak Safety Protection: Real-time monitoring with automatic shutdown, exhaust activation, and ventilation if hazardous gas levels exceed safety thresholds
• Furnace Lining is constructed from vacuum-formed high-purity alumina lightweight material (reinforced with alumina hollow ball boards at impact zones-mouth/base) for extreme heat resistance, minimal heat storage, and thermal shock durability (no cracking/spalling).
• Dual shell ventilated housing made of carbon steel for low surface temperature(<45ºC) and high stability
• Safety Feature: Main heating circuit disconnects automatically when the door opens at high temperatures.
• By integrating PID control with SCR technology, precise temperature control with comprehensive safety protection.
• 50-Segment Temperature Control Program Settings:1 curve = 50 segments;2 curves = 28 segments/curve; 3 curves = 15 segments/curve; 5 curves = 9 segments/curve.
• Housing coated in RAL 7035
• RS485 RS232 USB Communication Interface
• Lead Time:Standard sizes: within 7 days;Customized chamber: 7-15 days
• Warranty:1-year free warranty for the furnace; Tubes and heating elements not covered; Heating elements: free replacement within 3 months if damaged naturally.
• Accessories: Heating Elements ×2,Heating Element Mounting Kits ×2, Operation Manual ×1, Certificate of Compliance ×1, Special Crucible for Tube Furnace ×1, Thermal Insulation Plugs ×2, Sealing Rings (O-rings) ×2
• CE & ISO9001, ISO45001, ISO14001

• Tube Outer Diameter (mm)	Heating Zone Length (mm)	Tube Length (mm)	Voltage/Power
  Ф30-Ф60	300	1200	220V,4KW
  Ф60-Ф80	300	1200	380V,5KW
  Ф100-Ф120	300	1200	380V,8KW
  Ф130-Ф150	300	1200	380V,10KW
  Ф160-Ф180	300	1200	380V,12KW
  Ф200-Ф250	300	1200	380V,15KW

 

 

 

Abstract

The tubular furnace is a new type of high performance and high energy saving furnace developed by the international advanced  technology, including single tube, double tube, horizontal, open type, vertical, single temperature zone, double temperature zone,  three temperature zone and so on. It is mainly used for experiments and small batch production in colleges and universities, research institutes, industrial and mining enterprises, etc. With safe and reliable, simple operation, high-temperature control  precision, good insulation effect, large temperature range, high-temperature uniformity in the furnace, many temperature zones,  optional atmosphere, vacuum furnace, etc.

 

 

Principle

Loading and unloading materials adopt intermittent manual loading and unloading. When loading, place the material box on the holder of the material basin, open and take out the sealing end cover at one end of the pipe, put the material box holder with the material box, then install the sealing end cover on the flange of the furnace tube and tighten the clamp bolt. After the sintering
process of the product is completed, the process atmosphere should be maintained in a small amount and the temperature should be cooled. Only when the temperature in the furnace is lower than the process requirements, can the sealed end cover of the furnace tube be opened and the product is taken out.

 

 

Flange

The part that connects a pipe to a pipe, connected to the end of the pipe. There are holes in the flange, and the bolts make the  two flanges close. also has the gasket between flanges. One section of the flange contains a pressure gauge, which can be used to  observe other pressures in the furnace tube, and a floating ball flowmeter is installed on the inlet pipe to facilitate customers  to control the atmosphere flow according to the process requirements.

 

 

Tube Materials

Heat resistant steel, quartz glass, ceramic tubes and other materials are available for tube furnace. Heat resistant steel and  quartz glass tubes are usually used in the heating environment with the temperature lower than 1200 degrees Celsius, and ceramic  tubes are used the temperature lower than 1700 degrees. GWL provides different choices of furnace tube materials to facilitate  customers' selection of furnace tube materials for their processes.

 

 

Control panel

The control panel is equipped with an intelligent temperature controller so that the working status of the system can be observed  at any time. This product uses a reliable integrated circuit, and the working environment is good. Interference, the maximum  temperature when the furnace shell temperature ≤ 45 °C greatly improves the working environment, programmable curve, flexible and  convenient, simple operation.

 

Packaging & Shipping

 

Company Information

 

Certifications

FAQ

 Q: IF I NEED SPECIAL DESIGN ABOUT FURNACE CHAMBER DOES YOUR COMPANY CAN OFFER IT?
A: Don't worry about it, we have the excellent technical team, based on your requirement we can customize whatever you need.

Q: IF WE PURCHASE YOUR PRODUCT WOULD YOUR COMPANY GIVEN ANY TRAINING OR TECHNICAL SUPPORT?
A: LOL, that is a good question for us, just take relax, for sale is only the first step for us, we will give the basic training about how to use our product through Technical manual and operation videos, and also Engineer is 24hours standby your call, as we promised we provide the best service for our client.
Q: HOW IS YOUR PRODUCT AFTER-SALE GUARANTEE?
A: We provide one-year service for our product (except the heating element), the heating element we provide three-month service. And also, the engineer available doing service overseas.
Q: YOUR PRODUCT WITH ANY ACCESSORIES?
A: Yes, the standard accessories include (Heating Elements, Specification Certificate, Heat Insulation Brick, Crucible Pliers,
High-Temperature Gloves).
Q: HOW TO CONTACT YOUR COMPANY?
A: Our Company address is: No. 1 Xingye 1st Road, Jianxi District Science and Technology Industrial Park, Luoyang City, Henan Province, China