1700C Controlled Atmosphere Muffle Furnace （STQ-8-7）

Model Name

Controlled Atmosphere Muffle Furnace

Model No.

STQ-8-17

Chamber Size

W200xD200xH200mm （8 liters）

Usage

The atmosphere furnace  provides  the  perfect  environment for various  procedures  in  many  laboratories, providing the controlled temperature and atmosphere specific projects  require. The vacuum or controlled atmosphere is desired to complete tasks that require exact temperatures with no room for error. This is the best way to ensure the successful outcome of your project because it is sealed tightly to ensure the proper environment.

Type

Atmosphere type, front loading

Furnace Structure

1.the furnace is mainly consists of steel shell, chamber, gas system, cooling device, temp control system 2.The chamber is consisting of chamber material, insulation material and heating elements

3.Temperature controller is consisting of 30 programmable PID controller, control elements and thermocouple  Integrated the furnace body and the temperature controller in one, the furnace is fixed on the temperature controller

Max. Temperature

1700℃

Continuous Operating Temp.

1620℃

Voltage/Power

AC220V/5KW

50/60Hz/Single phases

Heating Element

Adopt top brand MoSi2 Rod as heater with at least 4 pcs installed , which has the feature of anti-corrosion and resistance with strong exhaust materials

2. The heating elements are placed in left and right two sides for heating 

Heating Rate

1~10℃/min freely adjustable, suggest 6-8C/min for longer life using of furnace

Temperature uniformity

+/- 5C (without loading in effective working area), hold temperature at 800c in 2 hours

Chamber Material

1. Furnace chamber adopted high quality alumina polycrystalline fiber, which used Japanese technology  (vac-sorb forming alumina polycrystalline fiber) with good insulation and durability properties, high tensile

strength and no miscellaneous ball; So this furnace much more energy saving than common fiber materials. 2.Higher quality 1500 grade fiber alumina as refractory lining, pure white color

3.Paint and bake the surface of the chamber material with a layer of import high temperature heat resistant and heat reflecting coating to reduce the corrosion

Thermocouple

B type Temperature tested from its backwall center of the chamber

Temperature Controller

(LCD Touch Sreen )

1. Independent Control cabinet, Defined application within the constraints of the operating instructions

2. 7 inch digital LCD Touch Screen controller 

It with 15 programs and each 30 segmnets totally 450 segments 

3. Simultaneous LCD display of actual temperature VS set point

4. PID automatic control and auto-tune function

5. +/- 1 ºC temperature accuracy

1. Germany SEMIKRON thyristor controller thyristor phase-shift voltage control, PID parameter self-tuning function, over-temperature alarm and open circuit alarm function. The temperature control has functions such as automatic temperature rise, automatic heat preservation,and automatic shutdown, which can meet the requirements of continuous constant temperature and temperature control.

 Data Log Function

  The heating curve can be recorded and exported with USB port installed with excel form   

Electronic Component

High grade electric parts air switch, A.C contactor,

Power Regulator with Germany Semikron SCR etc.

High Quality Transformer

Transformer brand Spanish joint venture pure copper autotransformer; input and output specifications are: temperature control meter PID output 4-20ma signal, SCR thyristor receive 4-20ma signal and make adjustments according to the instrument, and then connect the transformer to adjust the current and voltage Matching output, the transformer is connected to the silicon molybdenum rod heating element for heating

Furnace Shell

1. High quality cold-rolled steel sheets CNC processing

2. Environmental electrostatic plastic-spraying on surface after deoiling, derusting, phosphating etc.

3. Engineered with safety in mind, the furnace has a double shell construction to keep the outer case cool.

4. The double shell will not be deformed for long-term use,

Vacuum Pump request  

Pump Speed : 4L/S ,0.55KW , 220V ,50HZ

Water Chiller Request

2P , flow rate : 1m³/h  Power : 2.18KW ,220V, 50HZ ,1/2 Pipe connectors  

Furnace door

1.Double doors design, Door opens sideways, Manual type

2.Inner furnace door with high temperature insulating function and outer door with high temperature silicon

gasket sealed to get vacuum condition  

3.Furnace door is with water cooling structure to avoid high temp and enusre safety

Inlet and Outlet Ports

1. The gas inlet and outlet ports are designed on the side of the furnace body and can be supplied with inert protective gas. The gas flow rate is controlled by a float flowmeter with a range of 60-600ml/min or 1-1Ll/min

Gas type

Gases such as Nitrogen, Argon, O2 , F etc.

Sealing performance

high temperature PTFE gasket is installed on the furnace door to ensure the reliable sealing of the furnace; the furnace body is equipped with an air inlet, which can extract vacuum;

Vacuum degree

Ultimate vacuum level for STQ furnaces is around 20000Pa with hose barb connections. Please keep in mind

that our STQ series of atmosphere furnaces are NOT designed to be vacuum furnaces, the vacuuming part is mainly for users to pre-vacuum the chamber, before putting in inert or other protective gases.

If customer require higher level sealing performance with high vacuum, please order the vacuum furnace series

Gas Pressure

Max gas pressure for standard atmosphere furnace is 0.02Mpa

If higher gas pressure required, please order our professional atmosphere furnace, Max 0.3Mpa

Certification

Safety Precautions

1.  Overheating & Broken thermocouple protection.

2.  Leakage circuit breaker

3.  Over-temperature protection and alarm allow for operation without attendant(s).

4.  Microprocessor-based PID control with self-tuning capability to prevent overshooting of set temperature

5.  Built-in ammeter and dual voltmeters for easy monitoring and troubleshooting.

Warranty

1.  One-year limited manufacturer's warranty (Consumable parts such as ceramic crucible, thermocouple and heating elements are not covered by the warranty, please order replacements at related products respectively

Site Installation Conditions

1.  Power supply: Random standard 5-meter power supply line (if the distance between the cabinet and the equipment is more than 5 meters, the power supply line needs to be purchased from the manufacturer by itself or separately), three-phase 380V, 50HZ, the user must reliably ground the equipment.

2.  Environment: The temperature of the equipment is 0-45℃ .

3.  Ground: The ground is flat and has good load-bearing capacity; there is no debris piled up in 1000 mm around the equipment.

Optional Accessories

Mass Flowmeter

Gas Float Meter

Vacuum Pump

Thermocouple

Exhaust System

Crucibles

Warnings

1.  Toxic or explosive gases generated by the heated products may do a harmful to the inside chamber

2.  Small cracks may appear on the surface in daily using