Precision anaerobic oven

Model

MDFS-216WNDGZ

Power supply

AC380V  3φ  50HZ  6.5KW（3 phase 5 wire）

Specifications and dimensions

Internal dimensions

W600 ㎜ × D600 ㎜ × H600 ㎜（Width x depth x height）

External dimensions

W1320 ㎜ × D1360 ㎜ × H1600 ㎜（Reference dimensions）

Oxygen content

The oxygen content inside the box is ≤ 0.1%, and the time required for the oxygen concentration to decrease from normal oxygen to 0.1% is less than 20 minutes. It is equipped with a high-temperature resistant oxygen content control instrument, a zirconia oxygen content sensor, and a set of high-temperature resistant self suction pumps. It can detect the oxygen content in real time and display the actual value, and has an superoxide alarm function.

Temperature control system

Temperature control

Temperature control range: RT+20~300 ℃

Heating rate: Within 50 minutes for room temperature to rise to 300 ℃ (empty furnace test)

Cooling rate: It takes about 40 minutes to reduce from 250 ℃ to 100 ℃ (cooling method: air cooling+nitrogen filling cooling) (empty furnace test)

Temperature resolution

±0.1℃

Temperature deviation

≤±1℃

Temperature fluctuation

≤±0.5℃

Temperature uniformity

±1.5℃at+100℃; ±2℃ at+200℃; ±2.5℃at+300℃（ Empty furnace testing ）

Structural design

Machine structure

Adopting a single door design, the control box is located on the top surface of the machine.

Internal material

Using SUS304 high-temperature resistant mirror stainless steel plate, t=2.0mm, and cleaned with alkaline soda water to remove oil stains and avoid the formation of particles during baking

External material

The exterior is made of 1.5mm thick SS41 # cold-rolled steel plate, which has undergone acid pickling, phosphating, and rust prevention treatment before being sprayed with plastic. The color is milky white.

Insulation material

Made by the Central Glass Fiber Company of the factory, with 120K grade high-density aluminum silicate fiber manually filled, the insulation performance is excellent, and the shell temperature is ≤ RT+35 ℃

Food grade fluorine free silicone rubber sealing strip is used, which is resistant to high temperature, aging, good sealing, and can continuously withstand high temperature above 300 ℃.

Temperature control system

Adopting a Japanese Mitsubishi PLC+7-inch color touch screen human-machine interaction interface, with fixed value/program (programmable control divided into 7 groups, each group has 16 segments, and 7 different baking processes can be set simultaneously) two control modes, PID automatic calculation, temperature control accuracy ± 0.3 ℃, with sensor wire breakage alarm function, curve mode, over temperature suppression, over adjustment function, precise temperature control, over impulse low, and over temperature alarm protection function, ensuring the safe operation of the product.

Timing function: Temperature to timing → Time to cut off electric heating → Completion indicator light emits sound and light alarm, maximum timing 0~9999H/M/S

The equipment system has three color signal lights, which meet SEMI standards. The signal light specifications include over temperature, fault indicator light quantity, and BZ alarm

Temperature control

Signal source: Imported CA sensing rod with a daily production capacity of ± 0.5%

Output controlled component: SSR contactless signal output

Circulating system

Single phase horizontal air supply inside the box, and strong pressure air supply inside the air ducts on both sides of the inner liner

Adopting three-phase asynchronous high-power high-temperature resistant long shaft silent motor, with noise<55dB, equipped with over temperature, overload, overcurrent, and phase sequence protection

Adopting large-diameter stainless steel turbine blades, with sufficient air volume to ensure uniform temperature

Oxygen content control system

Nitrogen intake filtration system: pressure regulating valve+1 set of oil-water separation filter, 10mm fast nitrogen interface

The nitrogen oxygen removal control system adopts two nitrogen import circuits, each equipped with imported solenoid valves, with dual flow automatic switching. After reaching an oxygen free environment inside the box, it automatically switches to low flow nitrogen, greatly saving nitrogen consumption. It can also be set according to process requirements to meet various process requirements.