Three-Layer Single-Door Vacuum Drying Oven for Lithium Battery Production

Three-Layer Single-Door Vacuum Drying Oven for Lithium Battery Production

1. Application Scope:

Suitable for baking lithium-ion battery electrodes, cells, and pre-injection batteries

2. Configuration:

A. Oven Chamber: Made of 3.0 mm imported 304 stainless steel, with stiffeners made of the same material

B. Frame: Made of 1.5 mm and 2.0 mm high-quality cold-rolled steel plates, composed of double insulation layers, using aluminum silicate cotton, aluminum foil cotton, and sound insulation cotton as layered materials

C. Control System: Consists of PLC, touchscreen, pressure sensor, high vacuum baffle valve, solid-state relay, temperature controller, and solenoid valve group

D. Hardware Components: Includes door, rear cover, vacuum pipes, and other stamped parts

3. Machine Features:

A. Double-layer thermal insulation structure with external surface temperature ≤ 45°C (excluding glass door)

B. High vacuum pneumatic baffle valve with three independent layers controlled separately

C. Touchscreen display, fully automatic cycling control, returning to vacuum pressure hold upon completion; digital display for safety temperature

D. Resilient double-layer glass door, with three-layer pressure detection and over-pressure protection

E. Equipped with multi-stage over-temperature protection device, effectively preventing temperature runaway and improving temperature safety control precision

F. Touchscreen centralized control, easy and reliable operation; program controller adopts PLC, stable and reliable performance

G. Each oven layer is individually controlled, with separately configurable total baking time, cycle time, vacuum time, and drying time. Once parameters are set, the system enters the automatic baking program at the press of a button. Upon completion of the baking cycle, the oven automatically shuts down. If the temperature exceeds the safety threshold, the system automatically alarms, the red warning light is activated, heating stops, and an alarm message appears on the display

H. The system can automatically stop nitrogen filling when the pressure reaches a set value between –0.1 MPa and –0.02 MPa

I. During normal operation, alarm messages and fault causes are displayed on the screen

J. Vacuum pipelines are corrosion-resistant

L. Program interlocks prevent gas crossover between layers

4. Technical Parameters:

5. Electrical Configuration:

6. Installation Conditions:

6.1 The front of the oven must be at least 1500 mm from the wall; sides and rear must be at least 500 mm

6.2 Installation Area Conditions (Provided by Customer):

l 6.2.1 Power Supply: Three-phase five-wire, frequency: 50 ±1Hz

l 6.2.2 Vacuum: Pressure –0.1 MPa, vacuum pipe DN20

l 6.2.3 Nitrogen: Pressure 0.1–0.2 MPa, gas pipe φ12 mm

l 6.2.4 Compressed Air: Pressure 0.4–0.6 MPa, gas pipe φ8 mm

6.3 Power Consumption:

l 6.3.1 Maximum consumption: ≤9 KW/hour

l 6.3.2 Average consumption: ≤2.5 KW/hour

6.4 Environmental Requirements:

l 6.4.1 Temperature: –5 to 35°C; Humidity: ≤40%

l 6.4.2 No flammable/explosive gases, liquids, or solids in surrounding environment

l 6.4.3 It is strictly prohibited to bake flammable materials, combustible gases, or explosive substances inside the oven