3 Layers Single Side Automatic Vacuum Drying Oven for Supercapacitor Electrode Drying

 

Series: Standard Vacuum Oven Series

Applicable Products: Batteries, battery cells, electrode sheets

Internal Dimensions: 350(H) × 850(W) × 800(D) mm × 3 layers

External Dimensions: 2000(H) × 1270(W) × 1150(D) mm

 

1. Basic Structure

Composed of 5 parts:

1. Frame structure

2. Inner chamber

3. Vacuum and nitrogen system

4. Electrical control system

5. External circulation system

 

2. Working Principle

Each unit can work continuously in a cycle. Basic process: open the door to place battery cells or electrode sheets into the oven, then set heating, vacuum, and nitrogen timing. The system automatically executes heating and timed ventilation based on preset parameters to complete the baking process.

 

3. Configuration

3.1. Inner Chamber: Fabricated from 3.0 mm stainless steel, with iron square tubing for reinforcement.

3.2. Frame: Manufactured from 1.5 mm high-quality cold-rolled plate; double-layer insulation incorporates aluminum silicate, aluminum foil cotton, and sound insulation cotton.

3.3. Hot Air System: Each layer comprises a fan, heating box, air duct, and piping to ensure temperature uniformity.

3.4. Control System: Encompasses PLC, touchscreen, pressure sensor, high-vacuum baffle valve, solid-state relays, temperature controller, and solenoid valve group.

3.5. Hardware: Comprises door, rear cover, vacuum pipes, and other stamped components.

 

4. Machine Features

4.1. Door Type: Single-opening; elastic double-layer glass door; three-layer pressure monitoring equipped with overpressure protection.

4.2. Inner Chamber Seal: Molded silicone O-ring, capable of withstanding high temperatures and corrosion.

4.3. Working Principle: External circulation of surrounding hot air. Double insulation restricts outer temperature to within +20°C of the ambient.

4.4. Heating Structure: O-type external air circulation, with left air outlet and right air intake to secure temperature uniformity.

4.5. High Vacuum Pneumatic Baffle Valve: Three-layer isolation, controlled independently.

4.6. Touchscreen Display: Fully automatic cycle control, reverting to vacuum pressure holding upon completion; digital display of safety temperature.

4.7. Multi-level Overtemperature Protection: Effectively curbs temperature runaway and heightens protection accuracy.

4.8. Touchscreen Central Operation: Simple and dependable to operate. PLC program control ensures steady performance.

4.9. Independent Layer Control: Each layer permits setting of total baking time, cycle time, vacuum time, and drying time. After parameter configuration, pressing the auto button launches the baking cycle. Automatic shutdown takes place once baking is done. An over-temperature alarm is triggered, accompanied by a red light and message display.

4.10. Nitrogen Charging Control: Charging halts automatically at the setpoint between -0.1 MPa and -0.02 MPa.

4.11. Fault Alarms: On-screen fault notifications and cause details during normal operation.

4.12. Vacuum Pipe: Resistant to corrosion.

4.13. Program Interlock: Prevents cross-contamination among layers.

 

5. Technical Specifications

No.	Item	Specification
1	Heating Principle	External circulation hot air heating
2	Power Supply	380V 50Hz 14KW
3	Gas Source	Dry gas: 0.1–0.2 MPa / Vacuum: -0.098–-0.1 MPa / Compressed air: 0.4–0.5 MPa
4	Temperature Range	Ambient to 120°C
5	Vacuum Retention	-0.1 to -0.098 MPa; ≥95% retention for 24h under ambient pressure
6	Display Error	≤±1°C between setpoint and stabilized value
7	Insulation	External temperature ≤45°C (excluding glass door)
8	Temperature Uniformity	≤±3.5°C within 50 mm from chamber walls at atmospheric pressure
9	Interlayer Temperature Difference	≤20°C (adjacent layer temp rise ≤100°C; ≤20°C above ambient)
10	Response Time	Ambient to 85°C in ≤30 min; core stabilization time: 90–120 min (no load)
11	Interface Position & Size	Located at rear; Vacuum: DN20; Gas inlet: Φ12 mm air tube
12	Inner Chamber Size	350(H) × 850(W) × 800(D) mm × 3 layers
13	Outer Dimensions	2000(H) × 1270(W) × 1150(D) mm
14	Color	Gray-white-orange (customizable)

 

6. Electrical Configuration

No.	Component	Specification
1	PLC	Inovance
2	Touchscreen	7-inch Inovance color screen
3	Temperature Controller	Digital intelligent controller / PID auto-tuning
4	Temperature Control Mode	PID + SSR (thyristor), Shanghai Yatai
5	Over-temp Protection	Shanghai Yatai Controller
6	Temp Sensor	Hualing K-type thermocouple
7	Vacuum Gauge	Digital / ±101.0 kPa, Taiwan Kingdom
8	Vacuum/Nitrogen Valves	Vacuum baffle valve
9	Alarm Device	Yijia
10	Heating Tube	Custom-made
11	Control Mode	Independent control for each chamber; PLC automatic circulation for heating, vacuuming, and nitrogen; operations set via touchscreen

 

7. Installation Requirements

7.1 Installation Distance: Minimum 1500 mm at the front; ≥500 mm on the sides and rear. The user must provide an independent power switch and external wiring.

7.2 Installation Site Conditions (to be provided by the buyer):

*7.2.1 Power: 3-phase 4-wire AC 380±38V, 50±1Hz

*7.2.2 Vacuum Source: -0.1 MPa, DN20 hose barb

*7.2.3 Nitrogen Source: 0.1–0.2 MPa, Φ12 gas tube

*7.2.4 Compressed Air: 0.4–0.6 MPa, Φ8 gas tube

7.3 Power Consumption: Maximum ≤12 kWh

7.4 Environmental Requirements:

*7.4.1 Temperature: -5~35°C, Humidity: ≤40%

*7.4.2 No flammable/explosive gases, liquids, or solids in the vicinity

*7.4.3 Prohibited to bake flammable, combustible, or explosive materials inside the oven