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Three Layer Energy-saving Intelligent High Vacuum Drying Oven for Cell Electrode Making
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: Made of 3.0 mm stainless steel with iron square tubing reinforcement.
3.2. Frame: Made of 1.5 mm high-quality cold-rolled plate; double-layer insulation using aluminum silicate, aluminum foil cotton, and sound insulation cotton.
3.3. Hot Air System: Each layer consists of fan, heating box, air duct, and piping to ensure temperature uniformity.
3.4. Control System: Includes PLC, touchscreen, pressure sensor, high-vacuum baffle valve, solid-state relays, temperature controller, solenoid valve group.
3.5. Hardware: Includes 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 with overpressure protection.
4.2. Inner Chamber Seal: Molded silicone O-ring, resistant to high temperatures and corrosion.
4.3. Working Principle: External circulation of surrounding hot air. Double insulation maintains the outer temperature within +20°C of the ambient.
4.4. Heating Structure: O-type external air circulation, with left air outlet and right air intake to ensure temperature uniformity.
4.5. High Vacuum Pneumatic Baffle Valve: Three-layer isolation, with independent control.
4.6. Touchscreen Display: Fully automatic cycle control, returning to vacuum pressure holding after completion; digital display of safety temperature.
4.7. Multi-level Overtemperature Protection: Effectively prevents temperature runaway and boosts protection precision.
4.8. Touchscreen Central Operation: Simple and reliable to operate. PLC program control guarantees stable performance.
4.9. Independent Layer Control: Each layer allows setting of total baking time, cycle time, vacuum time, and drying time. After parameter setup, pressing the auto button initiates the baking cycle. Automatic shutdown happens once baking finishes. An over-temperature alarm is activated with a red light and message display.
4.10. Nitrogen Charging Control: Charging stops automatically at the setpoint ranging from -0.1 MPa to -0.02 MPa.
4.11. Fault Alarms: On-screen fault warnings and cause explanations during normal operation.
4.12. Vacuum Pipe: Resistant to corrosion.
4.13. Program Interlock: Prevents cross-contamination across 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 |
35(H) × 85(W) × 80(D) cm × 3 layers |
|
13 |
Outer Dimensions |
200(H) × 127(W) × 115(D) cm |
|
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 in front; ≥500 mm on sides and rear. User must provide independent power switch and external wiring.
7.2 Installation Site Conditions (provided by buyer):
l 7.2.1 Power: 3-phase 4-wire AC 380±38V, 50±1Hz
l 7.2.2 Vacuum Source: -0.1 MPa, DN20 hose barb
l 7.2.3 Nitrogen Source: 0.1–0.2 MPa, Φ12 gas tube
l 7.2.4 Compressed Air: 0.4–0.6 MPa, Φ8 gas tube
7.4 Power Consumption: ≤12 kWh max
7.5 Environmental Requirements:
l 7.5.1 Temperature: -5~35°C, Humidity: ≤40%
l 7.5.2 No flammable/explosive gas, liquid, or solids nearby
l 7.5.3 Prohibited to bake flammable, combustible, or explosive materials inside the oven
Contact: Lily You
Phone: +86 18650702009
Tel: +86 18650702009
Email: saleskatbattery@gmail.com
Add: No. 988 Xiahe Road, Siming District, Xiamen City
919121614
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