3 Layers Single Side Energy Saving Type Touch Screen Vacuum Oven

 

Series: Standard Vacuum Oven Series

Applicable Products: Batteries, battery cells, electrode sheets

Internal Dimensions: 35(H) × 85(W) × 80(D) cm × 3 layers

External Dimensions: 200(H) × 127(W) × 115(D) cm

 

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 operate continuously in cycles. Basic process: open the door to put battery cells or electrode sheets into the oven, then set the timing for heating, vacuum, and nitrogen. The system automatically performs heating and timed ventilation according to preset parameters to finish the baking process.

 

3. Configuration

3.1. Inner Chamber: Constructed with 3.0 mm stainless steel, reinforced with iron square tubing.

3.2. Frame: Made of 1.5 mm high-quality cold-rolled plate; featuring double-layer insulation with 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: Includes PLC, touchscreen, pressure sensor, high-vacuum baffle valve, solid-state relays, temperature controller, and solenoid valve group.

3.5. Hardware: Consists of 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 temperature and corrosion.

4.3. Working Principle: Surrounding hot air external circulation. Double insulation keeps the outer temperature within +20°C of the ambient.

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

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

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

4.7. Multi-level Overtemperature Protection: Effectively prevents temperature runaway and improves protection accuracy.

4.8. Touchscreen Central Operation: Easy and reliable to operate. PLC program control ensures stable performance.

4.9. Independent Layer Control: Each layer can set total baking time, cycle time, vacuum time, and drying time. After parameter setting, pressing the auto button starts the baking cycle. Automatic shutdown occurs upon completion of baking. An over-temperature alarm is triggered with a red light and message display.

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

4.11. Fault Alarms: On-screen fault alerts and cause descriptions during normal operation.

4.12. Vacuum Pipe: Corrosion-resistant.

4.13. Program Interlock: Prevents cross-contamination between 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 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