Lithium Ion Battery Production Line Three Layer Vacuum Drying Oven for Electrode Drying. Three-Layer Independent Operation: Three studios work independently with separate heating and temperature control systems. High Vacuum Performance: Vacuum level reaches 100Pa with 98% retention after 12 hours and 95% after 24 hours. Flexible Nitrogen Injection: Vacuum chamber allows individual nitrogen addition without disturbing other chambers. Customizable Color Standard: Working room color can be customized according to customer's specific color standard. Turnkey Project Solution: We supply full set of lithium battery materials, equipment, and technology design services. Durable Stainless Steel Material: Working room constructed with SUS304 stainless steel plate for high corrosion resistance. Safety Protection Features: Includes over-temperature protection, pressure protection, and alarm buzzer system.