Factory Price of Silicon Steel Sheet Transformer Core Stacker. High Daily Output: EI inserts: 800~1500 pieces, E inserts: 2500~3500 pieces. Imported Japanese Materials: Internal parts made of imported Japanese steel with special treatment for durability. Wide Model Range: Models EI-28 to EI-192 available, covering various transformer sizes. Customizable Specifications: Different insert types and specifications can be customized based on customer needs. High Efficiency Speed: Film feeding speed not less than 120 groups per minute. Comprehensive Warranty: 1 year free warranty, 2-3 years cost price, plus lifetime free technical support. 24/7 Technical Support: Engineers available via email or phone with 24-hour response time. Free Training & Manuals: Free English user manuals, operating videos, and training included.