Hand-Cranked High-Speed Silicon Steel Sheet Semi-Automatic Inserting Machine. Wide EI Sheet Compatibility: Supports EI sheet sizes from EI-28 to EI-360 for various transformer cores. Precision Stacking Mould: Features precise magazine and stacking mould for accurate core assembly. No Power or Air Required: Operates without electricity or air pressure sources for cost efficiency. Flexible Customization: Offers flexible customization including samples, designs, and full customization. Comprehensive 12-Month Warranty: Covers 12 months for defects in design or manufacturing with free parts. Experienced Technical Support: Engineers with years of experience provide training and troubleshooting. Secure Wooden Packaging: Large equipment shipped in custom wooden cases with buffer materials.