Hairpin Widening & Twisting Machine

Overview

Performs post-insertion forming of hairpin conductor ends in electric motor stators through three sequential steps: loading, widening, and twisting. The process focuses on precise end positioning to protect downstream weld joint quality. - 8-axis NC-controlled twisting system with independent bending control per conductor layer - Widening parameters set according to stator slot count to align with specific stator designs - NC-controlled architecture accommodates different slot counts and conductor layer configurations without mechanical tooling changes - Layer-specific twist angles enable complex multi-layer winding topologies while maintaining positional accuracy of conductor ends Used in hairpin stator assembly cells for traction electric motor production, particularly in EV manufacturing. Deployed immediately after hairpin insertion and before end-joining operations such as welding, where accurate conductor end positioning is critical for joint integrity. Well-suited for multi-variant production lines and manufacturing R&D environments that run different stator slot counts and conductor layer configurations on the same equipment with rapid recipe-driven changeovers. Buyers commonly align configuration with supported stator diameters, number of conductor layers, minimum and maximum slot count, cycle time per stator, and positional accuracy after twisting.