The company after three years of research and development, testing, improving finally successfully developed a new generation of brushless dc weft feeder, the start method by high frequency injection location start, the start acceleration, stability, reliability is relative to the market generally have higher position hall started a lot, its biggest characteristic is through the complexity of SCM operation, installation without hall, so the failure rate is reduced greatly. Energy saving effect and compare the communication weft feeder can reach more than 25%, obviously improve the efficiency.