In 1976 Li came out in rapid succession with his third generation machine, which worked at the rate of 750 nuts per minute, followed by the fourth generation, which spewed out nuts at the incredible speed of 1,000 per minute.
同時，「喜歡跟自己過不去」的李淵河又陸續推出第三代每分鐘生產七百五十粒、第四代每分鐘生產一千粒螺帽的機器。