After several years of intensive work, Mr. Chuang eventually produced a machine which is faster, processing up to 110 pieces a minute, only one thirteenth the size of the imported models, and only requires a three-quarters of a horsepower engine to operate. The waste rate is also low, with 82 kilograms of peeled asparagus obtained from 100 kilograms of the raw material.
莊武鎮發明的削皮機和外國製品大不相同，不但速度快（每分鐘可削 110 枝），體積小（較外國製品小了三、四倍），而且只要 3/4 匹馬力就能運作，操作簡便省力，損耗率也低（每 100 公斤蘆筍可以削出 82 公斤成品）。