This product is hydraulic cotton press adopting mechanical-electrical-hydraulic integration technology. It is applicable for pressing products such as lint, villi, chemical fibers and linen into bales. Adopting hydraulic cotton processing and automatic sample taking, MDY-400B is provided with program control system and bar code information system. It has matching production functions such as bale discharge, bale receiving, bale pushing, measurement and conveying. Adopting the principle of liner cylinder filling and differential fastness and the structure of double-layer collar box, MDY-200CE is featured with fast packing and high hourly output. Its hourly output is 1.6 times that of ordinary 200 Press.