The SAIGER Hopper Dryer SDM-400 is used to pre-dry thermoplastic resins (virgin, regrind or masterbatch) prior to injection molding, extrusion or blow molding to stabilize melt viscosity and improve part quality. It mounts directly above processing machines to deliver continuous, controlled dehumidified drying—helping to minimize moisture-related defects such as splay, porosity and dimensional variation while reducing rework and scrap. Ideal for small-to-mid production lines in automotive, packaging, consumer electronics and medical device manufacturing, the SDM-400 integrates easily into modular or central drying setups to support consistent cycle times and higher yields.