According to the developing trend of clinical histology and the several decades' experience of our factory for manufacturing pathological microtome , yd-1900 cryostat is a special freezing microtome which adopted the newest technology in the world Functional features 1.Mpu (microprocessor) control the temperature and lcd display automatically, and control the function of the section and trimming semi-automatically. 2.Two compressor for freezing .Five freezing place : two freezing tray , freezing specimen holder , freezing box , freezing knife. 3.Beautiful streamline design 4.Specimen retraction function , protects specimen from blade injury. 5.Adopt advance import actuation system for advance of the specimen holder . 6 uv lamp sterilization system and fluorescent lamp for lighting 7 defrost automatically ( set arbitrarily in -1-24 hours ) 8 automatic retraction system for section . 9 automatic retraction system for specimen holder . 10 anti-roll system which made the slice flat . 11 slice the specimen flat , thin , even and continuously. Technical parameter. Temperature of freezing box: -5f¦~-35f¦(fa2f¦) Temperature of freezing tray: -10f¦~-40f¦ Temperature of freezing specimen holder : -5f¦~-40f¦(fa2f¦) Temperature of freezing knife: -5f¦~-25f¦ Range of section thickness Trimming thickness: 1-60um Setting value : from 1-60um 1um increment Maximum sample: 55mm Maximum vertical specimen stroke:59mm Maximum horizontal specimen stroke :28mm via step motor Range of angle adjustment of freezing knife: 0-15fp Specimen orientation on x/y +c axes 8fpand specimen rotation on z +caxes 360fp Dimension: 600f¯640f¯1150mm Weight: 120kg Power : 560w