Vessel: Total volume: 50L, load coefficient is 70%. Stainless steel(316L)vessel with wide sightglass. The design pressure: P(inside)= 0.3Mpa, P(interlayer)=0.3Mpa, The polishing precision: Ra0.4~0.6,the ratio between diameter and height: 1:2.56. Stirrer: Drive with AC motor, speedadjustable. Direct-coupled mechanical drive from top, with mechanicalsealing Solidstirrer shaft with 2 pieces of 6-blade disk impellerand 1 set of foam breaker. Rotate speed range: 100-1000rpm. Aeration: Manualcontrol ventilatory capacity, the precision of nhaler : 0.02μm, displayed by rotameter. Thermal circuit: Heatby thermostatic water tank and circulate by circulating pump(Grundfos, Denmark),autocontrol (cooling water+5℃)~50℃±0.2℃. pH: 2.00-12.00±0.05pH, autocontrol by addingacid and alkali. DO: 0-150±3%displaying precision 0.1%. Feeding: with peristaltic pump. Antifoam: Auto-detected and adding anti-foamby peristaltic pump. Pressure: Manual control exhaust by diaphragmvalve, and displayed by pressure gauge. Sterilization: In situ with external steam. Control system: Various controller forchoose. Details: BIOTECH-7000, BIOTECH-9000