SINCE 1889 Yamato Scientific Co.,Ltd.

 ST200/300/500/510 have been discontinued

200 300 500/510
Operating Temperature Range (Sterilization)
105deg.C to 123 deg.C 105deg.C to 128deg.C
Max. Operational Pressure
0.18 MPa 0.2 MPa
Internal capacity
20L 32L 47L
PDF Catalog
  • With an interactive key input system, the conditions are memorized.
    With a single key press, everything is done automatically from air exhausting to sterilization and dry.
  • Setting for hours and continuous operation are available.
  • Possible to sterilize media also.
  • Safety measures are enriched, including self-diagnosis function.

  ST200 ST300 ST500 ST510
System Automatic high pressure steam sterilizer
Temp. setting range: Sterilization 105 to 123deg.C 105 to 128deg.C
Maximum operational pressure 0.18MPa 0.2MPa
Interior Material Stainless steel Stainless steel Stainless steel Stainless steel
Heater 1.3kW 1.7kW 1.7kW 2.0kW
Temp. controller PlD control by micro processor
Temp. setting method Digital setting by UP/DOWN key
Temp display method Digital display by green LED
Timer 1 min. to 99 Hrs. 59 min. and 100 Hrs. to 999 Hrs.
Min. division 1 min. or 1 Hrs.
Safe Device
Safety countermeasures Self diagnosis functions (Sensor, Heater, SSR, Main relay, Low water),
Over pressure safety valve, Electric leakage breaker
Effective internal dimensions(mm) 240(Dia.)×445(Depth) 300(Dia.)×445(Depth) 300(Dia.)×665(Depth) 300(Dia.)×665(Depth)
External dimensions(W×D×Hmm) 410×470×957 440×530×968 440×530×1,088 440×530×1,088
Effective (gross) capacity 20 (22) liters 32 (36) liters 47 (51) liters 47 (51) liters
Power source 50/60Hz 100/220V, single phase,
100/220V, single phase,
100V, single phase,
200/220V, single phase,
Weight Approx. 60 kg Approx. 75 kg Approx. 80 kg Approx. 80 kg
  2 Racks (mesh pitch 8.5 mm), 1 Bottom plate, 1 Steam saucer and 1 Drain bottle.

* The performance shown here is the value under the condition of the ambient temperature of 23deg.C±5deg.C, humidity of 65%RH±20%.

* The projection is not included for Internal dimensions and External dimensions.

Control Panel Outline of Sterilization Process


Steam saucer


Dimensions (Unit:mm)

Optional Items
Description Model No. Product Code
OSM-60Basket (mesh type, 8.5mm) for 200, 205x204 ST Series 241087
OSM-70Basket (mesh type, 8.5mm) for 300, 262x204 ST Series 241088
OSM-80Basket (mesh type, 8.5mm) for 500/510, 262x315 ST Series 241089
OSQ-10Basket (mesh type, 2.5mm) for 200, 189x161 ST Series 241085
OSQ-20Basket (mesh type, 2.5mm) for 300/500/510, 249x203*
(* Settable 2 pcs for SM300 and 3 pcs. For SM500)
ST Series 241086
OSQ-30Basket (mesh type) with stacking fitting for 200, 168x162 (2 pcs./set) ST Series 241093
OSQ-40Basket (mesh type) with stacking fitting for 300, 246x162 (2 pcs./set) ST Series 241092
OSQ-50Basket (mesh type) with stacking fitting for 500/510, 246x162 (3 pcs/set) ST Series 241091
OSQ-60Basket (mesh type) with a mesh shelf for 200, 200x390 (with mesh shelf, 1 pc.) ST Series 241096
OSQ-70Basket (mesh type) with a mesh shelffor 300, 260x390 (with mesh shelf, 1 pc.) ST Series 241095
OSQ-80Basket (mesh type) with a mesh shelf for 500/510, 200x590 (with mesh shelf, 2pcs.) ST Series 241094
OSR-10 Stainless solid basket for 200, 210x200 ST Series 241083
OSR-20 Stainless solid basket for 300/500/510, 270x200 ST Series 241084
OSM-50 Temp. sensor in vessel ST Series 241076