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Safety Sterilization with Individual Over-heat Prevention Function.
Natural Convection Type: SK401 & 601.
Forced Convection Type: SK801 & 811.

401 601 801/811
Operating temp. range
Room temp. +5deg.C to 260 deg.C Room temp. +10deg.C to 210 deg.C
Temp. distribution accuracy
±5deg.C (at260deg.C) ±3.5deg.C (at210deg.C)
Internal capacity
99L 162L 300L

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  • Various function such as calibration offset, power failure recovery mode, user configuration information are standard equipped.
  • Loaded with the excellent safety functions such as Self-diagnosis Function and Individual Over-heat Prevention Function.
  • Integration function of energization and operation time are equipped.
  • Maximum 99 steps, 99 patterns, program repeat function are available
  • Data acquisition is simple due to cable port

Model SK401 SK601 SK801/811
Circulation method Natural Convection Forced Convection
Operating temperature range Room temp. +5 to 260deg.C Room temp. +10 to 210deg.C
Temp. adjustment accuracy ±1.0deg.C (at 260deg.C) ±1.0deg.C(at 210deg.C)
Temp. fluctuation ±1.5deg.C (at 260deg.C) ±1.0deg.C(at 210deg.C)
Temp. distribution accuracy ±5deg.C(at 260deg.C) ±3.5deg.C(at 210deg.C)
Temp. gradient 20deg.C (at 260deg.C) 12deg.C (at 210deg.C)
Max. temp. reaching time Approx. 60 mins.
Interior material Stainless steel
Exterior material Cold rolled steel plate with melamine resin baking finish
Heat insulation material Glass wool
Heater SUS pipe heater
1.2 kW 1.36 kW 2.4 kW
Sensor K-thermocouple
Fan type - Sirocco Fan/ Condenser Motor 30W
Cable Hole I.D. 33mm ( right side)
Exhaust port 33 mm dia.×2 pcs.(the top) 33 mm dia.×2 pcs.(back side)
Temp. controller PlD control by microprocessor
Temp. display Measurement temp. : Digital display by green LED
Setting temp. : Digital display by red LED
Timer 0 min. to 99 Hrs. 59 min. and 100 Hrs. to 999 Hrs.
Operation function Fixed Temp. Operation, Automatic Start, Automatic Stop, Program Operation , Quick automatic stop
Program mode 99 steps, 99 patterns, Program repeat function
Additional function Integration of energization/Operation time, calendar time, calibration offset, power discharge, CO2 discharge, heater output operation monitor display, power failure recovery mode, user configuration information
Sensor circuit control Triac zero cross method
Safe Device
Safety countermeasures Self diagnosis functions (temp. sensor abnormal, Heater disconnection, Triac Short-circuit, main relay failure detection, Automatic overheating prevention),, Key lock function, Electric leakage breaker
Internal dimensions (W×D×Hmm) 450×490×450 600×540×500 600×500×1,000
External dimensions(W×D×Hmm) 560×600×820 710×650×870 710×650×1,640
Internal capacity 99 liters 162 liters 300 liters
Shelf plate with standard load Approx. 15 kg/pc
Shelf rest step number 11 steps 13 steps 29 steps
Shelf rest pitch 30 mm
Power source 50/60Hz 100V 12.5 (15A) 100V 14.1A (20A) 100V 24.5A (30A) (SK801)
Single phase 200V 12.5A (15A) (SK811)
Weight Approx. 50 kg Approx. 62 kg Approx. 108 kg
Shelf plate Stainless Punching Metal, 2 pcs. Stainless Punching Metal, 4 pcs.
Shelf bracket 4 pcs. 8 pcs.

* 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.

SK811 Exterior Control Panel

Cable Hole (Standard) Shelf and Support

Dimensions (Unit:mm)

Optional Items
Remark Description Model No. Product Code
Stand ON61 (for 401/601) SK Series 211856
Stand OT42 (for 401) SK Series 212348
Stand OT62 (for 601) SK Series 212349
  Stacking support for SK401 OD40 SK Series 212822
  Stacking support for SK601 OD60 SK Series 212823
  Shelf (with support 2pcs.) for 401 SK Series 212246
  Shelf (with support 2pcs.) for 601/801/811 SK Series 212266
Cable hole I.D 25mm ODK32   281121
Cable hole I.D 50mm ODK34   281122
  External communication adapter set OIN90   211880
External Communication Terminal SK Series 212981
Temperature Output Terminal  SK Series 212982
External alarm output Terminal  SK Series 212983
Time-up Output Terminal SK Series 212984
Operation signal output terminal SK Series 212985
Event output terminal SK Series 212986
1. The item marked " ● " in the column of "Remark" shall be ordered together with the main unit.
2. The transportation cost will not be required if the order is together with main unit except the item marked "○".
In case you order the item marked "○" together with the main unit, please ask Yamato to obtain the correct transportation cost.
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