Natural Convection Dry Sterilizer 99L Overview
The Natural Convection Dry Sterilizer 99L (model SK401) is a programmable dry-heat sterilizer from Yamato Scientific, supplied by LabSupplies.com as an authorized dealer. This autoclave-class unit pairs a 99 L chamber with an ambient +5 to 260°C operating range, giving labs reliable dry-heat processing of glassware, metal instruments, and heat-stable materials.
Construction uses a stainless steel interior chamber for cleanability and corrosion resistance. Exterior panels are chrome-free electrogalvanized carbon steel finished with a chemical-proof baked-on coating. An independent overheat prevention device works alongside the main controller to guard the chamber against runaway temperatures.
Two voltage configurations are offered, 115V and 220V, so the sterilizer matches your facility power. Each unit measures 36 × 36 × 42 in and weighs 195 lbs, requiring a stable bench or floor footprint. Manufactured in Japan, the SK401 is backed by Yamato's ISO 9001:2015 and ISO 14001:2015 certified production.
Key Features
- Programmable control: store up to 99 steps and 99 patterns with repeat operation for reproducible sterilization cycles.
- Independent overheat prevention: a dedicated safety device protects the chamber separately from the primary controller.
- High-precision controller: improved display visibility and operability with calibration off-set, lock function, and power recovery mode.
- Operational monitoring: tracks power-on and operation time accumulation, calendar time, accumulated power consumption, total CO₂ emission, and heat output.
- Operator data management: save and access operator setting information directly from the controller.
- Data collection port: integrated cable port simplifies sample data capture for documentation and validation.
How to Choose the Right Sterilizer / Autoclave
Selecting a dry-heat sterilizer comes down to matching chamber size, temperature capability, control sophistication, and site power to your throughput and validation needs. Use these axes to confirm the SK401 fits your workflow.
- Capacity: a 99 L chamber suits labs processing batches of glassware or instruments; size the chamber to your largest routine load.
- Temperature range: an ambient +5 to 260°C span covers standard dry-heat sterilization and depyrogenation-style protocols requiring sustained high heat.
- Control type: programmable storage of 99 steps and 99 patterns benefits labs running multiple validated recipes versus single-setpoint use.
- Voltage: confirm whether your facility supplies 115V or 220V before ordering, since the model is offered in both.
- Footprint and weight: verify bench or floor space for the 36 × 36 × 42 in cabinet and its 195 lb mass.
- Safety and documentation: an independent overheat prevention device and data cable port support both protection and record-keeping requirements.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 99 L |
| Max Temperature | 260°C |
| Voltage | 115V |
| System | Automatic high-pressure steam sterilizer |
| Operating Temperature Range | 50 to 126°C *1 |
| Max. Operating Pressure | 0.142 MPa (at 126°C) |
| Temperature Control System | PID control by microprocessor |
| Interior Material | Stainless steel (SUS304) |
| Heater | 2000 W stainless steel pipe heater |
| Safety Devices | Water-level detection (liquid-expansion); safety valve (0.165 MPa); safety interlock; spring full-lift safety valve |
| Included Accessories | Stainless steel rack |
| Material | Chrome free electrogalvanized carbon steel, sheet coated w/chemical-proof baked-on finish (exterior) Stainless steel (interior) |
| Country of Origin | Japan |
| GTIN (Barcode) | 797059930845 |
| Shipping Weight | 195 lbs |
| Dimensions (L × W × H) | 36 × 36 × 42 in |
| Component Size | 99 L |
*1 No-load operation of bath only; maximum temperature varies with circumstances and operating conditions.
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| SK-401-115V | 115V | EA |
| SK-401-220V | 220V | EA |
Documentation
More in This Series
- Compact Sterilizer 24L
- Natural Convection Dry Sterilizer 162L
- Compact Sterilizer 30L
- Compact Sterilizer 18L
- Sterilizer With Dryer 20L
- Sterilizer With Dryer 32L
View all Laboratory Autoclaves & Sterilizers →
Why Buy From LabSupplies.com
Order the Yamato SK401 directly from LabSupplies.com and receive a genuine, manufacturer-backed unit shipped from USA inventory. Our lab-equipment specialists answer spec and configuration questions so your purchase is right the first time.
- Authorized Yamato Scientific dealer: genuine equipment with full manufacturer warranty.
- In stock: ready to ship from USA inventory.
- Voltage options on hand: 115V and 220V configurations available.
- Specialist support: dedicated lab-equipment experts for technical and spec questions.
Frequently Asked Questions
What is the temperature range of the SK401 dry sterilizer?
The SK401 operates from ambient +5 up to 260°C maximum. This range supports standard dry-heat sterilization of heat-stable labware and instruments.
What is the chamber capacity and overall size?
The chamber holds 99 L. The cabinet measures 36 × 36 × 42 in (L × W × H) and weighs 195 lbs, so confirm bench or floor space before installation.
Which voltage options are available?
Two configurations are offered: 115V (SK-401-115V) and 220V (SK-401-220V). Both share the same 99 L chamber and 260°C maximum temperature; choose the option matching your facility power.
What materials are used in the chamber construction?
The interior chamber is stainless steel for cleanability and corrosion resistance. Exterior panels are chrome-free electrogalvanized carbon steel with a chemical-proof baked-on finish.
Is the SK401 programmable, and what safety features does it include?
Yes, it stores up to 99 steps and 99 patterns with repeat operation. An independent overheat prevention device protects the chamber separately from the main controller, and a data cable port enables sample data collection.
Where is the SK401 manufactured and is it certified?
It is manufactured in Japan. Production is backed by Yamato's ISO 9001:2015 and ISO 14001:2015 certifications.
