TOMY SX-Series Laboratory Autoclaves
Large-capacity steam sterilization in a compact footprint
Simple installation with no plumbing required. The autoclaves used in research labs worldwide.
TOMY SX-Series laboratory autoclaves provide reliable steam sterilization for research, pharmaceutical, biotechnology, food, and quality control laboratories.
Internal chamber
Ø 31.5 × 63.8 H cm
Compact footprint
41.0 W × 47.7 D cm
Power
100–120 V, 17 A
Installation
No plumbing required
Internal chamber
Ø 36.0 × 67.5 H cm
Compact footprint
47.0 W × 52.8 D cm
Power
207–253 V, 13 A
Installation
No plumbing required
SX-500U (50 L) Vertical Autoclave
SX-700U (69 L) Vertical Autoclave
Common laboratory autoclave challenges — solved
Before TOMY
With TOMY
Why choose TOMY laboratory autoclaves?
STEP 1
Load baskets or tall vessels
Designed to accommodate
glassware, culture media, bottles, and tall containers.
STEP 2
Select a saved program
Programs can be set,
saved, and reused for
consistent results.
STEP 3
Run the cycle
The system runs automatically
with consistent control.
STEP 4
Cool down & unload
Efficient cooling
reduces turnaround
time between runs.
Faster cooling between cycles
SX series autoclaves are standard-equipped with a dual-fan cooling system that helps shorten overall cycle time.
On the SX-700, cooling time can be reduced by up to 28 minutes compared with non-fan operation under the referenced test conditions.
- Standard dual-fan cooling system
- Faster cooldown after sterilization
- Up to 28 min shorter cooling time (SX-700)
- Helps reduce overall operation time
* Example for SX-700. Time required for chamber temperature to fall from 121 °C to 60 °C under specified test conditions. Actual cooling time varies depending on load and environment.
See the SX-Series in Action
A quick overview of daily operation — from loading to completed cycle.
Minimal training required
Predictable daily operation
Built for shared lab environments
Trusted in research and production Labs
Long-term trust
I’ve had a Tomy autoclave for +20 years and practically worship the thing. Every lab I’ve ever worked in has either had one already, or I’ve recommended one to purchase ASAP.
Space + reliability
TOMY autoclaves are quiet, compact, and offer impressive capacity for their size. Features such as the foot pedal and programmable cycles make daily use easy.
Ease of training
We’ve used the TOMY autoclave for over a year with consistent results. The small footprint is a huge advantage, and the ease of use makes training new users simple with virtually no user error.
CASE STUDY
Real-World Results with TOMY Autoclaves
Optimizing Yeast Production for Breweries with Sterile Practices
See how a production lab improved throughput and confidence in sterilization by choosing a compact TOMY autoclave, without added complexity.
Laboratory autoclave specifications
Compare specifications, download the brochure, or get help choosing the right setup for your lab.
Specifications
| SX-500U | SX-700U | ||
|---|---|---|---|
| Operating conditions | |||
| Temperature – sterilizing | 105–135 °C (0.019–0.212 MPa) | 105–135 °C (0.019–0.212 MPa) | |
| Temperature – heating | 45–104 °C (0–0.015 MPa) | 45–104 °C (0–0.015 MPa) | |
| Temperature – warming | 45–95 °C | 45–95 °C | |
| Maximum operating pressure | 0.263 MPa | 0.263 MPa | |
| Power & electrical | |||
| Heat source | 2.0 kW electric heater | 3.0 kW electric heater | |
| Required power supply | AC 100–120 V, 17A | AC 207–253 V, 13A | |
| Plug type | NEMA-5-20P | NEMA-6-15P | |
| Power consumption | 2.0 kW (1720 cal/h) | 3.0 kW (2580 cal/h) | |
| Power cord length | Approx. 9 ft (2.7 m) | Approx. 9 ft (2.7 m) | |
| Control & display | |||
| Temperature display | Digital | Digital | |
| Pressure gauge | Analog (0–0.4 MPa) | Analog (0–0.4 MPa) | |
| Time display | Digital (sterilizing/heating/warming) | Digital (sterilizing/heating/warming) | |
| Dimensions & installation | |||
| Maximum external dimensions | 41.0 W × 47.7 D × 101.2 H cm | 47.0 W × 52.8 D × 105.1 H cm | |
| Internal chamber dimensions | Ø31.5 × 63.8 cm (50 L) | Ø36.0 × 67.5 cm (69 L) | |
| Rear clearance (open lid) | 20 cm | 20 cm | |
| Weight | 60 kg | 72 kg | |
| Installation | No plumbing required | No plumbing required | |
| Environmental conditions | |||
| Ambient temperature | 10–35 °C | 10–35 °C | |
| Pressure | 860–1060 hPa | 860–1060 hPa | |
| Relative humidity | 30–85% RH | 30–85% RH | |
| Maximum gradient | 2 | 2 | |
| Included accessories | |||
| Stainless steel baskets | Ø30.0 × 18.2 H cm (×2) | Ø34.5 × 18.1 H cm (×2) | |
| Other included items | Bottom plate, caster stoppers, manuals, warranty cards | Bottom plate, caster stoppers, manuals, warranty cards | |
For research use only
For research use only
Planning for a new autoclave?
Use our laboratory autoclave planning checklist to review load size, capacity, installation requirements, utilities, and workflow before comparing equipment.
Autoclave resources
Practical resources covering autoclave selection, operation, and maintenance.
Lab autoclave accessories
Recent autoclave articles
Lab Layouts in Motion: 5 Benefits of Mobile Floor-Standing Autoclaves
Lab layouts are constantly evolving. Discover how mobile floor-standing autoclaves improve flexibility, reduce installation constraints, and support efficient sterilization workflows.
Why a Biological Indicator (BI) Test Can Fail Even When the Autoclave Cycle Completed
If your autoclave cycle finishes normally but your BI test comes back positive, the cause is often not a malfunction. In many lab sterilization scenarios, the issue is heat transfer time lag—when the chamber reaches the set temperature before the load does. What the autoclave measures (and what it doesn’t) During operation, the autoclave’s temperature […]
Signs Your Lab Has Outgrown Its Autoclave (And What to Do Next)
In many labs, an autoclave doesn’t suddenly fail. Instead, it slowly becomes the bottleneck. As research programs expand, staff increases, and protocols diversify, the demands placed on sterilization equipment often grow faster than the equipment itself. What once worked smoothly for a small team can quietly turn into daily scheduling conflicts, delayed experiments, and inefficient […]
Lab Autoclave FAQ
Q: Can I sterilize liquids?
Yes.
TOMY SX-Series autoclaves are designed to sterilize liquids, culture media, and aqueous solutions using dedicated liquid sterilization cycles.
The system controls heat-up and exhaust rates to help prevent boil-over and reduce sample loss. Users can also adjust cycle parameters depending on container size and volume.
For research use only. Always validate cycle parameters for your specific application.
Q: Does this require plumbing?
No plumbing required.
SX-Series autoclaves are self-contained and operate using a built-in water reservoir system. They do not require hard plumbing connections or dedicated steam lines.
This makes installation simple:
Standard electrical connection
Fill the reservoir
Connect to a drain container
They are ideal for labs without central steam access.
Q: How long does a typical cycle take?
Cycle time depends on:
- Load type (liquid vs. solid)
- Volume
- Temperature setting (e.g., 121°C vs 134°C)
- Container size and density
Typical cycle times vary depending on the load and settings, so the best estimate depends on your application. Contact us if you would like help selecting the right cycle for your workflow.
Q: Can it be used at high altitude?
Yes — with the correct model.
TOMY offers high-altitude configurations (such as the SX-700U high-altitude version) designed to compensate for lower atmospheric pressure at elevated locations.
If your lab is located above approximately 2,000 ft (600 m), we recommend confirming altitude with our team so we can recommend the correct configuration.