Unisteri

Compact Swing Door Laboratory Autoclaves

Space-constrained laboratories require sterilization equipment that delivers reliable performance without sacrificing valuable floor space. The Unisteri is a compact swing-door laboratory autoclave available in three chamber sizes, engineered for research institutions, universities, and clinical labs that need dependable sterilization of instruments, textiles, rubber goods, liquids, agars, and animal bedding. With options including recessed wall mounting, EN285-compliant air detection, and effluent sterilization cycles, the Unisteri can be configured to match your specific laboratory requirements.

Compact

Available in three chamber sizes with a minimal footprint and recessed wall mounting options, the Unisteri optimizes floor space while delivering high-performance sterilization for demanding day-to-day laboratory use.

Reliable

Built to handle demanding laboratory environments, the Unisteri is constructed with a jacketed stainless steel chamber, equipped with double microprocessor controls and backed by US-based field service, for lasting durability and reliable performance.

Intuitive

The Unisteri is equipped with a large 8.4″ color touch display with an easy to navigate interface and an automatic diagnostic system simplify daily operation and troubleshooting.

Efficient

A closed-loop water recirculation system reduces utility water consumption by up to 75%, and fully insulated chamber and piping minimize energy use without compromising cycle performance.

110°C — 135°C

Sterilization Temperature

20

Programmable Cycles

75%

Utility Water Savings

15 Years

Chamber Warranty

Built for Research

Durable stainless steel construction to withstand the demands of daily laboratory use.

The Unister is built to last with a 316L stainless steel chamber and 316Ti jacket to withstand potentially corrosive loads, such as biological waste, culture media, and byproduct, while stainless steel piping minimizes maintenance requirements, ensuring reliable performance cycle after cycle.

Chamber Construction

The Unisteri chamber is constructed from 316L stainless steel and surrounded by a 316Ti stainless steel jacket. The jacket preheats the chamber prior to sterilization to reduce condensate buildup, aid in drying porous loads, and can optionally circulate cooling water to accelerate cooling of liquid loads. Inside the chamber, steam baffles ensure consistent steam distribution while minimizing condensate wetting of the load. The floor of the chamber is sloped to ensure complete drainage after every cycle.

Hinged Doors

The Unisteri can be configured as a single-door or two-door pass-through model with options for beings hinged on the right or left side of the door(s). The doors are constructed of 316L stainless steel and are equipped with a motor-driven locking system that automatically locks the door upon closing. Two-door units for pass-through operation are interlocked, ensuring only one door can be open at a time to prevent contamination. Whenever the chamber is pressurized, the doors are automatically locked and cannot be unlocked until the chamber returns to atmospheric pressure.

Piping & Valves

All chamber piping is stainless steel for superior corrosion resistance. Piping not in contact with the chamber is made from brass or copper. Valves are pneumatically operated for reliability, with stainless steel sanitary clamp or threaded fitting options available for applications requiring a higher level of hygiene. All piping is fully insulated and color coded for easy identification of hot and cold services.

Optional Built-In Clean Steam Generator

An optional built-in electric clean steam generator with a feedwater booster pump is available for facilities where plant steam is not readily available or where a dedicated clean steam source is preferred. The integrated design eliminates the need for a separate external generator, simplifying installation and reducing the overall facility footprint.

Intelligent Controls. Effortless Operation.

Double microprocessor and modern touchscreen interface for intuitive, reliable control

The Unisteri control system is built around a double microprocessor that independently monitors itself to ensure accurate process data and reliable cycle execution. Twenty programmable cycles with a wide range of configurable parameters give your lab the flexibility to handle any sterilization application, while password protection keeps cycle parameters and calibration settings secure from unauthorized changes. Audible alarms, clear text notifications, and an automatic diagnostic system keep operators informed and in control throughout every cycle.

Double microprocessor control system with each processor independently monitoring the other to ensure accurate, reliable cycles.

20 programmable cycles with password-protected parameters and calibration settings to prevent unauthorized changes.

8.4″ color touchscreen interface with tilted ergonomic screen and 5.7″ unload-side display.

Dual temperature and pressure sensors for precise monitoring and control of chamber conditions throughout every cycle

Automatic startup and shutdown of utilities for simplified, unattended operation

Audible alarms, clear text notifications, and automatic diagnostic system displayed on the operator interface and printed on cycle report.

4.5″ wide printer with digital and graphic cycle printout, SD card, chip card, and RS232 port for data storage and PC connectivity.

21 CFR Part 11 compliant password protection with PC software available for electronic cycle data storage.

Unisteri Sterilization Cycles

Matched to your load type and sterilization requirements to ensure effective steam penetration while protecting the load.

Pre-Vacuum with Drying

Sterilization of porous and dry goods, including wrapped materials, filters, linens, rubber stoppers, and filling line components. Alternating vacuum and steam pulses ensure thorough steam penetration throughout the load, followed by a rapid drying phase that leaves goods dry and ready for immediate use.

Gravity Air Removal

Sterilization of glassware, instruments, waste, and liquids in open or vented containers. Steam displaces air from the chamber by gravity, providing effective sterilization without the mechanical stress of vacuum cycling and protecting container integrity throughout the process.

Gravity Air Removal with Active Cooling

Sterilization of liquids in loose or tightly sealed containers that are heat or pressure sensitive. Following the sterilization exposure phase, cooling water is introduced to the chamber jacket to accelerate cooling while maintaining pressure support, protecting sensitive containers from damage or deformation.

*Custom cycle parameters and recipes are available for specialized load types and process requirements. Contact a BMT USA engineer to discuss your specific sterilization application.

Unisteri Chamber Sizes

*Model numbers ending "-2" indicates two-door pass-through sterilizer configurations.

Model
(-1) single-door , (-2) pass-through

Chamber Volume
cu. ft. (liters)

Internal
Dimensions
w x h x d (mm)

Estimated Overall
Dimensions
w x h x d (mm)

336-1

2.57 (73)

12.5" x 12.5" x 24.6"
320 x 320 x 625 mm

23.6" x 59" x 31.6"
600 x 1500 x 805 mm

336-2

2.57 (73)

12.5" x 12.5" x 24.6"
320 x 320 x 625 mm

23.6" x 59" x 33.8"
600 x 1500 x 805 mm

636-1

5.65 (160)

13.8" x 26.4" x 27.6"
350 x 670 x 700 mm

27.2" x 67.7" x 38"
690 x 1720 x 965 mm

636-2

5.65 (160)

13.8" x 26.4" x 27.6"
350 x 670 x 700 mm

27.2" x 67.7" x 40"
690 x 1720 x 965 mm

669-1

8.97 (254)

20" x 20" x 38"
509 x 509 x 965 mm

33.5" x 67.7" x 49.4"
850 x 1720 x 1255 mm

669-2

8.97 (254)

20" x 20" x 38"
509 x 509 x 965 mm

33.5" x 67.7" x 51.5"
850 x 1720 x 1310 mm

Accessories

Sterilizer Trays

Custom-designed and manufactured in 316L stainless steel to maximize chamber capacity and accommodate vials, ampoules, and other materials requiring specialized handling. Configured to your exact load and finished to your specifications.

Sterilizer Carts

316L stainless steel carts designed for loading materials, containers, and equipment into the sterilizer chamber. Compatible with transfer trolleys for floor-mounted units and pit-mounted configurations. Carts can be custom designed to match your load and workflow.

Transfer Trolleys

Provides a stable, level platform for moving loaded carts to and from the sterilizer. The cart locks securely to the trolley when away from the sterilizer and releases only when the trolley is docked flush with the chamber rails, ensuring smooth, safe transfer every cycle.

5.7" unload side operator interface

Stainless steel fascia paneling

Air compressor for when facility air is unavailable

Stainless steel valves with threaded or tri-clamp fittings

Effluent sterilization cycle and BSL-3 biocontainment seal for autoclaving biohazardous waste

<10 Ra mirror finish chamber

Air detector to meet EN285 requirements

Tell us about your project.

From initial planning to final specification, our team will help you configure the right Unisteri for your facility and provide a detailed quote.