PRIMUS Brand Steam Sterilizers | The Workhorse of the Vivarium & Made In The USA.




- Small, Medium, and Large size configurations
- Designed and manufactured in the USA
- Reliable and simple to operate
- Easy to service and maintain
- User-friendly operation
- Finished floor loading
- Barrier installations
- Remote diagnostics
- Local data logging
- Reduced cost of ownership
Applications
- Cages
- Bedding
- Feeding bowls
- Water bottles
- Enrichment items
- Animal waste
- Material handling equipment

Small steam sterilizers

Choice of 5 small chamber sizes
- Single or double-door
- Loading equipment available
- Several options to choose from
Dimensions | Inches (W x H x L)
| Model | AA | A | B | C | D |
|---|---|---|---|---|---|
| Chamber size | 16 x 16 x 26 | 20 x 20 x 38 | 26 x 26 x 39 | 26 x 26 x 49 | 26 x 26 x 67 |
| FEATURES | OPTIONS |
|---|---|
| Vertical, horizontal, and hinged doors. | PRI-Pure™ reverse osmosis water system |
| Clear service access for maximum uptime. | 90% Water Savings | PRI-SAVER™ Water Conservation System |
| Easy-to-use controller. | House steam or electric steam generator |
| PRI-MATIC 100 PLC Control Platform with a color touch-screen control panel and remote monitoring and diagnostic capabilities. | Clean steam to a single-threaded tube. |
| Preprogrammed cycles with custom cycle development options. | Allen-Bradley PRI-Matic 200, CompactLogix™ |
| Energy-efficient vertical sliding doors in single- or double-door configurations. | Thermal or impact printer |
| Choice of stand-alone or integral (option) electric steam boiler. | Ethernet printing |
| Freestanding, recessed, or cabinet mounting placement. | Effluent decontamination configuration |
| Choice of stand-alone or integral (option) electric steam boiler. | Bio seal flange with application-specific wall attachments. |
| Pri-Mirror™ chamber and door finish – the most brilliant autoclave surface on the planet! | Extendable bottom shelf |
| Additional chamber shelf | |
| Loading cart | |
| Transfer carriage | |
| Compressed air to the gasket | |
| Pneumatic valves | |
| Stainless steel threaded piping with brass valves | |
| Liquid-ring electric vacuum pump | |
| Chamber condensate alarm | |
| Automatic vacuum leak rate test | |
| Clean steam to a single-threaded tube. |
Medium steam sterilizers
Choice of 6 medium chamber sizes
- Single or double-door
- Loading equipment available
- Several options to choose from

Dimensions | Inches (W x H x L)
| Model | E | F | G | G1 | H | I |
|---|---|---|---|---|---|---|
| Chamber Size | 26 x 36 x 39 | 26 x 36 x 48 | 26 x 36 x 60 | 32 x 36 x 48 | 36 x 42 x 60 | 36 x 42 x 84 |
Features
- Clear service access for maximum uptime.
- Simple operation
- PRI-MATIC 100 PLC Control Platform with a color touch-screen control panel and remote monitoring and diagnostic capabilities.
- Preprogrammed cycles with custom cycle development options.
- Energy-efficient vertical sliding doors in single- or double-door configurations.
- Choice of stand-alone or integral (option) electric steam boiler.
- Freestanding, recessed, or cabinet mounting placement
- Choice of stand-alone or integral (option) electric steam boiler.
- Pri-Mirror™ chamber and door finish – the most brilliant autoclave surface on the planet!
- Vertical, horizontal, and hinged doors
Options
- 90% Water Savings | PRI-SAVER™ Water Conservation System
- PRI-Pure™ reverse osmosis water system
- House steam or electric steam generator
- Clean steam to a single tube, threaded
- Allen-Bradley PRI-Matic 200, CompactLogix™
- Thermal or impact printer
- Ethernet printing
- Effluent decontamination configuration
- Bio seal flange with application-specific wall attachments
- Extendable bottom shelf
- Additional chamber shelf
- Loading cart
- Transfer carriage
- Compressed air to the gasket
- Pneumatic valves
- Stainless steel threaded piping with brass valves
- Liquid-ring electric vacuum pump
- Chamber condensate alarm
- Automatic vacuum leak rate test
- Documentation: IQ/OQ Protocol

Large Steam Sterilizers
Choice of 8 Chamber Sizes

Dimensions | Inches (W x H x L)
| Model | J | K | L | M | N | O | P | O |
|---|---|---|---|---|---|---|---|---|
| Chamber Size W x H x L | 26 x 63 x 48 | 26 x 63 x 76 | 35 x 57 x 48 | 35 x 57 x 60 | 35 x 57 x 86 | 35 x 57 x 60 | 35 x 57 x 86 | 61 x 86 x 86 |
| Chamber Capacity | 46 ft3 | 72 ft3 | 55 ft3 | 69 ft3 | 99 ft3 | 139 ft3 | 210 ft3 | 261 ft3 |
Features
- Fully-jacketed Vessel Design.
- Cutting-edge and configurable PLC, the PRIMUS brand PRIMatic series is a PLC-based control platform designed to exceed the needs of any general-purpose, research laboratory, containment, or vivarium application. These platforms feature industry-leading, non-proprietary components and pharmaceutical-grade coding.
- 316L Stainless Steel Chamber. The vessel is insulated and mounted on a steel frame with adjustable feet on self-centering floor pads.
- Horizontally Sliding Doors are energy-efficient, safe, and operated by simple touchscreen activation.
- Rectangular chamber eliminates wasted space and reduces high utility costs common to cylindrical or elliptical designs.
- Polished Chambers to a mirror finish of <10 Ra. Surface finish can be just as critical in determining the corrosion resistance of austenitic stainless steel as the grade. Poor quality finishes can lead to disappointing performance of stainless steel. A highly polished surface will give the best performance in any specified environment.
- Non-Proprietary Parts are a hallmark of PRIMUS Steam Sterilizers, allowing for immediate diagnostic and replacement of worn components.
- Gravity, Vacuum, and Liquid Cycles: Low-temperature cycles and effluent decontamination are available for specific applications.
- Configurable Controls are adaptable to meet a variety of applications.
- Water Conservation Module is PRI-Saver® TRVPS system that offers up to 90% water savings.
- Predictive Maintenance Functionality included in our PLC-based controls allows for increased uptime through the proactive monitoring of critical components.
- Ease of Service is built into the design and delivered by PRIMUS Authorized Service Agents.
Options
- Stainless Steel Piping to Chamber delivers steam generated from a clean steam source to the chamber and its contents.
- Stainless Steel Clean Steam Generator automatically produces clean steam using customer-supplied steam and purified water.
- RTD Load Probes and F° Sterilization automatically sense the load temperature during cycle operation.
- Bioseals | Air-Differential Seal (double door units only)
- Back Cabinet Panel is provided on single-door,
freestanding units where the unit is accessible on all sides. - Power Door (Not available for sterilizers with
BioSeal option). - Vacuum Pump Upgrade
- 0.2 Micron Bacterial Retentive Filter
- Additional Chamber Penetration: capped chamber
penetration port is located at the side of the vessel
preventing interference with other piping. The port
provides for thermocouple probes or other test
instrumentation. - Form C Dry Contacts
- Piping Options
- Air Compressor (Portable)
- Seismic tie-down kit
PRI-MATIC 100 Controller
Equipped with 30 pre-programmed cycles, encompassing options for sterilization.
- Predictive maintenance
- Wireless remote monitoring
- Data handling / downloading capability
- Server diagnostic mode
- and more

2026 INTERACTIVE Vivarium Equipment Catalog is available here!



Spire Integrated Solutions manufactures the PRIMUS brand of Vivarium autoclaves. MADE IN USA.