Conquer Heavy Loads: Spire Integrated Solutions manufactures heavy-duty loading carts for all PRIMUS sterilizer chamber sizes (from 16×16 to 72×86 opening).

Standard sterilizer loading carts may struggle with the weight demands of specific applications. Spire Integrated Solutions offers a robust solution: PRIMUS Heavy-Duty Loading Carts and Transfer Carriages.

Ideal for:

  • Vivariums
  • BioPharma Labs
  • Hospital Sterile Processing
  • Ambulatory Surgery Centers

Accommodating All Sizes of PRIMUS Sterilizers (even pit mounted)

PRIMUS’s heavy-duty carts cater to the entire range of PRIMUS sterilizer chamber sizes, from a compact 16×16 inch opening to a spacious 72×86 inch opening. Additionally, they perfectly integrate with pit-mounted sterilizers for seamless floor-level loading.

Built to Last:

Engineered for exceptional durability, these carts feature:

  • Reinforced Construction: Heavy-gauge metal and sturdy welds withstand significant weight.
  • High-Capacity Design: Supports even the most demanding loads with confidence.
  • 316L Stainless Steel (Optional): Provides superior corrosion resistance for extended service life.

Optimize Your Sterilization Workflow:

  • Improved Ergonomics: Reduce operator strain with effortless handling of heavy materials.
  • Enhanced Safety: Minimize the risk of injury with a robust and stable design.
  • Increased Efficiency: Streamline your sterilization process with a heavy-duty solution.

Standard Loading Carts and Transfer Carriages

PRIMUS offers loading carts and transfer carriages for steam sterilizers in chamber sizes 9 cubic feet and above.


  • Reinforcements and heavier gauge metal
  • Supports heavier liquids loads
  • Available for all standard-size sterilizers from 16×16 up to 72×86
  • Materials are all stainless steel angle and square tubing with welded joints and connections that are ground and electropolished.
  • Transfer carriages include 4 pin-mounted swivel casters with swivel locks and 5″ diameter wheels with wheel brakes.
  • Floor carts have 4 high-temperature sterilizable wheels for long-life performance.


  • Effortless Transport: The wheeled transfer carriage seamlessly moves loaded assemblies from the prep area to the sterilizer. Its companion loading cart then delivers the load directly into the chamber for sterilization.
  • Durable Construction: Standard transfer carriages feature a welded 304 stainless steel frame (optional 316L available). Each carriage boasts four swivel casters with locks, ensuring smooth maneuvering. High-temperature, non-marking wheels (5″) with brakes provide stability and longevity. Standard configurations include one bottom shelf and one adjustable shelf, with additional shelving options.
  • Versatile Loading Solutions: All loading carts feature adjustable shelves for customized configurations. Standard equipment includes one bottom and one intermediate shelf, with the option to add more.
  • Welded seams are ground and electropolished for a smooth, clean finish.
  • Enhanced Support for Deeper Chambers: For chamber depths up to 49 inches, loading cart shelves have secure end supports. Deeper chambers (up to 67 inches) benefit from side-supported shelves with additional center support to minimize shelf bending.

PRIMUS Two Half Carts for Sterilizers 60″ Deep or Longer | Loading and Transfer Carriages

All sterilizer chambers 60″ deep or longer use one set of two Half Carts for ease of loading and unloading the sterilizer.

How to Use the PRIMUS Loading Cart and Transfer Carriage

PRIMUS Loading Carts and Transfer Carriages work together to optimize steam sterilization workflows. Here’s a step-by-step breakdown:

Single Door

  • Load with Ease: The operator positions materials for sterilization onto the loading cart.
  • Effortless Transport: The loaded cart is then wheeled on the transfer carriage to the sterilizer.
  • Precise Positioning: With the sterilizer door open, the transfer carriage is aligned for seamless entry into the chamber.
  • Secure Transfer: Wheel locks on the transfer carriage are engaged for stability.
  • Loading Complete: The loading cart is unlocked from the transfer carriage and smoothly pushed into the chamber.
  • Sterilization Cycle: Once the loading cart is securely positioned, the transfer carriage is withdrawn, and the sterilizer door is closed to initiate the sterilization process.

Double Door

For PRIMUS sterilizers with double-door configurations, the process is even more efficient:

  • The loading cart may be retrieved from the opposite door, eliminating the need to move the transfer carriage again.
  • Consequently, double-door sterilizers typically require one loading cart and two transfer carriages for optimal workflow.


  • Enhanced Workflow: PRIMUS’s system simplifies loading, transport, and unloading, saving valuable time.
  • Improved Safety: The transfer carriage ensures smooth movement and reduces the risk of injury.
  • Optimized for Space: Double-door compatibility maximizes efficiency in double-door sterilizer setups.

PRIMUS Floor Carts | Floor-Level Access for Pit-Mounted Bulk Sterilizers


  • 4 non-marking high-temperature sterilizable wheels.
  • Carts glide easily into position.
  • Rub rails prevent the cart from contacting the chamber sides.
  • Optional side and end rails for floor carts are offered to support loose packaged items loaded onto a shelf.
  • Optional load support bar slides along the side rails allowing loose items to be stacked on a shelf without falling over.
  • Direct Loading: Materials are conveniently loaded directly onto the spacious floor cart within the facility.
  • Effortless Transport: The loaded cart is then effortlessly wheeled to the sterilizer.
  • Seamless Integration: The entire floor cart, with its contents, is placed directly into the sterilization chamber.

PRIMUS floor carts offer a streamlined solution for facilities utilizing pit-mounted bulk sterilizers, commonly found in Vivarium applications.

Advantage: Floor-Level Access

  • PRIMUS floor carts eliminate the need for lifting or transferring materials, simplifying the sterilization process.


  • Enhanced Ergonomics
  • Improved Efficiency
  • Ideal for Vivarium Needs

Questions about the right cart for your PRIMUS Sterilizer?

Talk to Dave Schall, our PRIMUS sterilizer expert, here to assist you at 877.679.7800 x1212 or email at

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