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MACS Flex-Air Single Sided Mobile Frame Ventilated Caging System


The Modular Animal Caging System (M.A.C.S.) ventilated caging system for rodents adapts to your animal room needs. With MACS, you can:

  • Increase Cage Density
  • Create Space
  • Improve Workflow

The MACS frame holds the vertical cage stacks in place and also the air handling units. There are several framework styles that can be used on this system including the rotary, wall mount and mobile, both single-sided and double-sided. The frame is made from 1″ square stainless steel tubing. Each frame holds the main supply and exhaust plenums. Mobile frames have four autoclavable casters, two with locking brakes.

Change from a mouse IVC rack to a rat, large mouse or hamster IVC system without buying all new equipment. Another advantage of MACS is that it can change as your rodent research needs change. If your demand changes from mice to rats, with the MACS modular IVC you can quickly and easily change from mice to rats without having to purchase all new equipment. Several of the MACS frames have the ability to hold mice, rats or large mice cage stacks. You can intermix stacks on the same frame.

The MACS Mobile Single Sided Frame holds between 40-70 Flex-Air cages. The frame includes upper main supply and exhaust plenums. The plenums are made from 22 gauge stainless steel and are removable for cleaning. This mobile frame sits on 4 rugged 5″ casters with zerks, 2 of which have brakes. One round tube handle on each end within frame for hand protection. The frames and the plenum are both autoclavable. Available in your choice of 3 cage stack heights – 10, 9 or 8 high. 

Features include:

  • Frame made from 304 stainless steel
  • The Single Sided Mobile Frame holds between 40-70 Flex-Air mouse cages
  • Frame includes upper main supply and exhaust plenums
  • Plenums are made from 22 gauge stainless steel and are removable for cleaning
  • Frame sits on 4 rugged 5″ casters with zerks, 2 of which have brakes
  • Frames and the plenum are both autoclavable
  • One round tube handle on each end within frame for hand protection
  • Available in your choice of 3 cage stack heights – 10, 9 or 8 high
Part Number Dimensions W” x D” x H” Dimensions Wcm x Dcm x Hcm Cages Cages Per Stack
MAC-FA-F10S-7 72.45″ x 26″ x 82.56″* 184.0 x 66.0 x 209.7 70 10
MAC-FA-F10S-6 62.87″ x 26″ x 82.56″* 159.7 x 66.0 x 209.7 60 10
MAC-FA-F10S-5 54.2″ x 26″ x 82.56″* 137.7 x 66.0 x 209.7 50 10
MAC-FA-F10S-7-MR 72.45″ x 29″ x 82.56″* 184.0 x 71.1 x 209.7 70 10
MAC-FA-F10S-6-MR 62.87″ x 29″ x 82.56″* 159.7 x 71.1 x 209.7 60 10
MAC-FA-F9S-7 72.45″ x 26″ x 75.5″* 184.0 x 66.0 x 191.77 63 9
MAC-FA-F9S-6 62.87″ x 26″ x 75.5″* 159.7 x 66.0 x 191.77 54 9
MAC-FA-F9S-5 54.2″ x 26″ x 75.5″* 137.7 x 66.0 x 191.77 45 9
MAC-FA-F9S-7-MR 72.45″ x 29″ x 75.5″* 184.0 x 71.1 x 191.77 63 9
MAC-FA-F9S-6-MR 62.87″ x 29″ x 75.5″* 159.7 x 71.1 x 191.77 54 9
MAC-FA-F8S-7 72.45″ x 26″ x 68.5″* 184.0 x 66.0 x 173.99 56 8
MAC-FA-F8S-6 62.87″ x 26″ x 68.5″* 159.7 x 66.0 x 173.99 48 8
MAC-FA-F8S-5 54.2″ x 26″ x 68.5″* 137.7 x 66.0 x 173.99 40 8
MAC-FA-F8S-7-MR 72.45″ x 29″ x 68.5″* 184.0 x 71.1 x 173.99 56 8
MAC-FA-F8S-6-MR 62.87″ x 29″ x 68.5″* 159.7 x 71.1 x 173.99 48 8


All components of the Alternative Design stainless steel product must be cleaned, sanitized and sterilized, where applicable, prior to being put into service. This unit is made primarily of 304 stainless steel. Use care when cleaning to prevent corrosion that can shorten useful life. Cleaning solutions which contain high levels of chlorine are not recommended for stainless steel parts.

Caster Maintenance

Caster used on this equipment was chosen for its suitability in applications where frequent washdowns are necessary. It is also well suited for applications exposed to heat, cleaning agents, steam, caustic solutions or other corrosive agents, which could cause rust and contamination. After washing and/or autoclaving, check casters for proper operation. Check the axle nut to ensure it is still tight (125 inch/pound is recommended). If the axle and/or swivel bearing has to be lubricated, use a high temp grease.

Alternative Design offers a 5-year warranty on all stainless steel fabricated products the company makes. These products are warranted to be free from material and workmanship defects during this period.

The 5-year warranty includes:

* Individually Ventilated Caging (IVC) rack frames and fabricated components
* All other stainless steel fabricated caging systems
* Fabricated material handling, storage and processing equipment made of stainless steel