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Rat Cage – Optirat® Plus

Our Largest, Multi-Level Rack System for Rats

Optirat Plus IVC rack system provides multi-level housing for rats and other large rodents. This spacious rodent cage allows the housing of larger groups and fewer single animals. The wide interior enables additional intra-cage enrichment like shelters and allows rats to express natural behaviors, as well as to stand upright, enhancing well-being. The mezzanine increases floor space and adds complexity to the cage environment.

Optirat Plus combines our proven motor-free, exhaust-ventilated technology and high-density carousel design with improved ease of use and maintenance. The feeder is located near the rear of the cage for improved visibility of animals, and the water bottles are externally located to allow changing without opening cages.

  • Large, multi-level cages; increased height and floor space
  • Mezzanine adds complexity and more living space
  • Ultra-high density
  • Large enough to house rats, hamsters, gerbils, guinea pigs, deer mice, and wild-caught rodents
  • Also suitable for invertebrates
  • External water bottles
  • Integrated cage card holder
  • Flat-bottom cage bases
  • Fits through standard 36″ door with cages removed
  • Optional automatic watering options
  • Extra cage height and special accessories optimize housing for rats with implants
  • Many components are available to support specialized models

Same operating principles as all Animal Care Systems racks

  • One-­pass, low-­velocity airflow with total volume air changes
  • No electric motors, no energy consumption
  • No noise or vibration
  • Prevents release of odors and allergens in the animal room
  • Superior cage visibility
  • Fast and easy cage filter replacement
  • Easy and low cost to maintain
Included Caging
Houses 30 rat cage assemblies with filters, feeders, cage cards, and water bottles (if so configured); available in polycarbonate and amber polysulfone
Rack Dimensions with Cages
41.0 in. (1042 mm) L x 39.7 in. (991 mm) W x 78.0 in. (1981 mm) H
Rack Only Dimensions
39.7 in. (1009 mm) L x 33.7 in. (856 mm) W x 78.0 in. (1981 mm) H
Airflow Requirements per Rack
82 CFM (39 liters/sec) recommended, 55 CFM (26 liters/sec) minimum per rack
Rack Weight
505 lbs (229 kg) with cages; 500 lbs (227 kg) with autowater
Rack Casters
Four 4-inch swivel casters; two locking, two non-locking
Cage Outside Dimensions
15.3 in. (389 mm) L x 22.4 in. (569 mm) W x 10.3 in. (262 mm) H
Cage Floor Area
183 square inches (1181 sq cm); 244 square inches (1574 sq cm) with mezzanine
Cage Capacity
Without mezzanine: 2 rats 500 g or heavier; 3 rats 400-500 g; 4 rats 300-400 g; 6 rats 300-200 g; 8 rats 100-200 g With mezzanine: 3 rats 500 g or heavier; 4 rats 400-500 g; 6 rats 300-400 g; 8 rats 300-200 g; 10 rats 100-200 g
Cage Material
Amber polysulfone or polycarbonate
Cage Feeder
Capacity: 37 oz (1,100 mL); polished stainless steel
Cage Water Bottle
Capacity: 16.9 oz (500 mL); polysulfone or polycarbonate
Cage Enrichment
Optional mezzanine that adds 61 in²


CryoMajor Series, with Canisters

CryoMajor Series liquid nitrogen containers are economical small and medium size liquid nitrogen containers for long term static state storage. CryoMajor Series include two types, large capacity and long shelf life. CryoMajor Series are made of high strength and light-weight aluminum alloy. There is multilayer superior performance thermal insulation inside. Various accessories are optional. Mainly apply to animal husbandry and laboratories.

Mouse IVC Cage Optimice®

Highest Mouse IVC Cage Density in the Industry The Optimice IVC rack system is based on our patented direct exhaust ventilation technology, free from motors, noise, and vibration. This original technology creates a low-stress, non-variable environment, ideal for housing and breeding research mice and delicate strains. Our carousel design features an exceptionally small footprint and ultra-high rodent cage density, the highest in the industry. Animals are fully protected in Optimice cages, and odors and allergens are contained. This most unique mouse rack is trusted by scientists, veterinarians, managers, and technicians worldwide for its proven ability to optimize research while protecting caretakers and providing an ideal microenvironment for the mice.

Anesthesia Induction Chambers

Anesthesia induction chambers are applied to inhalation anesthesia. For rapid induction of anesthesia before animal surgery, takes only 2-5 minutes; Animal status can be observed in real time during anesthesia

Photoperiod Zebra Fish Housing System

PVC-fabricated main structure, corrosion-resistant Electric roller blinds ( able to control roller blinds up / down to stop at any position ). Fluorescent lamps operate in coordination with the electric roller blinds to proceed the photoeriod experiment and accelerate the incubation. Able to control the on / off and timer function of fluorescent lamp layer by layer. Integrated the mechanical, biological and chemical filtration systems as a whole. Gravitational flow filtration system for energy saving. Optional devices: pH meter, flow meter, DO ( dissolved oxygen ) meter, conductivity meter. Custom-made system is available.

CryoTrans Series, LN2 storage Container

CryoTrans series Liquid nitrogen storage Container is designed for storage and short-distance transportation of small amount of liquid nitrogen. It is equipped with rubber protection rings and prefixed bottom pad for safety. Stainless steel roller base is optional for convenient transportation. CryoTrans series is widely used in animal husbandry and laboratories.

Optirat® GenII

Designed for flexibility, Optirat GenII houses rats as well as other rodent species, including large groups of mice. The cages are backward compatible with original Optirat racks.

Stereotaxic Animal Anesthesia Solutions

This solution is specially used for neuroscience research. Unique stereotaxic frame nosecone masks are designed to combine anesthesia system and stereotaxic location system, which makes brain-related procedures or research more successful and have much better outcomes, for example, development of animal neurological diseases models (Alzheimer’s and Parkinson’s diseases, cerebral and spinal cord injury etc.), drug injection to brain, cannula implantation for long-term drug administration, nervous stimulation, physiological signal record, microdialysis probe implantation and so on. Similarly, any leaks around animal’s nose can be captured by the scavenging system to protect research subjects from being exposed

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