Shel Lab Model 2428 Large Capacity CO₂ Incubator
As research programs expand from small-scale cell culture into pilot production, biologics development, or large-volume tissue culture, standard laboratory incubators can quickly become a bottleneck. Limited chamber capacity often forces researchers to divide experiments across multiple incubators, increasing workflow complexity and introducing unnecessary environmental variation. The Shel Lab Model 2428 Large Capacity CO₂ Incubator was engineered to solve this challenge by providing an exceptionally large incubation environment capable of supporting high-throughput cell culture while maintaining precise temperature and CO₂ uniformity throughout the chamber.
With an impressive 30 cubic foot (approximately 850-liter) chamber, the Model 2428 is ideal for laboratories operating roller bottle systems, large-scale tissue culture programs, cell harvesting operations, vaccine development, and other applications requiring substantial incubation capacity. Its air-jacketed heating system, infrared CO₂ sensor, HEPA-filtered airflow, and independently controlled heating zones work together to deliver stable environmental conditions even within a chamber significantly larger than conventional laboratory incubators. Purchasing a refurbished Shel Lab 2428 from American Instrument Exchange provides laboratories with industrial-scale incubation capacity while significantly reducing capital equipment costs.
Shel Lab Model 2428 Large Capacity CO₂ Incubator Key Features
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Approximately 30 cu. ft. (850 L) chamber capacity
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Air-jacketed heating system
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Infrared (IR) CO₂ sensor
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Temperature range from ambient +8°C to 60°C
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CO₂ control range from 0% to 20%
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Large viewing window
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HEPA filtration system
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Independently heated chamber, door, and front liner
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Heated CO₂ inlet
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Digital PID temperature and CO₂ controls
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Four interior electrical outlets
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Over-temperature protection
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Audible and visual alarm system
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Ideal for roller bottle apparatus
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90-day warranty from American Instrument Exchange
Designed for High-Volume Cell Culture Operations
Unlike conventional laboratory incubators that primarily support bench-scale research, the Shel Lab Model 2428 was designed for laboratories where production capacity is equally as important as environmental precision.
Its spacious chamber accommodates large roller bottle systems, stacked shelving configurations, and extensive culture vessel inventories while maintaining excellent temperature and CO₂ uniformity throughout the entire workspace. Rather than managing several smaller incubators, laboratories can consolidate large culture volumes into a single controlled environment, simplifying workflow while improving operational efficiency.
The Model 2428 is particularly valuable for biotechnology manufacturers, pharmaceutical development laboratories, vaccine production facilities, contract manufacturing organizations, university core facilities, and research groups performing large-scale expansion of mammalian cell cultures.
Many laboratories pair large-capacity incubators like the Shel Lab 2428 with biosafety cabinets for aseptic processing, high-capacity refrigerated centrifuges for harvesting cultured cells, laboratory refrigerators for media storage, and ultra-low temperature freezers for long-term preservation of production cell banks.
Common Applications
The Shel Lab Model 2428 is commonly used for:
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Large-scale mammalian cell culture
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Roller bottle production
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Cell harvesting
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Vaccine development
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Biopharmaceutical manufacturing
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Monoclonal antibody production
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Stem cell expansion
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Cell therapy research
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Tissue engineering
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Contract manufacturing
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Pharmaceutical process development
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High-volume microbiology
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Academic core laboratories
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Industrial biotechnology
Its exceptionally large chamber makes it especially well suited for laboratories transitioning from research-scale experiments to pilot-scale production.
Ideal Laboratory Environments
The Shel Lab Model 2428 is commonly installed in pharmaceutical manufacturing facilities, biotechnology companies, contract development and manufacturing organizations (CDMOs), university core laboratories, vaccine research centers, and industrial research laboratories where multiple investigators or production teams require access to a shared incubation environment.
Because of its large chamber capacity, the incubator also serves facilities operating roller bottle apparatus or other large-format culture systems that cannot easily be accommodated inside conventional CO₂ incubators.
Temperature Recovery and Environmental Stability
Maintaining uniform environmental conditions becomes increasingly challenging as incubator size increases. Large chambers require careful airflow management and multiple heating zones to ensure that cultures located on different shelves experience the same incubation conditions.
The Shel Lab Model 2428 addresses this challenge through a PID-controlled air-jacket heating system combined with three independently regulated heating circuits controlling the main chamber, outer door, and front liner. This design minimizes condensation while promoting exceptional temperature uniformity throughout the chamber. Operating from ambient +8°C to 60°C, the incubator provides stable conditions suitable for both standard mammalian cell culture and specialized incubation protocols. Its infrared CO₂ sensor provides rapid recovery after door openings while maintaining excellent accuracy regardless of chamber humidity.
Contamination Control
Large-capacity incubators frequently experience higher traffic than standard laboratory incubators because they serve multiple investigators or production teams simultaneously. The Shel Lab Model 2428 incorporates several design features intended to maintain a clean incubation environment despite this increased usage.
An integrated HEPA filtration system continuously removes 99.97% of airborne particles measuring 0.3 microns or larger before recirculating chamber air. The heated CO₂ inlet minimizes condensation around the gas entry point, helping reduce areas where microbial growth could develop. Large, smooth stainless steel interior surfaces simplify routine cleaning, while the spacious chamber provides easy access for maintenance and loading of large culture systems. Together, these features help laboratories maintain reliable incubation conditions during demanding, high-throughput cell culture operations.
Sample Storage Recommendations
The Shel Lab Model 2428 is designed for laboratories where incubation capacity is a critical part of daily operations. Its approximately 30 cubic foot (850-liter) chamber provides ample space for large numbers of T-flasks, culture dishes, multiwell plates, spinner flasks, cell factories, roller bottle systems, and other large-format culture vessels. Rather than distributing experiments across multiple smaller incubators, researchers can centralize high-volume cell culture within a single controlled environment, simplifying workflow and improving consistency. (americaninstrument.com)
The large interior accommodates adjustable shelving configurations that can be customized to support a variety of vessel sizes and production workflows. Laboratories using roller bottle apparatus can dedicate entire sections of the chamber to rotating culture systems, while facilities performing conventional adherent cell culture can maximize storage density with multiple shelves of flasks or culture plates.
Because of the incubator's size, organizing cultures by project, production batch, or investigator is recommended to minimize unnecessary handling and improve traceability. Maintaining adequate airflow around stored vessels also promotes consistent temperature and CO₂ recovery throughout the chamber after routine door openings.
Energy Efficiency and Operating Costs
Operating a single large-capacity incubator can often be more efficient than maintaining several smaller units performing the same workload. Consolidating cultures into one chamber reduces overall energy consumption, simplifies preventive maintenance, and minimizes calibration requirements across multiple instruments.
The Shel Lab 2428 utilizes an air-jacketed heating system, eliminating the maintenance associated with traditional water-jacket incubators while still providing rapid warm-up and stable temperature regulation. Independent heating circuits for the chamber, door, and front liner reduce condensation and improve environmental stability without requiring additional operator intervention. (americaninstrument.com)
Its infrared CO₂ sensor also contributes to efficient operation by accurately regulating gas concentrations without being significantly affected by chamber humidity. Combined with the integrated HEPA filtration system, these features help laboratories maintain reliable incubation conditions while reducing operating costs associated with contamination events, repeated experiments, and unnecessary downtime.
For facilities performing high-volume cell culture every day, the productivity gained from a single large-capacity incubator can outweigh the operational complexity of managing multiple smaller systems.
Key Specifications
| Specification |
Details |
| Manufacturer |
Shel Lab |
| Model |
2428 |
| American Instrument Exchange SKU |
3198? INC |
| Incubator Type |
Air-Jacketed CO₂ Incubator |
| Chamber Capacity |
Approximately 850 L (30 cu. ft.) |
| Chamber Material |
Stainless Steel |
| Exterior Construction |
Powder-Coated Steel |
| Heating System |
Air Jacket with Independent Heating Zones |
| Temperature Range |
Ambient +8°C to 60°C |
| Temperature Resolution |
0.1°C |
| CO₂ Control Range |
0% to 20% |
| CO₂ Sensor |
Infrared (IR) |
| Humidity System |
Water Pan / Natural Evaporation |
| Relative Humidity |
Up to 95% RH |
| Air Filtration |
HEPA Filter |
| Heating Zones |
Chamber, Door, and Front Liner |
| Heated CO₂ Inlet |
Yes |
| Interior Electrical Outlets |
Four |
| Interior Dimensions |
Approximately 40" W × 32" D × 49" H |
| Exterior Dimensions |
Approximately 48" W × 39" D × 78" H |
| Door |
Heated Glass Inner Door with Insulated Outer Door |
| Display |
Digital PID Controller |
| Alarm System |
Audible and Visual |
| Electrical Requirements |
230 V |
| Approximate Weight |
Approximately 700 lb |
Specifications are believed to be accurate but may vary depending on factory-installed options. Please verify all specifications prior to purchase.
Frequently Asked Questions
Who is the Shel Lab Model 2428 designed for?
The Model 2428 is intended for laboratories that require substantially more incubation capacity than a conventional benchtop or standard floor incubator can provide. It is commonly used by pharmaceutical companies, biotechnology manufacturers, vaccine developers, and research facilities performing large-scale cell culture.
Can this incubator accommodate roller bottle systems?
Yes. One of the primary advantages of the Shel Lab 2428 is its ability to support large roller bottle apparatus and other oversized culture systems that would not fit inside conventional laboratory incubators. Its spacious chamber also provides flexibility for custom shelving and large-format culture vessels.
Why does the incubator have multiple independent heating zones?
Maintaining uniform temperatures across an 850-liter chamber is significantly more challenging than in a standard incubator. Independent heating of the chamber, door, and front liner helps reduce temperature gradients, minimizes condensation, and improves environmental consistency throughout the entire incubation space.
Does a larger incubator affect temperature recovery?
Although larger chambers naturally contain more air, the Shel Lab 2428 combines PID-controlled heating, an air-jacket design, and an infrared CO₂ sensor to promote rapid recovery following routine door openings. Proper loading practices and minimizing unnecessary access further improve recovery performance.
Is this incubator suitable for production environments?
Yes. The Model 2428 was developed specifically for high-throughput laboratories and pilot production environments where large numbers of cultures must be maintained simultaneously. Its capacity makes it well suited for biologics development, monoclonal antibody production, vaccine research, and other large-scale applications.
How does the HEPA filtration system benefit cell culture?
The integrated HEPA filter continuously removes airborne particulates from recirculated chamber air, helping maintain a cleaner incubation environment. This is particularly valuable in shared laboratories where the incubator may be accessed frequently by multiple users.
What types of laboratories benefit most from a 30 cubic foot incubator?
Large pharmaceutical companies, contract development and manufacturing organizations (CDMOs), university core facilities, vaccine production laboratories, and industrial biotechnology companies often benefit most from the increased capacity. Laboratories expanding into pilot-scale production can frequently consolidate several smaller incubators into a single large-capacity system.
Why purchase a refurbished Shel Lab Model 2428 from American Instrument Exchange?
Purchasing a refurbished Shel Lab 2428 from American Instrument Exchange provides industrial-scale incubation capacity at a substantial savings compared with buying new equipment. Every incubator is inspected and tested before shipment and includes a 90-day warranty, allowing laboratories to expand production capacity while managing capital equipment budgets effectively.
