The Despatch 900 Series comprises industrial ovens engineered for precise heat-treating, batch processing, and laboratory applications. These systems deliver uniform heating through closed-loop airflow, microprocessor-based temperature control, and factory-calibrated safety thermostats. Models span benchtop chambers to walk-in configurations, with maximum temperatures reaching 900°F (482°C) or 1000°F (538°C) and rapid cooling via liquefied gas injection. All units are designed for repeatable results and continuous operation with minimal maintenance.
## Technical Specifications
**Temperature Control & Heating**
• Low-inertia coil heaters enable responsive adjustments
• Microprocessor-based controllers: Despatch RDC, Protocol Plus™, or Protocol 3™
• Close temperature tolerance for consistent, repeatable results
• Factory-calibrated overtemperature thermostats prevent excessive chamber temperatures
• High-limit control available on select models
• Maximum operating temperatures: 900°F (482°C) or 1000°F (538°C) depending on model
**Cooling System**
• Liquefied gas injection (CO₂ or LN₂) for rapid temperature reduction
• Cooling rates specified per temperature range with empty chamber baseline
**Chamber Construction**
• Interior: Aluminized steel (standard) or stainless steel (cleanroom/enhanced durability applications)
• Horizontal recirculating airflow for uniform heating
• Benchtop/lab models: 1 to 27 cubic feet (28 to 764 liters)
• Cabinet models: 4 to 35 cubic feet
• Walk-in/truck-in models: 52 to 952 cubic feet
**Electrical & Control Panel**
• Standard: 115 V, 50/60 Hz
• Optional: 230 V transformer kits
• NEMA plugs: 20 A (Hubbell 5362) or 30 A (Hubbell 9308) at 120 V per NEC requirements
• UL and C-UL listed control panel
## Key Features
• Closed airflow system for efficient, uniform heat distribution
• Multiple controller options with digital setpoint capability
• Benchtop to walk-in configurations for diverse production scales
• Stainless steel option for cleanroom and corrosive environments
## Typical Applications
Heat treatment, materials testing, batch thermal processing, laboratory validation, and controlled environment chamber work.
## Compatibility & Integration
Available with Despatch RDC or Honeywell Dialapak controller interfaces. Optional 230 V power compatibility via transformer kits.
