High Temperature Universal Ovens

Front-to-back horizontal air flow accommodates virtually any oven loading without restricting air passage.

Work can be shelf loaded or placed directly on the optional reinforced work space bottom. Designed for annealing, sintering, hardening or any other application where a dependable source of heated air with higher temperatures is required.

Certifications

• UL Listed Control Panel
• Meets the Requirements of the Following Standards:
• NFPA 86 (Standard for Ovens and Furnaces)
• NFPA 70 (National Electric Code)
• FM (Factory Mutual)
• OSHA

Caution:

• When processing combustible material fire protection should be considered
• Processing flammable solvents or vapors requires forced exhaust to provide safety ventilation. 

Safety Equipment

• Adjustable manual reset excess temperature interlock to turn off heat on malfunction of main temperature controller
• Separate heating element control contactors to turn off heat on malfunction of main control contactors
• Recirculating blower air flow safety switch to turn off heat on loss of recirculated air flow
• Electrical interlock shuts off heat if power to recirculating blower is interrupted

Controls

• Digital temperature controller
• Heat chamber temperature controller on 1250⁰F models to limit heating element temperature
• Motor control push buttons and on-off heat switch
• LED pilot lights
• 5 kA short circuit current rating (SCCR)

Construction

• 208 volt, 230 volt or 460 volt, 3-phase, 60 HZ – other input power available
• All welded construction
• Durable, electrically isolated, Incoloy tubular heating elements
• Heating elements located in heat chamber to prevent radiant heating
• High pressure stainless steel recirculating blower
• Adjustable fresh air intake and 4” diameter exhaust outlet damper
• Channel shelf supports prevent shelves tipping
• Insulated with 2” of refractory ceramic fiber and 10 lbs per cubic foot density rockwool insulation
• 16 gauge 304 stainless steel interior with stainless hardware
• Aluminized steel exterior with Trilite Green enamel finish
• Brushed stainless steel control panel face
• Exceptionally heavy duty doors, hinges and door frame with explosion venting latches
• Dual fiberglass door gasket with stainless steel spring insert; one gasket seals to inside door surface and second seals to outer oven face
• Slip flashing at doorway to allow inner oven to expand without affecting door sealing
• Fully assembled and factory tested for temperature uniformity

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Standard & custom-made Grieve ovens in action