High Temperature Bench Ovens
- Grieve - NT-800, NTR-800, NT-1000 and NTR-1000
- Analog non-indicating temperature controller
- Red pilot light to indicate heater operation
- On-Off switch
Designed to fill the need for economically priced ovens for high temperature processes, such as tempering and stress relief.
Easily moved to various locations for processing large parts, baking, drying components after cleaning, dehydration, preheating, curing and other applications requiring circulation of heated air.
Outside Dimensions
Heat input footnote:
- Specification chart above utilizes 115V; for 208 & 230 volt — heat input is 3.0 kW
Operating Characteristics
- Accuracy as percent of controller span.
- Uniformity at 50°F below maximum temperature.
- Rise Time in minutes to 50°F below maximum temperature.
- Tests run with empty oven and minimum exhaust.
- Performance will vary with load and application.
Certifications
- Meets the Requirements of the Following Standards:
- NFPA 86 (Standard for Ovens and Furnaces)
- NFPA 70 (National Electric Code)
- 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
Controls
- Analog non-indicating temperature controller
- Red pilot light to indicate heater operation
- On-Off switch
Construction
- 115 volt, 208 volt, 230 volt or 460 volt, 1-phase, 50-60 HZ- other input power available
- 3-wire cord with plug on 115 volt models requires 30 ampere 115 volt service
- 3-wire cord only on 208 and 230 volt models
- 460 volt models incoming power hardwired to control panel
- Durable, electrically isolated, Incoloy tubular heating elements
- Shelves adjustable on 2” centers
- Stainless steel shelves on 1000⁰F models
- Insulated with 6 lbs per cubic foot density rockwool insulation
- 304 stainless steel interior with plated hardware
- Brushed stainless steel exterior
- Fiberglass door gasket with stainless steel spring insert
- Fully assembled and factory tested
*** Not for use with flammable solvents, vapors, or gases. Other models available for these applications
| MODEL | WORKSPACE | OUTSIDE DIMENSIONS*(WXDXH) | MAX TEMP | BLOWER | HEAT INPUT | INSULATION THICKNESS | OPERATING CHARACTERISTICS† | APPROX SHIPPING WEIGHT | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DIMENSIONS(WXDXH) | VOLUMECU FT | CFM | HP | ELECTRICKW | GASBTU/HR | CONTROL ACCURACY | TEMPERATURE UNIFORMITY | RISE TIME (ELECTRIC) | RISE TIME (GAS) | |||||
| NT-800 | 26" x 22" x 13" | 4.3 | 39.5" x 34" x 30" | 800°F | Not Available | NA | 2.4 | Not Rated | 4" | ± 0.5% | ± 20°F | 60 | Not Available | 310 lbs |
| NTR-800 | 26" x 22" x 13" | 4.3 | 39.5" x 34" x 30" | 800°F | Not Available | NA | 2.4 | Not Rated | 4" | ± 0.5% | ± 15°F | 55 | Not Available | 310 lbs |
| NT-1000 | 26" x 22" x 13" | 4.3 | 41.5" x 35" x 31" | 1,000°F | Not Available | NA | 2.4 | Not Rated | 5" | ± 0.5% | ± 25°F | 105 | Not Available | 335 lbs |
| NTR-1000 | 26" x 22" x 13" | 4.3 | 41.5" x 35" x 31" | 1,000°F | Not Available | NA | 2.4 | Not Rated | 5" | ± 0.5% | ± 20°F | 95 | Not Available | 335 lbs |
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