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    Forced Convection Bench OvensForced Convection Bench OvensForced Convection Bench Ovens

Forced Convection Bench Ovens

  • Grieve - NB350 / NB550 / DR350

Economical ovens 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.

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NB350

Model : NB350


NB550

Model : NB550


DR350

Model : DR350




Economical ovens 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.


Features:
  • Economical ovens 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.Recirculating blower
  • 304 stainless steel interior
  • Incoloy sheathed tubular heating elements
  • Silicone rubber door gasket
  • Sturdy welded steel construction
  • Calibrated temperature controller
  • Manual reset excess temperature interlock
  • On-off switch
  • Red pilot light indicates heater operation
  • Brushed stainless steel exterior
  • 6 lb/cf density industrial rockwool insulation
  • 3-wire cord and plug on 115 volt models
  • Fully factory tested
  • 1 year limited warranty

 


 Model NB-350

Provides 7 cubic feet of work space at temperatures to 350°F. Includes two (2) removable nickel plated wire shelves easily adjustable on 2" centers. Holds a maximum of seven (7) shelves. Widely used for drying small items, preheating plastics, drying powdered metals and curing potting compounds. Double doors for easy loading of large parts.


Model NB-550

Similar to Model NB-350. Also includes two (2) shelves and will hold a maximum of seven (7) shelves. Provides over 5 cubic feet of work space at temperatures to 550°F. Ideal for high temperature processes such as annealing springs and plated parts.


Model DR-350

Specially designed for processing and drying of plastic granules, powdered metal parts and other small parts that must be separated. Eight (8) individual 304 stainless steel drawers keep parts separated and allow individual inspection or removal without opening conventional doors. This reduces heat loss and prevents process interruption. Temperatures to 350°F. Standard drawers have 3/4" diameter perforations on 1 1/4" staggered centers on bottom and sides. Solid drawers also available.



 Standard Equipement:

Standard Electrical Characteristics


  • 115 volts, 60 Hz, 3-wire cord with plug
  • 208 volts, 1-phase, 60 Hz
  • 230 volts, 1-phase, 60 Hz
  • Other electrical characteristics available


Standard Temperature Control Systems


Calibrated main temperature controller regulates desired oven temperature. Independent manual reset excess temperature interlock protects against failure of main temperature controller. On-off switch located on panel controls electrical power to oven. Red pilot light indicates heater operation.

 


  • Additional Shelves, 20 lbs distributed load per shelf, 40 lbs maximum oven load, specify oven model when ordering.
  • Dial Thermometer 10-290°C, 50-550°F dual scale range
    Option T550F
  • Digital Indicating Temperature Controller, microprocessor based, thermocouple actuated, in lieu of standard controller.
    Option DIG1
  • Digital Timing Temperature Controller, microprocessor based, digital indicating, incorporates 99 hour 59 minute timer. Starts timing when temperature reaches set point and shuts down oven heat at end of set time.
    Option DTS1 
  • Programmable Temperature Controller, microprocessor based, digital indicating, thermocouple actuated, in lieu of standard controller.
    Option PTC1 
  • Recording Thermometer, thermocouple actuated, 24-hour, 10" diameter circular chart requires optional Digital Controller DIG1, DTS1 or PTC1 (side mounted).
    Option RT1 
  • Adjustable Excess Temperature Interlock, thermocouple actuated, manual reset.
    Option AETC 
  • Solid State Relay, in lieu of standard contacter.
    Option SSR
  • Shut Down Timer, with continuous "hold" feature
  • 60 minute range.
  • 12 hour range.
    Option BTMR60À
    Option BTMR12 
  • Set of Eight (8) 304 Stainless Steel Drying Pans, 11 1/2" W x 20" D x 2" H (NB Models only, requires two (2) add'l shelves).
    Option NBPN 
  • Oven Stand, raises unit to convenient 31" work level Shipped separately, requires assembly.
    Option STNDNB
  • Exhaust Chamber Adapter, to fit standard 3" stove pipe. Shipped separately, requires assembly. 
    Option BEXCH


Model NB-350, including optional:

  • Roof mounted, exhaust chamber adapter
  • Drying pans and two (2) additional shelves
  • Shut down timer
  • Oven stand


READ ON OUR BLOG:

Standard & custom-made Grieve ovens in action

Not for use  with flammable solvents or vapors. Other models available for these applications.
ModelWork SpaceOutsideMaximumInsu-Watts
DimensionsTemperaturelation
DimensionsVolume(WxDxH)115V*
(WxDxH)Cu. Ft.
NB-35028" x 24" x 18"741" x 30" x 23"350°F2"2000
NB-55026" x 22" x 16"5.341" x 30" x 23"550°F3"2400
DR-3508 Drawers‡4.841" x 30" x 23"350°F2"2000
ModelWattsOperating Characteristics †Approx
115V*208VControlOvenRise TimeShipping
230VAccuracyUniformity115V230VWeight
NB-35020002000±10°F±10°F17 min17 min210 lbs
NB-55024003000±10°F±15°F32 min21 min235 lbs
DR-35020002000±10°F±25°F20 min20 min285 lbs
* 15 lbs distributed load per shelf, 30 lb maximum oven load.