Walk-In Ovens Combination Air Flow Top Mounted Heat Chamber
Walk-In Ovens Combination Air Flow Top Mounted Heat Chamber
These ovens produce heated air that is provided from full coverage supply duct work at each side of the work space and sweeps upward through the load to a return duct at the top of the work space. Ideal for large parts placed directly on oven floor or loaded on a truck. Available with removable top mounted heat chamber, fully assembled to oven and tested. Heat chamber match marked and removed for shipping or installation clearance.
Walk-In Ovens Combination Air Flow Top Mounted Heat Chamber Model Specifications:
CAUTION: Ovens processing combustible material are required by National Fire Protection Association 86 Standard for Ovens and Furnaces (NFPA 86) to have a fire suppression system. If flammable solvents or vapors are present in an oven, OSHA requires conformance with NFPA 86 Class A Oven requirements. A powered forced exhauster and other non-standard safety equipment must be added. See Class A Oven Equipment for Solvent Processing resource page, reference our FAQs or contact us us for more information.
| 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) | |||||
| WTC446-500 | 48" x 48" x 72" | 96 | 68" x 65" x 117" | 500°F | 2,450 | 1 ½ | 30 | 350,000 | 6" | ±0.3% | ±6°F | 40 | 20 | 3,065 lbs |
| WTC446-650 | 48" x 48" x 72" | 96 | 70" x 66" x 118" | 650°F | 2,450 | 1 ½ | 40 | 350,000 | 7" | ±0.3% | ±8°F | 45 | 25 | 3,475 lbs |
| WTC446-800 | 48" x 48" x 72" | 96 | 72" x 68" x 120" | 800°F | 3,000 | 2 | 45 | 350,000 | 8" | ±0.3% | ±10°F | 55 | 35 | 3,890 lbs |
| WTC566-500 | 60" x 72" x 72" | 180 | 80" x 89" x 117" | 500°F | 3,300 | 2 | 40 | 350,000 | 6" | ±0.3% | ±6°F | 40 | 20 | 3,960 lbs |
| WTC566-650 | 60" x 72" x 72" | 180 | 82" x 90" x 118" | 650°F | 3,300 | 2 | 45 | 350,000 | 7" | ±0.3% | ±8°F | 50 | 25 | 4,670 lbs |
| WTC566-800 | 60" x 72" x 72" | 180 | 84" x 92" x 120" | 800°F | 4,000 | 3 | 60 | 400,000 | 8" | ±0.3% | ±10°F | 50 | 35 | 4,885 lbs |
| WTC586-500 | 60" x 96" x 72" | 240 | 80" x 113" x 117" | 500°F | 4,200 | 3 | 45 | 350,000 | 6" | ±0.3% | ±6°F | 40 | 20 | 4,225 lbs |
| WTC586-650 | 60" x 96" x 72" | 240 | 82" x 114" x 118" | 650°F | 4,200 | 3 | 60 | 400,000 | 7" | ±0.3% | ±8°F | 45 | 30 | 5,035 lbs |
| WTC586-800 | 60" x 96" x 72" | 240 | 84" x 116" x 120" | 800°F | 5,000 | 5 | 80 | 600,000 | 8" | ±0.3% | ±10°F | 45 | 35 | 6,055 lbs |
| WTC666-500 | 72" x 72" x 78" | 234 | 92" x 89" x 123" | 500°F | 4,200 | 3 | 45 | 350,000 | 6" | ±0.3% | ±6°F | 40 | 25 | 4,210 lbs |
| WTC666-650 | 72" x 72" x 78" | 234 | 94" x 90" x 124" | 650°F | 4,200 | 3 | 60 | 400,000 | 7" | ±0.3% | ±8°F | 45 | 30 | 5,020 lbs |
| WTC666-800 | 72" x 72" x 78" | 234 | 96" x 92" x 127" | 800°F | 5,000 | 5 | 80 | 600,000 | 8" | ±0.3% | ±10°F | 45 | 35 | 6,040 lbs |
| WTC686-500 | 72" x 96" x 78" | 312 | 92" x 113" x 123" | 500°F | 6,000 | 5 | 60 | 400,000 | 6" | ±0.3% | ±6°F | 35 | 25 | 6,180 lbs |
| WTC686-650 | 72" x 96" x 78" | 312 | 94" x 114" x 124" | 650°F | 6,000 | 5 | 80 | 600,000 | 7" | ±0.3% | ±8°F | 40 | 25 | 6,490 lbs |
| WTC686-800 | 72" x 96" x 78" | 312 | 96" x 116" x 135" | 800°F | 7,800 | 5 | 100 | 700,000 | 8" | ±0.3% | ±10°F | 45 | 30 | 7,935 lbs |
| WTC6106-500 | 72" x 120" x 78" | 390 | 92" x 137" x 132" | 500°F | 7,800 | 5 | 80 | 600,000 | 6" | ±0.3% | ±6°F | 30 | 20 | 7,175 lbs |
| WTC6106-650 | 72" x 120" x 78" | 390 | 94" x 138" x 133" | 650°F | 7,800 | 5 | 100 | 700,000 | 7" | ±0.3% | ±8°F | 35 | 25 | 7,485 lbs |
| WTC6106-800 | 72" x 120" x 78" | 390 | 98" x 140" x 136" | 800°F | 10,000 | 7 ½ | 120 | 800,000 | 8" | ±0.3% | ±10°F | 40 | 35 | 8,920 lbs |
| WTC6126-500 | 72" x 144" x 78" | 468 | 94" x 161" x 133" | 500°F | 10,000 | 7 ½ | 80 | 600,000 | 6" | ±0.3% | ±6°F | 40 | 25 | 8,160 lbs |
| WTC6126-650 | 72" x 144" x 78" | 468 | 96" x 162" x 134" | 650°F | 10,000 | 7 ½ | 100 | 700,000 | 7" | ±0.3% | ±8°F | 45 | 30 | 8,575 lbs |
| WTC6126-800 | 72" x 144" x 78" | 468 | 100" x 164" x 137" | 800°F | 12,500 | 10 | 120 | 800,000 | 8" | ±0.3% | ±10°F | 50 | 40 | 10,010 lbs |
| WTC688-500 | 72" x 96" x 96" | 384 | 92" x 113" x 150" | 500°F | 7,800 | 5 | 80 | 600,000 | 6" | ±0.3% | ±6°F | 30 | 20 | 7,055 lbs |
| WTC688-650 | 72" x 96" x 96" | 384 | 94" x 114" x 151" | 650°F | 7,800 | 5 | 100 | 700,000 | 7" | ±0.3% | ±8°F | 35 | 25 | 7,465 lbs |
| WTC787-500 | 84" x 96" x 84" | 392 | 104" x 113" x 138" | 500°F | 7,800 | 5 | 80 | 600,000 | 6" | ±0.3% | ±6°F | 30 | 20 | 7,660 lbs |
| WTC787-650 | 84" x 96" x 84" | 392 | 106" x 114" x 139" | 650°F | 7,800 | 5 | 100 | 700,000 | 7" | ±0.3% | ±8°F | 35 | 25 | 8,075 lbs |
| WTC7107-500 | 84" x 120" x 84" | 490 | 106" x 137" x 138" | 500°F | 10,000 | 7 ½ | 80 | 600,000 | 6" | ±0.3% | ±6°F | 40 | 25 | 8,650 lbs |
| WTC7107-650 | 84" x 120" x 84" | 490 | 108" x 138" x 139" | 650°F | 10,000 | 7 ½ | 100 | 700,000 | 7" | ±0.3% | ±8°F | 45 | 30 | 9,065 lbs |
| WTC7127-500 | 84" x 144" x 84" | 588 | 108" x 161" x 139" | 500°F | 12,500 | 10 | 100 | 700,000 | 6" | ±0.3% | ±6°F | 40 | 25 | 9,840 lbs |
| WTC7127-650 | 84" x 144" x 84" | 588 | 110" x 162" x 140" | 650°F | 12,500 | 10 | 140 | 1,200,000 | 7" | ±0.3% | ±8°F | 40 | 25 | 10,255 lbs |
| WTC8108-500 | 96" x 120" x 96" | 640 | 122" x 137" x 151" | 500°F | 12,500 | 10 | 120 | 800,000 | 6" | ±0.3% | ±6°F | 35 | 25 | 10,055 lbs |
| WTC8108-650 | 96" x 120" x 96" | 640 | 124" x 138" x 152" | 650°F | 12,500 | 10 | 160 | 1,200,000 | 7" | ±0.3% | ±8°F | 35 | 25 | 10,670 lbs |
| WTC8128-500 | 96" x 144" x 96" | 768 | 122" x 161" x 162" | 500°F | 17,500 | 15 | 140 | 1,200,000 | 6" | ±0.3% | ±6°F | 35 | 25 | 11,885 lbs |
| WTC8128-650 | 96" x 144" x 96" | 768 | 124" x 162" x 163" | 650°F | 17,500 | 15 | 180 | 1,200,000 | 7" | ±0.3% | ±8°F | 35 | 25 | 12,605 lbs |
* Outside Dimensions
- All Models: Control panel overhang 9″ right side.
- Model WTC-446: Motor mount overhang 19″ rear; gas burner overhang 15″ front.
- Models WTC-566 & WTC-666—Gas burner overhang 15″ front.
- Gas Models: 325 CFM exhauster, except 650 CFM at 1,200,000 BTU/HR.
- Removable heat chamber recommended.
- Click here for WTC686-650 Dimensional Drawing
† 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.
- See Control & Instrumentation Summary for additional details.
Specifications for Walk-In Ovens Combination Air Flow Top Mounted Heat Chamber
| MODEL | WTC446-500 |
|---|---|
| MAXIMUM OPERATING TEMP | 500°F |
| AIR FLOW | Bottom to Top, Forced Convection, Side to Side |
| CONTROL ACCURACY | ±0.3% |
| OVEN UNIFORMITY | ±6°F |
| RISE TIME - ELECTRIC | 40 mins |
| RISE TIME - GAS | 20mins |
| WORKS SPACE DIMENSIONS (WxDxH) | 48" x 48" x 72" |
| SHELVES INCLUDED | None |
| NUMBER OF SHELVES MAX | None |
| SHELF CAPACITY | None |
| MAX LOAD CAPACITY | Not Available |
| DOORS | Manual |
| LOADING METHOD | Cart or Truck, Floor |
| APPROXIMATE SHIP WEIGHT | 3065 lbs |
| OUTSIDE DIMENSIONS (WxDxH) | 68" x 65" x 117" |
Standard Features for Walk-In Ovens Combination Air Flow Top Mounted Heat Chamber
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. For more information see Class A Solvent Processing page at this website
Safety Equipment
- Adjustable manual reset excess temperature interlock to turn off heat on malfunction of main temperature controller
- 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
- Electric Heat Includes
- Separate heating element control contactors to turn off heat on malfunction of main control contactors
- Gas Heat Includes
- Modulating burner for 1000 BTU per cubic foot natural gas at 6” water column pressure – propane available. Inlet 1” NPT (1-¼ “ NPT above 350,000 BTU/hr input)
- Automatic pre-ignition purge period to clear accumulated gas or fumes
- Push button electric ignition
- Microprocessor based electronic flame safeguard protection to continuously monitor flame and close gas valves if flame is not present
- 325 CFM (650 CFM at 1,200,000 BTU/hr input) powered forced exhauster to provide combustion venting
- Exhauster air flow safety switch to close gas valves on loss of venting
- Two pilot valves to guarantee gas flow to pilot can be stopped
- High and Low gas pressure switches to confirm safe operating pressure range
- Two main burner safety shut off valves with valve seat position indicator to assure gas flow to main burner can be stopped
- Proof of closure switch on one main valve to prevent igniting pilot unless main valve is closed
- Leak test station at each pilot and main burner valve to allow testing for leakage through valve
Controls
- Digital temperature controller
- Motor control push buttons and on-off heat switch
- LED pilot lights
- 5 kA short circuit current rating (SCCR)
Construction
- Available with removable heat chamber
- Choice of
- Electric or Gas heat
- 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
- Heat source located in heat chamber to prevent radiant heating
- High pressure carbon steel recirculating blower
- Full coverage supply and return duct work with adjustable opposed louvers
- Adjustable fresh air intake and 6” diameter exhaust outlet damper
- Insulated with 6 lbs per cubic foot density rockwool insulation
- Aluminized steel interior with carbon steel structural members
- Flat plate floor (12 gauge aluminized steel to 6’ wide work space, ¼” steel plate on wider work spaces) with door sill angle for doors to seal against
- Door sill angle can be eliminated and doors provided with drag seals
- Provisions for installation of insulated floor and truck wheel guide tracks
- 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
- Expansion joints on inner doors avoid bowing
- Fiberglass door gasket with stainless steel spring insert
- Fully assembled and factory tested for temperature uniformity
- 1 year limited warranty
Modifications & Accessories for Walk-In Ovens Combination Air Flow Top Mounted Heat Chamber
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Walk-In Oven Loading Truck Shelf
Oven accessory adding a carbon steel shelf for walk-in oven shelf truck. Size and capacity determined by oven model.
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Flat Bed Truck
Oven accessory adding a Flat Bed Truck with subway grate surface and removable push handle.
Scroll down to the bottom of the page for additional details.
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Walk-In Oven Shelf Truck
Oven accessory adding a shelf loading truck for walk-in oven. Need to specify desired capacity and material.
Scroll down to the bottom of the page for additional details.
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Insulated Floor
Oven modification adding a insulated floor to minimize heat loss and improve temperature uniformity. Floor thickness determined by oven model.
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Truck Tracks
Oven modification adding floor level Truck Tracks. Truck tracks to allow truck loading through doorsill and prevent damage to sidewall louvers.
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Insulated Floor With Recessed Truck Tracks
Oven modification adding an insulated floor with recessed truck tracks, used where oven will be loaded at factory level.
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Insulated Floor With Surface Truck Tracks
Oven modification adding a insulated floor with surface truck tracks, used where oven will be recessed into factory floor or loaded with an external ramp.
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Programmable Temperature Controller
Oven modification adding a programmable Temperature Controller. Microprocessor based, digital indicating, thermocouple actuated, in lieu of standard controller.
-Program Parameters: 40 profiles of up to 50 steps each, a real-time clock with battery backup to allow starting profile at any time of day
-Digital Display, 4.3” color touch screen
-Accuracy, ±0.1% of span plus 1 degree display error
-Connectivity, Relay output for alarm or other notification, two (2) USB ports, Ethernet compatible
Also Available:
-Up to four (4) control channels of temperature, relative humidity or vacuum
-Monitor up to16 sensors
-Math and logic functions
-Digital inputs and outputs
-Data logging
-Graphic Trending
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Recording Thermometer
Accessory adding a Recording Thermometer. Thermocouple actuated.
- Record: 10″ diameter circular chart 24 hour chart rotation
- Digital Display: 0.56″ high, LED, alphanumeric, 4 digit display; LED status display
- Accuracy: ±0.25%of span plus 1 degree display error
Custom Ovens
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Special Walk-In Oven
Serial #: 660491Oven with three independent doors on front for loading epoxy parts being cured.
- MAX TEMP: 350ºF
- WORKSPACE DIMS (WxDxH): 84" x 144" x 108"
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Walk-In Oven
Serial #: 83332A040510′ x 32′ x 8′ removable heat chamber oven sectioned for shipment. Composite curing with motorized dampers on fresh air and exhauster for rapid cooling.
- MAX TEMP: 350ºF
- WORKSPACE DIMS (WxDxH): 120" x 384" x 96"
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Combination Air Flow Walk-In Oven
Serial #: 84343A070510′ x 40′ x 8′ for curing long composite parts. Removable heat chamber and sectioned into 8′ wide pieces for shipment.
- MAX TEMP: 350ºF
- WORKSPACE DIMS (WxDxH): 120" x 480" x 96"
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Walk-In Oven
Serial #: 88516A090610′ x 7′ x 8′ high with motor operated vertical lift door and removable heat chamber.
- MAX TEMP: 650ºF
- WORKSPACE DIMS (WxDxH): 120" x 84" x 96"
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Modified Model WTC787-650 Walk-In Oven
Serial #: 106948A0812Vacuum manifold, vacuum ballast tank and compressed air manifold for curing bagged composite parts
- MAX TEMP: 650ºF
- WORKSPACE DIMS (WxDxH): 96" x 96" x 84"
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Modified Model WTC566-500 Walk-In Oven
Serial #: 106923A0812Vertical lift door and two lane roller conveyor inside and outside for holding large molds
- MAX TEMP: 500ºF
- WORKSPACE DIMS (WxDxH): 62" x 79" x 45"
