Walk-In Ovens

Bulletin WI-510


For paint baking, drying, preheating, annealing or any other heat processing of large or numerous parts at temperatures to 4000C. Oven size conveniently accommodates materials handling equipment. Choice of either combination or full horizontal airflow in either rear or top mounted heat chamber configurations. Designed and constructed for long, hard, continuous use.



  • Digital, microprocessor based, thermocouple actuated, indicating temperature controller
  • Modulating burner on gas ovens.
  • Motor control push buttons and on-off heat switch
  • Easy to see pilot lights.

Safety Equipment - Electric Oven

  • Adjustable, thermocouple actuated, manual reset excess temperature controller.
  • Separate heating element control contactors
  • Recirculating blower air flow safety switch

Safety Equipment -Gas Oven

  • Adjustable, thermocouple actuated, manual reset excess temperature controller.
  • Electronic flame safeguard protection.
  • Power forced exhauster for combustion venting.
  • Exhauster air flow safety switch
  • Recirculating blower airflow safety switch.
  • Safety shut off main gas valve.
  • Testing device to test tight closure of main gas valve
  • Solenoid blocking valve upto 400,000 BTU/Hr.heat input: motorized back up valve and vent valve over 400.000 BTU/Hr
  • Purge timer
  • High gas pressure switch.


  • Choice of air flow patterns
  • Adjustable patented opposed louvers on full coverage supply return ductwork.
  • Choice of rear or top heat chamber
  • Available with doors at each end
  • Choice of floor configurations, flat plate, insulated floor, truck wheel guide tracks
  • Exceptionally heavy-duty doors.
  • Aluminized steel exterior with enamel finish
  • High temperature door gasket with stainless steel spring insert
  • 6lbs./cf. density industrial rock wool insulation
  • Brushed stainless steel control panel face
  • 1 year limited warranty

Every oven fully assembled and individually factor tested.


All Models

- 230 volts, 3-phase, 50 HZ
- Other electrical characteristics available
Aluminized steel interior. Carbon steel structural members and steel plate painted with high temperature aluminum paint. Trite Green enamel painted aluminized steel exterior.

Two air flow patterns available

Combination air flow for random shapes and sizes or for large bulky objects where heated air can move upward, around and through the load. Horizontal air flow for applications where heated air must move sideways to pass through a load such as trays or flat sheets. See circulation diagrams below.

Two oven configurations available
Rear heat chamber for easy handling, low profile equipment. Top mounted heat chamber to minimize factory floor space occupied or to allow installation of doors at each end. Doors on front and rear allow for pass through operation or for loading from both ends.

To facilitate shipping and handling, top mounted heat chamber ovens are available with removable heat chambers. These ovens are fully assembled and tested. They are then sectioned and match marked for easy reassembly at destination by customer.

Ovens come standard with steel plate floor and doorsill that oven doors seal against. If specified, doorsill can be eliminated and doors provided with drag seals. Upto 6 foot wide workspace; plate floor is 1/8" thick. Wider ovens have ΒΌ" plate floor. Provisions for customer installed insulated floor are included. Optional factory installed insulated floor is available. See Bulletin W1-513

Optional truck wheel guide trucks for loading equipment are available. Guide tracks can be installed on steel plate floor, recessed into insulated floor, or installed on top of insulated floor. See Bulletin WI-513

Optional loading trucks specifically designed for use in each oven are available. Loading trucks come in shelf loading models with removable shelves or as heavy-duty flat bed models with grating surface. See Bulletin WI-513.


Each features completely wired, side access control panel enclosing terminals for incoming power, temperature controllers, push buttons and pilot lights. Motor starter and heating element contactors electrically interlocked to shut off heaters if power to blower is interrupted and to permit operation of blower without heat for cooling. Incoloy sheathed tubular heating elements.


1,000 BTU natural gas at 6" water column pressure: 1" NPT inlet to 350,000 BTU/HR 1 1/4" NPT to 1,200,000 BTU/HR Other gas characteristics available Control panel as detailed. A 325-CFM powered forced exhauster is included upto 800,000 BTU/HR; at 1,200,000 BTU/HR a 650-CFM exhauster is included. Both exhausters have 6" outlets. Automatic preignition purge period and push button electric ignition contributes to ease of operation. Modulating gas burner is protected with electronic flame safety relay.


Heater air is provided from full coverage supply ductwork at each side of the workspace and sweeps upward through the load to a return duct at the top of the workspace. Used in most shelf truck loading applications where sufficient shelf area is left open to allow vertical air movement upward through the loaded truck. Ideal for large parts placed directly on oven floor or loaded on a flat bed truck. (See Bulletin WI-511)


Heated air is blown horizontally across the workspace between full coverage ductwork. For shelf truck loading applications with densely loaded shelves, solid bottom trays, or flat sheets where heated air can only pass sideways above and below each level. Also used for heating stacks of plates, separated by spacers, placed on oven floor or loaded on a flat bed truck. (See Bulletin WI-512)

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