Model: SWT06FD – Walk-In Oven

DATA SHEET OWNER'S MANUAL REQUEST A QUOTE

Operating Temperature 

200°F (93°C) to 650°F (343°C)

Heating Medium

Direct fired natural gas modulating burner with direct coupled, digital actuated control valve. High turndown ratio allows for rapid heat-up and tight temperature controls.

  • Low CO and NOX emissions
  • F.M. compliant fuel train

Airflow Pattern

Dual (Combination) Airflow: Hot air is supplied from both of the side walls and returned through a top plenum.

Input Voltage

Standard: 480/3/60. Please consult factory for additional options.

Control System

LEWCO’s standard control package includes a single set-point process temperature controller and redundant high-limit controller. Circulation fan(s) and exhaust fan(s) include air proving circuits that are electrically interlocked with the heating circuit. All controls are housed in a NEMA 12 enclosure employing a full voltage lockable disconnect switch. Controls are wired to NFPA 70 and 79 electrical standards in our own UL508A certified panel shop. Independent third party inspections available.

Optional:

Door Switch
Disables heat when door is opened on electrically heated ovens; holds burner at low fire on fuel-fired ovens.

Batch Timer
Infinitely adjustable up to 100 hrs., includes illuminated On/ Off switch to indicate timed operation and audible alarm when time has elapsed.

Ramp/ Soak Controller
Programmable ramp/ soak temperature controller with capability to store different recipes with multiple segments.

Chart Recorder
Single pen circular paper chart recorder for continuous monitoring of temperature data. Comes with (1) Type “J” thermocouple input.

PLC
Programmable Logic Controller for processes with numerous inputs and outputs; or requiring automation of material handling equipment. The PLC can also allow for Ethernet connectivity for remote system monitoring.

Touchscreen HMI
Human Machine Interface provides the operator easy access and control of different parts of the equipment. Allows real time monitoring and provides feedback of the process in a visual, easy to read format.

Composite Curing Controls:

Data Logger: Multiple input digital data logger continuously records temperature and other process data. Allows downloading of digital data files through USB or Ethernet connection. Data can also be viewed on a full color display or on a web server when connected to a network.

Thermocouple Jacks: Thermocouple jack panel for high-temperature Type “J” thermocouples, located inside the oven. Includes wiring to data logger if purchased.

Vacuum Ports: ½” NPT thru-wall vacuum ports, each with vacuum rated manual ball valve and indicating gauge. All ports are connected to a 1” NPT header.

Vacuum Pump: Includes motor starter circuit and connection to vacuum header pipe.

Model (NFPA Class B) Overall Dimensions Door Swing Radius Workspace Dimensions Workspace Volume (cubic ft.) Burner (BTU/ Hr) Circulating Fan
(CFM)		 Motor
(HP)		 Air Changes per Minute Exhaust Fan Capacity (CFM) Exhaust Motor (HP) Solvents per Batch
(Gals.)		 Ships Fully Assembled
“W “D “H “W “D “H
SWT06FD-48-48-60
 79 60 118 24″ 48 48 60 80 200,000 1,700 1 21.25 250 1/4 0 Yes
SWT06FD-48-48-72
 79 60 130 24″ 48 48 72 96 200,000 2,000 1 1/2 20.83 250 1/4 0 Yes
SWT06FD-48-48-96
 79 60 154 24″ 48 48 96 128 200,000 2,500 2 19.53 250 1/4 0 Yes
SWT06FD-60-60-60
 91 72 118 30″ 60 60 60 125 200,000 2,500 2 20.00 250 1/4 0 Yes
SWT06FD-60-60-72
 91 72 135 30″ 60 60 72 150 200,000 3,000 2 20.00 250 1/4 0 Yes
SWT06FD-60-60-96
 91 72 165 30″ 60 60 96 200 400,000 4,000 3 20.00 250 1/4 0 Yes
SWT06FD-72-72-72
 103 84 141 36″ 72 72 72 216 400,000 4,000 3 18.52 250 1/4 0 Yes
SWT06FD-72-72-96
 105 84 173 36″ 72 72 96 288 400,000 5,500 3 19.10 250 1/4 0 No
SWT06FD-72-120-96
 111 132 176 36″ 72 120 96 480 400,000 9,000 7 1/2 18.75 250 1/4 0 No
SWT06FD-84-84-84 119 96 162 42″ 84 84 84 343 400,000 7,000 5 20.41 250 1/4 0 Yes
SWT06FD-84-96-84 121 108 163 42″ 84 96 84 392 400,000 8,000 5 20.41 250 1/4 0 Yes
SWT06FD-84-120-84
 123 132 168 42″ 84 120 84 490 700,000 10,000 7 1/2 20.41 500 1 0 No
SWT06FD-84-120-96
 125 132 186 42″ 84 120 96 560 700,000 12,000 7 1/2 21.43 500 1 0 No
SWT06FD-96-96-96 135 108 180 48″ 96 96 96 512 700,000 10,000 7 1/2 19.53 500 1 0 No
SWT06FD-96-120-96
 137 132 186 48″ 96 120 96 640 700,000 12,000 7 1/2 18.75 500 1 0 No
SWT06FD-96-144-96
 141 156 193 48″ 96 144 96 768 700,000 16,000 10 20.83 500 1 0 No
SWT06FD-96-168-96
 143 180 194 48″ 96 168 96 896 700,000 18,000 15 20.09 500 1 0 No
SWT06FD-96-192-96
 145 204 201 48″ 96 192 96 1,024 700,000 20,000 15 19.53 500 1 0 No
SWT06FD-96-240-96
 147 252 207 48″ 96 240 96 1,280 1,000,000 24,000 15 18.75 750 1 0 No
SWT06FD-96-240-120
 151 252 163 48″ 96 240 120 1,600 1,500,000 30,000 20 18.75 1,000 1 1/2 0 No
SWT06FD-96-288-96
 151 300 216 48″ 96 288 96 1,536 1,500,000 30,000 20 19.53 1,000 1 1/2 0 No
SWT06FD-96-288-120
 159 300 252 48″ 96 288 120 1,920 1,500,000 40,000 20 20.83 1,000 1 1/2 0 No
SWT06FD-120-120-96
 165 132 193 60″ 120 120 96 800 700,000 16,000 10 20.00 500 1 0 No
SWT06FD-120-120-120
 169 132 225 60″ 120 120 120 1,000 700,000 20,000 15 20.00 500 1 0 No
SWT06FD-120-144-96
 167 156 194 60″ 120 144 96 960 700,000 18,000 15 18.75 500 1 0 No
SWT06FD-120-144-120
 171 156 231 60″ 120 144 120 1,200 1,000,000 24,000 15 20.00 750 1 0 No
SWT06FD-120-168-96
 169 180 206 60″ 120 168 96 1,120 1,000,000 22,000 15 19.64 750 1 0 No
SWT06FD-120-168-120
 173 180 232 60″ 120 168 120 1,400 1,000,000 26,000 15 18.57 750 1 0 No
SWT06FD-120-192-96
 171 204 207 60″ 120 192 96 1,280 1,000,000 24,000 15 18.75 750 1 0 No
SWT06FD-120-192-120
 175 204 240 60″ 120 192 120 1,600 1,500,000 30,000 20 18.75 1,000 1 1/2 0 No
SWT06FD-120-240-96
 183 252 228 60″ 120 240 96 1,600 1,500,000 30,000 20 18.75 1,000 1 1/2 0 No
SWT06FD-120-240-120
 183 252 252 60″ 120 240 120 2,000 1,500,000 40,000 20 20.00 1,000 1 1/2 0 No
SWT06FD-120-288-96
 183 300 228 60″ 120 288 96 1,920 1,500,000 40,000 20 20.83 1,000 1 1/2 0 No
SWT06FD-120-288-120
 193 300 257 60″ 120 288 120 2,400 1,500,000 50,000 20 20.83 1,000 1 1/2 0 No
Model (NFPA Class A) Overall Dimensions Door Swing Radius Workspace Dimensions Workspace Volume (cubic ft.) Burner (BTU/ Hr) Circulating Fan
(CFM)		 Motor
(HP)		 Air Changes per Minute Exhaust Fan Capacity (CFM) Exhaust Motor (HP) Solvents per Batch
(Gals.)		 Ships Fully Assembled
“W “D “H “W “D “H
SWT06FD-48-48-60
 79 60 118 24″ 48 48 60 80 200,000 1,700 1 21.25 250 1/4 0.04 Yes
SWT06FD-48-48-72
 79 60 130 24″ 48 48 72 96 200,000 2,000 2 20.83 250 1/4 0.04 Yes
SWT06FD-48-48-96
 79 60 154 24″ 48 48 96 128 200,000 2,500 2 19.53 250 1/4 0.04 Yes
SWT06FD-60-60-60
 91 72 118 30″ 60 60 60 125 200,000 2,500 2 20.00 250 1/4 0.04 Yes
SWT06FD-60-60-72
 91 72 135 30″ 60 60 72 150 200,000 3,000 2 20.00 250 1/4 0.04 Yes
SWT06FD-60-60-96
 91 72 165 30″ 60 60 96 200 400,000 4,000 3 20.00 500 1 0.04 Yes
SWT06FD-72-72-72
 103 84 141 36″ 72 72 72 216 400,000 4,000 3 18.52 500 1 0.04 Yes
SWT06-FD-72-72-96
 105 84 173 36″ 72 72 96 288 400,000 5,500 3 19.10 500 1 0.04 No
SWT06FD-72-120-96
 111 132 176 36″ 72 120 96 480 400,000 9,000 7 1/2 18.75 500 1 0.07 No
SWT06FD-84-84-84 119 96 162 42″ 84 84 84 343 400,000 7,000 5 20.41 500 1 0.07 Yes
SWT06FD-84-96-84 121 108 163 42″ 84 96 84 392 400,000 8,000 5 20.41 500 1 0.07 No
SWT06FD-84-120-84
 123 132 168 42″ 84 120 84 490 700,000 10,000 7 1/2 20.41 750 1 0.18 No
SWT06FD-84-120-96
 125 132 186 42″ 84 120 96 560 700,000 12,000 7 1/2 21.43 750 1 0.18 No
SWT06FD-96-96-96 135 108 180 48″ 96 96 96 512 700,000 10,000 7 1/2 19.53 750 1 0.18 No
SWT06FD-96-120-96
 137 132 186 48″ 96 120 96 640 700,000 12,000 7 1/2 18.75 750 1 0.18 No
SWT06FD-96-144-96
 141 156 193 48″ 96 144 96 768 700,000 16,000 10 20.83 750 1 0.18 No
SWT06FD-120-120-96
 165 132 193 60″ 120 120 96 800 700,000 16,000 10 20.00 750 1 0.18 No
SWT06FD-120-120-120
 169 132 225 60″ 120 120 120 1,000 700,000 20,000 15 20.00 750 1 0.18 No
SWT06FD-120-144-96
 167 156 194 60″ 120 144 96 960 700,000 18,000 15 18.75 750 1 0.18 No
SWT06FD-120-144-120
 171 156 161 60″ 120 144 120 1,200 1,000,000 24,000 15 20.00 1,000 1 1/2 0.18 No
SWT06FD-120-168-96
 169 180 206 60″ 120 168 96 1,120 1,000,000 22,000 15 19.64 1,000 1 1/2 0.18 No
SWT06FD-120-168-120
 173 180 232 60″ 120 168 120 1,400 1,000,000 26,000 15 18.57 1,500 2 0.37 No
SWT06FD-120-192-96
 171 204 207 60″ 120 192 96 1,280 1,000,000 24,000 15 18.75 1,500 2 0.37 No
SWT06FD-120-192-120
 175 204 240 60″ 120 192 120 1,600 1,500,000 30,000 20 18.75 2,000 1 0.56 No
SWT06FD-120-240-96
 175 252 216 60″ 120 240 96 1,600 1,500,000 30,000 20 18.75 2,000 1 0.56 No
SWT06FD-120-240-120
 183 252 252 60″ 120 240 120 2,000 1,500,000 40,000 20 20.00 2,000 1 0.56 No
SWT06FD-120-288-96
 183 300 228 60″ 120 288 96 1,920 1,500,000 40,000 20 20.83 2,000 1 0.56 No
SWT06FD-120-288-120
 193 300 257 60″ 120 288 120 2,400 1,500,000 50,000 20 20.83 2,000 1 0.56 No

Note: Sizes are approximate. LEWCO, Inc. reserves the right to change specifications without notice.

Standard oven construction includes a 16 gauge aluminized steel interior with a 18 gauge cold rolled steel exterior. Heat loss is minimized by a unique wall design featuring a welded inner shell and a completely isolated outer frame and covers.

Doors

Heavy-duty doors on an isolated door frame minimize heat loss. Wire core gaskets create a tight seal for efficient heating. Standard doors are bi-parting swing at one end and include explosion venting latches.

     Standard Options:

  • Bi-parting swing doors at both ends
  • Vertical lift guillotine door at one or both ends
  • Door windows

Flooring

Standard ovens operating at or above 650°F include an insulated base (100 p.s.f. max)

     Standard Options:

  • Insulated with (1) pair inverted angle track
  • Insulated with (1) pair 6” wide wheel guides

LEWCO industrial ovens are designed and manufactured to industry standards. Our engineers regularly work to keep updated with the latest revisions in industry codes. If there is a specific industry standard or code compliance that you require for your process heating application, please contact one of our highly knowledgeable applications engineers to learn how LEWCO can help!

About NFPA 86

The National Fire Protection Association’s standard, NFPA 86, documents the guidelines for the safe operation of industrial ovens and furnaces. All LEWCO ovens are designed and manufactured to meet the requirements of this standard. Oven and furnaces in which flammable volatiles or combustible materials are present in the work space are classified by NFPA 86 as “Class A.” Similarly, ovens and furnaces in which no flammable volatiles or combustible materials are present are classified as “Class B.” Due to the risk of fire or explosion, NFPA 86 requires specific safety equipment for all Class A ovens and furnaces. Fuel gas-fired ovens and furnaces also require safety equipment.

  • Powered exhaust of capacity determined by burner size and solvent load present.
  • Explosion relief of adequate area determined by oven or furnace workspace volume.

Industry Standards