Model: SWT05ED – Walk-In Oven

Operating Temperature 

200°F (93°C) to 500°F (260°C)

Heating Medium

Electric, low watt density Incoloy® heaters provide years of trouble free service.  Standard heater bank assemblies are installed in high velocity ductwork to maximize heat transfer.

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. Other third party certifications 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.) Heater Bank
(kW)
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
SWT05ED-48-48-60
78 59 91 24″ 48 48 60 80 36 1,000 1 12.50 N/A N/A 0 Yes
SWT05ED-48-48-72
78 59 103 24″ 48 48 72 96 36 1,400 1 14.58 N/A N/A 0 Yes
SWT05ED-48-48-96
78 59 127 24″ 48 48 96 128 45 1,700 1 13.28 N/A N/A 0 Yes
SWT05ED-60-60-60
90 71 91 30″ 60 60 60 125 36 1,400 1 11.20 N/A N/A 0 Yes
SWT05ED-60-60-72
90 71 103 30″ 60 60 72 150 45 1,700 1 11.33 N/A N/A 0 Yes
SWT05ED-60-60-96
90 71 127 30″ 60 60 96 200 54 2,500 2 12.50 N/A N/A 0 Yes
SWT05ED-72-72-72
102 83 103 36″ 72 72 72 216 54 2,500 2 11.57 N/A N/A 0 Yes
SWT05ED-72-72-96
102 83 132 36″ 72 72 96 288 63 3,500 3 12.15 N/A N/A 0 Yes
SWT05ED-72-120-96
104 131 145 36″ 72 120 96 480 81 5,500 3 11.46 N/A N/A 0 No
SWT05ED-84-84-84 116 95 134 42″ 84 84 84 343 63 4,000 3 11.66 N/A N/A 0 Yes
SWT05ED-84-96-84 120 107 133 42″ 84 96 84 392 72 4,500 3 11.48 N/A N/A 0 Yes
SWT05ED-84-120-84
122 131 134 42″ 84 120 84 490 81 5,500 3 11.22 N/A N/A 0 Yes
SWT05ED-84-120-96
122 131 151 42″ 84 120 96 560 90 7,000 5 12.50 N/A N/A 0 No
SWT05ED-96-96-96 128 107 146 48″ 96 96 96 512 81 6,000 3 11.72 N/A N/A 0 No
SWT05ED-96-120-96
132 131 145 48″ 96 120 96 640 99 8,000 5 12.50 N/A N/A 0 No
SWT05ED-96-144-96
134 155 146 48″ 96 144 96 768 108 9,000 7 1/2 11.72 N/A N/A 0 No
SWT05ED-96-168-96
134 179 151 48″ 96 168 96 896 126 12,000 7 1/2 11.16 N/A N/A 0 No
SWT05ED-96-192-96
136 203 158 48″ 96 192 96 1,024 135 12,000 7 1/2 11.72 N/A N/A 0 No
SWT05ED-96-240-96
140 251 163 48″ 96 240 96 1,280 162 16,000 10 12.50 N/A N/A 0 No
SWT05ED-96-240-120
142 299 167 48″ 96 240 120 1,600 180 18,000 15 11.25 N/A N/A 0 No
SWT05ED-96-288-96
144 347 174 48″ 96 288 96 1,536 189 18,000 15 11.72 N/A N/A 0 No
SWT05ED-96-288-120
142 251 191 48″ 96 288 120 1,920 207 22,000 15 11.46 N/A N/A 0 No
SWT05ED-96-336-96
144 299 203 48″ 96 336 96 1,792 207 22,000 15 11.16 N/A N/A 0 No
SWT05ED-96-336-120
148 347 205 48″ 96 336 120 2,240 234 26,000 15 11.61 N/A N/A 0 No
SWT05ED-120-120-96
158 131 147 60″ 120 120 96 800 108 9,000 7 1/2 11.25 N/A N/A 0 No
SWT05ED-120-120-120
160 155 156 60″ 120 120 120 1,000 135 12,000 7 1/2 12.00 N/A N/A 0 No
SWT05ED-120-144-96
162 179 158 60″ 120 144 96 960 135 12,000 7 1/2 12.50 N/A N/A 0 No
SWT05ED-120-144-120
160 131 182 60″ 120 144 120 1,200 144 14,000 10 11.67 N/A N/A 0 No
SWT05ED-120-168-96
162 155 182 60″ 120 168 96 1,120 144 14,000 10 12.50 N/A N/A 0 No
SWT05ED-120-168-120
164 179 189 60″ 120 168 120 1,400 162 16,000 10 11.43 N/A N/A 0 No
SWT05ED-120-192-96
164 203 163 60″ 120 192 96 1,280 153 16,000 10 12.50 N/A N/A 0 No
SWT05ED-120-192-120
166 251 165 60″ 120 192 120 1,600 180 18,000 15 11.25 N/A N/A 0 No
SWT05ED-120-240-96
168 299 178 60″ 120 240 96 1,600 180 18,000 15 11.25 N/A N/A 0 No
SWT05ED-120-240-120
172 347 181 60″ 120 240 120 2,000 207 24,000 15 12.00 N/A N/A 0 No
SWT05ED-120-288-96
166 203 189 60″ 120 288 96 1,920 207 22,000 15 11.46 N/A N/A 0 No
SWT05ED-120-288-120
168 251 204 60″ 120 288 120 2,400 234 28,000 15 11.67 N/A N/A 0 No
SWT05ED-120-336-96
172 299 212 60″ 120 336 96 2,240 234 26,000 15 11.61 N/A N/A 0 No
Model (NFPA Class A) Overall Dimensions Door Swing Radius Workspace Dimensions Workspace Volume (cubic ft.) Heater Bank
(kW)
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
SWT05ED-48-48-60
70 59 116 24″ 48 48 60 80 45 1,000 1 12.50 62 1/4 0.05 Yes
SWT05ED-48-48-72
70 59 128 24″ 48 48 72 96 45 1,400 1 14.58 62 1/4 0.05 Yes
SWT05ED-48-48-96
70 59 152 24″ 48 48 96 128 54 1,700 1 13.28 62 1/4 0.05 Yes
SWT05ED-60-60-60
82 71 116 30″ 60 60 60 125 45 1,400 1 11.20 62 1/4 0.05 Yes
SWT05ED-60-60-72
82 71 128 30″ 60 60 72 150 54 1,700 1 11.33 62 1/4 0.05 Yes
SWT05ED-60-60-96
82 71 153 30″ 60 60 96 200 63 2,500 2 12.50 62 1/4 0.05 Yes
SWT05ED-72-72-72
94 83 129 36″ 72 72 72 216 63 2,500 2 11.57 62 1/4 0.05 Yes
SWT05ED-72-72-96
94 83 159 36″ 72 72 96 288 72 3,500 3 12.15 62 1/4 0.05 Yes
SWT05ED-72-120-96
94 131 173 36″ 72 120 96 480 99 5,500 3 11.46 100 1/4 0.08 No
SWT05ED-84-84-84 106 95 153 42″ 84 84 84 343 90 4,000 3 11.66 100 1/4 0.08 No
SWT05ED-84-96-84 106 107 153 42″ 84 96 84 392 90 4,500 3 11.48 100 1/4 0.08 No
SWT05ED-84-120-84
106 131 161 42″ 84 120 84 490 135 5,500 3 11.22 250 1/4 0.21 No
SWT05ED-84-120-96
106 131 174 42″ 84 120 96 560 135 7,000 5 12.50 250 1/4 0.21 No
SWT05ED-96-96-96 118 107 173 48″ 96 96 96 512 135 6,000 3 11.72 250 1/4 0.21 No
SWT05ED-96-120-96
118 131 175 48″ 96 120 96 640 144 8,000 5 12.50 250 1/4 0.21 No
SWT05ED-96-144-96
118 155 176 48″ 96 144 96 768 153 9,000 7 1/2 11.72 250 1/4 0.21 No
SWT05ED-120-120-96
142 131 176 60″ 120 120 96 800 162 9,000 7 1/2 11.25 250 1/4 0.21 No
SWT05ED-120-120-120
142 131 210 60″ 120 120 120 1,000 171 12,000 7 1/2 12.00 250 1/4 0.21 No
SWT05ED-120-144-96
142 155 186 60″ 120 144 96 960 171 12,000 7 1/2 12.50 250 1/4 0.21 No
SWT05ED-120-144-120
142 155 211 60″ 120 144 120 1,200 189 14,000 10 11.67 250 1/4 0.21 No
SWT05ED-120-168-96
142 179 187 60″ 120 168 96 1,120 180 14,000 10 12.50 250 1/4 0.21 No
SWT05ED-120-168-120
142 179 217 60″ 120 168 120 1,400 207 16,000 10 11.43 500 1 0.42 No
SWT05ED-120-192-96
142 203 193 60″ 120 192 96 1,280 198 16,000 10 12.50 500 1 0.42 No
SWT05ED-120-192-120
142 203 218 60″ 120 192 120 1,600 234 18,000 15 11.25 1,000 1 1/2 0.65 No
SWT05ED-120-240-96
142 251 194 60″ 120 240 96 1,600 261 18,000 15 11.25 1,000 1 1/2 0.65 No
SWT05ED-120-240-120
142 251 231 60″ 120 240 120 2,000 288 24,000 15 12.00 1,000 1 1/2 0.65 No
SWT05ED-120-288-96
142 299 206 60″ 120 288 96 2,400 288 22,000 15 11.46 1,000 1 1/2 0.65 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 include a 12 gauge steel plate floor.

     Standard Options:

  • 12 gauge plate floor with (1) pair inverted angle track
  • 12 gauge plate floor with (1) pair 6” wide wheel guides
  • Insulated (100 p.s.f. max)
  • Insulated with (1) pair inverted angle track
  • Insulated with (1) pair 6” wide wheel guides
  • No floor

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 maximum solvent loading.
  • Explosion relief of adequate area determined by oven or furnace workspace volume.

Industry Standards