Model: EWR03ED – Composite Curing Oven

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Operating Temperature 

150°F (66°C) to 350°F (177°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.

Standard Composite Curing Equipment

  • Thermocouple jacks
  • Vacuum ports
  • Vacuum pump

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.

Zero Speed Switch for Fans
Minimizes nuisance tripping associated with standard air flow switch(es).

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.

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
EWR03ED-48-48-60
 79 106 72 24″ 48 48 60 80 36 1,700 1 21.25 N/A N/A 0 Yes
EWR03ED-48-48-72
 81 106 84 24″ 48 48 72 96 36 2,000 1 1/2 20.83 N/A N/A 0 Yes
EWR03ED-48-48-96
 83 106 108 24″ 48 48 96 128 45 2,500 2 19.53 N/A N/A 0 Yes
EWR03ED-48-72-72
 83 134 84 24″ 48 72 72 144 45 3,000 2 20.83 N/A N/A 0 Yes
EWR03ED-48-72-96
 85 140 108 24″ 48 72 96 192 45 4,000 3 20.83 N/A N/A 0 Yes
EWR03ED-48-96-72 85 164 84 24″ 48 96 72 192 45 4,000 3 20.83 N/A N/A 0 Yes
EWR03ED-48-96-96 89 168 108 24″ 48 96 96 256 54 5,000 3 19.53 N/A N/A 0 Yes
EWR03ED-60-60-60
 95 118 72 30″ 60 60 60 125 45 2,500 2 20.00 N/A N/A 0 Yes
EWR03ED-60-60-72 95 122 84 30″ 60 60 72 150 45 3,000 2 20.00 N/A N/A 0 Yes
EWR03ED-60-60-96 97 128 108 30″ 60 60 96 200 45 4,000 3 20.00 N/A N/A 0 Yes
EWR03ED-60-72-72 97 134 84 30″ 60 72 72 180 45 3,500 3 19.44 N/A N/A 0 Yes
EWR03ED-60-72-96 99 144 108 30″ 60 72 96 240 54 4,500 3 18.75 N/A N/A 0 Yes
EWR03ED-60-96-96 103 174 108 30″ 60 96 96 320 54 6,000 3 18.75 N/A N/A 0 Yes
EWR03ED-72-72-72
 109 140 84 36″ 72 72 72 216 45 4,000 3 18.52 N/A N/A 0 Yes
EWR03ED-72-72-96 113 150 108 36″ 72 72 96 288 54 5,500 3 19.10 N/A N/A 0 Yes
EWR03ED-72-96-96 121 174 108 36″ 72 96 96 384 63 8,000 5 20.83 N/A N/A 0 Yes
EWR03ED-72-120-96
 125 198 108 36″ 72 120 96 480 72 9,000 7 1/2 18.75 N/A N/A 0 Yes
EWR03ED-84-84-84 129 162 96 42″ 84 84 84 343 63 7,000 5 20.41 N/A N/A 0 Yes
EWR03ED-84-96-84 133 174 96 42″ 84 96 84 392 63 8,000 5 20.41 N/A N/A 0 Yes
EWR03ED-84-120-84
 137 205 96 42″ 84 120 84 490 72 10,000 7 1/2 20.41 N/A N/A 0 Yes
EWR03ED-84-120-96
 141 210 108 42″ 84 120 96 560 72 12,000 7 1/2 21.43 N/A N/A 0 Yes
EWR03ED-96-96-96 149 181 108 48″ 96 96 96 512 72 10,000 7 1/2 19.53 N/A N/A 0 Yes
EWR03ED-96-120-96
 153 210 108 48″ 96 120 96 640 81 12,000 7 1/2 18.75 N/A N/A 0 Yes
EWR03ED-96-144-96
 161 243 108 48″ 96 144 96 768 90 16,000 10 20.83 N/A N/A 0 Yes
EWR03ED-96-168-96
 167 267 108 48″ 96 168 96 896 99 18,000 15 20.09 N/A N/A 0 Yes
EWR03ED-120-120-96
 185 219 108 60″ 120 120 96 800 90 16,000 10 20.00 N/A N/A 0 Yes
EWR03ED-120-120-120
 193 224 132 60″ 120 120 120 1,000 99 20,000 15 20.00 N/A N/A 0 Yes
EWR03ED-120-144-96
 191 243 108 60″ 120 144 96 960 99 18,000 15 18.75 N/A N/A 0 Yes
EWR03ED-120-144-120
 197 255 132 60″ 120 144 120 1,200 108 24,000 15 20.00 N/A N/A 0 Yes
EWR03ED-120-168-96
 193 279 108 60″ 120 168 96 1,120 108 22,000 15 19.64 N/A N/A 0 Yes
EWR03ED-120-168-120
 203 279 132 60″ 120 168 120 1,400 117 26,000 15 18.57 N/A N/A 0 Yes
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
EWR03ED-48-48-60
 79 106 123 24″ 48 48 60 80 36 1,700 1 21.25 62 1/4 0.06 Yes
EWR03ED-48-48-72
 81 106 135 24″ 48 48 72 96 45 2,000 1 1/2 20.83 62 1/4 0.06 Yes
EWR03ED-48-48-96
 83 106 159 24″ 48 48 96 128 45 2,500 2 19.53 62 1/4 0.06 No
EWR03ED-48-72-72
 83 134 135 24″ 48 72 72 144 45 3,000 2 20.83 62 1/4 0.06 Yes
EWR03ED-48-72-96
 85 140 159 24″ 48 72 96 192 54 4,000 3 20.83 62 1/4 0.06 No
EWR03ED-48-96-72 85 164 135 24″ 48 96 72 192 54 4,000 3 20.83 62 1/4 0.06 Yes
EWR03ED-48-96-96 89 168 159 24″ 48 96 96 256 54 5,000 3 19.53 62 1/4 0.06 No
EWR03ED-60-60-60
 95 118 123 30″ 60 60 60 125 45 2,500 2 20.00 62 1/4 0.06 Yes
EWR03ED-60-60-72 95 122 135 30″ 60 60 72 150 45 3,000 2 20.00 62 1/4 0.06 Yes
EWR03ED-60-60-96 97 128 159 30″ 60 60 96 200 54 4,000 3 20.00 62 1/4 0.06 No
EWR03ED-60-72-72 97 134 135 30″ 60 72 72 180 54 3,500 3 19.44 62 1/4 0.06 Yes
EWR03ED-60-72-96 99 144 159 30″ 60 72 96 240 54 4,500 3 18.75 62 1/4 0.06 No
EWR03ED-60-96-96 103 174 159 30″ 60 96 96 320 63 6,000 3 18.75 100 1/4 0.10 No
EWR03ED-72-72-72
 109 140 135 36″ 72 72 72 216 54 4,000 3 18.52 62 1/4 0.06 Yes
EWR03ED-72-72-96 113 150 159 36″ 72 72 96 288 63 5,500 3 19.10 62 1/4 0.06 No
EWR03ED-72-96-96 121 174 159 36″ 72 96 96 384 72 8,000 5 20.83 100 1/4 0.10 No
EWR03ED-72-120-96
 125 198 159 36″ 72 120 96 480 72 9,000 7 1/2 18.75 100 1/4 0.10 No
EWR03ED-84-84-84 129 162 147 42″ 84 84 84 343 63 7,000 5 20.41 100 1/4 0.10 No
EWR03ED-84-96-84 133 174 147 42″ 84 96 84 392 72 8,000 5 20.41 100 1/4 0.10 No
EWR03ED-84-120-84
 137 205 147 42″ 84 120 84 490 90 10,000 7 1/2 20.41 250 1/4 0.25 No
EWR03ED-84-120-96
 141 210 159 42″ 84 120 96 560 90 12,000 7 1/2 21.43 250 1/4 0.25 No
EWR03ED-96-96-96 149 181 159 48″ 96 96 96 512 90 10,000 7 1/2 19.53 250 1/4 0.25 No
EWR03ED-96-120-96
 153 210 159 48″ 96 120 96 640 99 12,000 7 1/2 18.75 250 1/4 0.25 No
EWR03ED-96-144-96
 161 243 159 48″ 96 144 96 768 99 16,000 10 20.83 250 1/4 0.25 No
EWR03ED-96-168-96
 167 267 159 48″ 96 168 96 896 108 18,000 15 20.09 250 1/4 0.25 No
EWR03ED-120-120-96
 185 219 159 60″ 120 120 96 800 108 16,000 10 20.00 250 1/4 0.25 No
EWR03ED-120-120-120
 193 224 183 60″ 120 120 120 1,000 117 20,000 15 20.00 250 1/4 0.25 No
EWR03ED-120-144-96
 191 243 159 60″ 120 144 96 960 117 18,000 15 18.75 250 1/4 0.25 No
EWR03ED-120-144-120
 197 255 183 60″ 120 144 120 1,200 144 24,000 15 20.00 250 1/4 0.25 No
EWR03ED-120-168-96
 193 279 159 60″ 120 168 96 1,120 144 22,000 15 19.64 250 1/4 0.25 No
EWR03ED-120-168-120
 203 279 183 60″ 120 168 120 1,400 171 26,000 15 18.57 750 1 0.51 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:

  • Vertical lift guillotine door
  • 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