The online configurator is intended to allow users to configure the oven and options they need, which speeds up the RFQ process. Note: The configurator does not generate pricing.
LEWCO Composite Curing Batch Ovens are designed to meet the strict requirements of the aerospace and advanced materials industries. These composite curing ovens guarantee temperature uniformity of +/- 10°F and includes standard equipment for vacuum assisted composite curing. This model features a top-mounted heater box, which creates a smaller footprint and permits pass-through processing. Each unit comes complete with a one-year warranty and is fully assembled, wired, and tested prior to shipment. All LEWCO ovens are manufactured to meet the requirements of NFPA 86, the national standard for ovens and furnaces
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
Horizontal Airflow: Hot air is supplied from one side of the wall and pulled across horizontally to the opposite side wall.
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:
Optional Controls
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
EWT03EH-48-48-60
74
59
89
34″
48
48
60
80
36
1,700
1
21.25
N/A
N/A
0
Yes
EWT03EH-48-48-72
76
59
102
34″
48
48
72
96
36
2,000
1 1/2
20.83
N/A
N/A
0
Yes
EWT03EH-48-48-96
76
59
126
34″
48
48
96
128
45
2,500
2
19.53
N/A
N/A
0
Yes
EWT03EH-48-72-72
76
83
107
34″
48
72
72
144
45
3,000
2
20.83
N/A
N/A
0
Yes
EWT03EH-48-72-96
78
83
138
34″
48
72
96
192
45
4,000
3
20.83
N/A
N/A
0
Yes
EWT03EH-48-96-72
78
107
114
34″
48
96
72
192
45
4,000
3
20.83
N/A
N/A
0
Yes
EWT03EH-48-96-96
80
107
139
34″
48
96
96
256
54
5,000
3
19.53
N/A
N/A
0
Yes
EWT03EH-60-60-60
88
71
90
40″
60
60
60
125
45
2,500
2
20.00
N/A
N/A
0
Yes
EWT03EH-60-60-72
88
71
107
40″
60
60
72
150
45
3,000
2
20.00
N/A
N/A
0
Yes
EWT03EH-60-60-96
90
71
138
40″
60
60
96
200
45
4,000
3
20.00
N/A
N/A
0
Yes
EWT03EH-60-72-72
90
83
108
40″
60
72
72
180
45
3,500
3
19.44
N/A
N/A
0
Yes
EWT03EH-60-72-96
90
83
138
40″
60
72
96
240
54
4,500
3
18.75
N/A
N/A
0
Yes
EWT03EH-60-96-96
92
107
146
40″
60
96
96
320
54
6,000
3
18.75
N/A
N/A
0
No
EWT03EH-72-72-72
102
83
114
46″
72
72
72
216
45
4,000
3
18.52
N/A
N/A
0
Yes
EWT03EH-72-72-96
104
83
146
46″
72
72
96
288
54
5,500
3
19.10
N/A
N/A
0
No
EWT03EH-72-96-96
108
107
148
46″
72
96
96
384
63
8,000
5
20.83
N/A
N/A
0
No
EWT03EH-72-120-96
110
131
149
46″
72
120
96
480
72
9,000
7 1/2
18.75
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
EWT03EH-48-48-60
74
59
116
34″
48
48
60
80
36
1,700
1
21.25
62
1/4
0.06
Yes
EWT03EH-48-48-72
76
59
102
34″
48
48
72
96
45
2,000
1 1/2
20.83
62
1/4
0.06
Yes
EWT03EH-48-48-96
76
59
153
34″
48
48
96
128
45
2,500
2
19.53
62
1/4
0.06
No
EWT03EH-48-72-72
76
83
134
34″
48
72
72
144
45
3,000
2
20.83
62
1/4
0.06
Yes
EWT03EH-48-72-96
78
83
165
34″
48
72
96
192
54
4,000
3
20.83
62
1/4
0.06
No
EWT03EH-48-96-72
78
107
141
34″
48
96
72
192
54
4,000
3
20.83
62
1/4
0.06
Yes
EWT03EH-48-96-96
80
107
166
34″
48
96
96
256
54
5,000
3
19.53
62
1/4
0.06
No
EWT03EH-60-60-60
88
71
117
40″
60
60
60
125
45
2,500
2
20.00
62
1/4
0.06
Yes
EWT03EH-60-60-72
88
71
134
40″
60
60
72
150
45
3,000
2
20.00
62
1/4
0.06
Yes
EWT03EH-60-60-96
90
71
165
40″
60
60
96
200
54
4,000
3
20.00
62
1/4
0.06
No
EWT03EH-60-72-72
90
83
135
40″
60
72
72
180
54
3,500
3
19.44
62
1/4
0.06
Yes
EWT03EH-60-72-96
90
83
165
40″
60
72
96
240
54
4,500
3
18.75
62
1/4
0.06
No
EWT03EH-60-96-96
92
107
173
40″
60
96
96
320
63
6,000
3
18.75
100
1/4
0.10
No
EWT03EH-72-72-72
102
83
141
46″
72
72
72
216
54
4,000
3
18.52
62
1/4
0.06
Yes
EWT03EH-72-72-96
104
83
173
46″
72
72
96
288
63
5,500
3
19.10
62
1/4
0.06
No
EWT03EH-72-96-96
108
107
175
46″
72
96
96
384
72
8,000
5
20.83
100
1/4
0.10
No
EWT03EH-72-120-96
110
131
176
46″
72
120
96
480
72
9,000
7 1/2
18.75
100
1/4
0.10
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.Door N Floor 3
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.
Airflow Pattern
