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EWR06EH - Composite Curing Oven 

LEWCO Composite Curing Batch Ovens are designed to meet the strict requirements of 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 rear mounted heater box, which is ideal for installations with height restrictions. 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. 

  • Cost-Effective
  • Dependable
  • Energy Efficient
  • Quality Built
  • Safe Operation
ISO 9001:2008 Registered Company

Operating Temperature 

200°F (93°C) to 650°F (343°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 PatternHoriz Airflow Diagram Product Page

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 composite curing control package includes a multiple recipe ramp/soak temperature controller, redundant high-limit controller, and multiple input data logger, which continuously records temperature and other process data. The data logger allows downloading of digital data files through USB or Ethernet connection. 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. Complete system complies with AMS2750E standards.

     Optional:NS Controls For Product Page

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).


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 DimensionsDoor Swing RadiusWorkspace DimensionsHeater Bank
Circulating Fan
Air Changes per MinuteExhaust Fan Capacity (CFM)Exhaust Motor (HP)Solvents per Batch
Ships Fully Assembled
EWR06EH-48-48-60831077324"48486045 2,000 1 1/225.00N/AN/A0Yes
EWR06EH-48-48-72851078524"48487254 2,500 226.04N/AN/A0Yes
8511110924"48489663 3,000 327.34N/AN/A0Yes
EWR06EH-48-72-72871418524"48727263 4,000 327.78N/AN/A0Yes
9114510924"48729672 5,000 326.04N/AN/A0Yes
EWR06EH-48-96-72911698524"48967272 5,000 326.04N/AN/A0Yes
EWR06EH-48-96-969517510924"48969681 7,000 527.34N/AN/A0Yes
EWR06EH-60-60-60991237330"60606054 3,500 328.00N/AN/A0Yes
EWR06EH-60-60-72991298530"60607263 4,000 326.67N/AN/A0Yes
EWR06EH-60-60-9610313310930"60609672 5,000 325.00N/AN/A0Yes
EWR06EH-60-72-721011458530"60727263 4,500 325.00N/AN/A0Yes
EWR06EH-60-72-9610515110930"60729681 6,000 325.00N/AN/A0Yes
EWR06EH-60-96-9611117510930"60969690 8,000 525.00N/AN/A0Yes
EWR06EH-72-72-721151518536"72727272 5,500 325.46N/AN/A0Yes
EWR06EH-72-72-9612315110936"72729681 8,000 527.78N/AN/A0Yes
EWR06EH-72-96-9612718210936"72969681 10,000 7 1/226.04N/AN/A0Yes
13121110936"7212096108 12,000 7 1/225.00N/AN/A0Yes
Model (NFPA Class A)Overall DimensionsDoor Swing RadiusWorkspace DimensionsHeater Bank
Circulating Fan
Air Changes per MinuteExhaust Fan Capacity (CFM)Exhaust Motor (HP)Solvents per Batch
Ships Fully Assembled
EWR06EH-48-48-608310712424"48486054 2,000 1 1/225.00621/40.04Yes
EWR06EH-48-48-728510713624"48487263 2,500 226.04621/40.04Yes
8511116024"48489672 3,000 327.34621/40.04No
EWR06EH-48-72-728714113624"48727272 4,000 327.78621/40.04Yes
9114516024"48729681 5,000 326.04621/40.04No
EWR06EH-48-96-729116913624"48967281 5,000 326.04621/40.04Yes
EWR06EH-48-96-969517516024"48969690 7,000 527.34621/40.04Yes
EWR06EH-60-60-609912312430"60606063 3,500 328.00621/40.04No
EWR06EH-60-60-729912913630"60607272 4,000 326.67621/40.04Yes
EWR06EH-60-60-9610313316030"60609681 5,000 325.00621/40.04No
EWR06EH-60-72-7210114513630"60727272 4,500 325.00621/40.04Yes
EWR06EH-60-72-9610515116030"60729690 6,000 325.00621/40.04No
EWR06EH-60-96-9611117516030"609696117 8,000 525.001001/40.07No
EWR06EH-72-72-7211515113636"72727281 5,500 325.46621/40.04Yes
EWR06EH-72-72-9612315116036"72729690 8,000 527.78621/40.04No
EWR06EH-72-96-9612718216036"729696117 10,000 7 1/226.041001/40.07No
13121116036"7212096153 12,000 7 1/225.001001/40.07No

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.



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:

  • Vertical lift guillotine door 
  • Door windows



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


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