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LEWCO Inc.
INDUSTRIAL OVENS

 

SWT05ED - Walk-In Oven 

LEWCO Normal Duty Batch Ovens offer high quality at economical prices. The SWT series features a top mounted heater box, which creates a smaller foot print and permits pass-through processing. Heavy-duty construction and industry standard components yield durable and reliable equipment. 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 industrial ovens and furnaces.

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

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 PatternDual Airflow Diagram Product Page

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: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.

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.

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. 

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 DimensionsDoor Swing RadiusWorkspace DimensionsWorkspace Volume (cubic ft.)Heater Bank
(kW)
Circulating Fan
(CFM)
Motor
(HP)
Air Changes per MinuteExhaust Fan Capacity (CFM)Exhaust Motor (HP)Solvents per Batch
(Gals.)
Ships Fully Assembled
"W"D"H"W"D"H
SWT05ED-48-48-60
78599124"4848608036 1,000 112.50N/AN/A0Yes
SWT05ED-48-48-72
785910324"4848729636 1,400 114.58N/AN/A0Yes
SWT05ED-48-48-96
785912724"48489612845 1,700 113.28N/AN/A0Yes
SWT05ED-60-60-60
90719130"60606012536 1,400 111.20N/AN/A0Yes
SWT05ED-60-60-72
907110330"60607215045 1,700 111.33N/AN/A0Yes
SWT05ED-60-60-96
907112730"60609620054 2,500 212.50N/AN/A0Yes
SWT05ED-72-72-72
1028310336"72727221654 2,500 211.57N/AN/A0Yes
SWT05ED-72-72-96
1028313236"72729628863 3,500 312.15N/AN/A0Yes
SWT05ED-72-120-96
10413114536"721209648081 5,500 311.46N/AN/A0No
SWT05ED-84-84-841169513442"84848434363 4,000 311.66N/AN/A0Yes
SWT05ED-84-96-8412010713342"84968439272 4,500 311.48N/AN/A0Yes
SWT05ED-84-120-84
12213113442"841208449081 5,500 311.22N/AN/A0Yes
SWT05ED-84-120-96
12213115142"841209656090 7,000 512.50N/AN/A0No
SWT05ED-96-96-9612810714648"96969651281 6,000 311.72N/AN/A0No
SWT05ED-96-120-96
13213114548"961209664099 8,000 512.50N/AN/A0No
SWT05ED-96-144-96
13415514648"9614496768108 9,000 7 1/211.72N/AN/A0No
SWT05ED-96-168-96
13417915148"9616896896126 12,000 7 1/211.16N/AN/A0No
SWT05ED-96-192-96
13620315848"96192961,024135 12,000 7 1/211.72N/AN/A0No
SWT05ED-96-240-96
14025116348"96240961,280162 16,000 1012.50N/AN/A0No
SWT05ED-96-240-120
14229916748"962401201,600180 18,000 1511.25N/AN/A0No
SWT05ED-96-288-96
14434717448"96288961,536189 18,000 1511.72N/AN/A0No
SWT05ED-96-288-120
14225119148"962881201,920207 22,000 1511.46N/AN/A0No
SWT05ED-96-336-96
14429920348"96336961,792207 22,000 1511.16N/AN/A0No
SWT05ED-96-336-120
14834720548"963361202,240234 26,000 1511.61N/AN/A0No
SWT05ED-120-120-96
15813114760"12012096800108 9,000 7 1/211.25N/AN/A0No
SWT05ED-120-120-120
16015515660"1201201201,000135 12,000 7 1/212.00N/AN/A0No
SWT05ED-120-144-96
16217915860"12014496960135 12,000 7 1/212.50N/AN/A0No
SWT05ED-120-144-120
16013118260"1201441201,200144 14,000 1011.67N/AN/A0No
SWT05ED-120-168-96
16215518260"120168961,120144 14,000 1012.50N/AN/A0No
SWT05ED-120-168-120
16417918960"1201681201,400162 16,000 1011.43N/AN/A0No
SWT05ED-120-192-96
16420316360"120192961,280153 16,000 1012.50N/AN/A0No
SWT05ED-120-192-120
16625116560"1201921201,600180 18,000 1511.25N/AN/A0No
SWT05ED-120-240-96
16829917860"120240961,600180 18,000 1511.25N/AN/A0No
SWT05ED-120-240-120
17234718160"1202401202,000207 24,000 1512.00N/AN/A0No
SWT05ED-120-288-96
16620318960"120288961,920207 22,000 1511.46N/AN/A0No
SWT05ED-120-288-120
16825120460"1202881202,400234 28,000 1511.67N/AN/A0No
SWT05ED-120-336-96
17229921260"120336962,240234 26,000 1511.61N/AN/A0No
Model (NFPA Class A)Overall DimensionsDoor Swing RadiusWorkspace DimensionsWorkspace Volume (cubic ft.)Heater Bank
(kW)
Circulating Fan
(CFM)
Motor
(HP)
Air Changes per MinuteExhaust Fan Capacity (CFM)Exhaust Motor (HP)Solvents per Batch
(Gals.)
Ships Fully Assembled
"W"D"H"W"D"H
SWR05ED-48-48-60
7710612324"48486080451,000112.50621/40.05Yes
SWR05ED-48-48-72
7710613524"48487296451,400114.58621/40.05Yes
SWR05ED-48-48-96
7910615924"484896128541,700113.28621/40.05Yes
SWR05ED-48-72-72
7913013524"487272144541,700111.81621/40.05Yes
SWR05ED-48-72-96
8313015924"487296192542,500213.02621/40.05Yes
SWR05ED-48-96-728315413524"489672192542,500213.02621/40.05Yes
SWR05ED-48-96-968315815924"489696256633,000211.72621/40.05Yes
SWR05ED-60-60-60
8911812330"606060125451,400111.20621/40.05Yes
SWR05ED-60-60-729111813530"606072150541,700111.33621/40.05Yes
SWR05ED-60-60-969511815930"606096200632,500212.50621/40.05Yes
SWR05ED-60-72-729513013530"607272180542,500213.89621/40.05Yes
SWR05ED-60-72-969513415930"607296240633,000212.50621/40.05Yes
SWR05ED-60-96-969716415930"609696320814,000312.501001/40.08Yes
SWR05ED-72-72-72
10713013536"727272216632,500211.57621/40.05Yes
SWR05ED-72-72-9610913415936"727296288723,500312.15621/40.05Yes
SWR05ED-72-96-9611116815936"729696384904,500311.721001/40.08Yes
SWR05ED-72-120-96
11319815936"7212096480995,500311.461001/40.08Yes
SWR05ED-84-84-8412115214742"848484343904,000311.661001/40.08Yes
SWR05ED-84-96-8412316814742"849684392904,500311.481001/40.08Yes
SWR05ED-84-120-84
12519814742"84120844901355,500311.222501/40.21Yes
SWR05ED-84-120-96
12919815942"84120965601357,000512.502501/40.21Yes
SWR05ED-96-96-9613917415948"9696965121356,000311.722501/40.21Yes
SWR05ED-96-120-96
14519815948"96120966401448,000512.502501/40.21Yes
SWR05ED-96-144-96
14922215948"96144967681539,0007 1/211.722501/40.21Yes
SWR05ED-96-168-96
15325815948"961689689617112,0007 1/213.392501/40.21Yes
SWR05ED-120-120-96
17319815960"120120968001629,0007 1/211.252501/40.21Yes
SWR05ED-120-120-120
17721018360"1201201201,00017112,0007 1/212.002501/40.21Yes
SWR05ED-120-144-96
17723415960"1201449696017112,0007 1/212.502501/40.21Yes
SWR05ED-120-144-120
18323418360"1201441201,20018914,0001011.662501/40.21Yes
SWR05ED-120-168-96
18325815960"120168961,12018014,0001012.502501/40.21Yes
SWR05ED-120-168-120
18526718360"1201681201,40020716,0001011.4350010.42Yes

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

 

Industry Standards Industry Standards Logos For Web 2