Finned Strip

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  • Low-profile heat-dissipating design
  • Highly efficient
  • Some versions suitable for use to 1200 °F (649 C)
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Finned Strip Heaters are manufactured with the same one-piece welded construction as our standard Strip Heaters except that heat-dissipating fins are added to the outer sheath. The fins are specially designed and mechanically attached to provide efficient heating in many air or gas process heating applications. Lengths are available up to 10 feet. Construction is Underwriters Labs Recognized, and certified for use in Canada.

  • Stainless sheath models are suitable for operating temperatures to 1200 °F (649 C)
  • Premium grade ceramic and magnesium oxide insulation
  • High temperature alloy resistance wire
  • Low profile design – fins measure 2″ x 1 3/8″
  • Several standard #10-32 screw and nut terminations
  • Convenient 5/16″ x 1/2″ mounting holes at each end
  • Many catalog wattage, voltage, and length combinations
  • Special enclosure models with standoff brackets are available
  • Standard and custom options available
  • Process Air Heating
  • Drying Cabinets and Equipment
  • Comfort Heating
  • Shrink Tunnels
  • Humidity Control
  • Resistive Load Banks

Models and Options

* All units also available with:

Parallel Terminals (Type PTF)
Tandem Terminals (Type TDF)
Terminal Each End (Type EEF)

Finned Strip Heaters – Type OSF13 – Offset Terminals

120 Volt Model Numbers240 Volt Model NumbersOverall Length (in.)Overall Length (mm)WattsWatt Density
w/sq. in.
Approx Weight (lbs)Approx Weight (kg)
OSF1310-250AOSF1310-250B10 1/2266.7250111.90.8
OSF1310-350AOSF1310-350B10 1/2266.7350161.90.8
OSF1310-500AOSF1310-500B10 1/2266.7500231.90.8
OSF1310-600AOSF1310-600B10 1/2266.7600281.90.8
OSF1312-250AOSF1312-250B12304.825092.21
OSF1312-500AOSF1312-500B12304.8500182.21
OSF1312-650AOSF1312-650B12304.8650242.21
OSF1312-750AOSF1312-750B12304.8750282.21
OSF1314-500AOSF1314-500B14355.6500152.61.1
OSF1314-750AOSF1314-750B14355.6750222.61.1
OSF1314-900AOSF1314-900B14355.6900262.61.1
OSF1315-325AOSF1315-325B15 1/4387.432582.81.2
OSF1315-850AOSF1315-850B15 1/4387.4850222.81.2
OSF1315-1000AOSF1315-1000B15 1/4387.41000262.81.2
OSF1317-500AOSF1317-500B17 7/8454500103.31.4
OSF1317-1000AOSF1317-1000B17 7/84541000213.31.4
OSF1317-1150AOSF1317-1150B17 7/84541150243.31.4
OSF1317-1300AOSF1317-1300B17 7/84541300273.31.4
OSF1319-1000AOSF1319-1000B19 1/2495.31000183.61.6
OSF1319-1250AOSF1319-1250B19 1/2495.31250233.61.6
OSF1319-1500AOSF1319-1500B19 1/2495.31500283.61.6
OSF1321-1000AOSF1321-1000B21533.41000173.81.7
OSF1321-1400AOSF1321-1400B21533.41400233.81.7
OSF1321-1550AOSF1321-1550B21533.41550263.81.7
OSF1323-750AOSF1323-750B23 3/4603.3750114.31.9
OSF1323-1000AOSF1323-1000B23 3/4603.31000144.31.9
OSF1323-1600AOSF1323-1600B23 3/4603.31600234.31.9
OSF1323-1800AOSF1323-1800B23 3/4603.31800264.31.9
OSF1325-1250AOSF1325-1250B25 1/2647.71250164.72
OSF1325-1800AOSF1325-1800B25 1/2647.71800244.72
OSF1325-2000AOSF1325-2000B25 1/2647.72000264.72
OSF1326-700AOSF1326-700B26 3/4679.570094.92.1
OSF1326-1350AOSF1326-1350B26 3/4679.51350174.92.1
OSF1326-1900AOSF1326-1900B26 3/4679.51900244.92.1
OSF1326-2000AOSF1326-2000B26 3/4679.52000254.92.1
OSF1330-1500AOSF1330-1500B30 1/2774.71500165.62.4
OSF1330-2100AOSF1330-2100B30 1/2774.72100225.62.4
OSF1330-2350AOSF1330-2350B30 1/2774.72350255.62.4
OSF1333-2450AOSF1333-2450B33 1/2850.92450236.12.7
OSF1335-1000AOSF1335-1000B35 7/8911.2100096.62.9
OSF1335-1800AOSF1335-1800B35 7/8911.21800166.62.9
OSF1335-2600AOSF1335-2600B35 7/8911.22600236.62.9
OSF1335-2850AOSF1335-2850B35 7/8911.22850256.62.9
OSF1338-2000AOSF1338-2000B38 1/2977.920001673.1
OSF1338-2800AOSF1338-2800B38 1/2977.928002373.1
OSF1338-3100AOSF1338-3100B38 1/2977.931002573.1
OSF1342-3250AOSF1342-3250B42 1/21079.53250247.83.4
OSF1342-3450AOSF1342-3450B42 1/21079.53450257.83.4

* All units also available with:

Parallel Terminals (Type PTF)
Tandem Terminals (Type TDF)
Terminal Each End (Type EEF)

Finned Strip Heaters – Type OSF15 – Offset Terminals

120 Volt Model Numbers240 Volt Model NumbersOverall Length (in.)Overall Length (mm)WattsWatt Density
w/sq. in.
Approx Weight (lbs)Approx Weight (kg)
OSF1510-350AOSF1510-350B10 1/2266.7350161.90.8
OSF1510-475AOSF1510-475B10 1/2266.7475221.90.8
OSF1510-725AOSF1510-725B10 1/2266.7725331.90.8
OSF1512-400AOSF1512-400B12304.8400152.20.9
OSF1512-700AOSF1512-700B12304.8700262.20.9
OSF1512-900AOSF1512-900B12304.8900332.20.9
OSF1514-500AOSF1514-500B14355.6500152.51.1
OSF1514-750AOSF1514-750B14355.6750222.51.1
OSF1514-1100AOSF1514-1100B14355.61100322.51.1
OSF1515-600AOSF1515-600B15 1/4387.4600152.71.2
OSF1515-850AOSF1515-850B15 1/4387.4850222.71.2
OSF1515-1250AOSF1515-1250B15 1/4387.41250322.71.2
OSF1517-750AOSF1517-750B17 7/8454750153.21.4
OSF1517-1000AOSF1517-1000B17 7/84541000213.21.4
OSF1517-1550AOSF1517-1550B17 7/84541550323.21.4
OSF1519-1000AOSF1519-1000B19 1/2495.31000183.51.5
OSF1519-1250AOSF1519-1250B19 1/2495.31250233.51.5
OSF1519-1700AOSF1519-1700B19 1/2495.31700313.51.5
OSF1521-750AOSF1521-750B21533.4750133.81.6
OSF1521-1250AOSF1521-1250B21533.41250213.81.6
OSF1521-1900AOSF1521-1900B21533.41900323.81.6
OSF1523-1000AOSF1523-1000B23 3/4603.31000144.31.9
OSF1523-1450AOSF1523-1450B23 3/4603.31450214.31.9
OSF1523-2200AOSF1523-2200B23 3/4603.32200324.31.9
OSF1525-1000AOSF1525-1000B25 1/2647.71000134.62
OSF1525-1500AOSF1525-1500B25 1/2647.71500204.62
OSF1525-2400AOSF1525-2400B25 1/2647.72400324.62
OSF1526-1100AOSF1526-1100B26 3/4679.51100144.82.1
OSF1526-1600AOSF1526-1600B26 3/4679.51600204.82.1
OSF1526-2500AOSF1526-2500B26 3/4679.52500314.82.1
OSF1530-1800AOSF1530-1800B30 1/2774.71800195.52.4
OSF1530-2800AOSF1530-2800B30 1/2774.72800305.52.4
OSF1533-2100AOSF1533-2100B33 1/2850.921002062.6
OSF1533-3150AOSF1533-3150B33 1/2850.931503062.6
OSF1535-1500AOSF1535-1500B35 7/8911.21500136.52.8
OSF1535-2300AOSF1535-2300B35 7/8911.22300206.52.8
OSF1535-3450AOSF1535-3450B35 7/8911.23450306.52.8
OSF1538-2450AOSF1538-2450B38 1/2977.92450206.93
OSF1538-3700AOSF1538-3700B38 1/2977.93700306.93
OSF1542-2650AOSF1542-2650B42 1/21079.52650197.73.3
OSF1542-4150AOSF1542-4150B42 1/21079.54150307.73.3
OSF1548-2250AOSF1548-2250B481219.22250148.63.8
OSF1335-2850AOSF1335-2850B35 7/8911.22850256.62.9
OSF1338-2000AOSF1338-2000B38 1/2977.920001673.1
OSF1338-2800AOSF1338-2800B38 1/2977.928002373.1
OSF1338-3100AOSF1338-3100B38 1/2977.931002573.1
OSF1342-3250AOSF1342-3250B42 1/21079.53250247.83.4
OSF1342-3450AOSF1342-3450B42 1/21079.53450257.83.4

 

OPTIONS FOR VULCAN STRIP AND FINNED STRIP HEATERS

Option Code Description (Click for Picture)
F Metal Terminal Box See Picture
G Pressed Ends – No Mounting Tabs See Picture
H Squared Ends – No Mounting Tabs See Picture
J Ceramic Secondary Insulating Bushings (Requires larger mounting tab slots) See Picture
S Moisture Resistant Construction See Picture
LE Leads out End See Picture
PR Potted Right Angle Leads See Picture
FR Flex Conduit over Right Angle Leads See Picture
BR Stainless Braid over Right Angle Leads See Picture
MB Mounting Bracket See Picture
WX Special Wattage
VX Special Voltage
HX Special Heater Length
AF Stainless Steel Fins
TX Terminals attached to leads
MH Multiple Heat
WD Special Wattage Distribution
GT Threaded Ground Terminal (welded to sheath)

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