HOTWATT INC
176Pages

Hotwatt, established in 1952, began with the manufacturing of one product, the open coil heating element. Since then Hotwatt has expanded our product line to include cartridge, air process, immersion, strip and finned strip, tubular and finned tubular, band, foil, flexible glasrope® and ceramic heaters. We are dedicated to the design and manufacturing of resistance heating elements for a variety of OEM and industrial applications. In addition, we can supply compatible accessory items which enable us to offer a complete heater system. Email: sales@hotwatt.com

Cartridge Heaters Standard - Low to medium Watt Density Superwatt® - High Watt Density Metric Low to High Watt Density Special Features Special Immersion Alternate Style Maxium Flow Pure Flow Heavy Duty Temperature Control Strip Heaters Mica Insulated Ceramic Insulated Ceramic Insulated Finned Special Features Band Heaters Band Heaters Special Features Drum Heater

Tubular Heaters Straight and Formed Finned Tubular Forming Options Screw Plug Drum Heaters Glasrope® Heaters Special Features Foil Heaters Special Features Tubular Sheathed Glasrope® Heaters Special Fearures Ceramic Heaters Special Features Crankcase Heaters Borg Warner Westing House / McQuay Email: sales@hotwatt.com

Miscellaneous Heaters Cabinet Open Coil Ceramic Plate Controls Voltage Controlling Devices Temperature Controlling and Indicating Devices Technical Index Wattage Calculation Formulas and Examples Properties of Non-Metallic Solids Properties of Liquids and Gases Suggested Watt Densities Estimates of Wattage Required Guide for Heat Losses Suggested Sheath Materials Thermal Systems Wiring Diagrams Mathematical Conversions: Circumferences and Areas of Circles Areas of Volume, Squares, Geometrical forms and Conversion Factors Temperature Conversions Empirical Guideline for Cartridge Heater life...

Cartridge Heaters CARTRIDGE Hotwatt manufactures a wide range of cartridge heating units for a variety of applications. This size, sheath, leads, terminals, wattage and voltage can be adapted to your heating requirements. Hotwatt can provide you with heating units manufactured to your specifications to accommodate your application. Hotwatt stocks all material for the different diameter units listed in this catalog. Your order, specifying the wattage, voltage, diameter, length and lead type is readily and quickly fabricated from our inventory. In addition, many standard sizes are available...

Cartridge Heaters U.L. Recognized – E56973 C.S.A. Certified 016386-0-000 Low to Medium Watt Density Applications: Compressor Crankcase Heating, Copiers, Dies, Food Processing, Glue Pots, Heat Sealing, Hot Melt Adhesive, Labeling, Medical Equipment, Packaging, Photographic Processing, Plastic Molding, Platens, Wax Pots. Construction: 1 Heliarc welded end seal. 2 Mica. 3 Series 300 stainless steel sheath of precision dimensions and tolerances for intimate, stable, non-oxidizing contact with cavities machined for them. • Hotwatt Precision Cartridge Heaters provided localized heat to restricted...

Cartridge Heaters Low to Medium Watt Density Round Diameter: Maximum Amperage: • Lengths longer than those listed may be ordered. Watt Approx. Density Wght. w/in.2 (lbs.) 25 35 40 Email: sales@hotwatt.com

Cartridge Heaters CARTRIDGE Low to Medium Watt Density M Manfactured Items M • Lengths longer than those listed may be ordered. M IN STOCK ITEMS M

Cartridge Heaters Low to Medium Watt Density Diameter: 3⁄8" Email: sales@hotwatt.com M IN STOCK ITEMS (Continued) M

Cartridge Heaters CARTRIDGE Low to Medium Watt Density M Manfactured Items M • Lengths longer than those listed may be ordered. M IN STOCK ITEMS M

Cartridge Heaters Low to Medium Watt Density Diameter: 1⁄2" (continued) M IN STOCK ITEMS (Continued) M Email: sales@hotwatt.com

Cartridge Heaters Low to Medium Watt Density CARTRIDGE M IN STOCK ITEMS (Continued) M Watt Approx. Density Wght. w/in.2 (lbs.)

Cartridge Heaters Low to Medium Watt Density Diameter: Maximum Amperage: Sheath Length For longer lengths, compute wattage at: • Lengths longer than those listed may be ordered. Wattage The maximum wattages listed are computed at 60 watts per square inch of heated surface. With proper fit in a heat sink, long life can be expected at this watt density. Consult factory for higher watt density applications. Lower watt density will result in longer life. Any wattage within standard limits may be ordered without affecting price. Voltage Standard voltages are either 120V or 240V (subject to...

Cartridge Heaters U.L. Recongnized - E56973 C.S.A. Certified - LR - 016386-0-000 Superwatt® High Watt Density Applications: Dies, Heat Sealing, Hot Melt Adhesive, Plastic Molding, Platens, Shoe Machinery. Features: • Elements are designed for maximum: Watt density, temperature, heat transfer and heater life. • The useful life of a Cartridge heating element is determined by how quickly the heat generated in the resistance wire can be disappated to the outside sheath. With low and moderate watt density elements, such as Hotwatt’s standard line, the conventional method of inserting helical...

Cartridge Heaters Superwatt® High Watt Density CARTRIDGE Diameter: Maximum Amperage: Sheath Length Sheath Length Email: sales@hotwatt.com

Cartridge Heaters CARTRIDGE Superwatt® High Watt Density M IN STOCK ITEMS (Continued) M • Lengths longer than those listed may be ordered.

Cartridge Heaters Superwatt® High Watt Density Diameter: 1⁄2" (continued) M IN STOCK ITEMS (Continued) M 1 Email: sales@hotwatt.com

Cartridge Heaters CARTRIDGE Superwatt® High Watt Density

Cartridge Heaters Superwatt® High Watt Density Fit High watt density heaters require careful fit to insure optimum performance and long life. Hotwatt recommends that installation holes not be drilled and reamed over .002” or larger than the nominal hole size required. The heaters are sized so that they never exceed .005” less than the nominal diameter and always at least .001” under the nominal diameter for a slide fit. These close fits insure rapid heat transfer from the heater and also help keep the unit as cool as possible, which contributes to long life. See chart A for allowable watt...