General Info


There are many cartridge heater suppliers to choose from, but Jobco is a stocking cartridge heater supplier for your custom cartridge heater needs.  We keep your special heating cartridges in stock to keep you out of trouble during emergency situations.

Jobco sells cartridge heaters for many applications: Heating Gasses, Heating Liquids, Food Processing, Plastic Extrusion, Molds & Dies, Medical Equipment, Packaging Equipment, Plastics Molding, Gate Cutters, and Hot Runner Molds. Our cartridge heaters are manufactured to meet extensive quality standards before shipping to you, our customer. These stringent standards are maintained for our stock heating cartridges and our custom heater cartridges.

Jobco sells Chromalox cartridge heaters, Dalton split sheath heater cartridges, EZHeat cartridge heaters, Marathon cartridge heaters, Tempco cartridge heaters, Watlow Firerod heating cartridges and many other brands of cartridge heaters.

Shop Cartridge Heaters

Stock Cartridge Heaters
We can ship stock cartridge heaters on the same day, and we can ship a custom cartridge heater on the next day. The standard delivery for a cartridge heater is two weeks. Call Jobco today at 479-424-1300 to order the heating cartridges you need.
Check out our Stock Cartridge Heaters by CLICKING the diameter listed below:

1/4 Inch Diameter Cartridge Heaters

1/4″ Diameter 10″ Fiberglass Leads

1/4″ Diameter 14″ or 26″ or 38″ Fiberglass Leads

1/4″ Diameter Fiberglass Leads & Type J Thermocouple

5/16 Inch Diameter Cartridge Heaters

5/16″ Diameter 10″ Leads

3/ 8 Inch Diameter Cartridge Heaters

3/8″ Diameter 10″ Leads

3/8″ Diameter 14″ or 26″ or 38″ Leads

1/2 Inch Diameter Cartridge Heaters

1/2″ Diameter 10″ Leads

1/2″ Diameter 14″ or 26″ or 38″ Leads

5/8 Inch Diameter Cartridge Heaters

5/8″ Diameter 10″ Leads

5/8″ Diameter 14″ or 26″ or 38″ Leads

3/4 Inch Diameter Cartridge Heaters

3/4″ Diameter 10″ Leads

3/4″ Diameter 14″ or 26″ or 38″ Leads

10, 12, & 20mm Diameter Cartridge Heaters

10, 12, & 20 mm Diameter 10″ Leads

All Cartridge Heaters
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Custom Heater Options & Resources

Cartridge Heater Add-On Features

Stainless Steel Fittings

Stainless Steel Fittings

Brass Fittings for Cartridge Heaters

Brass Fittings

Flanges for Cartridge Heaters


Standard flange material is stainless steel. Flanges can be round, irregularly shaped, or even as simple as a bead of weld. Contact Jobco for standard and non-standard flange configurations.

Strain Relief for cartridge heaters

Strain Relief

Provides extra support for leads. Great for applications with lots of flexing.

Resources and Information

Cartridge Heater Terminations

Cartridge Heater Lead Options

Cartridge Heater Lead EndSeals

Cartridge Heater Sheath Selections

Special Construction Options

Watlow Cartridge Heaters Overview

Have a question? Don’t see what you’re looking for? Call us at (479) 424-1300 or send us a message!