Swaged Cartridge Heaters
CUSTOM HEATERS – SAME DAY SHIPPING AVAILABLE – CALL US TO ORDER 800-817-3486
We specialize in manufacturing Custom Cartridge Insertion Heaters that can ship the same day you get in contact with us.
For instant service, please click on the LIVE CHAT in the bottom right-hand corner. You can also give us a call at 800-817-3486. If you are unhappy with your current Cartridge Heater supplier, get in contact with us right away. We are a customer service focused manufacturer that is here to make your life easier.
Do you need cartridge heaters with custom options fast? Get in touch with one of our sales engineers and we can ship you cartridge heaters to arrive tomorrow.
MPI Morheat has an extensive Stock List of Cartridge heaters available for same day shipment. MPI Morheat also manufactures custom cartridge heaters and can expedite production if needed.
Cartridge heaters are most frequently used for heating metal parts through insertion into drilled holes. For easy installation, the heaters are made slightly undersized relative to their nominal diameter. The majority of applications do not require maximum watt/in². Using as little wattage as possible to meet process requirements will ensure maximum heater life.
Holes should be drilled and reamed, rather than drilled to the final diameter with a general purpose drill. At high watt densities, a close fit is important. The fit is the difference between the minimum diameter of the heater and maximum diameter of the hole.
1. Welded Disc
2. Stainless steel tube in 304/316/321/INCOLOY
3. Ceramic disc insulator
4. Pure magnesium oxide
5. Nickel-chrome 80/20 heater wire
6. Ceramic core
7. Hard ceramic head
8. Lead Wire
9. Optional Potting Compound
| Diameter Sizes Available and Tolerances | |||||||||
| Sizes – Round | Sizes – Square | ||||||||
| Nom Dia | Min Dia | Max Dia | Max Amps | Max Volts | Nom Size | Min Size | Max Size | Max Amps | Max Volts |
| 1/8″ | 0.119 | 0.124 | 3.6 | 240 | 3/8″x3/8″ | 0.369 | 0.374 | 9 | 300 |
| 1/4″ | 0.244 | 0.249 | 9 | 30 | 1/2″x1/2″ | 0.494 | 0.499 | 9 | 300 |
| 6.5mm | 0.25 | 0.255 | 9 | 300 | 5/8″x5/8″ | 0.619 | 0.624 | 15 | 300 |
| 8mm | 0.309 | 0.314 | 9 | 300 | Sizes – Rectangle | ||||
| 3/8″ | 0.369 | 0.374 | 9 | 480 | Nom Size | Max Width | Max Depth | Min Watts | Max W/in |
| 10mm | 0.388 | 0.393 | 15 | 480 | 1/8″x1/4″ | 0.124 | 0.249 | 10 | 30 |
| 7/16″ | 0.432 | 0.437 | 15 | 600 | 1/8″x3/8″ | 0.124 | 0.374 | 10 | 50 |
| 12mm | 0.466 | 0.471 | 15 | 600 | 1/4″x5/8″ | 0.249 | 0.624 | 10 | 70 |
| 12.5mm | 0.486 | 0.491 | 15 | 600 | 1/4″x1″ | 0.249 | 0.999 | 10 | 100 |
| 1/2″ | 0.494 | 0.499 | 15 | 600 | |||||
| 13mm | 0.506 | 0.511 | 15 | 600 | |||||
| 17/32″ | 0.525 | 0.53 | 15 | 600 | |||||
| 14mm | 0.545 | 0.55 | 26 | 600 | |||||
| 5/8″ | 0.619 | 0.624 | 26 | 600 | |||||
| 16mm | 0.624 | 0.629 | 26 | 600 | |||||
| 17mm | 0.663 | 0.668 | 26 | 600 | |||||
| 11/16″ | 0.682 | 0.687 | 26 | 600 | |||||
| 19mm | 0.742 | 0.747 | 26 | 600 | |||||
| 3/4″ | 0.744 | 0.749 | 26 | 600 | |||||
| 20mm | 0.782 | 0.786 | 26 | 600 | |||||
| 25mm | 0.978 | 0.983 | 26 | 600 | |||||
| 1″ | 0.994 | 0.999 | 26 | 600 | |||||
| Picture | Type | Max Temp | Notes |
 | Duraflex | 1022°F 550°C | Flexible , Not Waterproof |
 | TGGT | 482°F 550°C | Durable, Flexible, Not Waterproof |
 | Teflon | 500°F 260°C | Abrasion Resistant, Small OD, Waterproof |
 | Silicone Rubber | 355°F 180°C | Very Flexible, Waterproof , Easy to Nick |
 | SEW2 | 392°F 200°C | Very Flexible, Fair Abrasion Resist, Waterproof |
| End Seal Options | |||||
| Type | Max Temp | Moisture Protection | Contaminant Protection | Mech. Strength | Vibration Resist. |
| Ceramic | 2500°F 1371°C | Poor | Poor | Excellent | Excellent |
| Teflon | 300°F 149°C | Excellent | Excellent | Very Good | Excellent |
| Lava | 3000°F 1649°C | Poor | Good | Good | Poor |
| Cement Potting | 1800°F 982°C | Poor | Fair | Good | Poor |
| Epoxylite Potting | 650°F 343°C | Fair | Very Good | Very Good | Excellent |
| Epoxy Potting | 265°F 129°C | Good | Good | Excellent | Excellent |
| Silicone Rubber | 500°F 260°C | Excellent | Excellent | Fair | Excellent |
| Termination Options | ||
| Picture | Type | Notes |
 | S | Swaged In Leads Standard 550°C Duraflex Flexible |
 | SL | Swaged In Leads c/w Silicone Coat F/G Sleeve Moist. protection up to 200°C |
 | C | Crimped On Leads Standard 550°C Duraflex NOT Flexible |
 | O | Post Terminals Used in applications with easy leadwire replacement (min 1/2″Dia) |
 | 90 | 90°Exit Suitable where leads must be at 90° with minimal space |
 | B | SS Braid Excellent Abrasion Protection |
 | 90B | 90°Exit c/w SS Braid Suitable where leads must be at 90° with minimal space and Excellent Abrasion Protection |
 | H | SS Armour Best Mechanical protection Cannot be bent as sharply as SS Braid |
 | 90H | 90°Exit c/w SS Armor Suitable where leads must be at 90° with minimal space and Excellent Abrasion Protection |
| Add Ons Features | ||
| Picture | Type | Notes |
 | Stainless Steel Fittings | Single or Double-ended : 1/8″, 1/4″, 3/8″NPT 1/2″, 3/4″, 1″NPT |
 | Brass Fittings | Single or Double-ended : 1/8″, 1/4″, 3/8″NPT 1/2″, 3/4″, 1″NPT |
 | Flanges | Standard Stainless Steel. Flanges can be round or irregularly shaped. |
 | Strain Relief | Provides extra support for leads. Great for Flexing applications |
| Special Constructions | ||
| Picture | Type | Notes |
 | Bent Heater | Must be bent in an unheated section |
 | MultiZone or Distributed Watts | Multi Zone – Up to 3 zones Distributed Wattage – custom |
 | Double Ended | Electrical Termination on Both Sides – either Lead Wires, Post terminals |
 | Internal T/C | (J/K)Type A – Center Core – Heater Temperature Type B – Middle – Block Temperature Type C – End – Disk End Temperature Flat Bottom |
