Product Description
dpstar designed and manufactured cartridge heater and revolutionized the heating element industry.
With premium materials and tight manufacturing controls, dpstar’s cartridge heaters (insertion heaters) provide superior heat transfer, uniform temperatures, resistance to oxidation and corrosion and long life even at high temperatures. Customers benefit from dpstar’s custom designs and on-time delivery.
| A | The standard termination for Hi-Density Cartridge Heaters is Type “N”, consisting of 10” (254 mm) externally connected leads to 1 1/4” (32 mm) solid nickel connectors. The leads are stranded nickel wire with high temperature fiberglass/Teflon® tape insulation, UL approved for 300 Volt or 600 Volt service, rated at a continuous operating temperature of 482°F (250°C). To meet the requirements of your application we offer over 40 standard termination styles to select from that will solve many of the most common application problems. |
| B | Double wall thickness high temperature fiberglass sleeve provides maximum electrical insulation to the connector used to splice the nickel conductors to the flexible leads. |
| C | Ceramic end cap prevents nickel conductors from shorting out against sheath when sharp bending of the leads is required. |
| D | Ceramic end cap and waged-in lava plug protect the internal cartridge from outer contamination. Other types of seals can also be provided. |
| E | For maximum current carrying capacity large diameter solid nickel conductors are used to insure a good electrical connection between the resistance wire and the nickel lead wires. |
| F | Specially selected grain size high purity Magnesium Oxide (MgO) is used to fill all remaining space inside the sheath. Heater is then waged, which compacts the magnesium oxide grains into a solid mass, thereby increasing thermal conductivity and dielectric strength. |
| G | Alloy 321 Stainless Steel is used to provide high temperature strength, good thermal conductivity and resistance to corrosion and scaling. Alloy 321 is a Nickel- Chromium Stainless Steel modified with the addition of Titanium. For higher operating temperatures or corrosive immersion heating application Lincoln® 800 and Alloy 316 Stainless Steel are available |
| H | Grade “A” Nickel-Chrome resistance wire is precisely wound on a high purity magnesium oxide core, placing the resistance wire as close to the inside of the sheath as possible while still maintaining dielectric strength. This provides excellent heat transfer, and results in the highest possible watt densities and longer heater life. |
| I | Heli-arc welded end disc made from same material as the sheath provides a positive seal against moisture and other contaminants. Pennybotom TM heaters have a flat copper end disc. |
Options & Accessories
Options on standard cartridges
- Ceramic beads Option 1
- Straight GMF Option 2
- Straight braid leads Option 3
- Bended Option 5
- Bended GMF Option 6
- Leads exit 90° Option 7
Accessories on standard and special cartridges
- Threaded fitting simple internal Accessory 11
- Threaded fitting simple external Accessory 12
- Mounting flange Accessory 13
- Abutment Accessory 14
- Anchor clip Accessory 19
Options & accessories of CCMC
- GMF 90° Option 8
- Braid leads 90° Option 9