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Standard And Metric Cartridge Heaters/Rod Heaters

Guide: Rod/Firerod Cartridge Heaters, Custom Cartridge Heaters

 
Cartridge Heaters, Custom Cartridge Heaters, Metric Insertion Heaters
Review Custom/Bespoke Cartridge Heaters - Group
 
Review Cartridge Heaters Custom Guide: What are cartridge heaters, pencil heaters, rod heaters or insertion heaters?

Cartridge Heaters and all the various names for them above are primarily used for heating of all sorts of metal parts by being inserted into drilled holes, but also have uses in the packaging industry and suitable for many other "process industry" applications. Cartridge heaters are either round tube shaped or square/rectangular designs.

The Best Cartridge/Rod  heaters are constructed of the following material components:
 
(i) A thin metal sheathed outer shell/tube (usually made of 304, 316 or 321 stainless steel and incoloy) that actually makes contact with the inside wall of a bore be it in a mold, platen or die and hence transferring its energy via conduction.
 
(ii) The cartridge heater shell houses the coiled nichrome (nickel/chromium) resistance wire, ceramic insulator and MgO (magesium oxide) insulation. The MgO is compacted via swaging to ensure all empty gaps are filled preventing a short circuit and allowing the heater to transfer its heat quickly and efficiently to the outside wall of the stainless steel shell.

(iii) A welded disc is then  applied to the open end of the cartridge after the cartridge heater has been filled with MgO. This prevents the nichrome wire, the MgO and other componets from coming out. In addition, it prevents contamination, such as plastic debris, air, or moisture, to go inside the heater.

(iv) Fiberglass insulated or other lead type insulations are finally installed to complete the cartridge heater. The cartridge heaters might be terminated with the leads coming out straight, or in a right angle. Also, manufacturer must be careful that the leads are not exposed to temperatures higher than the maximum rating for the lead wire. In order to prevent lead wire damage from temperature, movement or contamination, the lead wire can be protected with metal conduit or braided metal.

NPH custom rod heaters can be dual-voltage, three phase, and/or be supplied with a ground terminal. With ten different termination styles, mounting attachments and various optional features, NPH high-density cartridges are widely used in numerous high temperature applications.

NPH custom/bespoke cartridge heaters, custom insertion heaters, split sheath cartridge heaters and square cartridge heaters are available in metric and imperial sizes and are a critical component for major manufactures operating in industries such as plastics, rubber, packaging, food service, military technology and a variety of other industrial applications.

Review Custom/Bespoke Cartridge Heaters Specifications & Tips


How To Order Cartridge Heaters

Quotation Request Form

Select Type of Cartridge Heater
Select Cartridge Heaters Configuration Model Below:
(click on cartridge heaters images below to enlarge)
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Outside Diameter
Inserted Length
Overall Length
Watts
Volts
Lead Length
Lead Exit straight 90° copper elbow
Cartridge Heater Lead Options
Cartridge Heaters Lead Protection Options
Lead Connection Construction swaged in leads crimped on leads
Cartridge Heaters Potting Options
Special Features & Construction
Lead Termination Style
Ground Wire Yes no
Thermocouple None J K T
Thermocouple Junction Grounded Ungrounded
Thermocouple Location Disc End Center Offset
Heater Watt Density medium watt density high watt density
Lead Protection Options fiberglass-high temp sleeve-1200°F s.steel overbraid armor cable gas proof armor cable F/G leads with ceramic beads
Potting Options Ceramic potting -temp rating 1000°F/538°C Epoxy 600°F/315°C Teflon plug 450°/232°C High temp silicone 650°F/343°C
Number of Pcs. Required
Requested Delivery Date
Any additional Application Comments & Details
First Name Last Name
Company Name Position
Address City/State/Province
Zip/Postal Code Country
Phone Number Fax Number
Toll Free Number Email
Web Site OEM Distributor Process User
Quotation Request Required Delivery Date
have a salesperson contact me
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