Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters

Cartridge Heaters Metric Insertion Heaters.com

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Electrical Terminations-Cartridge Heaters-Lead Types & Lead Protection Options:

Cartridge Heater with Crimped-On Leads
(Configuration 1)



Cartridge Heaters with Crimped-On Leads
A high temperature double crimp connects the MGT (450C) leads to solid nickel pins. This construction is recommended for applications with elevated temperatures. Due to the rigid nickel pins, this construction is not recommended in applications where movement or flexing is encountered, or if sharp bends are required adjacent to the heater exit.

Cartridge Heater with Swaged-In Leads
(Configuration 2)



Cartridge Heaters with Swaged-In Leads
High temperature MGT (450C) wire is internally connected and swaged in place. This construction is recommended for applications in which the leads must be bent at the exit point from the heater and where mild flexing may be found. For applications with continuous or more severe movement, we would recommend metal braid or armor cable.

Cartridge Heater with Stainless Steel Braid
(Configuration 3)



Cartridge Heaters with Stainless Steel Braid
High temperature MGT (450C) wire is internally connected and swaged in place. This construction offers protection against abrasion and sharp edges. This is a very strong construction which offers full length flexibility. This construction is recommended in applications with flexing and where the leads must pass through metal openings or routed along metal components.

Cartridge Heater with Stainless Steel Hose (Armor Cable)
(Configuration 4)



Cartridge Heaters with Stainless Steel Hose (Armor Cable)
High temperature MGT (450C) wire is internally connected and swaged in place. This construction is recommended for applications in which the leads are subjected to abrasion or run the risk of being pinched. This is the strongest lead protection available and works well in moving or flexing applications.

Cartridge Heater with Right Angle Fiberglass Leads
(Configuration 5)



Cartridge Heaters with Right Angle Fiberglass Leads
High temperature MGT (450C) leads exiting at right angle to the sheath. This construction offers a compact design where space is limited. This construction is not recommended where abrasion or flexing is present.

Cartridge Heater with Right Angle Stainless Steel Braid
(Configuration 6)



Cartridge Heaters with Right Angle Stainless Steel Braid
Stainless steel braid over high temperature MGT (450C) wire exiting at right angle to the sheath. This construction is recommended in applications with flexing and where the leads must pass through metal openings or routed along metal components. This construction is desirable when space is limited and it is not feasible to bend standard leads.

Cartridge Heater with Copper Elbow
(Configuration 6B)



Cartridge Heaters with Copper Elbow

Armor cables are less flexible than stainless steel braids, but provide contamination resistance in addition to superior protection against abrasion. A copper elbow braised to the cartridge externally, provides a 90 transfer.

Cartridge Heater with Right Angle Stainless Steel Hose (Armor Cable)
(Configuration 7)



Cartridge Heaters with Right Angle Stainless Steel Hose (Armor Cable)
Stainless steel hose over high temperature MGT (450C) wire exiting at right angle to sheath. This is the strongest lead protection for use in applications where severe abrasion is present. These leads offer good flexibility and are good for moving or flexing applications

Cartridge Heaters with Single or Double Threaded Fittings - Brass or Stainless Steel NPT Fittings
(Configuration 8)


Single or double threaded fittings attached to sheath to allow for installation into threaded holes
(Configuration 8A)


Single or double threaded fittings attached to sheath to allow for installation into threaded holes
(Configuration 8B)



Cartridge Heaters with Single or Double Threaded Fittings - Brass or Stainless Steel NPT Fittings.


Single or double threaded fittings attached to sheath to allow for installation into threaded holes.

Cartridge Heater with Mounting Flange
(Configuration 9)



Cartridge Heaters with Mounting Flange
Mounting flanges are recommended for applications where vibration or movement may cause the heater to be dislodged from its hole. Stainless steel flanges are available in a variety of sizes and configurations. The standard flange is round and is supplied with two mounting holes. For heaters 5/8" diameter and under, the flange would be 1 1/2" in diameter. For larger diameter heaters the standard flange would be 2.00" in diameter

Cartridge Heater with Teflon End Seal
(Configuration 10)



Cartridge Heater with Teflon End Seal
A Teflon plug is swaged in place along with Teflon leads. This construction resists oil and water to 250C/480F. There is a minimum of a 1.00" unheated length at the lead end. Longer cold sections may be required if the watt density or operating temperature is high.

Cartridge Heater with Screw Terminals
(Configuration 11)



Cartridge Heater with Screw Terminals
Threaded stud terminals are supplied complete with high temperature nuts and washers. Standard screw is #8-32. Available in 5/8", 3/4", 1", 16 mm and 20mm diameters heaters.

Cartridge Heaters with Double Ended Terminals
(Configuration 12)



Cartridge Heaters with Double Ended Terminals
These terminations are ideal for applications where wiring form both ends is required. A minimum cold section of 1" is required for these leads.

Available Terminations
- Solid nickel pins

- Lead Wires

- Threaded Studs

Cartridge Heater with Terminal Boxes
(Configuration 13)


Cartridge Heater with Terminal Boxes
Terminal boxes are permanently attached to the heater sheath to provide excellent protection in a variety of environments.

Available Boxes
- General purpose sheet metal
- Moisture proof
- Cast aluminum explosion resistant





Cartridge Heater Leads and Lead Protection Options:

Cartridge Heaters Leads- NPH supplies several types of leads for cartridge insertion heaters.

 

Fiberglass (standard)
Temperature rating : 482F | 250 C


Silicone
Temperature rating : 356 F | 180 C


Silicone cable
Temperature rating : 356 F | 180 C



Teflon
Temperature rating : 500 F | 260 C



Teflon (High Amperage)
Temperature rating : 500 F | 260 C



Fiberglass (High Temp.)
Temperature rating : 932 F | 500 C

 

 

Lead Protection for Cartridge Heaters

NPH offers the following lead protection options

 

Fiberglass Sleeve

Braided Metal Sleeve

 

Armor Cable

Armor Cable (Gas Proof)

 

Potting options for Cartridge Heaters- NPH is also a supplier of various potting options for Cartridge heaters.

 

Ceramic
Temperature rating : 1000 F | 538 C


Epoxy
Temperature rating : 600 F | 315 C

 

Teflon Plug

Temperature rating : 450 F | 232 C

 

Silicone

Temperature rating : 500 F | 260 C

Silicone (High Temp.)

Temperature rating : 650 F | 343 C






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Our industrial electric cartridge heaters including metric and imperial heaters...

Consists of the following cartridge/insertion heater categories:

Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Standard imperial and metric round cartridge heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Medium watt density cartridge heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  High watt density cartridge heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Split sheath cartridge heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Square cartridge heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Small diameter/miniature pencil heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Bolt cartridge heaters
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Custom cartridge/insertion heaters

Applications for the above include:

Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Cartridge Heaters for-Extrusion Dies, Liquid Immersion
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Metric Heaters for-Plastic Molds and Injection Molding
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Insertion Heaters for-Plastics Extrusion
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Custom Cartridge Heaters for-Packaging Machinery, Labeling and Sealing
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Square and Round Cartridge Heaters for-Hot Plates and Platens, Hot Stamping
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Cartridge Heaters for-Hot Runner Molds, Various Types of Dies
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Insertion Heaters for- Medical Equipment and Other Industrial Applications

The square cartridge heater configuration simplifies wiring and installation while optimizing performance in a wide range of solid, liquid, and gas heating applications. Tooling applications are particularly well served by the square cartridge heater approach. Typical square cartridge heating applications include platens, molds, sealing bars, sealing plates and dies. Versatile slot style mounting simplifies installation in small tooling components such as bushings and nozzles and is particularly useful when leads must exit at a specific location on the component surface.

Some applications demand much longer heater life, that is where miniature small diameter pencil/cartridge heaters have immense application value. Life expectancies of five, seven or even ten years are not unreasonable for some mission-critical applications:


Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Blood warmers used in medical theaters must never fail
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Battery conditioners for EVA spacesuits on the International Space Station must last ten years      before replacement, due to payload costs
Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters  Here on earth, high throughput semiconductor chip testers must operate without significant      downtime for the 5 year life of the equipment. For these applications, a service life of 50,000 to      90,000 hours is a requirement that is both reasonable and attainable.

Some common issues with most standard cartridge heaters are as follows:

Heater removal: a cartridge heater will oxidize after many hours of operation and maybe difficult to remove. Consider drilling a through hole so the heater can be hammered out or choose a split sheath cartridge heater.

Lubricants: like graphite or silicone facilitate the insertion of the cartridge heater but can carbonize at higher temperature and then the heater will be really stuck.

The NPH split sheath cartridge heateris designed especially for platen, die or mold industrial heating applications where the holes are poorly drilled or worn through age. Independent expansion of each section of the split sheath cartridge heater when energized, creates intimate contact with the wall of the hole.

Through the patented split-sheath design and highly specialized manufacturing techniques, NPH split sheath insertion heaters reduce your total cost of process heating by an average of 40% over other heaters.

NPH’s split sheath cartridge heaters use a unique, patented split-sheath design that expand when energized to maximize heat transfer through greater contact with the wall of the bore. Better heat transfermeans less power is consumed to maintain the set point temperature, reducing operating costs.

Bolt cartridge heaters are used to tighten large bolts that secure heavy machinery and equipment. The shaft of the heater is inserted into the hollow bolt and energized to expand it, which allows further tightening of the nut. Manufactured with a high watt density, they heat up in just a few minutes, resulting in cost savings on reduced man hours removing nuts from bolts and studs. Large bolts can be heated to full expansion in just a few minutes. This heater design is manufactured with specific diameter sheaths to fit industry standard hollow bolts. High watt densities with special heated lengths distribute heat evenly to surrounding bolt.



Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters Cartridge heaters electrical terminations, lead protection options, potting options, electrical heaters

Telephone: 905-859-8225        Facsimile: 905-859-4691

sales@nphheaters.com

Toll Free: 1-877-674-9744