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Heaters, Sensors, Controllers, Relays, Linear Displacement, and Leadwire

Mica Band Heater Manufacturer

We are a manufacturer who specializes in same day custom manufacturing – Large stock of mica band heaters

Standard Lead Times

INFORMATION

Mica Band heaters are industrial heating elements that are constructed with a mica core that is wound with wire and then shaped into a circular band. The leads are attached and the heater is enclosed in an outer sheath to complete the assembly. These heaters are unique in that they can be installed directly onto barrel heaters without the need to remove the initial heater. They also only require one set of leads or terminals, and they are made with polished precision.

Our Mica Band heaters come in many variations, each with its own unique characteristics. However, if you don’t see a variation that meets your needs, we offer customized solutions to our customers. Contact us at 416-675-7329 or email us at sales@mpimorheat.com for any questions or inquiries.

Mica Band heaters have a number of capabilities and benefits. They have a sheath temperature that can operate up to 900°F, watt densities up to 45 W/in² (7.0 W/cm²) and have CSAus (UL Equivalent) Component Recognition that is available for applications up to 900°F. Clamping straps are also available to assure efficient heat transfer. The low mass design allows for quick heat-up and fast response times.

Mica Band heaters are commonly used in a variety of industrial applications such as plastic extruders, injection molding machines, blown film dies, container pipe and tank heating, laboratory equipment, restaurant and food equipment, and pharmaceutical industries.

CONSTRUCTION TYPES
Construction Types
Picture Type Notes
1B One-piece construction is used when the mica band heater can be installed on a barrel without extensively expanding it. This construction features a built-in strap. They are most often used in applications where the band can be slipped over the end of the cylinder. one-piece construction band heaters are available with any clamping options or any lead termination
2B Two-piece construction band heaters provide a built-in hinge to make installation easier for applications where the band heater cannot be slipped over the end of the cylinder. They are often used or larger diameter barrels. Two-piece construction band heaters are available with any clamping options or any lead termination
1E One-piece expandable construction heaters are used in applications where two-piece construction is not practical, and where the heater needs to be opened up during installation. This style of heater should not be opened up more than twice.
1SQ/2SQ Mica Heaters can be made square, rectangular, or multi-sided to suit specific applications with flat surfaces. Mica Square / Box heaters can be made in a one-piece or two-piece construction.
1S Mica Band heaters can be made with a separate strap. This option is not recommended as the installation is more difficult, and the clamping force is not as strong and even as a built-in strap (1B construction). Separate Strap band heaters can be made with any lead termination.
1P Partial Coverage mica band heaters are normally required in applications where holes and cutouts will not allow the heater to sufficiently clear the machine obstructions. This style heater can be made with any clamping options or termination.
Installation Instructions
  1. Install the Mica Band Heater onto a clean surface
  2. Tighten the barrel nut until the screw cannot be tightened any further. If there are mutiple barrel nuts, alternate tightening each screw evenly until they cannot be tightened any further.
  3. Ensure the heaters is stead correctly on the barrel and tap around the circumference of the heater with a rubber mallet to ensure good, even contact.
  4. Power up the heater and heat the process up to operating temperature
  5. Mica Band Heaters will expand during the heat up process, so it is critical to re-tighten them once they reach temperature
  6. It is recommended to re-tighten the barrel nuts every 3-4 months
ELECTRICAL TERMINATIONS
Construction Types
Picture Type Notes
EP Euro plugs, or European Plugs, are safe and simple to use. They are mostly used in applications where the electrical termination is frequently disconnected. They can be used with all types of construction and clamping styles. Euro connectors can face straight out of the band, or can 90deg of the band.
EPB The Euro Plug in Box termination is the same as a standard European plug, except the plug is mounted in a box.
TS For the TS termination, the post terminals are on the same side of the gap (near the gap). The post terminal termination is the most and economical way to connect a heater to a power source. They are recommended when high current is involved (up to 25 amps). Post terminals can handle up to 840°F / 450°C.
TO For the TO termination, the post terminals are on opposite sides of the gap (near the gap). The post terminal termination is the most and economical way to connect a heater to a power source. They are recommended when high current is involved (up to 25 amps). Post terminals can handle up to 840°F / 450°C.
S1 The Stainless Steel Braid termination is ideal in application where there is frequent movement or any risk of abrasion. A strain relief spring guard comes standard with this termination. This termination can be anywhere on the band, including a 90° exit, and a nozzle style exit.
BX The Stainless Steel Armor termination provides the best protection against abrasion and where lots of flexibility is not required. This termination can be anywhere on the band, including a 90° exit, and a nozzle style exit.
TB2/TB3 The Terminal Box termination eliminates the risk of any electrical shock or short since the post terminals are protected by a heavy duty stainelss steel box. The box dimension for standard size bands are 3″Lx2″Wx2″H (for smaller bands, there will be a custom smaller terminal box). Custom sized terminal boxes and low profile terminal boxes are also available.
NZ The Nozzle Band termination is the cheapest option available. They are mainly used on smaller diameter nozzle heaters. The leads exit at a 90° angle from the band, each coming out of one side of the gap.