Products

TATEHO OZARK extrudes MgO insulators for the heater industry from high quality MgO obtained from our parent company out of Japan. It is compounded for best electrical performance for the heater industry.
TAEHO OZARK engineers the microstructure by powder processing.
This gives a reproducible microstructure under many firing conditions, and guarantees proper performance in the swaging and drawing operations.

TATEHO OZARK uses our Standard Grade for all requests stating “Standard” purity or 94% minimum and higher. This material is designated as “Heater” grade but is also suitable for temperature sensor applications including base metal thermocouples and RTD’s. For high density extrusions, please contact us.

TATEHO OZARK can manufacture most spacer geometries by extrusion and wafering to a finished thickness. This is an alternative fabrication method to the traditional dry pressing and sintering technique which is standard in the industry but has many shortcomings. TATEHO OZARK requires that the thickness tolerance be +/- .010”.

MgO spacers are used to facilitate the assembly of a cartridge heater. They serve dual roles of positioning the wind core into the center of the tubular metal sheath, and allowing the passage of MgO grain to be compacted into the annulus of the heater for thermal contact and electrical isolation.

Designs which have been named include:
1) round grooved cores, with 2, 3, or 4 full radius grooves on the periphery
2) round scalloped cores, with 2 or 4 partial radius grooves
3) Triangular and square designs with flats or radii in the cutout area
4) Toothed and Lego type designs with square notches
5) Very complex snowflake and other configurations
Spacers made by the TATEHO OZARK method can not have recesses, cavities, or pockets on the longitudinal axis. We recommend a minimum thickness of 15% of the diameter.