UniSens®
- One sensitivity for the complete mould means less work, less
risk
Two new cavity
pressure sensors from Kistler have front end diameters of only
1mm, the world's smallest, and 2.5 mm both of which can be machined
up to 0.5 mm to be made flush with the cavity wall contour virtually
eliminating any marking of the moulding.
Both sizes come with UniSens® uniform sensitivity to simplify
installation, option of Titanium Carbo-Nitride (TiCN) coating
for use with abrasive media and 2,000 bar pressure range.
The availability of Titanium Carbo-Nitride coating, rather than
hard chromium, provides optimum protection against wear, ensuring
longer lifetimes. The coating delivers two decisive advantages:
exceptional hardness against abrasion, and resistance to corrosion
by the action of chemicals making the new sensors ideal for use
with glass fiber-reinforced plastics and flame-retardant materials.
The front end of the coated versions cannot be machined as this
would remove the protective coating. Where front end machining
is essential to match the curve of the cavity the uncoated version
must be specified.
Both versions have uniform sensitivity to ensure maximum deviation
of ± 3% of the nominal sensitivity (2.25 pC/bar). This
simplifies installation and interchangeability of sensors, as
the nominal sensitivity can be used. All versions with replaceable
cable are IP67 protected. Several mounting styles and cable types
deliver easy and flexible integration, especially in multi cavity
moulds.
The uniform sensitivity provides excellent precision which eliminates
the need for sensor detection in the system. The sensitivity
of these sensors remains consistently high, so users no longer
have to enter values from each sensor data sheet. This also means
that replacing the sensors is very straightforward and far easier
to handle, especially when multi-cavity moulds are involved.
Very tight tolerance ranges and ease of handling will obviously
be key advantages for manufacturers of complex high-precision
parts, such as high density connectors, automotive components
and medical equipment.
The new, direct measuring pressure sensors deliver simple installation
due to Unisens® combined with long life in challenging applications
and the virtual elimination of marking on surface of the moulding.
Used in combination with the Kistler ComoNeo cavity pressure
monitoring system, the new sensors add another element in the
search for zero rejects in the injection moulding industry.
February
2020
