Tension measurement is achieved by strain gauge loadcells, either
a narrow web roller loadcell mounted in the path of the material
being processed or compressive cells fitted in a swinging arm mechanism.
The narrow web transducer combines a bearing mounted idler roller
and two tension sensing elements in a single package. It measures
tension in the moving web of material. The loadcell is very accurate
and not affected by material position because the sensing elements
are located at each end of the roller. The sensing elements measure
total web tension regardless of the web position on the roller.
The loadcell is available in three widths up to 14², with load ranges
from 5Kgs, 10Kgs, 20Kgs and 50Kgs or equivalent imperial loads.
Mounting is via a single bolt or flange with four bolts. The loadcells
may be fitted direct to the machine or in conjunction with the TSC
range of tension control mechanical systems.
Input unwind, intermediate and rewind of web tension for rotary
die cutting and setting of web tension for the laminating and print
registration in label manufacture, medical and automotive products
and coil winding. Compressive loadcells are usually employed in
swinging arm or similar mechanical layouts where it is not possible
to fit the roller loadcells. These loadcells can give higher sensitivities
than roller types typically 0.2Kgs to 10Kgs requiring a more complex
mechanical arrangement, but giving a wider dynamic range with operator
here for Web Tension Control Click
here for Web Tension Brakes and Clutches
here to download data sheet 1
CONTROLS LIMITED is based in Banbury Oxfordshire