100-412-234 REV. 06 51
S-Beam Load Cell and Dynamic Follow Through
The S-Beam Load Cell measures the force being applied to the part to trigger ultrasonics
and record the welding parameters. The S-Beam Load Cell assembly ensures that
pressure is applied to the part prior to the application of ultrasonic energy.
To maintain horn-to-part contact and force as the joint collapses, the S-Beam Load Cell
assembly provides dynamic follow-through. As the plastic melts, the S-Beam Load Cell
assembly ensures smooth transmission of ultrasonic energy into the part.
Linear Encoder
The encoder measures the distance the horn has traveled. Depending on the power supply
settings, it can:
• Allow for distance welding
• Detect improper setup controls
• Monitor the quality of the weld
• Decrease cycle time by generating signal to initiate indexing of material handling equipment
before horn is fully retracted
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