Jentschmann AG • Feldstrasse 2 • CH-8194 Hüntwangen • Tel. +41 44 735 83 83 • info@jentschmann.com
Ultrasonic Welding Machine for closing pleated filters

Jentschmann Weldsonic™Filter
The Jentschmann Weldsonic™Filter is an ultrasonic welding machine for continuous welding, gluing, cutting and sealing of filter materials.
The welding process bonds the materials directly together. For non weldable materials (e.g. cellulose) the machine uses hot melt adhesive tapes to ensure a strong bond.
The hot melt tape is selected according to the necessary specification and is fed directly between the two layers of material by application specific guiding devices.
The adhesive is activated by ultrasound and is cured within a few seconds
During the welding or gluing process the bonded edge can be simultaneously cut & sealed if desired. Sonotrode and anvil wheel are driven by independent servo motors to provide accurate and consistent material feeding. An integrated conveyor belt supports the transfer of the filter packs when passing the welding station. This guarantees a straight flat seam even when using heavy materials
Application:
Continuous welding, gluing, cutting and sealing of filter materials
Concept:
Most machine functions are activated by using the touch screen. When touching the symbols on the display, the machine will perform the corresponding functions. Material-related welding- and machine parameters are stored in the control and can be recalled in seconds. The Weldsonic™Filter uses ultrasound to provide the bonding or cutting energy. The material moves between the sonotrode and anvil while the ultrasound melts the material or the adhesive tape. The seam design and dimension is set by the surface and width of the anvil wheel. The energy delivered to the material is controlled by the ultrasonic amplitude, the anvil pressure and the welding speed. Depending on the filter dimensions some manual adjustments may be necessary - e.g. the alignment of the material guide or the height adjustment of the working table.
Features:
•  Welding head consisting of solid welded steelsheets.
•  Welding procedure: 35 kHz, 600 W ultrasonic with rotating 11 mm sonotrode and anvil roller, optional 7 mm steel or 20 mm 900 W sonotrode.
•  Real time control of preset welding power output during the entire welding process.
•  Welding speed: 0.3 - 30 m/min
•  Sonotrode and anvil roller with 2 separate differentiable drives.
•  Under arm clearance: 355 mm
•  Width of welding seam: 2 - 11 mm according to anvil roller
•  2 separate drives for sonotrode and anvil roller
•  Programmable ratio of rotating sonotrode and anvil roller speed.
•  Input and calling of welding parameter sets for an unlimited number of applications per key- board and display with automatic machine adjustment.
•  Oscilloscope function for graphic display of performance relevant parameters like amplitude, anvil roller pressure, gap between sonotrode and anvil roller as well as welding power output during a welding cycle.
•  Very low power consumption without power peaks
•  Environment-friendly! No microwaves, no nuisance.
•  Power requirements: 1 x 230 V 10 A, compressed air 6 bar