Welded parts - Import export

The LVW series covers smaller applications with machines of approx. 500 mm width and large applications up to a width of 2000 mm, like pallets, bumpers and more. As a principle our standard machines are equipped with an hydraulic lifting table. Depending on the machine size a contact force of up to 70 kN can be applied. This is necessary for large suction pipes made of PA 6.6 GV30 with heavy distortion or very large welding surfaces. Our vibration welders are fitted with our patented CPC system. This kind of regulation which is integrated in the converter stimulates the vibration unit with optimal resonance frequency. A low energy consumption is guaranteed during the friction phase. It is not necessary to enter the frequency parameter in the machine, as it is permanently “optimized”. This, the KLN drive systems are independent from the tool weight. The tool weight is solely limited in height, caused by the mechanical design and the high accelerating powers arising in these systems.

For the assembly of plastic parts, which differ in size and condition and would therefore not be suitable for standard machines, we recommend the use of special equipment with several ultrasonic units for ultrasonic welding and processing methods. • Riveting • Welding • spot welding • punching • flanging • cutting • embossing • printing Multi-head systems These machines can also be used to accomplish complex tasks, e.g. the combination of different welding techniques, like spin welding and hotplate welding and for numerous automated processes

In our laboratory we have all options to supply you with tests, parts analysis and pre- or small batches productions. Our team of highly skilled experts will assist you, if you have any question about how to design your parts for optimal welding. In our plant in Heppenheim we have the option to do welding tests with all the welding methods we offer in order to give you the maximum reliability for your serial process.

We work with you to develop the best possible solution for your project based on standard systems or modular functional modules. We have developed solutions for welding, punching, riveting, drilling, wrapping, flanging, handling and many other processes. Your task is most important for us and our technicians will try find together with you a solution meeting the requirements in quality, cycle time and cost. Examples of special systems: • final processing machines for plastic fuel tanks • rotary table machines for vibration welding, infrared welding, ultrasonic welding and hot plate welding • edge-welding machines for textile back injection molded parts • ultrasonic or mechanical punching machines • infrared welding machines in modular design for welding of several parts in one go • fully automated operating cells e. g. with feeding technology and robot handling

One of the advantages which distinguishes the thermal riveting procedure from other assembly techniques is the safe form-fit. Another advantage: the thermoplastic cannot embrittle as in the case of ultrasonic welding. Apart from the well-established welding techniques for plastic parts in series, KLN Ultraschall AG also develops and produces in Heppenheim equipment for thermal riveting. This technique is still regarded as a very special procedure and has important advantages in comparison with ultrasonic, hot plate, vibration or spin welding. Thus it can be interesting for additional fields of application. This procedure is particularly applied for plastic parts having safety features. In contrast to the ultrasonic riveting, the thermal riveting can be applied without any problems for plate/ plastic assemblies, as no swinging tools are touching the plates which could endanger the assembly.

The Coherent desktop laser is a universally applicable, compact system for manual welding tasks. To ensure reliability and high quality process results, the system features computercontrolled laser pulses, monitored cooling, easy workpiece positioning via the stereo microscope, and a welding assistance system. The efficient housing design provides a large work space, yet is compact enough to fit in tight spaces.