1 The second machine in operation: the PBA-3 from Hundegger at Hüsser Holzleimbau 2 Processing can be tracked on screen 3 Thanks to the tool changer, the most important drills and millers are readily available 4 The PBA-3 is also used for processing beech glulam or construction beech. 5 Beaming faces: Cornel Rüegg from Hundegger with Martin Hügli and Daniel Ebert from Hüsser Holzleimbau 6 The deflector provides protection during parallel operation 7 Several tool units, e.g. a sawing spindle and a deep-hole boring machine, are used for processing 8 The second part of the duo: the classic K2i joining unit from Hundegger Moving 25 t accurately to the millimeter How a portal milling hub simplifies work and increases output Increasing demand for joint timber engineering elements necessitated the investment into a larger joining unit at Hüsser Holzleimbau from Switzerland – and „large“ does not even begin to describe the unit in question. B  Martina Nöstler  P  Hüsser Holzleimbau (1), Martina Nöstler Next to portal milling hub PBA-3 from the German machine specialist Hundegger from Hawangen, the „conventional“ joining system K2i seems quite „handy“ At Hüsser Holzleimbau in Bremgarten/CH, . both systems are in operation. In 2015 already, the classic K2i was purchased for joining standard glulam with lengths of up to 25 m. Hüsser Holzleimbau, however, subsequently specialized in timber engineering. The elements that need to be joined have according dimensions. So far, these tasks have been taken care of both manually as well as by means of an existing, smaller system. Due to rising demand, however, the work load became immense. „This is why we opted for Hundegger‘s new portal milling hub PBA-3. Furthermore, we wanted to take a step forward with regards to technology“ Martin , Hügli explains. He is the managing director of the glulam construction division at the Hüsser group. elements. More than 95% of our volumes are delivered to construction sites readily joined“ Daniel Ebert specifies. He is responsible for , the CNC division as well as projects at Hüsser Holzleimbau. Contrary to Ed. Züblin, the enterprise opted for a 1-portal-solution. And it is a mighty one at that. After all, it moves 25 t on rails almost soundlessly, and accurately to the millimeter. Seemingly effortless processing During the Timber-Online visit, a large glulam beam is being joined. Right outside the processing zone, the machine‘s operations can be observed on screen. The portal is gliding effortlessly past its bystanders, processing the elements in all ways possible: Sawing, drilling, milling, slitting – depending on the specification from the order preparation. The system is equipped with four units: a heavy-duty spindle with a driving power of 55 kW and fivefold processing, a deep-hole boring machine, a drill tower, and another 5-axis unit with 38 kW for a Second system, different structure The PBA-3 at Hüsser Holzleimbau is the second of its kind that Hun- circular saw blade with a diameter of 1100 mm. The control fetches the degger built. The first one can be found at Ed. necessary tools from the tool changer with 32 seats. With a hollow shank taper receiver, the Züblin in Aichach/DE. The Hüsser system, changing process takes virtually no time. The however, has some crucial differences comcompany is planning to make several additipared to its sibling in Germany. But more on ons to the tool units during the summer to this later. In general, Hüsser Holzleimbau is almost gain even more flexibility. „By now, we have exclusively processing glulam elements from been working with the PBA-3 for almost two years. During that time we found out which in-house production. In combination with a additional processing steps would be useful“ , Ledinek press, the production in Bremgarten Daniel Ebert, Hügli explains. Now is the time to implement is also capable of curved beams which the head of CNC at Hüsser Holzleimbau staff finalizes in the adjacent joining hall for those. Speaking of plans: The engineers at Hüsser use Cadwork to design and subseeach project. „We hardly sell any raw glulam „A software for several systems

7 quently transfer data to the program Cambium from Hundegger. „A huge advantage“ , Ebert emphasizes. „With this, virtually all operators can work on every Hundegger machine without lengthy prior trainings.“ Data are transferred from the office to the systems via the company-internal network. Another difference between this PBA-3 and the first one ever is the machine table – or rather the lack thereof at Hüsser Holzleimbau. „In cooperation with Hundegger, we developed support blocks that can be positioned any way we want. Vacuum suction cups hold the component in place. This way, processing elements...