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WIN woodworking INTERNATIONAL 2022/4

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WiN – woodworking INTERNATIONAL is the international magazine for the woodworking industry. We report on all aspects of woodworking from board materials, wood treatment to machines, tools and technical know-how, from timber engineering supplies to the latest developments in technologies and markets. We address factory managers and production engineers directly, and thus ensure coverage of the decision makers within the industry. Circulation is worldwide with special emphasis on the most important growing markets. An increasing share are subscriptions and requested copies. Our online-section will further be expanded according to reader requests. WIN – woodworking INTERNATIONAL is published in English.

USER REPORT 2017 for

USER REPORT 2017 for grinding the hook, clearance and face of saws from 80 to 1300 mm (3 to 51 inches).” The operating concept with the new multifunction handwheel on the CHP1300 makes work significantly easier and faster than ever before. The axes are selected and moved by only one module, which helps to eliminate operator error. The handwheel is also used as a potentiometer to be able to carry out speed adjustments in automatic mode whilst the automatic adjustment of the hook angle and clearance angle through digital detection avoids adjustment errors. Increasing automation While many machines at PSAWS already provide automated loading/unloading and the VOLLMER ND230 three carriage system has been facilitating the automation of up to 250 saw blades from 100 to 630 mm for a number of years on the CHD270 24-inch capacity machine, the company never stands still. As Jordan Chynoweth continues: “We have changed the automation system on the 2012 CHD270 machine from the ND230 to the larger capacity ND360. This really takes automation to the next level.” The ND 360 handling system takes the previous 3-station system up to 6-stations, providing the capacity for up to 550 circular saw blades to be loaded automatically. Not only has the ND360 increased automation capacity from 250 to 550 saws and the maximum diameter capacity from 630 to 840 mm diameter, but it also permits the integration of up to three grinding centers. Something PSAWS has fully exploited by investing in 2019 in a VOLLMER CHF270, a machine for grinding the tooth sides of carbidetipped circular saw blades that will complement the CHD270 that automatically machines tooth faces and tooth tops of carbide-tipped circular saw blades. “We updated the existing Grind Center by adding the CHF270 side grinder and replacing the ND230 loader with the larger ND360, increasing the number of carts to 6 and increasing the lifting capacity to 32” diameter blades. Both the CHF270 and ND360 were installed at the same time.” The ND 360 handling system has four CNC controlled axes and its double gripper system guarantees extremely quick and stable changeover times. Furthermore, the ND360 communicates with each machine to ensure complete autonomy of the complete process. Alluding to this, Jordan Chynoweth continues: “We upgraded the automation system to add capacity as well as the facility for larger blades up to 840 mm diameter. The investment in the VOLLMER CHF270 that was added to the cell in 2019 was for us to target a new market audience. The CHF270 allows us to build a better saw blade and gives us extra capacity.” “By adding the CHF270 to the existing CHD270+ND360 cell, we can run the CHF270 ‘around the clock’. Regardless of whether the business expands or contracts in the future, our level of automation perfectly poises our business to deal with any fluctuation in demand. In our area, skilled staff is also a challenge and the cell somewhat insulates us from these concerns. We are so convinced by the VOLLMER machines and the automation that we have recently added a third machine to the cell earlier this year.” The future Regardless of the global COVID pandemic, the business has remained relatively strong through 2020 for PSAWS and the company has re-affirmed its commitment to customer service, ordering an additional two VOLLMER machines that arrived in March 2021. Discussing the machines, Jordan Chynoweth states: “We have ordered a CHD271 machine that was incorporated into the existing CHF270, CHD270 and ND360 cell to deliver complete automated production autonomy. Before COVID took hold in 2020, we ordered another VOLLMER topper/facer for the ND360, the CHD271 machine completed the 3 machine grinding center. The CHD271 was installed this year and this version has many updates compared to our other CHD machine. The CHD271 has the (optional) notching wheel installed. We also had a major 3-axis rebuild completed on our existing CHD270 by the VOLLMER techs. Giving us more years of service.” Referring to the CHD271 acquisition, VOLLMER of America Regional Sales Manager, Mr. Shaun Loveless adds: “The CHD271 is a variant of the CHD270 where the saw carrier has been completely re-designed, and the arbor has dampening incorporated. This reduces the existing tolerance of the machine from +/-5 microns to considerably less. Whilst this level of precision will be more relevant to saw production for the metal cutting sector than the woodworking industry, PSAW customers in both industry segments will benefit from the outstanding level of precision.” As well as the CHD271, PSAWS also had a CHF1300 arriving early in 2021. Furthermore, the cold saw business has continued to grow, even through the COVID pandemic. “During the uncertain COVID months of 2020, we updated our existing Schmidt Tempo Freestyle CNC grinder with the Loroch Evolution machine, which was installed in August 2021 with filtration and chiller.” Concluding on this, Jordan Chynoweth says: “The CHF1300 complements our existing CHP1300 and supports us as we expand our business in the niche area of large saw blades. We are now servicing and manufacturing tens of thousands of saw blades a year with a large number of these blades being manufactured on the VOLLMER machines. As a company, we love VOLLMER machines, and the service has always been excellent. Technologically, there is nothing in the industry that compares to the VOLLMER machines and this is demonstrated in our service, quality, productivity levels and also our ability to consult with our customers and develop blade geometries and solutions according to their exact needs. We always reinvest in our business and VOLLMER will always be part of the investment strategy.” www.vollmer-group.com 12 No. 4 • November 2022

USER REPORT GELO Holzwerke GmbH relies on waste wood processing from Vecoplan at the Wunsiedel Bioenergy Park Sawing always produces shavings and chips Making the best possible use of local natural resources and networking them with each other – that’s one of the core concepts pursued by the Wunsiedel Energy Park. WUN Bioenergie is a joint venture of the SWW Wunsiedel GmbH and the GELO Sawmill from Weißenstadt. GELO primarily manufactures from building or construction timber, available in abundance in the Fichtel Mountains. The waste wood in the energy park is processed into pellets, which are sent to a large biomass combined heat and power plant (CHP). The sawmill operator relies on high-performance shredding and conveyor technology from Vecoplan to process the waste wood for this purpose. GELO Timber has built the world’s most modern, small-dimensioned wood sawmill in Wunsiedel in the Fichtel Mountains. “The sawmill industry experienced strong cut-throat competition between 2008 and 2018,” reports Wolf-Christian Küspert, owner and Managing Director of the GELO Sawmill in Weißenstadt, Upper Franconia. “About 30 % of the timber companies disappeared from the market, and those that managed to survive lost a fair amount of ground. This also created an enormous investment backlog in the industry, which is only now being gradually cleared.” Küspert took over the family business from his father in 2003. The company was founded as a sawmill in 1898. With around 600,000 cubic metres cut annually, it is now one of the largest wood processors in Germany and part of a state-of-the-art wood processing industrial site. “We provide different finishing steps on site, so our customers get everything from a single source,” says the Managing Director. In 2011, the company founded the WUN Bioenergie GmbH in Weißenstadt together with the Wunsiedel Public Utilities (SWW). With its attached biomass CHP, the subsidiary produces energy from renewable and, above all, regional sources. No waste is produced at GELO because the trees are entirely recycled: Wood chips generated during production end up in the pulp industry. The sawdust is pressed into pellets that provide electricity and sustainable heat for regional households. “We have constantly expanded the Weißenstadt site,” says Küspert. “However, we reached our limits in terms of space.” The logical solution for continued growth was a new site – an ideal location was found in Wunsiedel, just a few kilometres away, and the new energy park there soon hosted a CHP and a pellets facility. The wood processing company built the GELO sawmill in the energy park – probably one of the few German greenfield projects constructed in recent years. The smell of freshly sawn wood is in the air. Wolf-Christian Küspert points to the new hall. “We have built the world’s most modern smalldiameter timber sawmill here,” he says. Smalldiameter wood is an excellent timber with firmly intergrown branches. With this project, the company also supports the increasing amount of forest conversion, which is occurring because climate change is causing older trees to die earlier and regrowing trees have to be felled more quickly. “The wood has a top diameter of about 25 centimetres or less,” Küspert explains. “Small-diameter wood always means a lot of waste wood, and that’s because the smaller the diameter, the higher the percentage of waste wood when we saw out a rectangular crosssection.” The sawmill in Wunsiedel processes mainly spruce – around 350,000 cubic metres per year. Efficient processing of waste wood The waste wood falls directly from the sawmill onto the conveyor system, ready for the next stage of pellet production. To prepare the sawdust and wood chips for pellet production, GELO Timber relies on Vecoplan – as it has done for years in Weißenstadt. Vecoplan, the specialist for processing residual materials, is headquartered No. 4 • November 2022 13

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