2017 International Forest Industries Magazines October November 2017 | Page 40

Strong grip, powerful feeding and fast sawing are packed in a robust and reliable package that can be fitted into various tracked carriers Janne Loponen, Ponsse The Ponsse harvester head H600 in the mid-1980s, pictured with company founder,. Einari Vidgrén Ponsse has a long history of making harvester heads. The very first were manufactured in the 1980s and, ever since, each harvester head model has been designed with a focus on efficiency, durability and ease of maintenance. Each model is characterized by its simple and strong structure. Ponsse harvester heads are built to meet the demands of the roughest conditions and thanks to the wide range, the manufacturer can offer solutions from rubber- wheeled harvesters to track-based machines. The Ponsse harvester head range offers 11 modern harvester head models, which are suitable for various uses from thinning to final felling and processing. Their high feed power and fast economical sawing result in extreme efficiency. As each harvester head can be adjusted according to tree and base machine properties, working is easy and the harvester head has a long service life. Moreover, Ponsse´s in-house developed and manufactured Opti information system guarantees measurement accuracy in cutting. “All our harvester heads of different sizes are also suitable for the multi-stemming of energy wood and pulpwood without any optional equipment,” says Janne Loponen, Product Manager for Ponsse Harvester Heads. “This eliminates additional costs, servicing and weight. The frames of our harvester heads are machined after the welding assembly. This guarantees the highest quality wi th excellent precision. “Durable hoses, well-designed hose routing and strong delimbing knives are important features of Ponsse harvester heads. In addition, the automatic Ponsse CT+ chain tensioner and the grease lubrication system for the saw chain are available for all harvester head models except H10 where saw unit is Hultdins 300. “For H7 and H8 models a stronger HD version is available for track-based harvester installations and can also be used in larger wheel based harvesters. The H8, H8HD and H10 models can be equipped with a top saw and find end sensor for even more efficient logging.” H8HD AND H10: modern heads for the most demanding conditions Loponen is very proud of the latest model in Ponsse harvester head The Ponsse H8HD is a modern harvester head for CTL and processing 38 International Forest Industries | OCTOBER / NOVEMBER 2017 family, the H8 HD, which is a heavy- duty harvester head for felling and processing of hardwood and softwood in tough conditions. Thanks to the modern and optimized design of H8 HD, the weight of the harvester head is low, making it possible to use it on the Ponsse Bear, wheel-based harvester and most track-based machines. Low weight also enables lower fuel consumption and easier handling, especially in processing operations. “Strong grip, powerful feeding and fast sawing are packed in a robust and reliable package that can be fitted into various tracked carriers,” Loponen said. The H8 HD has a wide feed roller geometry that supports even the largest stems with feed rollers instead of delimbing knives. This allows a lower pressure to be applied by the knives, improving fuel economy and feeding speed as well as measuring accuracy. The H8 HD is available with a top saw for processing curvy trees with big branches. Processor delimbing knives are longer than standard knives for picking logs more easily from a pile, Loponen added. The other newcomer, the H10 processing head, offers unbeatable Ponsse quality and productivity