New Valmet head for thinning pros

  Komatsu Forest launches the Valmet 340 thinning head, effectively filling the gap between the top-selling Valmet 330 and Valmet 350.1 heads. The Valmet 340 is optimized for stands with a DBH between 10 and 25 cm (4-10″), combining low weight, smart design, and compact size with high performance. These qualities make this an effective head for demanding thinning in dense forests.

The head is designed to maintain a continuously high production rate. As such, no vulnerable components are used, it has a compact hydraulic valve for a minimum of hosing, and all hose connections feature solid protection. What’s more, it has moving connectors for hose feeds and all connections use ORFS seals, which reduce environmental impact by minimizing leaks and increase production by improving head reliability. The bar feed is placed inside a fully-integrated unit that is both compact and robust.
Optional extras include multi-tree accumulation, enabling several trunks to be handled simultaneously, which increases processed volumes considerably, especially in thin stands. The multi-tree accumulator function is integrated with the link, a unique feature for a head of this size that provides improved functionality and lower weight.
Although the Valmet 340 is optimized for thinning, it can also be used to harvest considerably broader trees. The unique feed roller mounts automatically angle the feed rollers to suit the trunk size, thereby providing the necessary lifting power. The feed rollers, which are available in steel and steel/rubber, feature proportional pressure, ensuring a gentle feed. The delimbing knives have long cutting edges for effective delimbing and closely follow the tree trunk. Moreover, the head has a moving upper knife that, together with the other functions, such as the two-wheel feed, provides a minimum of trunk damage even in forest stands with crooked trunks. The tilt link is also fully adapted to the Valmet rotator, which has a simple and robust design with a lower build height than usually found on the market.
The head is available with both color marking and stump handling. For reliable and durable operation, the paint tanks are located inside the tilt link.

Valmet 340 highlights

• Multi-tree accumulation (optional). Integrated with the link and considerably increases processed volumes.
• Proportional pressure for fast yet gentle trunk feed
• Delimbing knives with long cutting edges and a moving upper knife for effective and reliable delimbing
• Streamlined design with no vulnerable components minimizes downtime
• Highly-effective low-loss hydraulics and compact hydraulic valve minimize hosing
• ORFS couplings, Valmet rotator, solidly protected hose connections, moving connectors for hose feeds, and more for great reliability
• Weather-sealed main hood folds back for quick and simple service

• Unique rack and pinion solution for maximum power throughout the entire cutting cycle
Important accessories

• Color marking with two colors. Well proven and reliable system with well protected paint tanks.

• Feed wheel. Available in steel as well as steel/rubber for different types of stand.