No fear of drum damage

Komptech presents a new contrary-protection design for the Chippo. If a massive contrary overloads the blade, the blade mounting swings away to protect it.

Press Release, June 16, 2014

The mobile Chippo drum chipper doesn't always have the luxury of ideal working conditions. For example, with forestry residue it is often not clear where the material is from and what it might have in it in the way of large stones or big pieces of metal.
Despite the Chippo’s innovative blade mounting system, intended first and foremost to ensure ideal chipping quality, in the past large contraries could damage the blades to an extent Komptech was no longer willing to accept.
The company therefore looked carefully at the issue and developed a solution to address it and developed a new contrary resistance feature for the Chippo.
When the blade encounters a contrary it can't deal with, a shear bolt in the blade mounting gives way so that the blade can swing away an into the drum. In combination with economical blades, this effectively reduces downtime to a minimum.

Innovative and effective
Contrasting with the existing contrary safeties of conventional chippers on the market, for the Chippo there is now a new optional drum with rotating blade mountings. The concept was adopted from the high-speed Axtor shredder, so it has already proven its viability in several years of use.
The blade mountings are held in place by shear bolts. A contrary exceeding the design capacity causes the bolt to break, allowing the entire blade mounting to rotate into the drum and protecting it from further damage.
In combination with economical quick-replacement blades, this protects the entire chipping unit from large contraries as well as smaller, wear-causing impurities like stones and other soil components. Also the material discharge is adapted to coarser wood chippings and is done exclusively by a conveyor belt.

User benefits
This new version of the Chippo offers notable benefits to users. They can save substantially on costs when working material with high contrary content, which can otherwise cause serious damage to machines.
For one thing, fewer components are damaged and for another, those that are damaged can be replaced quickly, reducing downtime to a minimum.
For contract service providers, the new system offers the great advantage that they can continue to work with up to five blades retracted, so they can finish up the job. Blade mount changes are quick and easy, and can be done on-site.
With this contrary protection design, Komptech has made another advance in efficient, quality-conscious chipping: Contraries are a fact of life, but the damage they do can be greatly reduced!