Rottne H8E is a significant upgrade of the popular predecessor Rottne H8D

Story Highlights

• Rottne Industri AB
• harvester pentru rarituri Rottne H8E
• utilaje forestiere

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The versatile harvester has been updated on several points and is equipped with the new and stronger crane, RK75, with optional boom control system. The first machine from the upgraded series of the Rottne H8E left the production facilities in March 2022.

„On the outside, Rottne H8E looks almost like Rottne H8D, but on the inside there are a lot of improvements and a lot of new and advanced technology”, said Mathias Paulsson, Engineer of the Control Systems at Rottne Industri AB.

The crane, with all its mechanical upgrades, makes a big difference and it was when we developed it, we have seen the opportunity to upgrade the entire machine. RK50 has been around since the beginning of the 2000s. Now it will be replaced by RK75 with a lot of improvements and innovations. In short, all the benefits of the older crane have been retained and more advantages have been added. Everything from hardware to software has been reviewed in detail in order to produce a crane that will make both the work and the service easier.

New crane RK75
„The new crane has a completely new turntable that makes it more efficient with better durability and reliability. Compared to its predecessor, the crane has been improved in all respects, which makes it stronger and with higher lifting power”, said Mathias Paulsson.

Among other things, it has a built-in position sensor in all cylinders that the control system recognizes. The boom control is moved at the driver’s command (out, in, up and down) and the system runs the extension automatically.

With the launch of the Rottne H8E, Rottne Industri is now taking another step forward in the development of flexible forest machines for efficient thinning work.
„We proudly launched our first machine with a boom control developed here at Rottne. This, together with other improvements, strengthens our leading position in sustainable thinning for professional forestry” – Tobias Johansson, CEO of Rottne Industri AB.

Improvements of new crane RK75
New slewing house with many improvements, including roller bearing on crane slewing ring.
Increased gross lifting torque (90kNm).
Increased torque (20kNm).
Higher lifting height.
End-position damping on lift and outer cylinders as well as crane slewing.
Improved hose and pipe routing, central lubrication, and crane geometry.
Rotator H101, also on the Log Max.
Updated extension profiles and slide pads.
Improved service accessibility.
Improved control of the crane tip.
Dynamic speed during crane slewing.
Dynamic speed during crane lowering.