Home Forestry LLP are Sole Agents in the UK, for Alstor mini forwarders
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Alstor 850 Harvester
General
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The predecessor, the 840H, was Alstor's first clean harvester and quickly became popular with both forest owners and contractors. Thanks to its good performance and compact dimensions (70cm shorter wheelbase than the forwarder), it leaves perfect results in dense thinning with minimal ground damage.
With the Alstor 850H, we take the step towards a fully professional machine, built like a large machine but in a minimalist way to minimize complexity, maximize serviceability and operational reliability.
Driveline
With the Alstor 850H, we have worked hard to simplify and streamline the driveline to get more out of the engine and make the machine as easy to drive as possible.
The hydrostatic transmission is speed controlled which prevents the engine from being overloaded and maximizes traction versus engine power at any given time.
A traditional high gear is no longer available, but the machine always provides full traction when starting and the speed can then be adjusted completely steplessly 0-10km/h in both directions without stopping for changes. Permanent 8-wheel drive with the cardan means that you always have drive and brakes on all 8 wheels.
Lockable front and rear differentials provide significantly better turning radius in the woods than a rigid axle, while the ability to lock the differentials provides maximum passability in difficult terrain.
The machine is now equipped as standard with an automatic parking brake, which brakes the machine automatically when the drive pedal is released or if the engine is switched off
Rear
The rear of the machine comes from the 840H and is an appreciated and proven construction.
The substantial crane tilt of a whopping +25 to -12 degrees provides unparalleled accessibility and flexibility in the forest. The removable weights of a total of 920 kg give the machine fantastic stability when it is moved with trees in the unit.
The absence of a waist lock maximizes comfort in the cab, and the sturdy support legs provide maximum stability in difficult terrain if needed.
The crane is a Swedish-made Mowi parallel crane of 5.2 meters.