Optimum blowing speed
Crop delivery is achieved using specially designed blowing paddles fitted
to the outer radius of the flywheel.
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Utilising the much higher peripheral flywheel speed, these
paddles generate a strong blow, which is ideal for long reach side
loading into big trailers. On other systems, knives have to
perform two functions; cutting the crop and creating blowing
power. This creates an efficiency conflict in selecting the ideal
cutting and blowing speeds.
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Adjustable knives
Ten full length, tungsten carbide coated cranked knives ensure precision
cutting performance and long life. The knives are individually adjustable,
allowing new knives to be fitted without having to grind them to the same
depth as the old.
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Even feed
Uneven, lumpy swaths present no problems. Four rollers
with a unique interlinked levelling system ensure an even crop
flow is presented to the flywheel.
Powered from the flywheel shaft by a chain, gearbox and shaft
drive, the compression rollers have slip clutch protection. Feed
roller speed is controlled by the location of the drive belt in
the pulley grooves, and provides a choice of three chop lengths
when harvesting grass. Removing alternate flywheel knives doubles
chop length options.
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Schnittlängenwahl Feed and compression
Four rollers compress the crop and present it evenly to
the flywheel knives. Drive is via a strong chain from the flywheel
to the feed roller gearbox. From the gearbox, slip clutch
protected shafts drive the feed rollers.
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Variable chop length
A choice of three chop lengths is achieved by controlling the feed roller
speed - this is varied by locating the drive belt in one of three drive
pulley grooves. Removing alternate knives doubles the chop length options.
Corn cracker kit
This ensures that maize kernels are abraded to aid digestibility. A
two-piece grater
floor is easily fitted into the flywheel housing concave. Adjustable
breaker plates and additional masher bars attach to the flywheel itself.
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Instant feed reverse
Pottinger have developed a quick and effective feed reverse
system. The lower feed roller gearbox drive pulley pivots
hydraulically upwards, immediately disengaging the feed roller
drive. The face of this pulley then progressively meshes with a
rubber faced friction pulley, smoothly and quickly reversing the
drive. A well-proven system with no complicated components, it is
designed to operate at full speed and under full load and is a
fast reaction operation.
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