Thanks to Pottinger’s ongoing refinement policy the
MEX VI forager has gradually evolved to become widely acknowledged as one
of the best throughput and most reliable trailed flywheel forage
harvesters available. Strongly built to withstand punishing workloads, it
performs equally well in grass or maize crops.
A choice of drive speeds means that the MEX Vl is suitable for tractors
with a PTO output from as little as 85hp right up to a maximum of 200hp.
MEX VI throughput excels - satisfying the most demanding requirements with
superb efficiency and reliability.
|Optimum blowing speed
Crop delivery is achieved using specially designed blowing
paddles fitted to the outer radius of the flywheel.
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
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.
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.
This device affords a high level of protection against
damage caused through ferrous foreign objects entering the
flywheel. If the magnetic field generated in the
lower front feed roller is interrupted, the current is switched
off causing the relay to close. The feed drive stops and by
switching to reverse - disgorges the crop along with the tramp
metal. An anti-magnetic auger is fitted to the forager’s pick-up
header to prevent any interference with the sensor function.
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
|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.
Simple knife replacement
Variable knife adjustment allows replacements to be fitted easily, with no
excessive grinding needed. Sharpening takes only a few minutes - achieved
by simply reversing the direction of the flywheel and winding in the
Corn cracker kit
This ensures that maize kernels are abraded to aid digestibility. A
floor is easily fitted into the flywheel housing concave. Adjustable
breaker plates and additional masher bars attach to the flywheel itself.
||Instant feed reverse
Pöttinger 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.
Control of the chute, feed reverse mechanism, header lift
and trailer hitch is at the operator’s finger tips. The central
fully electrohydraulic control system is operated from the tractor
cab by way of a clearly laid
out control box. Supply to this fully hydraulic system is via a
single and return or double acting spool valve and one electrical
connection. No potentially troublesome electric motors are used.