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MC series

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MC Maize Chopper

MC 180 forage choppers silhouette

High output, low power requirement

KUHN MC maize choppers offer the unique combination of high output at a low power requirement. The choppers are not only designed to chop top quality forage but also offer you unmatched reliability. The MC range consists of 1, 2 and 4-row mounted choppers.

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By offering a 1-row, 2-row and 4-row machine, KUHN offers an effective and versatile range of 3-point linkage mounted maize choppers.
The power transmission of all maize choppers runs via the PTO drive shaft, V-belts and gears. This requires minimum maintenance. Several well-thought out design features make daily inspection, maintenance and cleaning easy and simple.
The 2-row MC 90 S TWIN has an extra overall weight of only 15% compared to the single-row MC 90 S. Therefore, it makes full use of the available tractor power, but leaves 50% less marks in the field. Power requirement is minimal: 55 HP is sufficient for chopping two rows in one single pass.
Fitted with two chopping units and two feeding systems, the 4-row MC 180 S QUATTRO is the ideal machine for professional users operating tractors from 90 HP upwards. The chopper meets the demands for high work rates without a massive investment in self-propelled machinery. All aspects have been designed to make your harvest safer and more efficient. The MC 180 S QUATTRO is equally suited for front and rear mounting.
MC 180 forage choppers at work

Your benefits

High-quality forage

Cutting discs of a KUHN Maize Chopper

Clean cutting

Clean cutting of the maize stems is the basis for an even intake. The KUHN system is tolerant of weeds and has a self-cleaning function. The adjustable counter knife between the discs maintains optimal cutting quality at any time. The cutting discs are hardened and have a special protective coating for maximum wear resistance.

Feed system

Two feed drums and a smooth and a toothed roller ensure that the crop flows in a straight line to the flywheel. This ensures that stems, cobs and husks are cut at right angles, to precisely the preset length of chop. The result is a homogeneous crop structure for top quality silage. An easily accessible shear bolt protects the maize chopper intake chain from damage whenever the feed drums are blocked by a foreign object.
Two feed drums and a smooth and a toothed roller ensure that the crop flows in a straight line to the flywheel. This ensures that stems, cobs and husks are cut at right angles, to precisely the preset length of chop. The result is a homogeneous crop structure

Consistent chopping length

The layout of the 4-drum intake system driven via the chopper wheel guarantees a consistent chopping length, independent of forward or PTO-speed. The MC Series maize choppers are adjusted to the most popular chop length of 4 mm. By installing a different drive gear, setting a chopping length of 6 mm is possible. To improve the opening of the kernels, the filling plate in the lower distribution housing can be replaced with a cracker plate.
The intake system driven via the chopper wheel guarantees a consistent chop length.

Low power requirement

The power transmission runs via the PTO drive shaft and V-belts.

Power transmission

The power transmission runs via the PTO drive shaft and V-belts directly driving the chopping wheel. Thanks to the lateral adjustment (21 cm) of the lower hitch bar, the maize chopper fits a wide range of tractors with widths up to 240 cm.

Sturdy flywheel

MC choppers feature a sturdy flywheel for an energy saving chopping operation. As a result of the special positioning of the chopping knives in relation to the counter knife, the angle of cut runs from outside to inside. The incoming maize stems are cut in one straight, single line and transported with minimum power requirement.
MC maize choppers feature a sturdy flywheel for an energy saving chopping operation.

Steel chute

The optimised steel chute provides low friction crop flow which can be controlled via adjustment flaps. Because of the low friction, the crop comes out of the chute with high velocity for even loading into the trailer.
The optimised steel chute ensures low friction.

Easy inspection and maintenance

For maintenance, the complete chopping unit can pivot backwards.

Inspection and maintenance

Inspection and maintenance on the KUHN MC maize choppers could not be easier or simpler. Daily routine maintenance is limited to the lubrication of two easily accessible grease nipples on the chopping wheel and the chain drive of the MC 90 S TWIN system.
Inspecting the chopping wheel can be easily done by lifting the inspection door on the side of the chopper. The complete chopping unit can pivot backwards for easier chopping wheel a feeding drum maintenance.

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Equipment

Adjustable flywheel speed

Adjustable flywheel speed

For harvesting ripe maize with very hard kernels, the standard flywheel speed of 1600 rpm can be increased to 1800 rpm by installing another V-belt pulley. Extremely hard maize kernels can easily be cracked if the flywheel speed is further increased to 2000 rpm. This is possible for the MC 90 S and MC 90 S TWIN.
Chute control

Chute control

The discharge chute ensures that the complete crop is blown into a trailer for transport. By using the hydraulic cylinder, the discharge chute can be rotated to fill the trailer evenly. This cylinder can be controlled from your tractor cab. In addition, the flap at the end of the discharge chute can be manually pivotted up and downwards for optimum filling and control. The flap control on the MC 180 QUATTRO is electric.
On the MC 90 S and MC 90 S TWIN, the discharge chute can be lowered manually to reduce the transport height, this is hydraulic on the MC 180 QUATTRO. In addition, a chute extension is available on the MC 90 S, MC 90 S TWIN and MC 180 QUATTRO.
Ribbed cracker plate

Ribbed cracker plate

The standard filling plate in the lower discharge housing can be replaced for a ribbed cracker plate for harvesting hard kernels. Both are delivered as standard.
Adjustable crop guide

Adjustable crop guide

The MC 90 S can be equipped with an adjustable crop guide to improve the crop intake into the feeding unit. The MC 90 S TWIN and MC 180 Q come standard with a crop guide.
Trailer hitch

Trailer hitch

For working in a one-man-operation, an optional trailer hitch on the MC 90 S and MC 90 S TWIN can be mounted. This hitch can be positioned in a lower or top position, depending on the trailer.
Support wheel

Support wheel

The standard support wheel on the MC 90 S and MC 90 S TWIN ensures a consistent working depth and an optimum weight transfer.
Intake combs

Intake combs

An optional set of aggressive intake combs can be mounted to ensure a smooth crop flow even in slippery or tall maize. (Standard equipment for the MC 90 S TWIN and MC 180 S QUATTRO).
Skid plates

Skid plates

The MC 180 QUATTRO can be adjusted with skid plates which help the machine follow the ground contours and acheive a consistent cutting height.
    MC 90 Twin two row chopper, chopping maize in a wagon.

    Specifications

    Technical characteristics

     
    Number of rows
    Row spacing (cm)
    3-point linkage
    Lateral adjustment capability (cm)
    Hydraulic remote control of chute
    Hydraulic chute folding cylinder for transport
    Control of flap
    Length without chute (m)
    Height (m)
    Height with lowered chute (m)
    Width (m)
    Chopping wheel(s)
    Number of knives
    Number of scoops
    PTO speed (min-1)
    Chopping wheel speed (min-1)
    Rotation direction
    Minimum PTO power requirement kW(hp)
    Maximum power requirement kW(hp)
    Primary drive
    Secondary drive
    Tyres
    Chopping length (mm)
    Theoretical maximum capacity
    Crop guide
    Extra feeder combs
    Minimum required tractor hydraulic connections
    Weight min - max (kg)
    MC 180 S QUATTRO MC 90 S MC 90 S TWIN
    4 1 2
    70 – 80 - 75 as standard (adjustable to 67 or to 71)
    cat. 2 cat. 2 cat. 2
    Hydraulically 12.5 to the left and 12.5 to the right side 21 21
    as standard as standard as standard
    as standard
    electrically manual lever / cable controlled manual lever / cable controlled
    2.35 2.09 2.09
    4.40 3.25 3.25
    3.15 2.20 2.50
    2 2.24 2.95
    2 1 1
    10 + 10 10 10
    5 + 5 2 5 (2 fitted, 3 not fitted)
    1000 540 as standard (optionally 1000) 540 as standard (optionally 1000)
    1600 1600 as standard (1800 or 2000 see options) 1600 as standard (1800 or 2000 see options)
    cw and ccw (see options)
    66(90) 22(30) 40(54)
    100(136) 88(120) 88(120)
    PTO drive shaft with freewheel clutch PTO drive shaft with freewheel clutch PTO drive shaft with freewheel clutch
    2 x 6 V-belts 4 V-belts 4 V-belts
    16,5/6.5-8 4PR 16,5/6.5-8 4PR
    4 (6 mm, see options) 4 (6 mm, see options) 4 (6 mm, see options)
    80 tons/hour 49 tons/hour 49 tons/hour
    optional as standard
    optional as standard
    4 (2 double acting valve) 1 double acting valve 1 double acting valve
    1265 - 1315 435 - 485 600 - 650

    Some models are not available in all countries.
    Please always check with your local distributor.

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    MC series

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    Media

    MC 90 Twin two row chopper, chopping maize in a wagon.

    MC in action

    MC180 chopping maize driven by front PTO of a tractor.
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