PZ 320 silhouette

High output with perfect cutting performance

Suitable for medium and large-sized farms, the PZ 320 stands for high-capacity and high-quality mowing. Improve the quality of your forage and reduce downtime in every condition by using the exclusive LIFT-CONTROL suspension system.

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The PZ 320 has a direct driveline with an integrated slipclutch and freewheel. For stable transport the machine has a folding transport position of 120 degrees therefore the weight of the machine is placed more evenly between the rear wheels. The foldable front cover and FLEXPROTECT side guards for easy access to the drums, ideal for the daily inspection and maintenance of the mower unit.

The PZ 320 is fitted as standard with LIFT-CONTROL. This hydro-pneumatic suspension system continually ensures a uniform ground pressure, a lower pulling power requirement and enables non-stop mowing.
PZ 320 at work

Your benefits

Cleverly designed components for optimal performance

Flat sided drums

Flat sided drums

Round drums do not transport well, that is why KUHN uses drums with two flat sides for optimal crop transport without the risk of blockages. Movement of the crop has an impact on the mowing quality. It is for this reason that KUHN has chosen to use screw-on transport strips.

Continuous height adjustment

The continuous cutting height adjustment on top of the mower allows you to set the optimum cutting height in changing conditions in an easy and safe way. This allows you for example to mow a little higher in the autumn in order to reduce soil contamination in your forage.
Continuous cutting height adjustment

Freely rotating saucers

The freely rotating saucers have a major advantage. In uneven ground conditions, the saucer 'rotates' over the ground rather than sliding, thus protecting the stubble and reducing PTO power requirement. The positive effects of reduced crop contamination will be particularly noticeable on sensitive soils such as boggy land.
The saucers of the drum mower can rotate freely

Quick knife exchange

Using the special tool, you can push the knife holder down and simply replace the knifes. It is a quick and secure system.
Using a hook shaped tool, you can simply replace the knifes.

Perfect swath formation

The proven design with its uneven sized diameter knife plates has great benefits for the front mower: a clean swath formation, less crop contamination, perfect ground following and high throughput with a low PTO power requirement.

The arrangement of the drums has the added advantage that it is fuel-saving. Swath discs are available as an option.
The uneven sized diameter knife plates create a clean swath formation.

Safety and comfort when you need it

On encountering any obstacles, the material of the side cover bends, without breaking or damaging the mower.

FLEXPROTECT side covers

Damage to the side covers is now a thing of the past. The KUHN FLEXPROTECT flexible side covers add a new dimension to these mowers with their design made of polythene. On encountering any obstacles, the material of the side cover bends, without breaking or damaging the mower. The material then returns back to its original shape.

LIFT-CONTROL: not just a suspension system

Improve the quality of your forage and reduce downtime by using the exclusive LIFT-CONTROL suspension system. LIFT-CONTROL is much more than just a suspension system with a nitrogen accumulator replacing the traditional spring. It is an active and dynamic hydro-pneumatic suspension system making use of the kinetic forces that act on the mower unit.

  • The clear benefits of the KUHN LIFT-CONTROL are: Constant ground pressure
  • Excellent terrain following
  • Non-stop safety breakaway
  • Less crop contamination
  • Minimal damage to the turf

It is when mowing on slopes that the LIFT-CONTROL system shows all its advantages and is reflected in a distinct reduction of fuel consumption and higher working rate.
LIFT-CONTROL is a suspension system with a nitrogen accumulator replacing the traditional spring. The system is making use of the kinetic forces that act on the mower unit.

Adjust pressure easily and accurately

Because time is money, adjusting the weight-reducing pressure takes just a few seconds! Through the accumulators, the ground pressure can be adjusted with great precision to adapt to the harvesting conditions, easily from the tractor seat. Therefore, on wet land minimal pressure on the ground prevents crop contamination. Lateral force, wear on the drums and tensile strength will be significantly reduced. As the force on the mower unit increases, the LIFT-CONTROL system automatically raise the unit.The greater the force, the lighter the mower unit gets.
Through the accumulators, the ground pressure can be adjusted with great precision to the harvesting conditions, easily from the tractor seat.

Easy access to the drums

The front cover can be folded away, allowing easy access to the blades. This is perfect for daily inspections and mower maintenance.
The foldable front and side protective covers can be lifted upwards, convenient for daily inspection and blade exchange.

Quick and easy maneuverability

The PZ 320 mower articulates for excellent ground contour following on uneven terrains

Articulation

The PZ 320 mower articulates for excellent ground contour following on uneven terrain at all times. This makes the mower suitable for mowing on slopes and banks up to 30° .

Road transport

For stable transport the machine has a folding transport position of 120°, the weight of the machine is placed more evenly between the rear wheels. This increases the safety and comfort in transport significantly and the tractor lights are always visible. A renewed geometry between the frame enables a low transport height of 3.6 m, with a ground clearance of 40 cm.
For stable transport the machine has a transport position of 120°, the weight of the machine is placed more evenly between the rear wheels.

PZ 320 drum mower mowing grass in combination with a front mower

Specifications

Technical Characteristics
 
Working width (m)
3-point linkage
Adjustable lower link pins
PTO speed (min-1)
Minimum required tractor hydraulic connections
Minimum PTO power requirement kW(hp)
Transport position
Headland position
Headland cylinder
Suspension
Ground pressure compensation
Safety breakaway system
Primary drive
Secondary drive
Number of drums
Number of blades
Cutting height adjustment
Cutting height range (mm)
Average swath width ca. (m)
Warning signs and lighting set
Weight min - max (kg)
PZ 320
3,10
cat. 2
as standard
540 (1000 optional)
1 single and 1 double acting valve with floating position
55(75)
hydraulic folding 120° vertically
hydraulically
as standard
side
Hydro-pneumatic
hydraulic NON STOP “LIFT-CONTROL”
PTO drive shaft with free wheel and slip clutch
intermediate PTO drive shaft
4
12
continuously
36
1,30
optional
750 - 800

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