Kuhn PRIMOR 4260 M Cut Control, the all-forage straw blower and feeder

The new PRIMOR 4260 M CUT CONTROL all-forage straw blower and feeder features exclusive, patented chopping equipment. This machine is therefore becoming an indispensable tool on ruminant farms with cubicles and deep-litter areas, on mixed farms (ruminants / indoor livestock), and also for users of mixer wagons who want to save time when re-cutting the strands. The main focus of the technical development of this machine is the versatility of the tool in daily use, without any change of equipment requiring lengthy adjustments.

Advantages:

- Loading function
The PRIMOR 4260 M CUT CONTROL has a capacity of 4,2 m3, equivalent to two round bales of 2,00 metres in diameter or one square bale up to 2,70 m. With its loading tailgate, you can load round bales completely independently, without needing an external loader. The powerful tailgate cylinder guarantees a lifting force of more than 1,2 tonne.

Once the tailgate is closed, you can also load the PRIMOR 4260 M CUT CONTROL with silage thanks to its rear flaps, which keep the body sealed. The dual tailgate control located at the rear of the body allows you to carry out all loading operations and cut the strings with a minimum of movement around the machine.

- Chopping function
The CUT CONTROL function for chopping the strands was developed to re-cut all strands: straw and hay. The operation takes place in the rotor thanks to the 44 large knives at the tip of the blade. The fully boxed rotor plate turns at a high speed of 620 min-1 (i.e. 180 km/h at the blade tip) in order to multiply the number of knife impacts on the forage.

The intensity of the re-cutting is adjusted with the hydraulic counter-knife function located in the rotor. Depending on the strand length you want, you can adjust the position of the hydraulic counter-knife as needed. With a single machine you can thus obtain different strand lengths without changing equipment or carrying out lengthy adjustments. From the machine's electric control and with the help of the position indicator, this operation is done safely and easily.

If a foreign object enters the rotor, protection is provided by retracting the knives. For greater rotor longevity, the rotor floor is made of K-NOX steel (an alloy combining chromium for stainless properties and ferrite for abrasion resistance).

- Bedding function
One of the primary objectives of the PRIMOR 4260 M CUT CONTROL is to deliver the bedding function with the same level of performance as a "classic" PRIMOR, namely throwing straw over a long distance without excessive friction on the product. This objective is achieved thanks to the ventilation paddles positioned between each knife of the rotor. When the hydraulic counter-knife is fully retracted, all the knives and ventilation paddles take on the geometry of a solid blade. Ventilation is at its maximum for throwing uncut straw up to 17 metres.

Farmers with both cubicles for dairy cows (requiring the product to be re-cut and thrown at the foot of the machine) and deep-litter areas for heifers can do the bedding with the same PRIMOR 4260 M CUT CONTROL.

- Feeding function
The PRIMOR 4260 M CUT CONTROL feeds all forages: silage, hay and wrapped grass. You keep the versatility of a straw blower and feeder. Its large-diameter all-forage tedder ensures a steady flow of product into the rotor. It is combined with a hydraulic regulating comb designed to spread the forage evenly across the full width of the body and therefore of the rotor.

The patented POLYDRIVE drive of the tedder offers the power of a mechanical drive via the inertia of the rotor, as well as the flexibility of hydraulics, with the option of disengaging it. When starting the machine, you can thus easily start the rotor first before engaging the tedder. The belt transmission guarantees quiet operation and reduced maintenance.