True wrapping intelligence

KUHN introduces a true innovation in bale wrapping with the SW 4014. This versatile self-loading square and round bale wrapper features a unique patented non-stop fully automatic wrapping function.


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The KUHN SW 4014 is a hybrid bale wrapper that can wrap large square bales, 80x50-130 cm, up to 200 cm in length, and round bales up to 150 cm in diameter.The versatile wrapper provides fast, cost efficient and operator-friendly wrapping. The laser-guided, patented AUTOLOAD function detects, loads, wraps and unloads bales automatically, creating a more ergonomic and stress-free working environment. The SW 4014 features a solid design and a hydraulic sliding frame that allows unique drive-through operation. This provides the ability to widen the wrapper for easy bale loading, outstanding stability and unmatched visibility of the wrapping process. The AUTOSWITCH function enables the wrapper to fold from transport position into field position with a single touch of a button on the ISOBUS terminal. ISOBUS, combined with KUHN’s INTELLIWRAP system provides excellent distribution of the film applied around each bale with further film savings.

Your Benefits

Non-stop, fully automatic wrapping

Non-stop wrapping with AUTOLOAD

The innovative AUTOLOAD function provides non-stop, fully automatic loading, wrapping and unloading of square and round bales without interference from the driver. AUTOLOAD detects approaching bales, automatically scans the length of the bale and sets the loading arms into the pre-load position, resulting in accurate loading, wrapping and unloading of the bale on the go. This leads to increased overall capacity and creates a more ergonomic and stress-free working environment during a long working day.

How does it work?

The AUTOLOAD function is based on Category II Laser technology. First the laser sensor, situated inside the top cover on the front side of the machine, is scanning the area ahead of the bale wrapper. In addition, a wheel sensor is placed in the left wheel which measures the speed, thus the distance until the next bale.

  1. Laser sensor is measuring ground level.
  2. Laser sensor has detected the bale.
  3. Laser sensor has detected the edge of the bale. Bale length measurement is started by counting pulses on the wheel sensor. Loading arms move to the pre-load position (based on the pre-defined bale width when setting the bale sizes).
  4. Laser sensor has detected the end of the bale. The bale length is known.
  5. Depending on the driving speed, the loading arms are activated at the right time to load the bale in the center of the rollers.
  6. While wrapping, it is possible to drive to the next bale.
  7. In case bales are dropped in ditches, under fences or even in corners of the field, the SW 4014 AUTOLOAD still allows you to load b

Design features with you in mind

Optimal versatility

The SW 4014 is capable of wrapping large square, medium square and round bales up to 1500 kg. Wrapping of round bales is possible without any additional equipment or mechanical adjustments. All predefined bale dimensions can easily be selected via the monitor.

Unique 'drive through' design

Thanks to its solid design with an incorporated hydraulic sliding frame, an extremely wide track is achieved for outstanding stability of the machine. This unique ‘drive through’ operation enables easy loading of the bale and excellent visibility of the wrapping process.

The AUTOSWITCH function enables the wrapper to fold from transport position into field position with a single touch of a button on the ISOBUS terminal. The wrapper has an operational width of 4 m in the field and folds to a narrow 2.5 m for transport.

Exceptional bale handling

The smart ‘drive through’ design of the SW 4014 guarantees easy (un)loading of the bales, from the front or going backwards, even when they are dropped in hard-to-reach locations. All bales are (un)loaded without the risk of damaging them or picking up soil contamination because of the two patented* pairs of steel rollers. To prevent film damage during transport, the SW 4014 is fitted with large mud guards. 19,0/45×17 wide wheels are optional.

Working convenience

To provide optimal working convenience, the SW 4014 has a smart feature that enables you to choose (automatic) unloading of bales in a selected position. You can choose to unload the bale with the knots on top for easier loosening of the twine and also quicker access to your feed after unwrapping the bale. Or, if required, you can unload on the short side for easy transport.

Easy maintenance and accessibility

The large side doors of the SW 4014 provide excellent accessibility for maintenance. Furthermore you can open the top cover and side doors without the need of tools. The SW 4014 can be equipped with an optional LED work light to have a better view of the wrapping process in the dark.

High-speed & intelligent wrapping"

Twin satellite design

The twin-satellite design ensures high-speed wrapping. The central driven satellite arms each hold one pre-stretcher with a 750 mm film roll. It rotates the bale applying the requested number of film layers while being protected by the safety arms.

The standard pre-stretchers are made of aluminium to avoid tack build-up from the film. Both outer ends of the aluminum rollers are cone-shaped to maintain the optimum width of the film and reduce the risk of tearing. The special ribbed profile of the aluminum rollers keeps air and water away from the film. The location of the pre-stretchers makes it very easy to change the film rolls. The standard pre-stretch of 70% is reached by a low-maintenance and low-noise gear transmission. An optional 60% pre-stretcher gear kit can be installed to change the standard pre-stretch to 60%, to adapt to difficult wrapping conditions.

Full wrapping flexibility

The wrapper is equiped with a high-speed double satellite with a boost function to increase the speed up to 40 rpm when travelling a forward speed of 5km/hr or higher. This results in a capacity of up to 100 bales per hour when applying 6 layers of film.

INTELLIWRAP allows greater management of your wrapping process. Continuously control the film overlap and required amount of wrapping layers (4, 5, 6, 7, 8, 9…) to match your local circumstances, crop conditions, and storage periods. An excellent distribution of the film around the bale applied with precise overlap, provides maximum efficiency and increased silage quality.

Film cutters

Once the desired number of film layers has been applied, the film is held firmly and cut. The well-known ‘scissor-type’ cutters hold and cut the film. Due to its design, the film is caught across the full width. The film is held with a clamp, stretched into one solid string, and then cut before the bale is unloaded. The clamp firmly holds the film ready for the next bale.


Technical characteristics

SW 4014
Square bale dimensions (width x height x length) (cm)80x50 - 100x200 120x60 - 130x200
Round bale dimensions (width x diameter) (cm)120-150 x 90 - 140
Maximum bale weight (kg)1500
Machine length (cm)470 (520 including self-contained LS hydraulic system)
Machine width (transport) (cm)250
Machine height (cm)285
Connectioncat.2 swivel headstock
ISOBUS compatible wrapper with INTELLIWRAPas standard
Loading systemtwin roller arms
Automatic loading function (AUTOLOAD)as standard
Lane adjustmenthydraulic operated via wrappers control box
Ability to wrap round balesas standard
Wrapping tableelectronic controlled 2 x 2 roller pair
Auto-levelling for begin positioning wrapping and unloadingas standard
Electronic controlled variable twin roller speed, for optimal wrapping of large rectangular square balesas standard
Satellite arm including 750 mm pre-stretcher, safety arm and hydraulic film cuttertwin satellite arm
Kit for 1/2 table speed to work with one roll of filmas standard
Kit for automatic stop by end of film / tearas standard
Pre-stretch ratioas standard 60%
Film roll magazinefor 10 rolls as standard
Minimum required tractor hydraulic connections1 single acting with free return
Oil flow and pressure required40-60l/min at 180 bar
Load sensing kitas standard
Road lightsas standard
Parking block kitas standard
Weight min - max (kg)2800 - 3400