Large Square Balers SB 890

Perfectly bound bales in all conditions

Thanks to its design, the KUHN SB 890 performs at a high level in all crop conditions. The double knotting system guarantees perfectly bound bales in all conditions.

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With today’s narrow harvesting windows, you need a large square baler that brings increased productivity, without compromising on density and bale shape. Designed to set new standards in capacity, bale shape, uptime and running costs, the KUHN SB series is here to deliver.

The KUHN SB 890 is a double knotter large square baler in the 80 x 90 cm segment. The baler is designed with simple, yet efficient techniques like the INTEGRAL ROTOR and POWER DENSITY that produce rock-hard, perfectly shaped bales. The SB 890 is capable of working in various crops such as silage, hay, straw, lucerne, maize straw and sugar cane leaves. Where crop cutting is required, the 15-knife OMNICUT system, with integrated cassette system for easy knife access, will do the job. There is also a non-cutting model available. All main intake functions are protected by self-resetting cam-clutches so shear bolt replacements are a thing of the past.

Consistent, dense and high-quality bales

The pre-chamber system ensures consistently filled flakes and results in heavy, square-edged bales.

POWER DENSITY - The KUHN Solution

Consistently shaped bales provide more than just aesthetic appeal. A dense, consistently filled bale represents quality in every form. Square bales are easy to handle and stack. In addition, they are much more stable during transport than a poorly formed bale. A perfect square-edged bale reduces the risk of air entrapment during wrapping. This stimulates conservation of the bale and ensures a better feed quality.

The KUHN POWER DENSITY system, a single feeder fork design, proves that a well-engineered active pre-chamber filling system can eliminate complexity. This pre-chamber system ensures consistently filled flakes and results in heavy, square-edged bales regardless of the swath condition. The single feeder fork combines two functions into one mechanism, eliminating unneeded components and complexity and resulting in lower maintenance cost.

POWER DENSITY - How does it work?

The INTEGRAL ROTOR actively delivers the crop to the pre-chamber.
The feeder fork (blue) actively fills the pre-chamber.
The single-acting feeder fork continues to form the bale flake until the measuring plate (red) is pushed back with a predetermined force.
Once the measuring plate is pushed back, it activates the second function of the feeder fork system. The fork makes a different movement that empties the pre-chamber and pushes the perfectly formed flake into the bale chamber.

The bale chamber

With the 3.4m long bale chamber of the SB 890, there is plenty of space to form a perfect bale. The combination of aggressive retainers and a specific pressure door shape brings an aggressive compaction and gentle expansion of the bale. 46 plunger strokes per minute result in a high compaction capacity. The plunger is guided via 4 large rollers with a diameter of 125 mm for maximum service life.

With the 3.4m-long bale chamber of the SB, there is plenty of space to form a perfect bale.

The double knotting system

The SB 890 is equipped with a double knotting system. While baling, an upper (blue) and lower (red) twine is fed to the bale. Because the twine is not slipping around the bale, there is no tension on the twine during the bale formation.
Step 1: As the bale reaches the desired length, the needles (grey) are activated and move upwards towards the knotter to start the knotting cycle. In this first step the bale is finished with the first knot.
Step 2: Once the first knot has finished the bale, the second knot connects the upper and lower twine again so the next bale can be formed without stress on the twine during knotting.

The knotting process is monitored directly from the terminal, providing the driver with accurate information on twine tension during the baling cycle. An alarm goes off if an issue arises, allowing the driver to take action and prevent downtime accordingly.

Two massive hydraulically driven turbo fans are equipped as standard and deliver optimal knotter cleaning performance in the most challenging and dustiest conditions.

Optimal crop intake to meet your needs

With a pick-up width of 230 cm, the baler is capable of working in all swaths

Optimal crop pick-up

The unique crop guard design, in combination with a high torque on the INTEGRAL ROTOR and on the feeder fork driveline, ensures a high intake capacity while offering extreme endurance. The balers make use of a 2.30 m wide cam tracked pick-up with no less than 5 tine bars, in order to allow the pick-up to run at a lower speed. Consequently, an excellent raking job and the highest versatility in various crop conditions is guaranteed.

To better meet your operation's specific needs, there are two intake options available for the SB 890. Select from one of our patented INTEGRAL ROTORS. The OPTIFEED non-cutting rotor or the 15-knife OMNICUT cutting rotor.

INTEGRAL ROTOR Technology

Available across the entire KUHN square baler range, our INTEGRAL ROTOR technology can be found on OPTIFEED and OMNICUT models. This simple, maintenance-free intake system guarantees an enormous throughput capacity at all times. The short distance between rotor and pick-up tines maintains consistent crop flow. The design of this force-fed intake makes higher forward speeds possible for increased productivity and reduced crop damage. The INTEGRAL ROTOR has rotor tines made out of Hardox® wear plates to offer excellent durability in abrasive crop conditions.

All KUHN balers, cutting or non-cutting versions, are equipped with the INTEGRAL ROTOR system.

POWER FEED ROLLER

Whether you are baling dry straw, hay or wet silage, the POWER FEED ROLLER allows you to take capacity to the next level. Difficult crop conditions or inconsistent swaths could pose a challenge for an intake rotor. With the KUHN POWER FEED ROLLER this belongs to the past. This driven crop roller actively follows the height of the swath. As a result, the crop is slightly compressed and evenly distributed when entering the intake rotor. Inconsistencies in the crop flow are smoothed out, delivering a steady crop flow towards the rotor.

Peak loads as a result of irregularities in the swath are avoided. The smooth and steady crop intake ensures a reduced power requirement and a smooth running machine. Moreover, wear on the machine is reduced as less strain is applied on the intake.

Your benefits are:

Unrivalled overall capacity
Excellent crop guiding in different crops and swath sizes
Less power peaks in the intake system
Smooth running of the machine

The KUHN POWER FEED ROLLER is a driven crop roller which enables a steady crop flow

Non-cutting: OPTIFEED rotor

The 48 cm diameter OPTIFEED rotor design, where rotor tines - made out of Hardox® wear plate - and auger function are combined on one shaft, helps even out the swath by spreading the crop evenly for consistent bales every time. When crop cutting is not required, the OPTIFEED system ensures a controlled and consistent crop flow to the pre-chamber. With the rotor, an additional level of protection is given to the machine.

The 48 cm diameter OPTIFEED rotor design, where rotor tines and auger function are combined on one shaft

Cutting: OMNICUT 15 knifes (OC 15)

The OMNICUT 15-knife rotor (OC 15) offers a cutting length of 45 mm. The KUHN patented rotor tine shape ensures a low power requirement and a perfect cutting quality. The knives, individually protected against overload with a spring, can be changed easily with the standard integrated cassette system.

Extreme robustness, durability and user comfort

Gearboxes and shafts ensure a perfectly synchronised machine with easy maintenance.

Heavy-duty driveline

Perform at maximum capacity with a highly secure intake system. Synchronised drive of components is made by gearboxes and shafts. This ensures a perfectly synchronised machine with easy maintenance. The heavy-duty driveline features self-resetting cam-clutches. The benefit of these clutches is that they offer the possibility to use the machine at maximum capacity without worrying about time consuming shear bolt replacements. The driveline layout is simple, clean, and easy to service and maintain while minimising the overall number of moving parts.

Instant protection

To use the machine at maximum capacity, a flawless protection system is required. All main intake components of the KUHN large square balers are fitted with a cam-type clutch. With this non-stop safety system you can unblock the machine from the operator seat, in the event of an overload. The pick-up, INTEGRAL ROTOR, main drive and feeder fork are protected with cam-type torque limiters, which are automatically activated in the event of an overload. The respective cam clutch then activates and the intake is stopped. The clutch re-engages when the operator reduces the PTO speed.

All main intake components of the KUHN large square balers are fitted with a cam-type clutch.

Smart design for more user convenience

The design offers perfect accessibility to the inside of the machine during daily inspection and maintenance. For more safety, the knotter deck is equipped with solid stairs and a safety railing. The safety railing can be folded down easily to reduce the height of the machine during transport. Moreover, the driver can benefit from optimal comfort thanks to the heavy flywheel, the load sensing hydraulics and the torque regulation system.

The load sensing hydraulic system is used for automatic axle locking, knife steering, roller chute and bale ejector functionalities. The hydraulic system can easily be switched mechanically to an open centre operation if using it in combination with a tractor without a load sensing hydraulic system.

The design offers perfect accessibility and safety for the operator.

Equipment

Productivity at your fingertips<br />User interfaces are the key to achieving the productivity you expect from your KUHN machine. We listened carefully to the users of our machines to develop our new user interfaces and terminals. The objective is to have a clear view of what your machine is doing at any time and to have all important settings at your fingertips. This ensures that you have full control of your machine.

The CBB 200 pre-chopper has a specific design that matches the capacity and machine characteristics of the SB and LSB baler range.

CBB 200: Pre-chopping at its finest

Perfect chopped straw and a massive capacity. With the integrated CBB 200 pre-chopper on the KUHN SB and LSB, you are ensured of premium quality straw with excellent processing characteristics. The CBB 200 pre-chopper has a specific design that matches the capacity and machine characteristics of the SB and LSB baler range. The working height of the CBB offers a wide range of adjustment possibilities for maximum adaptation to the given conditions and circumstances. With a ground clearance of 65 cm, the CBB 200 can remain on the machine when pre-chopping is not required. The drawbar is specially designed to match both the CBB and the SB and LSB balers, creating harmony between the two machines.

ISOBUS compatibility

All KUHN large square balers are ISOBUS compatible. Therefore, ISOBUS compatible tractors will not require a separate monitor for the baler. Alternatively, the CCI 800 and CCI 1200 monitors can be used with tractors that are not ISOBUS compatible. Operator settings, such as bale density and knife activation, are accessed via the monitor. Operator alerts such as overload, twine routing and operator information, including wads per bale and number of bales, are also provided.

More info on CCI 1200 Terminal

More info on CCI 800 Terminal

The camera set consists of a separate monitor and a camera.

Optimal visibility and safety

The KUHN camera system provides optimal visibility and safety around the machine. The camera with LED provides optimal visibility at night. There are two kits available. One kit is compatible with the CCI terminal, using the CCI Camera App. The other one consists of a camera and a separate 7" screen, with the possibility to connect multiple cameras for perfect sight on the job.

Easy flow kit

The easy flow kit is useful for silage conditions in wet/sticky material. The Teflon plates reduce friction for better crop flow.

Electronic bale length setting via the terminal or mechanical

Electronic bale lenght setting

For even more driver comfort, KUHN large square balers can be equipped with electronic bale length setting via the terminal. The unique feature of the KUHN solution is that the mechanical version remains on the machine for maximum reliability.

Moisture sensor

All large square balers can be equipped with a calibratable moisture sensor with a measuring range between 9 and 40% moisture content. Moisture information shows up in real time on the tractor monitor.

Specifications

Technical characteristics


Bale height (cm)
Bale width (cm)
Bale length (cm)
Pick-up width (cm)
Number of pick-up tine bars
Pick-up crop roller
Intake system
Number of knives
Theoretical cutting length (mm)
Knife protection
POWER DENSITY pre-chamber intake system
Plunger strokes (min^-1)
Baling pressure setting
Binding system
Knotter cleaning
Automatic central greasing
Twine storage
Minimum PTO power requirement kW(hp)
PTO speed (min^-1)
Hydraulic jack
Transport width (cm)
Transport height (cm)
Transport length (cm)
Parking brakes
ISOBUS compatible
Road lights and signalling
Minimum required tractor hydraulic connections
Service lights
Weight min - max (kg)

SB 890	SB 890 OC
90	90
80	80
60–300	60–300
230	230
5	5
as standard	as standard
INTEGRAL ROTOR (with automatic cam clutch overload protection)	INTEGRAL ROTOR (with automatic cam clutch overload protection)
-	15
-	45
-	individual mechanic
as standard (with automatic cam clutch overload protection)	as standard (with automatic cam clutch overload protection)
46	46
3 hydraulic cylinders, controlled by on-board hydraulic system	3 hydraulic cylinders, controlled by on-board hydraulic system
4 double knotters	4 double knotters
turbo fans driven by on-board hydraulics	turbo fans driven by on-board hydraulics
as standard	as standard
32 rolls	32 rolls
77(105)	88(120)
1000	1000
as standard	as standard
278 maximum (depending on axles and wheel size)	278 maximum (depending on axles and wheel size)
326 maximum	326 maximum
800	800
as standard	as standard
as standard	as standard
as standard	as standard
1 single acting and 1 double acting valve	1 single acting and 1 double acting valve
as standard	as standard
8300 - 10400	8300 - 10400

Media

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