Power without compromise
The concept of the new JUMBO was based around the two requirements throughput and mass flow. The impressive new drive train enables significantly improved performance compared to previous models. The innovative drive system with a belt drive and angular/planetary gears in the rotor delivers maximum power coupled with extremely quiet and smooth operation.
Controlled power transmission
Thanks to their soft start characteristics, the rotor and beater driveline can be switched on and off even under load. The damping effect of the Powerband protects the components and ensures a long service life. The torque measurement system informs you of the current torque of the loading rotor.
Performance at a new level
The JUMBO has been designed for maximum performance and the greatest efficiency. All the core components have been completely redesigned and subjected to thorough trials on tractors producing up to 500 hp.
Belt drive with angular/planetary gears
Modern and innovative drive concept for tractors producing up to 500 hp. The loading torque can be adjusted as required.
Loading system
Maximum throughput thanks to the extended transfer throat and the large rotor with a diameter of 850 mm.
Beaters
The beater driveline with 210 kW of power and the new soft-start drive train protect the driveline components. The new beater rotors with V-twist ensure optimum beating and rapid unloading even with high compaction.
Power transfer reinvented
The innovative, unique drive concept has been designed for tractors rated from 200 to 500 hp. This means that the JUMBO can be operated with a wide range of tractors. The driveline has a double wide-angle PTO shaft without a clutch and is powered by a Powerband. Optimum power transmission to the rotor is ensured by angular/planetary gears in the rotor drive. The Powerband delivers maximum power transfer in all operating conditions. It ensures smooth running and a damping effect in changing operating conditions. This protects the mechanics and reduces maintenance and wear costs to a minimum.
Special overload protection system
A PTO shaft with an overload protection system is subjected to extreme wear-intensive stress when used in high-performance harvesting equipment. The angling of the PTO shaft during operation produces torsional vibrations which prematurely trigger the overload protection system and negatively impact throughput. PÖTTINGER therefore decided to remove the overload protection from the PTO shaft and integrate it directly in a fixed position in front of the angular/planetary gearbox. The result is optimum protection of all drive components against unnecessary stress and wear-intensive blockages. Irregular swaths can be picked up with no reduction in speed and no losses, even when cornering. This increases loading efficiency enormously.
Powerband
The 6-groove high-performance belt has been designed for extra long life and guarantees reliable power transmission. It can cope with the toughest demands and also ensures smooth running in all operating conditions. Operating noise is reduced to a minimum. The belt’s damping effect in changing swath conditions benefits loading performance. The Powerband is maintenance-free.
Soft start
Thanks to its soft start, the drive belt enables operation of the rotor and rear beaters even under full load. There is consequently no need to advance the scraper floor when unloading with beater rotors. The scraper floor chains and drivelines are protected, which significantly increases both reliability and the service life of all components. The drive belt on the JUMBO makes a conventional clutch system unnecessary.
PTO shaft without overload clutch
The innovative design of the drive belt means that no overload clutch is needed on the PTO shaft. Conventional systems lose as much as 20% of torque owing to angling and the resultant vibrations, especially when cornering. The JUMBO is therefore able to draw on the full torque of 3,000 Nm on the 7000 series and 3,500 Nm on the 8000 series, whatever the operating conditions.
It simply moves more
The heart of the JUMBO series is robust, powerful and designed for almost unlimited tractor power. The rotor and its innovative driveline provide high throughput, perfect chopping quality and, if required, the highest possible compaction. Thanks to the wide, edged areas at the 12 mm or 10 mm wide tine tips on the 8-row rotor, it takes over the crop actively and reliably from the pick-up, even if the crop is wet and short. The rotor tines are arranged in a helix formation, with a diameter of 850 mm to guide the forage smoothly through the 34 mm or 25 mm short-chop chopping system. The rotor is mounted directly on the chopping system frame in order to protect the rotor drive as much as possible even under heavy load. A tine form that has been optimised still further, combined with the largest possible scraper surface in the loading chamber, makes compaction of over 400 kg/m³ possible if required.
Driveline
The rotor is powered by angular/planetary gears which lower the high PTO speed to the ideal rotor speed. On the JUMBO range with beater driveline, the forward-mounted angular gearbox also features a through shaft and an integrated switch. When the beater driveline is activated, the maintenance-free clutch engages, the drive belt starts softy and unloading begins. The components are protected and a long service life guaranteed.
Loading rotor
75% of the rotor’s width is fitted with a new high-strength case-hardened steel which ensures high wear resistance in areas subjected to a lot of wear. This increases service life by 25%.
Transfer throat
The transfer throat has been widened by 100 mm, thereby allowing even greater throughput than its predecessor. It guarantees a high level of efficiency during chopping and allows shorter chopped length at edge than other, wider commercially available loading systems.
Chopping unit rear wall
The chopping unit rear wall on the JUMBO consists of wear-resistant fine-grained steel. This greatly increases the service life.
Flat link chains
The wide flat link chains with a breaking load of 13 t provide great stability, maximum reliability and smooth running. The scraper floor slats are double-bolted and rest on exchangeable guide bars. Its high power transmission and robust construction make the JUMBO suitable for transporting all kinds of chopped material.
Powerful driveline
The beater rotors are driven by the rotor drive train. The rotors are switched on by engaging the driveline at the rotor gearbox through drive. Due to the soft start of the Powerband, the rotor driveline can also be engaged under full load. The drive train is designed for 210 kW and is protected by a cam-type clutch.
Smooth driveline
Thanks to the soft start by the Powerband, the beater rotors can also be engaged under full load, without the scraper floor moving first. This protects the scraper floor components and also means unloading in the clamp is faster. Robust and large-dimensioned chains ensure positive and uniform power transmission right up to the top beater rotor. Each drive chain is continuously tensioned by a chain tensioner. This ensures optimum power transmission and smooth running.
Strong design
The V-shaped arrangement of the aggressive rotor teeth ensures effective disintegration of the compacted crop from the loading chamber. The loose material can be more easily redistributed and compacted in the clamp. Paddle bars connect the individual rotor teeth and increase throughput.
Perfect working results
An optional 3rd beater rotor improves the unloading sequence even further. It ensures that the full height of the crop inside the loading chamber is loosened and discharged uniformly into the clamp. Redistribution of the forage is usually not required. That saves time.
Perfect chopping quality
In addition to the great importance of the optimum dry matter content, the chopped length of the forage has a significant influence on the quality of the grass silage. This reduces the rumination time and makes it easier for the rumen to process. Both parameters lead to faster pH reduction, which reduces the risk of fermentation errors and has a positive effect on the stability of the grass silage. This lays the foundation for high dry matter intake.
34 or 25 mm chopped length
The JUMBO is the ideal choice for the highest forage quality thanks to the short-chop chopping system with a theoretical chopped length of 34 mm on the 7000 series and 25 mm on the 8000 series. The long arc of the knives ensures a slicing cut along the full length of the knife edge. The forage is chopped right through exactly and uniformly. The forage has the optimum structure for ruminants.
Actively driven feed augers
The feed augers deliver optimum crop flow even at high travelling speeds. The transfer throat is filled with maximum efficiency, thus increasing chopping quality.
Tines
The optimised DURASTAR pick-up tines with a wire thickness of 6 mm enable a 20% longer service life with consistently high collection quality. This cuts wear costs.
Feed augers
Large diameter feed augers on each side actively merge the swaths. The compact swath is evenly distributed across the full width of the transfer throat as it is fed to the rotor. That is how the JUMBO achieves the best short chopping quality.
34 mm chopped length
With the proven POWERCUT short-chop chopping system, a JUMBO 7000 series is the ideal solution for highest throughputs with low power requirements and the best chopping quality. The 48 knives are arranged asymmetrically to the rotor tines for clean and tidy chopping action and are individually protected against foreign objects.
Patented individual knife protection system
The knife protection system is operated by a trigger mechanism and provides double protection: the knife is first damped and then swung out of the interlock. Afterwards it is automatically returned to its original position.
25 mm chopped length
With its 65-knife POWERCUT short-chop chopping system, the JUMBO 8000 series is the first choice for the highest silage quality. The knives are individually protected against foreign objects even with the small knife spacing of only 25 mm.
Knife quality
The knives are designed for optimum throughput and made of hardened DURASTAR tool steel. The serrated edge ensures a consistent and precise chop. The extra thick rear edge of the knife guarantees maximum reliability.
Individual knife protection
PÖTTINGER protects your loader wagon with our patented individual knife protection system. Foreign objects are a danger to your livestock and the loader wagon. Moreover, downtime is costly and reduces the quality of the forage. The triggering force of the knife protection system is adapted to the high throughput capacity. The knives are held in the correct position to make sure that they chop consistently. The knife retention springs and rollers on the individual knife protection system are swung safely out of the way. This greatly reduces the contamination of the knife holders. Any stones in the forage are not pulverised. The livestock leave the foreign objects untouched at the feed barrier, thus preventing injuries to the digestive tract.
Twin blade
Turnover instead of replace with the optional TWIN BLADE reversible knives on the JUMBO 7000. Its new and patented shape gives you double the service life. With TWIN BLADE you have a fresh blade to hand without needing to sharpen the knives or to have a second set with you.
AUTOCUT – fully automatic knife sharpening system
A precise and consistent chop is the basis for the best silage quality. AUTOCUT ensures that you and your customer have chopping quality that remains consistently high all day long. Only really sharp knives can guarantee optimum chopping quality, lower power consumption and increased output. The AUTOCUT knife sharpening system is a convenient way of sharpening the knives fully automatically on the loader wagon itself. The number of sharpening cycles can easily be preset using the control terminal, depending on the wear on the knife. You can reduce fuel consumption by up to 15% by using knives that are always sharp. Maintenance work is reduced by about 45 minutes per day, because automatic sharpening can take place during a break.
Reliable and dependable
As soon as the large rotor with its optimised tine contour has taken up the forage from the pick-up, it feeds it gradually through the 34 or 25 mm short-chop chopping system. Should foreign objects enter the crop flow, the patented individual knife protection system lets them pass through and automatically returns the knife to the starting position. This ensures that the loader wagon and knives are effectively protected against damage and costly downtimes are avoided.
Better compaction
The 30% shorter chop length of the JUMBO 8000 compared to the JUMBO 7000 enables faster distribution and compaction of the crop in the clamp. The shorter-cut material is easier to compact because it contains fewer air pockets thanks to its higher bulk density. This leads to a faster pH value reduction to maintain high silage quality.
Less servicing
During development of the third JUMBO generation, the topic of maintenance was very much in the spotlight. - Number of gearboxes on board has been halved
- The front sprockets run on sealed bearings
- Rear scraper floor shaft bearings with central greasing points at the side. Service life at specific wear points such as the pick-up tines, the loading rotor, the knife steel quality, the chopping unit rear wall and the scraper floor has been increased considerably.
Lighting
The lights on the JUMBO have all been switched to LED, ensuring that the lamps have a long service life. This saves money and reduces maintenance. The powerful illumination provided by LED lights means you have light where you really need it.