• The Gleaner T81 is the largest model in the T Series (launched in 2024), with an AGCO Power engine rated at 430 hp and a 13 734 L grain tank, designed for the conditions of large farms in the USA
  • A key difference is the Natural Flow system, with a transversely mounted rotor. It is intended to simplify the design, reduce weight and make servicing easier without sacrificing performance.
  • Why the Gleaner is not available in Poland and Europe: the standard configuration can be too wide for European roads, and AGCO focuses on the Fendt and Massey Ferguson brands here, along with their sales network.

We really like machines like these because Gleaner has a history of its own, a distinctive design concept and a very specific philosophy: high output does not have to mean making the machine as complex as possible. Despite being part of a corporate group, the American brand has retained its distinct identity, although certain corporate components have, of course, had to be adopted. These include AGCO Power engines, terminals and cabs known from other models.

The largest model, the T81, which we saw at AGCO dealer Ziegler and at the Farm Progress Show, is equipped with an AGCO Power engine with a rated output of 430 hp (it can briefly reach 471 hp). It also has a 13 734 L grain tank and an unloading rate of up to approximately 141 L/s.

Why does AGCO offer Gleaner combines primarily in the North American market instead of introducing them to European farms? To understand this, it is worth looking at both the machine itself and the brand’s history of more than a century.

Gleaner T81 and its own idea for threshing

Gleaner T81 belongs to the latest generation of combines from this brand. The T series was unveiled by AGCO in August 2024 as a design intended to combine high performance with ease of operation and servicing. Indeed, these principles have always been part of the Gleaner brand, and that has not changed. The aim was not to create a machine with as many electronic features as possible, but to improve those elements that directly affect the course of the harvest.

Gleaner T81 spotkany przez nas w Jackson w Minnesocie u dealera AGCO (firma Ziegler) Fot. kamil.pawlowski@ptwp.pl / PTWP
The Gleaner T81 we saw in Jackson, Minnesota, at AGCO dealer Ziegler. Photo: [已隐藏邮箱] / PTWP In terms of size, the T81, as mentioned above, is the largest model in the T series, which also includes the smaller T61 and T71. In this case, it is powered by an AGCO Power engine with a displacement of 9,8 l, 7 cylinders, and two-stage turbocharging. Rated power is 430 KM, and maximum power is 471 KM at 1950 rpm. The engine works with an exhaust after-treatment system using selective catalytic reduction (SCR) and a cooled exhaust gas recirculation (EGR) system, and theoretically could be sold in Europe. In fact, it was used, among other things, in Fendt and Massey Ferguson combines and 900 MT Vario series tractors. According to AGCO, this is one of the most unique in-line designs (7 cylinders) on the agricultural machinery market, characterized by operating smoothness similar to that of V8 engines.

What is most interesting about the new Gleaners is not the drive or the engine. The American brand uses its own threshing and separation system called Natural Flow. The T81 model has a single transversely positioned rotor with a diameter of 762 mm and a length of about 2235 mm. Its speed range is 179–480 rpm in low gear and 336–903 rpm in high gear.

And the word “transverse” is key here. Many large combines we know from European fields use longitudinally positioned rotors. Gleaner took a different approach, developing its own concept for crop flow through the threshing and separation unit. In practice, the aim is to move material through the machine as smoothly as possible, limiting unnecessary changes in direction and additional mechanical components. The brand emphasizes that its design helps reduce the number of parts, lower machine weight, and make components easier to access.

Gleaner T81 spotkany przez nas w Jackson w Minnesocie u dealera AGCO (firma Ziegler) Fot. Kamil Pawłowski / PTWP
The Gleaner T81 we saw in Jackson, Minnesota, at AGCO dealer Ziegler. Photo: Kamil Pawłowski / PTWP The T81 also features a two-stage grain cleaning system. According to the manufacturer, it is designed to provide clean grain in the tank without having to sacrifice threshing capacity. Compared with competitors, including those from its own group, machines such as the Fendt IDEAL and Case IH Axial-Flow in their largest versions are aimed at very high throughput and large acreages. Gleaner, on the other hand, focuses on a simple design and low operating costs, but its combines are not always highly productive and are offered with wide headers.

The designers have emphasized for years that they do not want to make the combine more complex without a clear benefit to the user. For the T series, AGCO points to the use of a welded subframe and drives that use belts and shafts instead of gearboxes, pumps, and motors. This is intended to reduce weight and the number of components requiring maintenance.

Gleaner T81 na pokazach w kukurydzy podczas Farm Progress Show Fot. Kamil Pawłowski / PTWP
Gleaner T81 at the corn demonstrations during Farm Progress Show Photo: Kamil Pawłowski / PTWP Gleaner is also significantly lighter. Its lower weight is particularly important on wet fields, while the lower pressure on the soil can limit compaction, and a lighter machine is easier to move between fields. However, this does not mean that Gleaner will be the best choice in every condition. On farms where the priority is maximum throughput within a short weather window, large combines with more power and a larger separation area may have an advantage.

Gleaner also opts for a simple drivetrain

In the new T series, the manufacturer has used the Dura Drive drivetrain. It is a two-range transmission that allows the range to be changed while driving. The maximum speed in road mode is 40 km/h. The controls are complemented by a multifunction lever with characteristics resembling the operation of a continuously variable transmission (it is not a CVT).

The equipment also includes a differential lock, optional rear axle drive, hydraulic reversal of the rotor's direction of rotation, and covers that facilitate access to components. The latter feature may not seem particularly spectacular, but during intensive harvesting, every minute saved on servicing matters.

Gleaner wystawiany w okolicy sprzętu marki Massey Ferguson i Fendt na targach Farm Progress Show Fot. Kamil Pawłowski / PTWP
Gleaner displayed near Massey Ferguson and Fendt equipment at Farm Progress Show Photo: Kamil Pawłowski / PTWP The cab features a 10,4-inch terminal (known from other AGCO designs), rear-view and unloading cameras in higher-specification equipment, as well as the AutoTurn function, which helps position the machine for the next pass at the headland. Gleaner is therefore not abandoning electronics, but rather aims to use them where they genuinely help the operator and where they are already essential.

Three brothers from Kansas: the beginnings of the Gleaner brand

Many people are probably wondering where a brand like Gleaner came from. It is not well known in Europe, and there are probably readers who have no idea it exists. From an American perspective, Gleaner's history is very interesting, and at one point it was one of the most important combine harvester manufacturers in the American market, alongside International and John Deere. The company's history continues to have a significant influence on how these machines are built today.

fot. domena publiczna
photo: public domain Gleaner's history began in 1923 in the state of Kansas. The brand was founded by the Baldwin brothers: Curtis, Edwin, and Ernest, who were closely connected with agriculture and knew the practical challenges of harvesting, partly through their own custom-harvesting business. At the time, harvesting grain involved many stages of work and required a substantial labor force. The brothers wanted to combine reaping, threshing, and separating the grain in a single machine that could move independently across the field, so they created a combine harvester that was mounted on a Fordson tractor. This can be compared to our Zagon, although the two designs are separated by several decades.

The name Gleaner comes from the English word “gleaning,” which means gathering the leftover crops remaining in a field after the main harvest. It was therefore a promise of effectively recovering grain from the field and minimizing harvest losses. The inspiration was reportedly a painting titled "Des glaneuses" by the French painter Jean-François Millet, completed in 1857. It is housed at the Musée d’Orsay in Paris. Is this romantic version of events true? We don't know, but stories of this kind circulate among enthusiasts of agricultural machinery.

Des glaneuses – obraz olejny autorstwa francuskiego malarza Jeana-François Milleta, ukończony w 1857 r. Fot. Jean-François_Mille / Domena publiczna
The Gleaners – an oil painting by French painter Jean-François Millet, completed in 1857. Photo: Jean-François_Mille / Public domain Gleaner was therefore among the pioneers of self-propelled combine harvesters. However, before it began producing machines similar to today’s models, Gleaner made tractor-pulled combines, and during the Great Depression it turned to manufacturing products unrelated to agriculture. In the early designs, it was not only the combination of harvesting operations that mattered, but also the compact construction. This was important for service companies that followed the ripening grain and had to move equipment between farms. Over the years, the brand established a strong position in the American market, while its distinctive silver color became one of its trademarks.

The growing Gleaner was acquired by Allis-Chalmers in 1955. This meant that the very popular American tractor manufacturer also had harvesting machines in its portfolio—and very good, popular ones in the USA.

Używane Gleanery spotkane przez nas u jednego z dealerów sprzętu rolniczego w Iowa Fot. Kamil Pawłowski / PTWP
Used Gleaner machines we spotted at an agricultural equipment dealer in Iowa. Photo: Kamil Pawłowski / PTWP As for the idea of a transverse rotor, it was introduced in 1979, when Gleaner launched the N series, which included the N5, N6 and N7 models. This was when the rotor positioned across the machine appeared, later becoming the brand’s trademark. It is worth pausing here, because it is an interesting idea that only Gleaner retained. At the time, competitors were developing longitudinal rotor technology, aligned with the combine’s axis. New Holland did this in 1975 (Twin Rotor technology), and International Harvester in 1977 (a single Axial Flow rotor). These were innovations that significantly advanced grain harvesting. Gleaner took a somewhat different approach and turned the rotor by 90 degrees. In this configuration, the crop enters the threshing unit from the right side of the rotor (which is why the opening through which the crop enters the combine is shifted slightly to the right). It is then conveyed through the machine in a way that resembles a ribbon. The manufacturer emphasized even feeding, full use of the rotor’s circumference, and reduced losses. 

Gleaner argued that its solution reduces the need to change the direction of crop flow and makes it possible to achieve a large separation area without making the machine longer. This is evident when looking at a working Gleaner, which is considerably shorter and slightly wider. The N Series at the time also used a system to accelerate grain before it reached the sieves, making it possible to separate chaff and impurities more effectively.

What else set Gleaner apart?

One of the more interesting elements of Gleaner technology is the so-called accelerator rolls, which accelerate the crop before it is cleaned on the sieves. Grain and fine impurities separated by the rotor are fed onto two rolls, which increase their speed. The crop stream then passes through an airflow that helps remove light chaff before it reaches the sieves.

Instead of burdening the sieves with the entire crop mass, the combine does part of the work beforehand. Gleaner emphasized that this arrangement increases cleaning capacity, improves grain sample quality, and helps reduce losses.

Gleaner na podwórku dealera marki Versatile w stanie Iowa Fot. Kamil Pawłowski / PTWP
Gleaner in the yard of a Versatile dealer in Iowa Photo: Kamil Pawłowski / PTWP Until recently, cabs were an important distinguishing feature of the Gleaner brand. The Americans placed great importance on visibility and ergonomics, and the solutions used did not always align with prevailing trends. 

Always positioned exactly in the center of the machine, the cabs looked as though they were made almost entirely of glass; they were heavily glazed and angular. The Vision cab from 2016 also featured a Tyton terminal, which integrated machine control functions and precision farming systems, but we already know this from other AGCO machines, just under a different trade name.

Gleaner was also one of the first brands to introduce a 12-row corn head to the market (1980). This solution responded to the growth of large American farms, where harvesting capacity depended not only on the combine but also on the header's working width.

Gleaner T81 Fot. Kamil Pawłowski / PTWP
Gleaner T81 Photo: Kamil Pawłowski / PTWP The DynaFlex draper header, with a fully flexible cutterbar, is also worth highlighting. It was developed for harvesting low-set soybean pods and other crops where accurately following the field surface is important. AGCO describes DynaFlex as the first design of its kind in the world.

How did Gleaner become part of AGCO?

AGCO itself was established in 1990, when a group of managers acquired Deutz-Allis’s North American operations from the German conglomerate KHD (Klöckner-Humboldt-Deutz). In 1985, the owner of the Deutz-Fahr brand acquired the agricultural division of the legendary American company Allis-Chalmers, and with it the Gleaner brand. Under Deutz-Allis, Gleaner combines continued to be produced, but gained one significant technical change: German air-cooled Deutz engines began to be fitted in some models.

It is worth recalling AGCO’s acquisitions here, as they have influenced Gleaner’s history. In 1991, the Hesston brand (a leader in hay equipment) was purchased from FiatAgri. Three years later, Massey Ferguson joined AGCO, opening the door to markets around the world. Further acquisitions included Fendt in 1997, Ag-Chem and the rights to manufacture Challenger from Caterpillar in 2001 and 2002, and Valtra and Sisu Diesel in 2004. One wonders where Ursus would be today if a deal had been reached in 90. We should note that the talks took place when AGCO did not yet own Valtra or Fendt.

In 1985–2000, Gleaner lost a significant share of the market to other manufacturers with broader dealer networks and agricultural product lines that offered advantages in marketing and customer service. Another problem for the company was that some of its combines were equipped with air-cooled Deutz engines. Nevertheless, Gleaner still has a recognizable presence in North America, usually supported by AGCO’s dealer network, a group of loyal customers, and a distinctive design that sets it apart.

Where are Gleaners manufactured?

Production of Gleaner combines was moved to the AGCO facility in Hesston (the former Hesston factory) in Kansas in 2000. Previously, the machines were made in Independence, Missouri. The production move was intended to make use of a more modern facility and bring engineering and manufacturing together in one location.

Gleaner T81 na pokazach w kukurydzy podczas Farm Progress Show Fot. Kamil Pawłowski / PTWP
Gleaner T81 at corn demonstrations during the Farm Progress Show. Photo: Kamil Pawłowski / PTWP Moving Gleaner production to Kansas also had symbolic significance: the brand returned to the area where its story began.

Why isn’t Gleaner available in Poland and Europe?

Gleaner could technically be offered in Europe because its engine meets the Tier IV Final emissions standard, and the design is not limited to just one type of crop. However, certain restrictions mean that Gleaner cannot be offered here. Because of its design and its primary intended markets of North America and Australia, the machine in its standard configuration (especially with dual front wheels, e.g. 520/85R42 duals) is too wide for European roads and exceeds the standard road width limit of 3 meters. The same was true of previous models of the brand. The issue also lies in market strategy and adapting the offering to local needs.

Gleaner is primarily well established in North America. Farmers there know the brand, there is a dealer and service network, and the design was developed with the specific needs of farms in that region in mind. In Europe, AGCO already has the Fendt brand, whose IDEAL combines are offered in various versions. There is also Massey Ferguson, with its own range of harvesting machines. Introducing another brand would require creating or expanding a sales network, providing parts and technical support, and determining which customer group it would target. And then there is the issue of the machine’s width.