Name: Self-propelled 4-row sieving harvester for row spacings greater than 80 cm
Brand: Dewulf

Discover the capacity of a true 4-row harvester

The Kwatro Xtreme is the self-propelled 4-row sieving harvester for growers who refuse to compromise on capacity, cleaning performance and crop friendliness. This third generation combines a full-width sieving path without constrictions with the latest Dewulf technologies, including Level X, the new X11 cab and a larger bunker.

With the Kwatro, Dewulf was the first manufacturer to combine frontal harvesting with a conventional sieving path, advanced cleaning systems and the largest bunker in its segment. The Kwatro Xtreme continues that tradition.

Row spacings greater than 80 cm: no compromises, no constrictions

Developed for growers working with row spacings greater than 80 cm, the Kwatro Xtreme is characterised by a full-width sieving path without constrictions. The result is maximum harvesting capacity, excellent cleaning performance and exceptionally gentle crop handling.

Master of the field, anytime, anywhere

Thanks to its high-quality frontal harvesting concept, potato ridges remain intact while the Kwatro Xtreme benefits from outstanding stability. The 550 hp Scania engine, combined with a high-capacity cooling system, enables the machine to handle even the most demanding harvesting conditions.

The optimised weight distribution, 900 mm wide tracks and wide rear wheel minimise soil compaction and leave a perfectly level field after harvesting. As a result, the Kwatro Xtreme remains exceptionally reliable, regardless of the conditions.

With the optional Level X packages, sensors, data and smart automation support the operator in achieving consistent quality and maximum harvesting performance.

More capacity, more comfort

The 12-ton bunker has been designed with maximum crop friendliness in mind. Thanks to the absence of a transfer roller and funnel construction, the crop is handled exceptionally gently during unloading. The discharge elevator with bar web provides additional cleaning during unloading by removing excess soil.

The latest X11 cab offers a comfortable and spacious working environment, ensuring long harvesting days remain productive and enjoyable.

3 variants

Kwatro Xtreme

3 sieving webs

Haulm roller

Hedgehog conveyor

Flexyclean® 2.0 module

Kwatro Xtreme Flow (Easyclean)

2 + 1 sieving webs

No hedgehog conveyor

7 active smooth cleaning rollers alternated with 9 Easyclean rollers

Quick-Change Easyclean

Cleaning module adjustable from 0° to 12°

Kwatro Xtreme Flow (axial + Easyclean)

2 + 1 sieving webs

No hedgehog conveyor

36 axial rollers

Easyclean module with 2 active smooth cleaning rollers and 3 Easyclean rollers

Quick-Change Easyclean

Cleaning module adjustable from 0° to 12°

■ = standard
o = Optional
- = Not applicable

Harvesting unit

Width of digger web [mm]	2 x 1760
Hydraulically driven cutting discs	■
Haulm intake rollers	■
Diabolo kit	o
Spray track detection	o
Truck spot	o
APC (Automatic Pressure Control)	■
Syncro Flow	■
DAS (Dewulf Automatic Steering)	■
ADC (Automatic Depth Control)	■

Sieving chains

Length digger web [mm]	1870
Length sieving conveyor 2 [mm]	3250
Length sieving conveyor 3 [mm]	2280

Haulm separation

Haulm chopper with ADC	■
Haulm chopper with side discharge	o
Haulm roller	■

Cleaning

Rotating agitator in the digger web	o
Two eccentric agitators in sieving web 2	■
Eccentric agitator in sieving web 3	■
Hedgehog unit	■
Sieving module with additional haulm roller	■
Axial module	o
Flexyclean^®	o
Cleaning module in discharge belt	o

Dimensies

Total length during harvesting [mm]	15 760
Total length during transport [mm]	15 090
Total width [mm]	4100
Total height [mm]	4000
Weight from [kg]	30 250
Tracks	2 x Claas tracks (900 mm x 2950 mm)
Extra wheel axle between the tracks	o
Rear wheel	Continental 1050/50 R32 (1055 x 1858 mm): • Michelin 1050/50 R32 (1055 x 1858 mm): o Mitas 1250/50 R32 (1250 x 1858 mm): o