Grain bag extractor with the highest extraction capacity on the market. A Professional model for large-scale activities with an extraction capacity of over 200 tons per hour. Grain extractor with reversible loading auger and automatic reeling of the silo bag.

Koyker is a high performance machine that provides unprecedented opportunities to handle large volumes of grain in a short period of time. Koyker works with a combination of augers and a chain elevator and have the largest capacity available on the market for dry grain.  

The machine is equipped with dual blades that enables an even and fine cut of the silo bag. Grain is extracted, out of the silo bag, by a chain elevator and through the auger up to waiting trucks by a huge 17-inch auger. Because the auger is reversible, the load can take place on both to the right and to the left which allows much denser layer than previously possible with other machines. Because the silo bag is raised during the process, it leaves no grain left in the silo bag. After finishing, the silo bag is readily packed in a roll, ready for smooth recycling. Only one person is needed for the work.

The Koyer requests a mid-size tractor of minimum 120 hp to do a good job, is run on 540 rpm, and will need 2 hydraulic outtakes. It can be placed both at the front and at the back of the tractor, creating greater flexibility than other machinery available on the market. The weight of the machine is app. 2.250 kg.


Technical data

-Weight 2.270 kg
-Capacity 200 - 220 t/h
-Transport width (with folded auger) 2.6 m
-Tractor 120 - 160 h.p.
-PTO 540 RPM, 2 hydraulic outlets
-Tires 265R16
-Hitch Category II three point hitch


Grain Bagging/Extraction


GS Grain Extractor Koyker


Grain Saver grain extractor koyker Grain Extractor Koyker, pdf (4,52 Mb)