The flexible mill | automatic screen change

Large-chamber mill GDX


Large-chamber mill GDX

The flexible mill | automatic screen change

Technical Data

Drive power
160 – 355 kW
Grinding chamber area
1.8 – 2.8 m2
Permissible weight
3800 - 4800 kg
Grinding chamber diameter
1200 mm
Sieve width
640 – 1000 mm

Technical details
  • Robust welded steel construction, symmetrical housing for operation in both directions of rotation.
  • Grinding chamber equipped with wear elements to protect the housing walls, easy to replace
  • Armored inlet flap with position switch for change of direction of rotation
  • Optimized impact zone with armored impact plates on both sides of the inlet for efficient size reduction
  • Debris catcher pocket inside the grinding chamber to protect the screens
  • Durable, optimized rotor design, dynamically balanced, run-down time < 6 minutes without brake
  • Beater carrier system (cassette change): easy, quick beater change in a few minutes
  • 2 sets of 4-part screen basket segments, depending on requirements, quickly movable / exchangeable by electric motor
  • Wide opening doors allow easy access to the grinding chamber
  • Tested and certified in pressure shock resistant and flameproof design (0.4 bar)
Machine types
GDX 12 GDX 20
Grinding chamber diameter (mm) 1200 mm 1200 mm
Screen width (mm) 640 mm 1000 mm
Grinding chamber area (m²) 1.80 m² 2.80 m²
Dimensions and Weight
Length* x width x height (approx. mm) 3300 x 1600 x 1750 mm 4460 x 1600 x 1750 mm
Weight without motor (approx. kg) 1950 kg 2450 kg
Motor size (kW 160 - 250 kW 250 - 355 kW
Speed 50 Hz/60 Hz (rpm) 1500/1800 1500/1800
Speed with frequency converter 34-60 Hz 1000 - 1800 1000 - 1800

*Depending on motor size Measuring surface sound pressure level < 88 dB (A) (under load)

Download data sheet
Weizen und Maiskerne

The solution for frequently changing requirements

Maximum flexibility with different structures
Weizen und Maiskerne
The Hammer Mill GDX is designed for grinding compound feed, with frequently changing requirements, in the feed structure.
The fully automatic screen change also makes it possible to quickly change between two screen perforations by mouse click, and while the machine is running. Together with a frequency converter (FC) controlled drive, this results in a maximum of variability in terms of the grain spectrum.
Our large chamber mill GDX
Your Advantages
Rotor GDX Pneumatische Umlenkung

Efficient Grinding, High Capacities and Maximum Flexibility

  • Optimised impact zone with hardened impact plates on both sides of the inlet
  • Large grinding chamber for high capacities
  • High energy efficiency due to special rotor design
  • Fully automatic screen change allows a selective change in the structure of the ground material in just a few seconds
  • Variable grist spectrum by adjusting the beater circumferential speed (when using a frequency converter), the screen perforation and the beater configuration

Reliable Operation and Long Service Life

  • Robust welded steel construction for continuous industrial operation (24/7)
  • Grinding chamber equipped with wear elements to protect the housing, easy to change
  • Durable, optimised rotor design, dynamically balanced, operation in both directions of rotation
  • To protect the screens: foreign body catch trap for impurities inside the grinding chamber

High Availability with Low Downtimes

  • Fully automatic change of different screen perforations during idling
  • Quick and easy change of beaters due to beater frame system, beaters can be changed outside the mill
  • With a second set of beater frames, the machine is immediately ready for use again
  • Rotor with short run-down time < 6 min without brake
  • Wide-opening doors allow easy and quick access to the machine interior

High Safety of Personnel and Plant

  • Standstill monitoring with door safety device
  • Pressure shock resistant and flameproof design (0.4 bar)
  • ATEX design according to zone 21 (II 2 D) inside and zone 22 (II 3 D) outside optionally possible
These partners take advantage of
Large-chamber mill GDX
Logo Agravis
Logo Austing
Logo Hansa Landhandel
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