Best-of-breed solutions for blue grain, lime fertilizers etc.

Mixing & crushing technology for fertilizer production

Our mixing and crushing technology solutions provide best-of-breed machines for the production of mineral fertilizers. We are your reliable partner for any type of fertilizer be it blue grain, potash and lime fertilizers or others.

Benefits at a glance:

  • High reduction ratio based on VSI impact crushing technology
  • High level of mixture homogeneity
  • Proven und forward-looking machine technology
  • Low operating costs

Fine grinding

Finely ground for easy spreading


Finely ground for easy spreading

Used in the right amount, lime-based fertilizers neutralize acidic soil and release nutrients. Limestone is ground to produce this fertilizer – a task for which our rotor impact mill (type RPM) has a proven track record of success.

Coloring fertilizers

Uniform coloring thanks to DKX


Uniform coloring thanks to DKX

Blue grain is the most popular fertilizer in commercial horticulture. The fertilizer owes its name to the typical color of the individual granules, which simplifies even dosing on the field. If the color is not evenly distributed in the fertilizer, customers will quickly take note of this and perceive it as a defect, even if it has no impact on the effectiveness of the fertilizer. With the twin-shaft batch mixer (type DKX), you can achieve a visibly homogeneous result batch after batch.

Moistening pulverized limestone

Dedusting pulverized limestone


Dedusting pulverized limestone

The single-shaft continuous mixer (type MFKG) prevents excessive dust formation. The finer the minerals are crushed, the easier they can be distributed. Unfortunately, fine particles generate a lot of dust. One measure to minimize the amount of dust is to evenly moisten the rock powder in the single-shaft continuous mixer.

Rotor impact mill (RPM)

Our high-performance crusher for targeted crushing – ideally suited for the production of quality sand

Twin-shaft batch mixer (DKX)

Invented by BHS – proven, reliable and innovative – providing top mixing results for complex applications for over 130 years

Single-shaft continuous mixer (MFKG)

High-performance, maintenance-friendly solution for continuous mixing processes with finer grains

Horizontal mixer (AVA HTC/HTK)

Optimal mixing quality with short mixing times

Tests give certainty

Which mixer or crusher is the right one for your application? Don’t leave anything to chance. Leave it to our team of process consultants. Working together with you, our specialists will carry out tests and develop a solution tailored to your specific needs.

Success stories

Combimix mixer for potash mine in Canada

May 2017
Potash for the fertilizer industry is produced in the Bethune Potash Mine operated by K+S in the province of Saskatchewan, Canada. The mine started off as a “legacy project” during its construction period. BHS-Sonthofen was commissioned with delivering two mixers for dust removal and coloring salts. The Combimix DKXC 7300 was selected for these challenging applications. The mixer impresses with its high throughput rate combined with a short mixing time and high product homogeneity.

Use of rotor impact mill in fertilizer production

April 2017
Grinding technology from the construction industry was used for the first time in the production of fertilizer at the Czech company Lovochemie A.S. A rotor impact mill (RPM) from BHS-Sonthofen breaks ammonium sulphate, replacing many process steps in doing so. The system’s strength lies in its highly consistent grading curve and low cost of operation.


SIM Bordeaux 2023

10-4-2023 - 10-6-2023
Booth C27

ICCX Eurasia 2023

12-6-2023 - 12-7-2023
Booth 80

EXCON India 2023

12-12-2023 - 12-16-2023

Intermat Paris 2024

4-24-2024 - 4-27-2024

Satisfied customers worldwide


Find a sales representative

Find your personal contact person on site. We are there for you worldwide.

Find a sales representative

Find your personal contact person on site. We are there for you worldwide.