Standard lump breaker

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Crushing of materials that tend to form lumps and ensuring flowability of the product

Available in mild steel, stainless steel 304L and 316L
Throughput from 1 to 50 m

Our lump breakers are the perfect solution for grinding materials that tend to form lumps. The lump crusher allows to break the lumps that form during the production or transportation process of friable materials in powder or grain. The fast rotation of specially shaped blades through a fixed mesh gives an efficient lump breaking action. The presence of two rotors allows high throughputs if required.

Main advantages of the lump crusher

  • ATEX standards 20/21/22
  • 3 standard sizes
  • Built with 2 rotors with blades for lump breaking and a mesh in order to reduce the passage space
  • Fixed or variable speed motorization, chain or gear drive
  • Manufacturing: mild steel, stainless steel 304L and 316L

Range of lump breaker : EC 35, EC 50 & EC 70

Models EC 35 EC 50 EC 70
Rotor speed in revolutions per minute 200 180 180
Theoretical throughput MT/hour or metric tons per hour  25 à 35 40 à 50 50 à 80
Product flow area in mm 375 x 375 525 x 525 750 x 750
Engine power in Kw 3 5,5 8
Flange dimension for connection in mm 445 x 445 600 x 600 600 x 900

Discover our Lump breaker custom made.



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Their objective is to ensure supply of fluid product.

Lumps must go through a deflector. The lump breaker includes two pin shafts. This model is recommended in the case of friable lumps, without moisture absorption.

The grinder consists of a square section body with  an upper and lower flange, 2 parallel horizontal shafts, a mesh for big sizes, 4 shaft bearings with adjustable shaft seal and an appropriate drive unit with transmission.

Available in 3 standard sizes (please contact us for the model EC70):

EC35 EC50
Rotor speed : 200 tr/min. Rotor speed : 180 tr/min.
Theorical flow : 25 à 35 t./h. Theorical flow : 40 à 50 t./h.
Product section passage : 375 x 375 mm Product section passage : 525 x 525 mm
Engine power : 3 kW Engine power : 5,5 kW
Mounting flange : 445 x 445 mm  Mounting flange : 600 x 600 mm


1. Electric motor

2. Reduction box

3. Reduction pins

4. Chain

5. Rotor pin

6. Gearbox

7. Housing

8. Drive side shaft bearings

9. Base

10. Mesh

11. Blades

12. Body

13. Shaft bearings on opposite side of rotor




  • Rotation controller
  • Safety switch on inspection door
  • Stainless steel construction
  • Other product passage dimensions
  • Blade shape according to product
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