Roller Mill HE

The new PTN Roller Mill series HE is developed to break or structurize various materials, such as grains, oilseeds, biomass products and/or others. Herewith an optimum result and low energy requirements is achieved. An integrated rotating feeder in the top unit ensures an even flow to the breaking/structurizing rollers. The large diameter axially riffled breaking rollers rotate at the same speed in opposite directions. Using accurate measurement, the large 300 mm structurizing rollers guarantee smaller particles with minimum fines.

Top Unit

The top unit consists of a rotating feeder, to be controlled by a frequency converter, which can rotate in two directions. One rotating direction of the feeder is to the two breaking rollers. The opposite direction is the bypass function. Driven by electric motor, with V-belt transmission on the motor side. A double toothed timing belt connects both rollers on the other side. Sensor for speed control of structure roller transmission.

Extra Units

The top unit can be extended with one or two extra breaking/structurizing units, each consisting of two solid structurizing rollers. This ensures an optimum structurizing result.


  • Integrated rotating feeder from mild steel with two rotating directions:
    › one direction to structurizing rollers.
    › opposite direction by-pass structurizing rollers.
  • Solid construction in mild steel.
  • Manual roller adjustment with adjustment accuracy 0.1 mm.
  • Solid structurizing rollers made of ‘Hartguss’ material  (5 to 6 time longer lifetime than chrome steel).
  • Oil free transmission by means of double toothed timing belt.
  •  Inlet and outlet with flange, inclusive counter flange.


  • An electro-pneumatic operated bypass flap (in the double unit to bypass the lower unit, in the triple unit to respectively bypass the middle or lower unit).
  • Remote roller adjustment, with adjustment accuracy 0.01 mm.
  • Available in different finishing standards

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Roller Mill HE?

High Efficiency Line

The development of our new High Efficiency (HE) line concentrated not only on higher performances and a more hygienic design but also lower energy consumption. The new HE line gives excellent access to all maintenance areas. With this HE line PTN takes a new step forward.

High Efficiency advantages

  • More capacity with same energy level.
  • Possibility of capacity increase due to modular design
  • Frequency controlled dual rotation feeder (by-pass function).
    frequency converter not included.
  • Even distribution of the product to the entire working lenghth of the breaking/structurizing rollers.
  • Rollers are easily exchangeable.
  • 50% more revision options of the rollers.
  • Easy access for cleaning and maintenance.

Range of Single Roller mills

Main unit111
Inlet (mm)612×1421212×1421752×142
Outlet (mm)606×4771206×4771746×477
Roller working length (mm)70013001840
Roller diameter (mm)300300300
Drive (kW)1×18,51×371×45
Capacity (t/h)0-108-1815-25
Length (mm)144621362676
Width (mm)136613661366
Height (mm)875875875

Range of Double Roller mills

Main Unit111
Extra structurizing units111
Inlet (mm)612×1421212×1421752×142
Outlet (mm)606×4771206×4771746×477
Roller working length (mm)70013001840
Roller diameter (mm)300300300
Drive (kW)2×18,52×372×45
Capacity (t/h)0-208-3215-45
Length (mm)144621362676
Width (mm)136613661366
Height (mm)175017501750

Range of Triple Roller mills

 PRM307-T PRM313-TPRM318-T
Main Unit111
Extra structurizing units222
Inlet (mm)612×1421212×1421752×142
Outlet (mm)606×4771206×4771746×477
Roller working length (mm)70013001840
Roller diameter (mm)300300300
Motor (kW)3×18,53×373×45
Capacity (t/h)0-288-4415-60
Length (mm)144621362676
Width (mm)136613661366
Height (mm)262526252625

The final capacity depends on:
– Kind of product
– Dimensions of the product (mm)
– Density of the product (kg/dm3)
– Required dimensions of the particles (mm)