Self-Cleaning Rotary Milliscreens

Specially designed for separating solids and liquids, screening, filtration, and dewatering, our Self-Cleaning Rotary Milliscreens are the proven solution for removing suspended solids throughout a variety of different industries.

As wastewater treatment is an essential process to minimise our impact on the environment, our Self-Cleaning Rotary Milliscreens have been designed to be simple to use and are perfect to utilise in any application that requires the removal of solids from waste water.

With over thirty years' experience, Farra's Milliscreens are in use throughout New Zealand with installations in Nelson, Timaru, Gisborne, Napier, Picton, Queenstown, Dunedin, Marlborough, Rangiora, Auckland, Mataura, and Christchurch.


Our screens are being utilised in the following applications:

  • Industrial and Municipal wastewater processing
  • Vegetable processing
  • Grape processing in the wine industry
  • Dairy farm treatment systems
  • Paper and pulp plants
  • Wool scouring plants
  • Wood fines plants
  • Tanneries


The Self-Cleaning Rotary Milliscreen works by having wastewater enter the hydro chamber where the specially designed baffle system reduces the velocity of the incoming wastewater to an even flow over the three-sided weir onto the screen.

As this occurs the milliscreen rotates at a constant speed with the cleaned water passing through the wedge wire screen or perforated sheet and the solid waste materials are expelled out the end of the barrel for disposal or further processing.


Our milliscreens are self-cleaning with internal and external sparge pipes, featuring low and high pressure water jets that remove what little physical blockage may occur. This feature means the milliscreen has more capacity, is more efficient, and has a reduction in maintenance downtime.

Other features of our milliscreens include:

  • An all stainless steel construction - Our screens are made from 304 or 316 stainless steel depending on their application.
  • Have a specially designed baffle system to reduce the inflow of wastewater.
  • Size ranges for 20 to 54,000 litres per minute.
  • The ability to be positioned in parallel to further increase capacity.
  • Wedge wire slots ranging from 0.25mm to 6mm.
  • Simple operation and easily serviceable with minimal moving parts.
  • Being easily retrofittable into existing systems.


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Contact our team to get more information on our Self-Cleaning Rotary Milliscreens.

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