Dewatering Cyclones

Dewatering cyclones form part of Multotec’s comprehensive hydrocylone range. They have been designed as the ideal solution for all solids dewatering, water recovery and slurry densification applications in the mineral processing industry.

Our dewatering cyclones are manufactured in a complete range of sizes, from very small to large. Each cyclone is produced according to strict quality control standards at our ISO-certified facilities.

Features of Multotec Dewatering Cyclones:

  • Designed with the Multotec scrolled evolute inlet
  • Excellent wear resistance for abrasive applications
  • High water content recovery rates 
  • Suitable for high-pressure applications up to 3.5 bar (VV cyclone range up to 1.7 bar)

Your local Multotec branch supports your dewatering application with rapid product availability; complete range of cyclone spares, linings and components; and full engineering. Aftersales field support is included in our standard dewatering cyclone offering.

Enhance your product quality with Multotec cyclone services.Contact us


GV Cyclones

Our classification cyclone separator range is used across the world in density separation applications.

Designed specifically for use in tailings dams, our GV cyclones weigh just 45 kg, with a 220 mm ID and 20° cone angle.

Desliming Cyclones

Dewatering Cyclone

The optimum solution for mineral processing applications when dewatering solids and recovering water, as well as slurry densification applications.

Cyclone Densifiers

Tailings Dam Cyclone

Multotec’s range of cyclone densifiers maximise water removal and minimise medium loss in a dense medium circuit.


Cyclone Distributor

Cyclone Distributors.

Fabricated from mild steel and lined internally, Multotec’s cyclone distributors minimise pressure losses for higher energy transfers.

Cyclone Accessories

Cyclone Accessories

From liners and spigots to valves, adapters and injectors, Multotec has all the hydrocyclone accessories you need.

Cyclone Spares

Tailings Dam Cyclone

With over 10 000 cyclone spares, we have everything you need to keep your desliming cyclone performing at its peak.



Technical Capabilities

Our technical support includes providing assistance from appropriate cyclone equipment selection through to delivery accuracy and hot and cold commissioning. Comprehensive plant, process and equipment audits are available on request.

Condition Monitoring

Innovative condition monitoring products that extend the lifespan of your dewatering cyclones and other mineral processing equipment.  Multotec’s condition monitoring products are used across different industries to help monitor their wear solutions.

Field Service maintenance: 

To help ensure equipment longevity and superior product performance, Multotec’s cyclones (and all other equipment and products) are backed by extensive field service and maintenance agreements.

Test Work Capabilities:

Borne from intensive R&D and developed over the years, our test work capabilities include test and development work on spiral concentrators, classification cyclones, magnetic separators, samplers and laboratory-scale filtration and centrifuge equipment.


4Start Thread Cyclone

Multotec Mill Liners

Scrubber liners are ideal for hard mineral processing.

Our range of dewatering cyclone

Very small diameter dewatering cyclones:

Multotec offers very small diameter polyurethane dewatering cyclones (i.e. 25 mm ID to 75 mm ID cyclones from our FC cyclone range) and 100 mm ID and 165 mm ID polyurethane dewatering cyclones from our VV cyclone range.

Small diameter dewatering cyclones:

For slurry dewatering or water recovery (i.e. high solids yield to the underflow), we recommend our range of small diameter dewatering cyclones that achieve a fine cut-point. A higher-feed pressure can also be accommodated in small diameter dewatering cyclones, which assists in achieving a fine cut-point.

Large diameter dewatering cyclones:

Larger diameter dewatering cyclones may be used in processes where the feed to the cyclone does not contain a high fraction of ultra-fines and / or where solids losses to the overflow are acceptable. In the latter case, where solids report to the overflow, large diameter dewatering cyclones are acceptable when downstream equipment to recover or dispose of these solids exists – such as thickeners or tailings storage facilities.

These cyclones include the high-capacity classification cyclones (HC and HA) and the larger diameter cyclones of the polyurethane cyclones range (VV).

Selecting a dewatering cyclone for your application:

The correct selection of dewatering cyclones for the dewatering process depends on your application. We custom-design our range of dewatering cyclones to suit your application requirements, including:

  • Required underflow slurry density required
  • Solids yield to the underflow
  • Overflow particle size distribution
  • Overflow solids concentration
  • Feed particle size distribution

The most important design aspects of a dewatering cyclone are the cyclone diameter and the spigot diameter. The diameter of the dewatering cyclone will ensure that the correct cut-point is achieved, and the correct spigot diameter will ensure that the design underflow slurry density is achieved.

The scrolled evolute inlet design: the heart of the Multotec cyclone range!

Through extensive testing and simulations, Multotec has proven that the scrolled evolute design has a higher capacity when compared to other inlet configurations.

This design substantially reduces vortex finder wear, thereby reducing operating costs while maximising cyclone efficiency by allowing particles to follow its natural spiral trajectory. The scroll section also allow for natural particle segregation to take place before entering the classification zone.

Multotec products are engineered to optimise costs, lifespan and efficiency of mineral beneficiation plants.
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