AF Vertical Froth Pumps

A Multi-industry Centrifugal Pump Manufacturer

SMI Pumps

Leading Pump Manufacturers in South Africa

Contact

664 Amelia Road, Lanseria, Corporate Estate, Lanseria

011 397 1176

sales@smipumps.co.za

Froth Pumps

AF Vertical Froth Pumps

Engineered for Efficient Froth & Air-Entrained Slurry Handling

SMI’s AF Vertical Froth Pumps are specifically designed to handle frothy slurries and air-entrained mixtures commonly found in flotation circuits and mineral processing plants. Their specialised vortex separation design efficiently removes entrained air from the slurry, preventing air locking while maintaining consistent pumping performance.

Featuring a conical tank, tangential inlet and highly wear-resistant wet-end components, the AF Series delivers reliable operation, reduced maintenance and exceptional service life in demanding industrial applications.

Key Features

  • Vortex Air & Slurry Separation Design
  • Conical Tank with Tangential Inlet
  • High Wear-Resistant Wet-End Components
Advantages

Advantages of the AF Vertical Froth Pump

The AF Series has been engineered to maximise pumping efficiency while overcoming the common challenges associated with frothy and gas-rich slurries.

Improved Pumping Efficiency

The unique vortex separation design allows air to separate naturally from the slurry before it enters the impeller. This significantly reduces the risk of air locking, ensuring continuous flow and improved pumping performance.

Reduced Maintenance Requirements

The cantilever shaft design eliminates the need for submerged bearings and conventional shaft seals, reducing wear, simplifying maintenance and lowering overall operating costs.

Optimised Conical Tank Design

The combination of a conical tank and tangential inlet creates a controlled vortex that improves slurry flow while minimising particle degradation and wear. This results in greater operational efficiency and longer equipment life.

Highly Wear-Resistant Wet-End Components

Manufactured using premium wear-resistant materials, the wet-end components are designed to withstand abrasive slurries, extending service intervals and reducing replacement costs.

Grease-Lubricated Bearing Assembly

A grease-lubricated bearing system reduces friction and operating temperatures, extending bearing life while ensuring smooth, reliable pump operation.

Compact Integrated Design

The AF Series features a compact, integrated construction that simplifies installation and allows flexible layouts to suit various plant configurations and space requirements.

Application

Designed for Frothy Slurries

The AF Vertical Froth Pump is ideally suited for handling froth, gas-containing slurries and low-shear applications where conventional slurry pumps often struggle.

Typical industries include:

  • Mining
  • Mineral Processing
  • Flotation Circuits
  • Chemical Processing
  • Paper & Pulp
  • Industrial Process Plants

 

Construction

Pump Construction & Exploded View

1. Pump Casing

Manufactured from high-strength wear-resistant materials, the pump casing provides excellent durability in abrasive and corrosive environments while directing slurry efficiently through the pump.

2. Impeller

Designed to optimise froth handling while maintaining high pumping efficiency.

3. Bearing Housing

Supports stable shaft alignment and reliable long-term operation.

4. Shaft

Heavy-duty shaft designed for continuous industrial service.

5. Pump Column

Provides structural support while positioning the wet end within the sump or tank.

6. Spiral Back Liner

Protects internal pump components against wear while maintaining efficient hydraulic performance.

A Multi-industry Centrifugal Pump Manufacturer

SMI Pumps

Leading Pump Manufacturers in South Africa

Contact

664 Amelia Road, Lanseria, Corporate Estate, Lanseria

011 397 1176

sales@smipumps.co.za