Screw Feeder for Pumping Viscous Products


Why is a pump screw feeder necessary? Well, the main problems when trying to pump highly viscous food products are:

  1. Viscous products don’t flow into a pump inlet
  2. Viscous products don’t fall into a pump by gravity and can result in pump cavitation
  3. Viscous products can be too heavy for a pump to lift or ‘suck’ or self-prime so assistance is required to feed the pump if they are to be transferred by a pump

Pump Screw Feeder Typical Applications

Common examples where a pump screw feeder is required would be when handling non-flowing food products like:

  • Mashed potato
  • Biscuit or Cookie fillings
  • Buttercream
  • Icing
  • Fondant
  • Fruit pastes

Where these products would ‘hang up’ on the hopper walls or ‘bridge’ rather than fall or flow, our pump screw feeders encourage the material to enter the pump.

Pump Screw Feeders Designed for Your Products

BestPump’s single screw (or single auger) pump feeder systems are designed to process and handle viscous products that do not readily enter a pump either through pipework or by gravity via a hopper feed inlet.

Typical screw feeders would feature a bridge breaker and paddles that rotate and cause the product to enter the screw (or auger) chamber which then positively feeds the product into the pump inlet.

The pump can have a large rectangular flange inlet which helps the viscous product to enter the pump easily.

We design the system in such a way that the pumped product is air-free so accurate batching is possible.

Pump screw feeder system components

  • Stainless steel vessel with hopper inlet
  • Stainless steel screw (auger)
  • Stainless steel bridge breaker with paddle with electric motor
  • Stainless steel positive displacement pump with geared electric motor
  • Stainless steel electronic control panel with Variable Speed Drive

Rotary Positive Displacement Pump

For viscous products, we recommend a circumferential piston pump for the following reasons:

  • Gentle pumping action for shear-sensitive products because of bi-wing rotors
  • Solids handling capability – from tiny solid fruit seeds to large fragile solids
  • Self-priming capability
  • Reversible flow
  • Can be cleaned-in-place (CIP)
  • Can handle low to high viscosity fluids and slurries
  • Versatile with various sealing options including dry running (with flushed mechanical seal)

Other names for Screw Feeders

  • Pump feeder
  • Screw feeder
  • Auger feeder
  • Viscous screw feeder
  • Viscous pump feeder
  • Viscous auger feeder
  • Pump auger feeder
  • Pump screw feeder
  • High viscosity pump feeder
  • High viscosity screw feeder
  • High viscosity auger feeder
  • Bridge breaker
  • Pump for products that bridge