Knudsen Bowl

US $15,000

The Knudsen Bowl Concentrator we have for sale is great for the recovery and concentration of gold.

Applications for the Knudsen Bowl:

■ Recovery of Gold from Alluvial or hard rock deposits
■ Upgrading and recovery of gold from concentrates from other gravity separation stages such as jigs, spirals, sluices and cone concentrators
■ Used for exploration and evaluation of gold deposits
■ Other mineral applications include tin, tungsten and scheelite

Exploration
The use of the Knudsen Bowl centrifugal gold concentrator simplifies small exploration plants. A plant only requires screening and a Knudsen Bowl for gold recovery.

Concentration
Knudsen Bowls can be used in parallel to suit the feed tonnage. To maximise recovery, units can also be used in series with tailings from the first unit fed to a second unit.

Features of the Knudsen Bowl:

■ Batch operation with simple cleaning to remove concentrate
■ Relatively low rotational speed to minimise maintenance requirements
■ No added water for bed dilation
■ Simple construction
■ Low capital cost
■ Compact and lightweight
■ Bowl geometry designed for maximum gold retention
■ CE compliant

Knudsen Bowl centrifugal gold concentrator Capacity:

  • Maximum capacity is 3-4TPH on screened material at a pulp density of 30% solids.
    NOTE: Unit capacity is dependent on application. Feed rate to the unit may have to be lowered as the quantity of heavy minerals in the feed increases.

Ideal Knudsen Bowl Feed Size:

  • Nominal feed size is -4mm.
    NOTE: This feed size may be increased to 6-8mm maximum size depending on the shape of the particles.

The Knudsen is a concentrating bowl ideally suited to scavenge fine gold from shaking table such as the Gemini table tails

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Description

Feed Material Size — 1/8″ and under. It can run up to 3/16″ if material is not too jagged.

This is a gold centrifuge with a volume of 4 to 5 yards per hour of screened material. The material is fed into the well in the center of the bowl with approximately 30 gallons water per minute.
To clean simply remove top and pull plug in center of liner. Hose out quickly with fine spray, replace plug, replace well and resume operation.
These concentrating bowls are being used as singles or in series to recover gold, tungsten, cinnabar and other heavy values from placer, tailings and dumps, and also are being used in mills.

knudsen bowlsknudsen bowl for gold recovery
Mechanical Data

■ Rotation speed: 102-105 RPM
■ Required motor size: % HP
■ Weight: 100kg
■ Shipping weight: 120kg (approx)

Concentrate Removal Procedure

■ Stop bowl rotation
■ Removal feed pipe support
■ Place bucket under bottom outlet and remove plug
■ Hose out between riffles with fine spray
■ Replace plug and feed pipe and recommence operation

Where and When to use a Knudsen Bowl 

Exploration: The use of the Knudsen Bowl simplifies small exploration plants. A plant only requires screening and a Knudsen Bowl for gold recovery.
Concentration: Knudsen Bowls we have for sale can be used in parallel to suit the feed tonnage. To maximise recovery, units can also be used in series with tailings from the first unit fed to a second unit.

More Gold Concentrators
Knudsen Bowl Centrifugal Gold Concentrator Mk 2 Electric CE compliant (240V 60/50 Hz)
Knudsen Bowl Centrifugal Gold Concentrator Mk 2 Electric CE compliant (415V 60/50 Hz)
Knudsen Bowl Centrifugal Gold Concentrator Mk 2 Electric CE compliant (110V 60/50 Hz)

Key Features

  • Batch operation with simple cleaning to remove concentrate
  • Relatively low rotational speed to minimize maintenance requirements
  • No added water for bed dilation
  • Simple construction
  • Low capital cost
  • Compact and lightweight
  • Bowl geometry designed for maximum gold retention
  • CE compliant

How does a Knudsen Bowl gold concentrator work

knudsen bowl

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