Gyratory On-Line Screen (GOLS)

What’s the benefit?

The Gyratory On-Line Screen (GOLS):

  • The GOLS enables effective screening and dedusting of sample material.
  • Load cells in tanks enables accurate determination of particle size distribution in sample flow – absolute and relative.
  • Data on particle size distribution is gathered electronically and automatically transferred to the data management system. No manual labor needed.
  • Has a solid design and very reliable performance.
  • Screens are interchangeable, which allows for different ranges of particle sizes.
  • Has low maintenance costs and low noise level.

Find more of Mark & Wedell JAWO Sampling’s screening equipment here:

GOLS Product Brochure.

To find out more about our Gyratory On-Line Screen (GOLS) please feel free to download product brochure:

Link to brochure

Bjarke Pålsson

Co-CEO & Owner

What does it do?

The Gyratory On-Line Screen (GOLS) is designed for precise screening and subsequent measurement of particle size distribution in sample material based on gyratory motions.

The GOLS works well with dry, dusty and grainy materials such as granules and different types of ore.

It does so electronically in real-time without the need for manual weighing and “writing weights down on paper” as the output data are automatically sent to the data management system.

It can used as an integral unit in a sampling system or as a stand-alone gyratory screen.

How does it do it?

The GOLS consists of an inlet, a screen section, a base frame, and multiple outlet sections. The screen area accommodates multiple different screens, and with each screen there is an opening allowing for material flow towards the outlets. The base frame holds and drives the mechanism through vibrations. The outlet sections hold, measure, and distribute the fractionated sample material.

The sample material is fed by gravity into the inlet, from where it is drawn through the screens. The screens fractionate the material, as each screen only allows passage for particles with a diameter below a certain limit.

When the material is sorted, it is fed into the tanks through flexible tubes. Here it is weighed, and when the weight limit is reached, a knife gate valve opens, and the material is sent through to the outer system. Weight information – hence particle size distribution – is electronically transferred to the data management system.


What are the technical details?

Material type: Dry, dusty, powdery and grainy materials.

Drive unit: Gear motor.

Voltage: 400/230 V – 50 Hz or as required.

Sensors: Inductive sensors, load cells.

Indicative Dimensions (LxWxH): 1650x1650x2300 mm.

Indicative weight: 1000 kg.

Screen options: Number of screens and screen sizes depends on customer requirements and relevant standards.

Housing material: Stainless Steel AISI 304/316 and/or painted galvanized mild steel.

Material flow: Depends on sample material.


1. The Gyratory On-Line Screen can be delivered as a standard Gyratory Screen with or without the On-Line option.


Nota Bene

The GOLS comes with a variety of screen options. The number of screens, screen material and screen mesh size can be made to fit customer requirements and relevant standards. The overall dimensions and number of outlets of the GOLS differ with the number of screens.

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