Measurement & Instrumentation Solids Handling & Processing

New Range Of Centrifugal Sifters For Solids And Powder Handling Industry

Phil Black - PII Editor 23/02/2016

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Proven Reliable Solutions for Product Screening and Particle Size Control

For more than 50 years Gericke has provided Centrifugal sifting solutions to the solids and powder handling industry, gaining unrivalled experience handling a multitude of materials in many applications, catering for a wide range of industries including; food, chemical, pet food, beverages, dairy processing; infant formula and pharmaceutical.

Our wealth of knowledge supplying complete turnkey systems ensures that Gericke can optimise the interfaces between the sifter and other essential process components which is a critical factor in ensuring a successful installation.

GS Mk III Centrifugal Sifters

Building on our proven technology Gericke has introduced a complete NEW range of centrifugal sifters with updated design and operational features necessary to satisfy the demands of today’s processing industries especially with regard to sieving efficiency, higher yields, improved hygiene, ease of maintenance and compliance with the latest industry standards including the Machinery and ATEX Directives.

The new range of Mk III centrifugal sifter provides three base modules incorporating twelve standard configurations which can be optimised to suit different processes depending on the requirements of the application in terms of throughput rate, sieving mesh size, materials of construction, surface finishes and hygiene requirements.

The Baseline model provides a cost effective solution for general applications whilst the Multi-purpose unit includes additional features such as hinged doors to improve access for cleaning and maintenance.

The Hypergienic model is designed to meet the most stringent of requirements for cleaning and hygiene and features a cantilevered shaft assembly with bearings only at the drive end, three hinged interlocked doors, quick release fully welded paddle assembly and integral discharge hoppers.

Advantages of Gericke Centrifugal Sifters

•   High Capacity / High Efficiency
•   Robust and Reliable construction
•   360 degree in-situ rotating screen assembly inspection
•   Hypergienic construction
•   Cantilevered design
•   Quick-change over of screens without the need for special tooling
•   Ease of Maintenance
•   Pressure rated design for in-line applications
•   Dust tight construction
•   No Vibration – No flexible connections on the inlet or outlet.

Applications

Gericke sifters are utilised to guarantee product quality within the processing of powdery products, granules, or fibre.
Our ATEX certified sifters provide three main operations of the sifting processes: –

Particle Separation; the separation of two different product fractions with varying particle size, typically within the range of 40μ to 5 mm.
Safety sifting; removal of foreign parts and tramp material prior to product entering the production process or to secure product quality before filling processes.
Conditioning; to separate foreign bodies and condition the bulk density of the product prior to entering production or immediately before packing.

Gericke sifters have been designed and developed for the optimisation of these sifting tasks. The basic principles of centrifugal sifting, provides high level performance and optimum separation with a minimal footprint.
The high throughput capability of sifters justifies them as the effective choice for bulk sifting requirements prior the filling of silos from tankers.

Sifting capacities from; 2-3kg/hr guaranteeing product quality of high value small batch operations, to 120te/hr minimising the time-frame for filling of road tankers, a preferred method utilised throughout the milling industry and the production and processing of sugar and starch.

Screen Types

A critical element of any successful sifter application is the correct selection of sieve hose for optimum performance.
Gericke offer a comprehensive range of screen sizes and colours which are available ex-stock, including; HD Nylon, Anti-static, Polypropylene, Perforated plate and Wedge Wire

ATEX Directive

Gericke centrifugal sifters are widely used throughout the food, plastics, pet food and pharmaceutical industries and within Building chemicals processing, these process requirements are increasingly subject to ATEX categorisation.

Gericke Mk III Sifters are designed and certified for for ATEX zone 21 external and zone 20 internal for use with dusts with minimum ignition energy (MIE) of greater than 3mJ.

The full range of screens can be used within the ATEX certification taking into account such risks as propagating brush discharge.

Trials

Gericke sifters are available for in-house trials in our comprehensive test facilities situated at their various locations around the World, enabling clients to trial their specific materials and determine the correct machine size and configuration for their application.

Hire machines are also available for on-site trials and long term testing within the client’s actual production conditions and environment.
In addition we provide machinery and systems for all bulk handling processes; from receiving of raw materials to complete process supply lines as well as dosing and mixing processes.

Tests can be conducted on original process equipment in one of our Test Centres. For more information on our Test Centre capabilities or to arrange a trial, please visit: www.gericke.net/en/services/test-centre