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‘Spiroflow’ Flexible Screw Conveyors – BALly good job!

Posted on 9th April 2008 by

Back in 2004, Building Adhesives Ltd, manufacturers of ‘BAL’ and ‘Dunlop’ construction adhesives, chose 2 ‘Spiroflow’ Flexible Screw Conveyors as part of a new production line. This new line, which generally meets current production targets through single shift working, was designed and installed to replace 3 aging production lines that all had to work through a double shift to keep up with demand.

The 2 conveyors deliver minor additives from sack tip stations to weigh hoppers above a mixing station. Each conveyor is fed from 25kg bags that are slit open on a grill above a buffer hopper. Several sacks are tipped at a time into the buffer hoppers, which sit above the conveyor inlets. The buffer hoppers are furnished with dust containment cabinets, provided by others, that are connected to the factory’s central dust extraction system.

The ‘Spiroflow’ conveyors operate in response to a signal at the start of each new batch of product. They run until the respective load cell mounted minor-additive weigh hoppers, that they serve, reach their target weights.

Operator loading a conveyor buffer hooper.

Given that the conveyors are dedicated to their individual products, they do not have to be cleaned between batches. Essentially, they have been in operation since they were installed in November 2004 without requiring any attention. As Engineering Co-ordinator, Kevin Beech confirms, “They have been very reliable”.

When asked why they chose to use flexible screw conveyors, Project Engineer, Dave Smith, advised that he knew of their space saving, flexible routing capabilities and their reliability from previous experience elsewhere, “Given that we were tight for space and reliability was a key issue, they were the obvious choice.” Asked why he chose a ‘Spiroflow’ conveyor rather than a competitor’s; he confirms, “Because your representative took samples of product away for test and came back with a good offer that included a performance guarantee”.

Building Adhesives Ltd is part of the international German construction chemicals group Ardex. At their Stoke-on-Trent factory, Building Adhesives employ around 200 people and deliver some 90,000 tonnes of building products a year to the professional and DIY markets. These range from surface preparations, primers, tile adhesives, tile grouting, right through to tile after-care products. As the market leader, in 1992, Building Adhesives Ltd launched a pioneering training centre operation, providing practical and theory training and assessment for tilers of any level. For full details about Building Adhesives Ltd’s products, contact them on Tel: +44 (0)1782 591100 or visit their web site at

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Carolynn Sarver

Director of Marketing
Carolynn has been with Spiroflow for nearly six years. Previously she led marketing initiatives at Fortune 500 companies & international tech firms in the US, Canada & Australia.