Advertisement feature Cover story


Consistency is key I


ncreasingly manufacturers in the food, pharmaceuticals, cosmetics and chemical industries are speci- fying mixing equipment based on its ability to obtain consistent, compa- rable results - both in terms of batch consistency and when going from the laboratory or pilot plant to full produc- tion. More than ever before, scalabil- ity is a major factor in customers' decision to purchase equipment. This is especially the case with multi-site, multinational companies, where pro- cessing equipment is replicated in dif- ferent locations - and consistent results are expected.


Fine tolerances


This has been central to Silverson's philosophy for over 60 years. We man- ufacture all our mixers - from labora- tory units up to some of the largest mixing systems available - on-site in Chesham, Buckinghamshire. They are all designed and engineered to the same high quality and fine tolerances, and there is a consistency in key fac- tors such as tip speed, workhead geometry and shear rates which means that results obtained in the laboratory can be replicated with certainty in pro- duction. Likewise, batch-to-batch con- sistency is assured. To this end in the last few years Silverson has launched a number of new products, and in each case a labo- ratory version is available, ensuring that consistency across our product range is maintained.


Interchangeability


Over 40 interchangeable mixing units are available for use with Silverson's L5 Series laboratory scale mixers; options include Sealed Units for pro- cessing highly infective or sterile materials, Tubular assemblies for narrow necked or small containers, twin-headed Duplex Disintegrator units and a special small scale In-Line assembly. With a capacity range from 1 ml to 12 litres, the new generation of laboratory mixers offers a high level of instrumentation and automation via a digital touch pad and facilities to con- nect to PCs via a USB connection. Functions include programmable timer, infinitely variable speed con- trol, ammeter and tachometer, provid- ing excellent repeatability when carrying out QA testing and other repetitive tasks. In addition to the


Process & Control SEPTEMBER 2012 Pilot plant equipment


Following on from this, Silverson has recently launched a new Pilot scale model, the AX5. This heavy-duty unit combines the instrumentation and control of the laboratory mixers with the power and capacity of some of the smaller production units. This year at PPMA, Silverson will be demonstrat- ing a number of mixing assemblies designed for AX Series mixers that replicate some of our specialised mixers, including several units for incorporation of powders into liquids, and a brand new Ultramix model. The Silverson Ultramix is a closed-rotor type mixer designed for those applica- tions that are beyond the capability of conventional agitators but that do not necessarily require the intense high shear of a rotor stator mixer.


The


Ultramix range includes ten models, from laboratory up to 7,000 litre pro- duction units. At PPMA we'll be launching the new Pilot Scale model for use with the AX Series, bridging the gap between the laboratory and full production. Similarly, high shear In-Line mixers


The heavy-duty AX5 combines the


instrumentation and control of the laboratory mixers with the power and capacity of some of the smaller produc- tion units


Silverson explains how its range of mixers obtain consistent, repeatable results, time after time, which improves reliability, product quality and process efficiency


functional advantages, the touch pad control offers increased cleanliness and reliability.


The Verso dedicat- ed bench-top unit offers the same versatility as a pilot scale In-Line mixer


have advanced in recent years, in terms of hygienic construction and performance. With the Ultra Hygienic UHS range Silverson now offers inter- changeable single or multi-stage rotor/stator configurations, allowing the user to adapt the mixer for the widest range of applications. With the launch of the Verso, a dedicated benchtop In-Line unit, we can now offer the same degree of versatility with a pilot scale In-Line mixer. The Verso even features the same internal geometry and a tangential outlet, matching the configuration of the UHS Series, allowing users to streamline their scale-up process.


Data storage


Both the AX5 and Verso feature an integral tachometer, ammeter and pro- grammable timer. Like the L5 Series laboratory mixers, they also offer con- nectivity to PCs using a USB port and can be used with the Silverson DataLogger program. This displays mixing time and current draw in a real time graph and stores the information in a database, ideal for process valida- tion and ensuring repeatability. These innovative new products ensure that consistent, repeatable results can be obtained, time after time, resulting in improved reliability, product quality and process efficiency - a Silverson mixer can cut mixing times by up to 90%. Whether your application is in routine batch produc- tion, laboratory trials, research and development or when scaling up from the lab or pilot plant to full produc- tion, Silverson high shear mixers offer consistent quality across the entire product range, and unrivalled versatil- ity and performance.


Silverson Waterside Chesham


Buckinghamshire HP5 1PQ T: 01494 786331 E: sales@silverson.co.uk www.silverson.co.uk


Enter 250 17


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36