AMETEK Brookfield is the recognized world leader in viscosity measurement and control!
Brookfield, a business unit of AMETEK Inc, is the world leader in viscosity measurement and control of liquids and semi-solids for 80+ years! We manufacture and distribute globally viscometers the AST 100 for advance sensor technology for simple, direct in-line viscosity measurement, DV2T Touch Screen with temperature measurement, rheometers DV3T for measuring yield stress and viscosity, RST Controlled Stress for challenging rheological measurements, CT3 Texture Analyzers which features compression and tension mode for measuring firmness, springiness and chewiness and PFT Powder Flow Testers which measure yield stress and viscosity flow index and arching dimension used in R&D, QC and inline applications for rheological fluid analysis, tension and compression and powder flow analysis. Markets include: food cosmetics, pharmaceuticals, oil & gas, personal care products, adhesives, printing, inks & coatings, paper coatings, chemicals, packaging, plastics, construction materials, and asphalt.
AMETEK Brookfield manufacturers and services a full range of viscometers and rheometers, texture analyzers, and powder flow testers. Additional services include: testing for viscosity, texture and powder properties, calibration and certification program, custom fixture development, free technical papers, seminars, videos, application notes, manuals, and educational and training programs.
AMETEK Brookfield has a worldwide network of dealers/distributors providing local support with sales and service.
Viscosity Measurement and Control
The ability to gather data on a material’s viscosity behavior gives pharmaceutical manufacturers an important “product dimension.” Knowledge of a material’s rheological characteristics is valuable in predicting its pourability such as cough syrup, its performance in a dipping or coating operation, or the ease with which it may be handled, processed, or used. The interrelation between rheology and other product dimensions often makes the measurement of viscosity the most sensitive or convenient way of detecting changes in color, density, stability, solids content, and molecular weight. Ease of use, flexibility, reliable performance and quality of service have made AMETEK Brookfield Viscometers/Rheometers favorites all over the world. All of AMETEK Brookfield Viscometers are accurate within ±1.0% of the range in use and have reproducibility within ±0.2%. Test results can be duplicated anywhere in the world when the same model instrument is used.
Texture analysis is primarily concerned with measurement of the mechanical properties of a product as they relate to its sensory properties detected by humans. Fifty years of texture research has developed a set of definitions relating the sensory properties of a product to the instrumental properties which can be calculated from the results of a two cycle texture profile analysis test. Texture analyzers perform this test by applying controlled forces to the product and recording its response in the form of force, deformation and time. AMETEK Brookfield Texture Analyzer utilize uni-axial compression and tension forces in combination with a selection of probes, grips and fixtures to test a wide variety pharmaceutical and personal care. Most tests desire to imitate conditions imposed on these products during manufacture, handling, and consumption or use. Characterizing the physical properties of your products in such an analytical manner provides “real life” insight and can be invaluable toward maintaining consistent, high quality manufacturing while minimizing cost.
Powder Flow Analysis
Unlike liquids which, under the influence of gravity, tend to have a horizontal surface, powders exhibit a structure, due to internal friction and cohesion, which allows them to form piles with angles relative to the surface on which they are placed. At ambient conditions, powders do not change flow behavior when subjected to variable shear rates, whereas most liquids do. However, pressure controls the strength of a powder (i.e., increases the resistance to flow) whereas a liquid will show limited change in rheology under pressure. In other words, the consequence of subjecting a powder to a compressive force is that the powder will flow less easily; the relationship between the compressive stress applied to consolidate the powder and the strength it obtains is the measurement of the powder flowability, or its “Flow Function”. Particulate materials constitute a large group of solids that can range in size from sub micron particles to large rocks and minerals. The Powder Flow Tester measures the flow behavior of bulk solid materials that have a top particle size of 2mm. At least 90% of the sample should consist of particles less than 1mm in diameter. In many instances, powders with larger particles can still be characterized effectively by sieving the material at 1mm and testing the fines (the fines control the flow properties of a material with a wide size range). The generic term used by AMETEK Brookfield to name these materials is “powder”, therefore the name of our instrument is “Powder Flow Tester”. AMETEK Brookfield manufacturers and services a full range of viscometers and rheometers, texture analyzers, and powder flow testers. Additional services include: testing for viscosity, texture and powder properties, calibration and certification program, custom fixture development, free technical papers, seminars, videos, application notes, manuals, and educational and training programs. Brookfield has a worldwide network of dealers/distributors providing local support with sales and service.