Updated Specs from PM..pdf
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- Dual Asymmetric Centrifuge (DAC) Mixer
- Solicitation number
- 12305B24Q0181-B
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This document is a Combined Synopsis/Solicitation for a Dual Asymmetric Centrifuge (DAC) Mixer. The U.S. Department of Agriculture (USDA) is seeking to acquire a DAC mixer with the following minimum specifications: capacity for mixing at least 500g of material, variable centrifugal speed up to 1500rpm, capability to apply vacuum and use inert/chilled gas purge, and holders/containers for 50-300g sample sizes. The mixer will be used for designing formulations for edible films and structures from dairy components. The solicitation is a 100% Small Business set-aside under NAICS code 334516 with a size standard of 1,000 employees. Quotes are due by the date listed on the main Sam.gov posting page, and must include documentation of technical capability, a firm fixed price quotation, Unique Entity ID, and Buy American certification. Award will be made on a best value trade-off basis.
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Specifications: Dual Asymmetric Centrifuge (DAC) mixer.
Our project entails designing formulations for edible films and structures from dairy components, such as caseinates, whey, milk protein concentrate, whey protein isolate, etc. This involves mixing of proteinaceous powders in aqueous solvents typically in concentrations of greater than 12%, when physiological concentrations of such proteins in milk are below 4%. The powders thus take considerable time to fully dissolve while mixing via stirring. The process is further complicated with the tendency of these protein powders to form clumps that are very hard to stir into solution if care is not taken while mixing. Heating may be required so that constant supervision is needed throughout the stirring process.
Moreover, formulations with protein concentrations high enough to maintain shape also tend to have large viscosities, making them hard to stir. All of these complications would be solved by use of a dual asymmetric centrifuge (DAC) mixer. Such a mixer operates by centrifuging a sample while spinning the sample counter to the centrifugation motion. Our formulations are easily, quickly, and consistently mixed with a DAC mixer, and using a DAC mixer would allow for the creation of formulations with even higher solids contents with enhanced properties.
The minimum specifications for a DAC mixer include: (Brand Name of Equal to: FlackTek 1200-500 VAC)
• A capacity for mixing at least 500 g of material at once.
• Variable centrifugal speed of at least up to 1500 rpm.
• Capability of applying vacuum to mixing chamber and sample to remove air bubbles in sample.
• Option to have inert or chilled gas purge.
• Holders and containers designed for sample sizes to cover a range of at least 50 to 300 g.
Delivery Location:
US Dept of Agriculture 600 E. Mermaid Ln Wyndmoor, PA. 19038
• Point of Contact: (Provided at time of award)
Period of Performance:
*30-60 Days (ARO)
-End-
File details come from the government source that posted it. Updated .