The Powder Flow Analyser Controlled Flow Measurement technology, offers the ability to physically displace the powder in a controlled manner that can be optimised to measure the differences between samples, or can be adjusted to be complementary to your process conditions.
The force resulting from the displacement is accurately measured and used to characterise and rank the sample.
Almost any sample capable of flow can be tested provided the force required is within the range of the instrument.
Rotors allow attachment of the patented helical blade to the motor via a shaft.
Why a True Helical Blade is Vital
Stable Micro Systems Patented Helical Blade:
*Patents granted and applied: AU 774211, US 6481267, EP 1102053, JP 2001194283, NZ 508253
From an engineering perspective:
The patented blade is a true helix and can be mathematically described, unlike the blades fitted to other powder measuring devices on the market. The helical blade naturally cuts through the column of powder being tested and negates the need for complex torque measuring systems. Repeatably manufactured by CNC machining, it allows Stable Micro Systems to achieve very reproducible, and highly discriminating results from a reliable, simple and lost cost accessory.
Commenting on the patent, Jim Walker, technical director at Stable Micro Systems, said: "The design of the blade is the single most important factor in achieving repeatable powder flow measurements. The non-helical blade used on other instruments is bent from a flat sheet and presents a large flat central area to the powder being tested. It effectively compresses a column of powder beneath the blade during its travel path through the sample. As a consequence, any axial force readings being taken are corrupted and these instruments are forced to rely on torque measurements because of the inadequacies of blade design."
Controlled Flow Displacement
The Powder Flow Analyser Controlled Flow* offers:
- User programmable tests that displace the sample by slicing, shearing, compressing, compacting, mixing, and aerating; in any combination, and in any sequence.
- Exact repetition of the test sequence best suited to your need, time after time.
- Independence from variable sample loading by pre-conditioning at the start of the test.
- Extremely gentle through to aggressive displacements.
- Measurement and analysis of force, time, and distance; parameters that define the sample behaviour during the programmed Controlled Flow*.
- Objective, numeric, automated analysis, characterising of the flow behaviour of the sample during Controlled Flow*.
Examples of controlled sample displacements to suit your process include:
Lift – Aeration
♦ Gives uniform powder column conditioning, and independence from sample loading variations
♦ Measure particle cohesion after compaction
♦ Measure flow after compaction
♦ Measure recovery from compaction
♦ Rest / flow transition studies at different rates
♦ Simple quality control batch and source variations
♦ Rapid wet mix measure for endpoint and scale up
♦ Resistance to flow and movement
♦ Mixing and mixing kinetics
♦ Granule surface friction
♦ Product contact part surface effects
♦ Resistance to extrusion
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