Ultrasonic Vibrating Sieve for Fine Powder | UNITFINE

The UNITFINE ultrasonic vibrating sieve combines circular screening motion with ultrasonic vibration at the mesh. It is intended for fine-powder duties where particles adhere to the screen or obstruct its openings. Use the machine to evaluate a defined separation task: the material, required aperture, acceptable oversize and target delivery rate must be considered together.

How does ultrasonic mesh deblinding work?

The vibrating separator distributes material across the screen. An ultrasonic generator supplies an electrical signal to a transducer, which converts that signal into mechanical vibration. A matched conduction or resonance ring transfers the vibration to the mesh. The screen opening still determines which particles can pass; ultrasonic assistance helps maintain access to those openings.

Blinding reduces usable screening area when particles lodge in or adhere around the mesh. Ultrasonic vibration can help release such particles, but its effectiveness depends on powder behavior, screen tension, feed loading and the matched ultrasonic components. It should not be described as neutralizing electrical charge or breaking every agglomerate. Drying, upstream conditioning or another process may be necessary for damp or strongly bonded material.

What is included in the screening assembly?

• Vibrating sieve body: supports the screening deck and directs the separated fractions to their outlets.
• Ultrasonic generator and cable: provide the electrical drive for a compatible transducer.
• Transducer: converts electrical energy into mechanical vibration; position and connection depend on the offered assembly.
• Resonance ring and screen mesh: form the matched screen assembly that receives ultrasonic energy.

For replacement or retrofit work, compare the generator, transducer, cable, ring and mesh as a system. A matching connector alone does not establish compatibility. If you already have a separator, review the GTS30 ultrasonic screen deblinding system with UNITFINE before choosing a complete replacement machine.

Which powders should be evaluated?

UNITFINE lists resin and powder-coating materials, pigments, metal powders and alloys, chemical powders, pharmaceutical or biotech powders, and food or baking ingredients as application groups. These categories identify possible enquiries, not blanket suitability approvals. Moisture, bulk density, particle-size distribution, abrasiveness, temperature and contamination limits can change the appropriate screen and equipment configuration.

Industry names do not establish food-contact, pharmaceutical or hazardous-area certification. Specify the actual documentation and construction requirements in the enquiry. Dust containment also depends on the enclosure, seals, feed and discharge connections, and extraction arrangement; ultrasonic vibration alone is not a dust-control system.

Standard sieve, ultrasonic sieve or retrofit?

Choose ultrasonic assistance when mesh blinding is a demonstrated limit on the intended fine-powder duty. A larger motor or an ultrasonic generator will not correct a damaged screen, unsuitable aperture or uncontrolled feed. Compare alternatives using the same material and target separation, including product recovery, retained oversize, cleaning frequency and the condition of the mesh.

Compare the UNITFINE rotary vibrating sieve for the base screening arrangement. For a diagnosis of recurring blockage, use the mesh-blinding troubleshooting guide.

Model references and specification checks

The following model names come from the existing UNITFINE product listing. Generator entries are reference pairings from that listing, not a final compatibility schedule. Confirm the current generator, transducer and screen assembly on the quotation and drawing. Model numbers alone do not establish throughput, screen aperture, installed dimensions or the number of screening cuts.

Select the generator, transducer and screen assembly as a matched system. Confirm the operating frequency and electrical requirements for the exact components on the quotation; a model name or connector alone does not establish compatibility. Request the electrical supply, current rating, operating modes and enclosure dimensions of the generator to be supplied.

The UF08 generator information is a separate reference for component enquiries. For the screen, provide aperture and wire specification as well as any mesh designation; woven wire mesh selection should be checked against the required separation. Confirm all product-contact materials and seals instead of treating a transducer-casing description as a specification for the whole machine.

Define the trial and installation requirements

Define a material trial using a representative sample, the proposed aperture and the intended feed method. Before testing, agree the target delivery rate, acceptable passing and retained fractions, run duration, measurement methods and permitted deviations. Record these results and the screen condition against the agreed criteria. A short run with a substitute powder does not establish capacity for the production material.

• Material: name, representative sample, particle-size distribution, bulk density, moisture, temperature and flowability.
• Separation: target aperture, acceptable oversize, number of fractions and any concern about fragile particles.
• Delivery: required rate, batch or continuous feed, feed surges and upstream/downstream equipment.
• Installation: available space, feed/discharge heights, power supply, connections and maintenance access.
• Cleaning and safety: changeover method, contamination limits, powder hazards and required supporting documents.

Before purchase, request a configuration drawing and a written supply boundary covering the separator, ultrasonic components, screens and any auxiliary equipment. Confirm cleaning access and the replacement-screen procedure for that assembly. Use the supplied operating and isolation instructions for maintenance; this product overview is not an operating or safety procedure.