Ultrasonic Vibration Sifter, Doebritz High-Performance Sieving, ATEX Certified / 1.2m² Filter Area

Product Summary

Doebritz Ultrasonic Vibration Sifter delivers unparalleled screening efficiency for fine powders and sticky materials. Engineered for continuous heavy-duty operation, this system achieves up to 85% higher throughput compared to conventional vibratory sifters. Key features include: 30-400 mesh precision screening, 1.2m² filter area, ATEX Zone 22 certification, and contactless ultrasonic deblinding that eliminates mesh blockage without degrading particle integrity. Ideal for lithium battery powders, pharmaceutical ingredients, and food-grade additives.

Why Source Doebritz Ultrasonic Vibration Sifter

• Superior Deblinding Technology: High-frequency (36 kHz) ultrasonic waves transmitted directly to the mesh screen prevent adhesion of hygroscopic or electrostatic powders, reducing downtime by 90% compared to mechanical cleaning systems.
• Stainless Steel Construction: Full SUS304 / SUS316L contact parts with sanitary mirror polish (Ra ≤ 0.4μm) meet FDA, cGMP, and EC 1935/2004 standards for pharmaceutical and food applications.
• ATEX Certified Explosion-Proof: II 2D Ex tb IIIC Db dust explosion protection ensures safe operation in hazardous environments (grain dust, metal powders, chemical intermediates).
• CNC Precision Mesh Framing: Laser-cut stainless steel sieve frames with ±0.05mm tension uniformity eliminate premature mesh failure, providing >12 months continuous operation under full load.
• Global OEM Supply Chain: Doebritz offers 7-day expedited prototype delivery, custom flange drilling (ANSI/ DIN/ JIS), and 24/7 remote vibration diagnostics via IoT-ready vibration sensors.

Housing & Mesh Engineering

The Doebritz Ultrasonic Vibration Sifter features a fully welded, stress-relieved housing manufactured from 3mm thick AISI 316L stainless steel. All internal edges feature R5mm corner radii to eliminate material entrapment and facilitate CIP (Clean-in-Place) protocols. The ultrasonic transducer is housed in a hermetically sealed titanium alloy enclosure (IP69K rated) and connected to the mesh via a resonance-optimized waveguide that distributes uniform vibration across the entire 1.2m² screening surface. The quick-release clamp ring design enables mesh change in under 3 minutes without specialized tools.

Technical Specifications

All Doebritz Ultrasonic Vibration Sifters undergo 100% factory acceptance testing with your material sample. Supported mesh sizes from 30 to 400 mesh (595μm to 37μm). Customizable inlet/outlet configurations include round clamp tri-clover, square flanged, or vacuum-tight rotary valve discharge. Operating temperature range: -20°C to +150°C with optional cooling jacket for heat-sensitive products.

Specification	Detail
Body Material	SUS316L Stainless Steel (contact parts), SUS304 non-contact
Mesh Size Range	30 to 400 mesh (595μm – 37μm)
Effective Screening Area	1.2 m² (single deck, standard)
Ultrasonic Frequency	36 kHz ± 2 kHz auto-tuning
Motor Power	0.75 kW (vibration) + 0.3 kW (ultrasonic generator)
ATEX Rating	II 2D Ex tb IIIC Db (Zone 22)
Surface Finish	Mirror polish Ra ≤ 0.4μm (product contact)
Max Feed Temperature	-20°C to +150°C (with cooling jacket optional)

Heavy-Duty Application Scenarios

Lithium Battery Powder Processing

Remove agglomerates from LFP (Lithium Iron Phosphate), NMC, and graphite anode powders without particle attrition. Ultrasonic action prevents screen blinding from <5μm sub-micron fines.

Pharmaceutical API Sieving

Certified for cGMP compliant API milling and sizing. Achieve 99.5% yield on micronized active ingredients (e.g., paracetamol, ibuprofen) with 400-mesh stainless screens.

Food & Spice De-agglomeration

Screen cocoa powder, instant coffee, or whey protein isolates at high humidities (≤85% RH) where conventional sifters fail. Ultrasonic mode ensures consistent flow rates up to 4.5 tons/hour.

Chemical & Pigment Additives

Handle titanium dioxide, carbon black, or PTFE micropowders with electrostatic charging. Optional grounding straps and inert gas purge ports prevent dust ignition risks.

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Frequently Asked Questions

What is the delivery lead time for Doebritz Ultrasonic Vibration Sifters?

Standard models (316L stainless steel, 1.2m² screen) ship within 15-20 working days after order confirmation. Express assembly (5-7 days) available for critical line stops. For custom mesh sizes or non-standard flange drilling, add 5-7 days.

Can Doebritz provide ATEX certification documents for global customs?

Yes. Every Doebritz Ultrasonic Vibration Sifter includes EC-type examination certificate (ATEX 2014/34/EU), signed Declaration of Conformity, and CE marking. We also supply IECEx certificates for international projects (Australia, Brazil, Canada). All documents are issued in English, French, and German.

Do you support non-standard inlet/outlet sizes or metric/imperial combinations?

Absolutely. Doebritz custom-machines ANSI 150#, DIN PN10, or JIS 10K flanges on any sifter size. Special orders include square outlets for sack dumping stations or quick-release Sanitary Tri-clamp (1.5 to 4 inch) for pharmaceutical skids. Minimum order quantity for custom flanges: 2 units.

What happens if the ultrasonic generator fails during production?

Each Doebritz Ultrasonic Vibration Sifter includes a fail-safe mechanical mode. If the generator stops, the sifter continues operating with conventional vibration (though at reduced throughput). Our 35 kHz auto-tuning generators feature remote diagnostics via Modbus RTU. Spare generators stocked in Houston, Rotterdam, and Shanghai for 48-hour emergency swap.

How do I clean the sifter between product batches?

The tool-less clamp ring design allows full disassembly in under 90 seconds. All stainless parts are compatible with caustic CIP solutions (pH 2-12) and high pressure wash (50 bar, 80°C). Ultrasonic transducers are hermetically potted to IP69K rating, allowing direct spray cleaning.