Flow-Through Ultrasonic Processor

What is the Flow-Through Ultrasonic Processor?

A flow-through ultrasonic processor pumps liquid through a chamber with an ultrasonic probe, treating volumes continuously from milliliters to liters per minute. It is used for scale-up of dispersions, emulsions and extractions beyond batch beakers.

Overview

The flow-through processor places an ultrasonic probe in a sealed cell, through which liquid is pumped at 10 mL/min up to several liters per minute. Power is 200 to 2,000 W or more at 20 kHz, and cell volumes are 10 to 500 mL. Residence time, flow rate and amplitude define the energy delivered per volume. Cells are jacketed for cooling and withstand pressure of up to a few bar, which raises cavitation intensity. Pumping can be single pass or recirculating from a reservoir, and the same system can be used for lab trials and pilot production. Advantages include uniform treatment, avoidance of vortex or foaming, and easier cooling. Typical uses are nanoparticle and pigment dispersion, biodiesel and emulsion production, algae cell disruption and extraction of plant material. Probes and cells are made of titanium and stainless steel.

How does it work?

An ultrasonic generator converts mains power into a high-frequency electrical signal, typically 20 kHz, which drives a piezoelectric transducer. The transducer expands and contracts to produce longitudinal vibration, and a booster and a horn or probe amplify this motion to amplitudes of 20 to 200 micrometers at the tip. When the tip vibrates in liquid, alternating pressure waves form microscopic vacuum bubbles that grow and collapse violently, a process called cavitation. The collapse creates localized high temperature, pressure and shear jets, which rupture cells, break agglomerates and form emulsions. Key components are the generator, transducer, booster, probe or tip, and optional temperature sensor and sound enclosure. Amplitude, pulse mode, treatment time and probe diameter determine the energy delivered per volume. Cooling is essential because the process heats samples.

What are the key features?

• Continuous processing from mL/min up to liters per minute
• Power of 200–2,000 W at 20 kHz in a sealed flow cell
• Jacketed cell for cooling and pressurization up to a few bar
• Single-pass or recirculating operation from a reservoir
• Uniform treatment without vortex or foaming
• Scalable from laboratory trials to pilot production

What are the technical specifications?

A typical flow-through ultrasonic processor configuration offers frequency of 20 kHz, output power of 200–2,000 W, flow rate of 10 mL/min–5 L/min, cell volume of 10–500 mL, maximum pressure of Up to 0.5 MPa and probe material of Titanium alloy. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Flow-Through Ultrasonic Processor is used in nanoparticle and pigment dispersion, emulsion and biodiesel production, algae cell disruption, plant extraction and pilot-scale ultrasonic treatment. Across the wider Ultrasonic Homogenizers class, laboratories also deploy it for cell lysis and protein extraction, nanoparticle and graphene dispersion and nanoemulsion and liposome preparation.

Which standards and certifications apply?

Relevant standards and methods include IEC 61010-1, IEC 61010-2-051, IEC 62127-1, ISO 13320 and GB 4793.1. Certification candidates for this model are CE, RoHS and ISO 9001 manufacturing; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Always protect hearing, because ultrasonic units produce audible noise and subharmonics; use a sound enclosure or ear protection. Immerse the probe to the recommended depth and keep it centered without touching the vessel wall. Cool samples in an ice bath and use pulsed operation to limit heat, especially for proteins and RNA. Never run the probe in air, because this can damage the transducer. Inspect the tip for pitting and replace it when erosion is visible, since tip wear changes delivered power. Calibrate power output periodically with calorimetry. Clean with water or alcohol after each sample. Comply with IEC 61010-1 and local noise regulations, and use biosafety precautions because sonication can generate aerosols.

How do I select the right Flow-Through Ultrasonic Processor?

Select a flow-through processor when sample volumes exceed a few hundred milliliters or continuous treatment and scale-up are needed. For small batches use a probe or microtip. In the RFQ, specify flow rate, power, cell volume, pressure rating, materials and cooling needs.

How does it compare with other Ultrasonic Homogenizers variants?

Select an ultrasonic homogenizer by power, frequency, sample volume and format. Probe-type units deliver the highest energy density and are used for cell lysis and nanoparticle dispersion, with power from 100 to 1,200 W. Microtip probes handle volumes from 0.2 to 10 mL. Cup-horn systems treat sealed tubes indirectly and avoid aerosol and cross-contamination. Flow-through cells support continuous processing from milliliters to liters per minute. Enclosures reduce noise, which can reach 90 dB(A) or more without protection. Verify that the probe material, usually titanium alloy, is compatible with the sample, and check the availability of replacement tips. Consider pulse control, temperature sensing, amplitude stability and data logging. Ask for treatment time and energy per volume to allow method reproducibility across instruments.