Benchtop High-Pressure Homogenizer

What is the Benchtop High-Pressure Homogenizer?

A benchtop high-pressure homogenizer is a compact unit that processes 10 to 500 mL at pressures up to about 1,500 bar. It is the standard choice for formulation screening, nanoemulsion development and small cell-disruption batches.

Overview

The benchtop high-pressure homogenizer fits on a laboratory bench and drives one or two pistons with a geared motor. Typical working volumes are 10 to 500 mL, with pressures up to about 1,500 bar and flow rates of 5 to 50 L/h. Product is recirculated from a jacketed or stirred reservoir, so several passes are completed without reloading. A pressure gauge or digital display shows the homogenizing pressure, and a second-stage valve can refine the size distribution. Cooling is usually passive with an ice bath, or active with a small chiller. The unit uses 316L stainless steel or ceramic wetted parts, and seals are replaced as consumables. Because the throughput is low, sample loss in the dead volume must be considered. These machines are ideal for early formulation work and for preparing small batches for characterization.

How does it work?

A high-pressure homogenizer uses a positive-displacement piston pump to pressurize the sample, then forces it through a narrow valve or interaction chamber. As the fluid passes the valve seat, velocity rises sharply and pressure drops, creating intense shear, turbulence and cavitation that break droplets and cells. In a two-stage design a second valve at lower pressure further refines the particle size distribution and reduces recoalescence. Product temperature rises by roughly 2 to 3 °C per 100 bar, so jacketed heat exchangers or ice cooling control the outlet temperature. Main components are the feed hopper or reservoir, pistons and seals, the valve assembly with wear-resistant seats, a pressure gauge, and the cooling circuit. Operating pressure, number of passes, valve geometry and temperature determine the achievable droplet size, often in the 50 to 500 nm range.

What are the key features?

• Working volume of 10–500 mL for screening and small batches
• Homogenizing pressure up to about 1,500 bar
• One or two-stage valve for controlled droplet size
• Jacketed or stirred reservoir for recirculation
• 316L stainless steel or ceramic wetted parts
• Compact footprint with digital pressure display

What are the technical specifications?

A typical benchtop high-pressure homogenizer configuration offers working pressure of Up to 1,500 bar, working volume of 10–500 mL, flow rate of 5–50 L/h, stages of 1 or 2, minimum sample volume of 10–20 mL and wetted material of 316L stainless steel or ceramic. 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 Benchtop High-Pressure Homogenizer is used in nanoemulsion formulation screening, liposome preparation, small-batch cell disruption, particle size reduction studies and beverage emulsion trials. Across the wider High-Pressure Homogenizers class, laboratories also deploy it for nanoemulsion and liposome preparation, cell disruption for protein and nucleic acid recovery and pharmaceutical suspension particle size reduction.

Which standards and certifications apply?

Relevant standards and methods include IEC 61010-1, IEC 61010-2-051, ISO 13320, EN ISO 12100 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.

Install the unit on a level, rigid surface and allow access to the valve, seals and cooling lines. Prime the system before pressurizing to avoid dry running, which damages pistons and seals. Inspect and replace valve seats, O-rings and piston seals on a schedule, because wear shifts particle size. Clean and flush immediately after use; for biological work, validate a cleaning protocol that removes residues between products. Follow IEC 61010-1 for electrical safety and the local pressure equipment rules. Never open the valve assembly while the system is pressurized. Record pressure, passes, temperature and results so that batches can be reproduced, and verify performance with particle size analysis before release.

How do I select the right Benchtop High-Pressure Homogenizer?

Choose the benchtop model for formulation screening and batches below 500 mL, where pressure capability matters more than throughput. For liters, move to a pilot unit. In the RFQ, state volume, target particle size, pressure, number of stages and cooling needs.

How does it compare with other High-Pressure Homogenizers variants?

Select first by working pressure and throughput, because these set the achievable particle size and the batch time. Nanoemulsions and liposomes usually need 1,000 to 1,500 bar, while cell disruption often works at 500 to 1,000 bar. Match the machine size to batch volume: benchtop units for 10 to 500 mL, pilot units for 1 to 50 L, and production units above that. Choose the valve or interaction chamber geometry for your application, and whether one or two stages are needed. Confirm wetted materials such as 316L stainless steel, ceramic or diamond for abrasive samples, and the ability to autoclave or steam-in-place where sterility matters. Specify cooling, number of passes, pressure control and data logging in the request.