Particle Size Analysis-LA 960


This latest evolution in the LA series advances scientific knowledge for tomorrow’s world through intuitive software, unique accessories, and high performance. The LA-960 continues HORIBA’s proud tradition of leading the industry with innovative design.

Watch the LA-960 Product Overview video (3:19)

LA-960 Overview Video



Performance that matters

  • Measure particle size between 10 nanometers and 5 millimeters
  • State of the art nanoparticle measurement resolves peaks at 30 nanometers
  • Suitable for suspensions, emulsions, powders, pastes, gels, and creams
  • Easy to use dry powder accessory, read the PowderJet page for more information
  • Requires only micrograms* of sample, minimizing cost of analysis
  • Flexible, fully automated measurement sequences maximize precision and method compliance
  • Excellent reproducibility and unit-to-unit agreement, read the Gage R&R Study for more information
  • Measurements in less than 60 seconds boost productivity
  • Based on the ultra-durable LA-950 platform, noted for its reliability


Software that grows to meet your needs

  • New users are guided by the Method Expert software to create powerful measurement methods with no prior training
  • Experienced users create turn-key measurements with the Sequence function to include custom messages, measurement averaging, pass/fail repeats, and much more
  • Advanced users benefit the Intensity Graph, Custom Calculations, and other power tools to deeply understand their measurements
  • The brand new user interface emphasizes ease of use to ensure hassle-free operation
  • Integrated 21 CFR Part 11 compliant software available with user administration, audit trail, and electronic signature functionality


HORIBA's performance guarantee

  • Guaranteed accuracy of ± 0.6%**
  • Excellent unit-to-unit precision, ideal for multi-location requirements
  • ISO 13320:2009 compliant
  • IQ/OQ available
  • LA-960 performance verified on every unit with NIST-traceable mono- and polydisperse size standards


Our particle expertise = your solution

HORIBA's experienced staff of technical and applications specialists support the LA-960 in 54 offices across 45 countries. We are committed to the satisfaction of our users and to the education of the greater industry and provide many channels of support including:

  • Sample analysis via the many Applications Labs around the world
  • Free software updates, webinars, technical notes, and much more in the Download Center
  • Instant support via phone, e-mail, and online meeting
  • On-site and in-house user training courses
  • Service contracts, verifications, and validations to fit every requirement
  • Advanced software tools to correlate data from other particle size analyzers to maintain historic specifications


Measurement Method

Mie Scattering Theory

Measurement Range

0.01 μm to 5000 μm

Measurement Time

1 minute from dispersion liquid filling to measurement and rinse.

Sampling System

Required Sample Amount:Sample 10 mg to 5 g (Depends on sample material)
Dispersion Medium:Approx. 180 mL to 250 mL (Using Flow Cell)
Viscosity:Less than 10 mPa・s

Optical System

Light Source:650 nm Laser Diode approx. 5.0 mW
405 nm Light Emitting Diode (LED) approx. 3.0 mW
Detectors:Silicon Photo Diode

Circulation System

Ultrasonic Probe:Frequency 20 kHz 7-Level selections
Circulation Pump:15-Level selections
Agitator:15-Level selections
Flow/Fraction Cell:Tempax Glass

Power Supply

120 V AC ±10% or 230 V AC ±10%, 50/60 Hz ±1%

Power Consumption

300 VA

Operating Temperature

15 to 35℃ (59 to 95℉)

Operating Humidity

Relative Humidity 85% or less (no condensation)

External Dimensions

705 x 565 x 500 mm (28 x 23 x 20 in)
(W x D x H:not including dimensions of projections)

Mass Approx

56 kg (123 lb)

Dry Feeder Accessory

Dispersion Method

Injector-driven forced dispersion in air, using compressed air

Sample Supply Method

Vibrating feeder

Sample Ejection Method

Vacuum-driven forced ejection

Sample Concentration Adjustment Method

Adjusted by feeder vibration power

Control Method

Serial communication with LA-960 measurement unit

Controlled Items

Feeder vibration power alteration (automatic or user-set), vacuum ON/OFF, compressed air valve ON/OFF, pressure is adjustable

Measurement Time

Normally about 2 seconds from start of measurement

Operating Temperature / Humidity

15 to 35℃, 85% RH max. (no condensation) (59 to 95℉)

Outer Dimensions

332 mm x 321 mm x 244 mm (13 x 13 x 10 in)
(W x D x H:not including dimensions of projections and LA-960 measurement unit)

Power Supply

AC 100/120/230V, 50/60 Hz, 1500 VA
(Including vacuum; not including LA-960 measurement unit)

Compressed Air Pressure

0.5 MPa to 0.8 MPa

Compressed Air Supply Port

Quick connector for resin tube with 6 mm outer diameter
(Compressed air supply equipment must be provided separately)


LA-960 Standard Model
LA-960 with Dry Unit Accessory

Partica mini LA-350– Compact Routine Laser Diffraction Analyzer



HORIBA's new LA-350 Laser Diffraction Particle Size Distribution Analyzer is the ideal combination of performance, price, and packaging. The LA-350 excels in applications as diverse as slurries, minerals, and paper chemistry. Based on the advanced optical design of previous LA-series analyzers, the LA-350 strikes a harmonious balance between high-functionality, easy operation, low maintenance, and cost-effectiveness.

Bench space is used efficiently due to the LA-350’s compact size (297 mm x 420 mm). The clever design and precision, high quality manufacturing ensure convenient, reliable operation and accurate results, now with a wider size range (0.1-1,000 µm).

In addition, access to world class HORIBA support and training comes with purchase of all HORIBA products. HORIBA offers scheduled service agreements, regular instructional videos, and scheduled classes. HORIBA customers not only have the best analyzers in the business ... they are the best analysts in the business.


  • Range: 0.1 - 1,000 µm which matches the widest range of applications with a performance equivalent to many other full range systems.
  • Compact Size: Crowded lab? Multiple locations? The compact size preserves bench space and makes it possible to transport the instrument to different locations within a facility or ship to remote locations for on-site testing where it is not practical to purchase an analyzer.
  • Fast Analysis: The highly-refined optical design and algorithm provides measurement results in three easy steps: click, add sample, and review data. Data can be obtained in as little as ten seconds.
  • Powerful Software: The LA-350 uses the same fully featured software package as our other LA-series analyzers, providing a wide range of statistical measures, data analysis, and presentation tools.
  • Ease of Use: With automatic alignment, a built-in ultrasonic system for sample dispersion, and a powerful pumping system, combined with the automation features of the software, sample analysis on the LA-350 is extremely easy and straightforward. Sample analysis can be a one-button operation.


  • Flexible Operation: Readily adapt to changing measurement needs with a wider size range and flexible software.
  • Simple Operation: One button operation is possible by using the methods and sequence options built into the software.
  • Fast Analysis: Get answers now with quick measurement and analysis.




Measurement Principle

Laser diffraction and Mie light scattering theory

Size Measurement Range

0.1-1,000 μm

Analysis Time

Typical measurement takes about 10 seconds from "Measure" to "display the result".

Analysis Materials

Powders, slurries, emulsions etc.

Measurement Output

Particle size and size distribution, size related theoretical calculated values

Measurement Method

Wet method: Liquid dispersed particles with flow sampling system

Required Sample Amount

10 mg-5 g (depending on the sample size, distribution and materials)

Wet Flow System Liquid Volume

Approximately 130-230 mL

Organic Solvent Compatibility

Available in solvent resistant flow sampling version or fraction cell system (optional)

Measurement Performance Guarantee

HORIBA selected NIST traceable standard materials


USB data communication with PC

Data Processing/Results Display

Desktop or laptop PC/LCD; Printer

Operating Conditions

15° to 35° C
85% RH or less (non-condensing)


AC100/120/230V, 50/60Hz, 150VA


W 297mm x D 420mm x H 376mm (excluding PC)


Approximately 23 kg


Light source: Laser diode 5mW, λ=650nm
Analyzer Classification: Class 1A laser product
Detectors: 64 ring detectors x 1, Silicon photo detectors x 6

Wet Sampling System

Ultrasonic: Ultrasonic probe inside of the flow system, 7 steps power adjustment
Circulation pumping system: Centrifugal pump, 15 steps of speed control
Drain: Solenoid valve
Flow cell material: Borosilicate glass


Download Datasheet

Particle Shape Analysis


CAMSIZER - Dynamic Image Analysis System Particle Size

CAMSIZER Dynamic Image AnalyzerHORIBA's CAMSIZER features dynamic image analysis to provide rapid and precise particle size and particle shape distributions for dry powders and bulk material in the size range from 20µm to 30mm.


CAMSIZER XT - Dynamic Image Analysis System Particle Size

CAMSIZER XT Dynamic Image AnalyzerHORIBA's CAMSIZER XT features dynamic image analysis to provide rapid and precise particle size and particle shape distributions for dry powders and wet dispersions in the size range from 1µm to 3mm. 

PSA300The HORIBA PSA300 is a state of the art turn-key image analysis solution. Seamless integration of Clemex's powerful particle characterization software and an automated microscope with high resolution camera creates an intuitive, easy-to-use imaging workstation.




The SZ-100 nanopartica series instruments are flexible analytical tools for characterizing the physical properties of small particles. Depending on the configuration and application the system can be used as a particle size analyzer, or also used to measure zeta potential, molecular weight, (MW) and second virial coefficient (A2). Typical applications for the SZ-100 include nanoparticles, colloids, emulsions, and submicron suspensions.

Watch the SZ-100 Product Overview video (3:19)

SZ-100 Product Overview video

Particle size analysis is performed by dynamic light scattering (DLS). Depending on the physical properties of the sample, the dynamic range is 0.3 nm – 8 µm. The lower limit is influenced by concentration, how strongly the sample scatters light, and the presence of large, unwanted particles. The upper limit is influenced by the density of the sample since DLS is modeled on all motion coming from Brownian motion, not gravitational settling.

The charge on the surface of particles is characterized by the SZ-100 by measuring the zeta potential of a suspension. The sample is injected into a disposable cell and a measurement of the particle electrophoretic mobility results in the calculated zeta potential. The zeta potential of the sample is most often used as an indicator of dispersion stability. Large magnitude zeta potential values indicate that an electrostatically stabilized suspension will remain stable.  The zeta potential is often measured as a function of pH or other change in the chemistry to help formulators create new products with a long shelf life.  Conversely identifying conditions at which the zeta potential is zero (that is, the sample is at the isoelectric point) allows one to choose optimum conditions for flocculating and separating particles.

The same instrument can also be used to measure the molecular weight and second virial coefficient of proteins, polymers, and other molecules. The user prepares several solutions with known concentrations and then uses the system in a static light scattering mode to create a Debye plot, which results in a calculation of both MW and A2.


  • Particle size, zeta potential, molecular weight, and second virial coefficient all in one instrument
  • Wide range of particle sizes and concentrations
  • Particles size measurements at both 90° and 173°
  • Multiple particle size measurement modes for working with small particles and weak scatterers
  • Small volume cells for both particle size and zeta potential


Particle size: Dynamic Light Scattering (DLS) technique

Measurement range

  • Particle diameter: 0.3nm-8.0μm

Measurement Accuracy

  • Particle size: ISO 13321/22412 compliant.

  • NIST traceable polystyrene latex particle standard: 100nm measurement accuracy = +/- 2%

Measurement time

  • Approx. 2 minutes in general for particle size analysis

Sampling cell

  •  Cuvette cell

Sampling volume

  • 12μ 4ml* (* The sampling volume depends on the cell volume capacity.)

Zeta potential: Laser doppler electrophoresis technique

Measurement range

  • -200 – +200mV

Measurement time

  • Approx. 2 minutes in general

Sampling cell

  •  Dedicated disposable cell or dip cell 

Sampling volume

  • ~100μl for disposable cell

Molecular weight: Static light scattering Debye plot technique

Measurement Range

  •  Mw: 1×10- 2×107 g/mol

Sampling cell

  •  Cuvette cell


Power supply: AC 100-240V, 50/60Hz, 150VALaser: DPSS 532 nm, 10 mW Class IInterface: USB 2.0, between the analyzer and PCExternal dimensions: 385(D) ´ 528(W) ´ 273(H) mm (Except for projections)Mass approx: 25kgTemp control range: 1-90 for particle size, 1-70 for zeta potentialOperating temp and humidity: 15-35, Relative humidity = 85% or less, no condensationCondensation control: Purge port connection available

Download Datasheet