The most high-end class accurate and reliable laser diffraction particle sizing instrument HORIBA Partica LA-960 has been upgraded to the LA-960V2. HORIBA particle sizing instrument recognized as its strong point of submicron range measurement capability and the new model includes these advantages with some new features. HORIBA’s experience in the use of data algorithms has evolved to meet the expectations of the customer demanding the highest accuracy and resolution.


  • Latest Technology and Highest Performance

    The dynamic wide measurement range; 0.01- 5000 microns (up to 3000 microns for wet method)

    The LA-960 incorporates the previous strengths over a broader range of sizes. 3 dimensional data simulation which generates scattered light patterns for HORIBA original optical layout are used for the calculation.

    The results can be compared with the theoretical results including all the optical component parameter effects. The comparison allows for the selection of the best approach of the size and distributions. Certified samples as small as 20 nm can be handled by the new algorithms.

  • Performance Guaranty

    • Guaranteed high data accuracy of ±0.6%
    • ISO13320 compliance
    • Traceability support

    As well as the data accuracy and reproducibility assurances, the instrument-to-instrument are confirmed with standards for each analyzer. The testing material is poly-dispersed standard of glass beads with over one decade of distribution.

  • World wide user accepted quality
    HORIBA has focused on the product quality of the most essential key part of the instrument; the light source and detector alignment. The circulation system efficiency, speedy operation and easy maintenance are based on the requirements from the various users of high-tech research laboratories and quality controlling managements. We also offer some different maintenance support programs after the sale depending on the user’s intended use, analysis circumstance and operational frequency.

  • Optical Component & Sample Preparationn System
    The optical component and sample preparation system (Circulation system) unified model that enables smooth and productive analysis operations.

  • Evolutionary Advance of the LA Series Software

    • All at a glance GUI design! Easy and functional screen layout
      Method expert function generates appropriate measurement conditions and reviews each analysis.  Flexible automatic measurement design and settings enable user friendly operations.

    • Data correlation software available; LA-920, LA-950 and LA-950V2



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









Standard optical system

Aqua type Ethanol can be used as a dispersing additive. (0.01 - 3000μm)   

Standard circulation system





Pressurized fill adapter





Liter flow





Peristaltic pump system





Solvent type (0.01 - 3000μm)

Standard pump system






Fraction cell holder

Mini flow with ultrasonic unit (0.01- 1000μm)

Paste cell holder

Dry unit (0.1 - 5000μm)

Auto sampler


Slurry sampler



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