With best-in-class speed, the Shimadzu SALD-2300 can measure particles from 17 nm to 2500 µm. With a large collection of modular accessories, the SALD-2300 is versatile enough to determine the size of particles in either wet or dry states, and can measure in either automated or manual modes. Its industry-leading 1-second measurement speed allows for real-time monitoring of phenomena such as particle swelling, coalescence, and aggregation.

The gracefully-designed Wing Sensor allows for efficient and accurate detection of scattered light in the forward direction. Sensors positioned on the side and behind the sample can detect light scattered by smaller particles. This sensor arrangement ensures that a wide size range of particles can be measured.

Wing Sensor

The SALD-MS23 Sampler Unit allows users to either manually or automatically control solvent filling, dilution, sonication, and rinsing. A powerful pump allows for materials as dense as stainless steel balls to be circulated. Most importantly, the construction of the SALD-MS23 does not limit the measurement range of the SALD-2300.

SALD-2300 Instrument and Function Diagram

The SALD-BC23 Batch Cell is a compact, cost-effective accessory for measuring particle size with the SALD-2300. The included solvent-resistant quartz cell with a PTFE funnel provides flexibility for different sample suspensions and formulations. Its 12 mL sample volume ensures that measurements can be performed even when only small amounts of sample are available. A vertical stirrer to prevent sedimentation of heavier particles is also included.

SALD-BC23 Batch Cell

The SALD-DS5 provides several different modes for measuring dry, as-is samples. The One-Shot mode allows for a small amount of material to be placed into a hopper and suctioned across the laser beam by pressing an ejector button. This mode is desirable when only a small amount of material is available. The Hand-Shot mode is best used to measure powders out of a beaker, bag, or other container. The suction nozzle can be placed directly into the container and material is sampled once the hand switch is pressed. The Cyclone-Type measurement is a computer-controlled mode where the sampling speed and air pressure are controlled through the WingSALD II software. Upon starting the measurement, a combination of suction and rotation of the sampler unit creates a “cyclone” effect that shears and disperses materials to reduce agglomeration. The combination of dispersion and computer control allows for better reproducibility in measurements. Transfer of all material to a dust collector downstream from the instrument makes waste disposal simple.

Measurement Modes Diagram

The SALD-HC23 High Concentration Cell is a unique accessory that allows for measurement of pastes, creams, and slurries without dilution. While it is common to suspend samples in large amounts of solvent prior to measurement during particle size measurements, there are occasions where this dilution can cause fundamental changes in the particle size. With the High Concentration Cell, samples can be deposited as-is into a pair of glass slides and measured. The small path length between the slides reduces the chances that multiple scattering can adversely affect the measurement.

Sample Cell Holder and Measurement Diagrams

While Shimadzu provides several sample slide designs to allow for known volumes to be deposited, standard disposable microscope slides can also be used. This feature means that accurate and reliable data can be obtained on as-is samples in an economical fashion.

Sample Cell Holder and Measurement Diagrams


WingSALD II is the user-friendly software that is included for all current SALD instruments. Because laser diffraction particle size measurements require input of the refractive index of the sample, the correct values to input may not always be known for new samples. During sample setup, an entry from a database of over 200 materials can be used to obtain a range of refractive indices that best describe the sample. After performing a measurement, the innovative Kinoshita method then automatically provides a series of particle size distributions based on the “best fit” of the light intensity data with the refractive index range. This feature greatly reduces the potential guesswork needed to determine the exact refractive index value of the sample.

WingSald II Software Screens

When the SALD-2300 must be used in a demanding quality control operation, the Assist function can be used to ensure complete procedural reproducibility. SOPs can be programmed to ensure that the same process is followed every time. Additionally, administrator rights can be assigned to ensure that only authorized personnel can make modifications or perform non-SOP operations.

WingSald II Software Screens

General Specifications

Measurement principleLaser Diffraction Method
Measurement rangeSALD-MS23: 17nm(0.017μm) to 2500μm
SALD-BC23: 17nm(0.017μm) to 400μm
SALD-HC23: 30nm(0.030μm) to 280μm
SALD-DS5: 300nm(0.3μm) to 2500μm

Note 1: The measurement range varies according to the shape etc. of the particle.

Measurement Unit: SALD-2300 (P/N: 347-61700-42[115V], 347-61700-44[230V])

Light sourceRed Semiconductor laser (Wavelength 680 nm)
Light detectorDetector elements for UV semiconductor laser
Total 84 elements (78 forward, 1 side, 5 back)
System ComplianceClass 1 Laser Product, CE compliant
Required power supply115 or 230 VAC as ordered 100 VA
Dimensions & weightW680mm×D280mm×H430mm, 31kg
Operating EnvironmentTemperature: 10 to 30°C, Humidity: 20 to 80 % (no condensation)

Note 2: Reference sample and USB cable (2 m) supplied as standard

Sampler: SALD-MS23 (P/N: 347-61701-42[115V], 347-61701-44[230V])

Dispersing bathCapacity: 100~280cm3
SonicatorFrequency about 32 kHz, output about 40 W
Liquid PumpRadial pump, maximum flow rate 2000cm3/min
Liquid Pump MaterialStainless (SUS 304, SUS 316), Tetrafluoroethylene (PTFE),Perfluoroelastmor (FEP) or Kalrez, Thermoflon Pascal (inside)
Liquid Supply PumpDiaphragm pump, maximum flow rate 750cm3/min
Liquid Supply Pump MaterialTetrafluoroethylene, polyvinyl dene fluoride
Flow CellQuartz glass
Required power supply115 or 230 VAC as ordered, 200 VA
Dimensions & weightW390mm×D520mm×H430mm,18kg
Operating EnvironmentTemperature: 10 to 30°C, Humidity: 20 to 80 % (no condensation)

Note 3: USB cable (2 m) supplied as standard

Batch Cell: SALD-BC23 (P/N: 347-61702-42)

Cell MaterialQuartz glass
Required Liquid VolumeApprox. 12 cm3
Stirrer MechanismUp-and-down movement of blade
Dimensions & weightW100mm×D120mm×H140mm, 0.8kg
Operating EnvironmentTemperature: 10 to 30°C, Humidity: 20 to 80 % (no condensation)

High-concentration Sample Measurement System: SALD-HC23 (P/N: 347-61703-42)

Cell MaterialBorosilicate glass
Required Liquid VolumeApprox. 0.15 cm3
Dimensions & weightW20mm×D100mm×H9mm, 0.2kg
Operating EnvironmentTemperature: 10 to 30°C, Humidity: 20 to 80 % (no condensation)

Cyclone Injection Type Dry Measurement Unit: SALD-DS5 (P/N: 347-61706-42[115V], 347-61706-44[230V])

Sample suction typesCyclone type / One shot type / Hand shot type
Suction nozzleCan be selected from 3 types
Sampling Unit Specifications
SystemCyclone type
Communication methodUSB (PC control)
Required power supply115/230VAC(±10%), 100VA, 50/60Hz (excluding dust collector and compressor)
Dimensions & weightW 240×D 310×H 210 mm, 10 kg
Operating EnvironmentTemperature: 10 to 30°C, Humidity: 20 to 80 % (no condensation)
Pressure Regulator Specifications
Primary pressure0.6 to 0.8 MPa
Secondary pressure0.05 to 0.5 MPa
Filtration ratingRemoving particles of 5 μm or larger
Connection to air sourceTube of 6 mm outside diameter
Communication methodUSB (PC control)
Required power supply115/230VAC(±10%), 100VA, 50/60Hz (excluding dust collector and compressor)
Dimensions & weightW 130×D 223×H 233 mm, 3 kg
Operating EnvironmentTemperature: 10 to 30°C, Humidity: 20 to 80 % (no condensation)
Requirements for compressor and dust collector
CompressorOutput0.4 kW
Minimum pressureApprox. 7 kgf/cm2 (approx. 0.69 MPa)
Air discharge45 L/min
Tank volumeApprox. 30 L
Dust CollectorTypeVacuum cleaner (Paper pack type)
Dust collecting efficiencyMore than 99% for 0.3 μm particles
Capacity2.0 m3/min or more
VacuumApprox. 2000 mm Aq or lower
Suction hose diameterApprox. 32 mm

Software Specifications


Measurement and Data Display Functions
Measurement of Particle Size DistributionAllows measurements using measurement assistant function (interactive process based on SOP)
Refractive Index SettingAutomatic refractive index calculation function (LDR method: Light Intensity Distribution Reproduction Method) makes setting the refractive index easy.
Real-Time DisplayParticle size distribution/light intensity distribution simultaneous display
Diagnostics/AdjustmentsSelf-diagnostic function and cell check function
Recalculation of Particle Size DistributionBatch recalculation of max. 200 distributions
Display of Particle Size Distribution DataDisplays overlay of max. 200 distributions
Display of Light Intensity DistributionDisplays overlay of max. 200 distributions
Statistical Data ProcessingMax. 200 sets of data (also allows overlaying max. 200 data sets)
Time-Series ProcessingMax. 200 sets of data
3-Dimensional GraphingMax. 200 sets of data
Data Transfer via Clipboard[Image Output]: Outputs entire data sheet or graph only. [Text Output]: Outputs summary data, particle size distribution data, or light intensity distribution data.
Data SortingSorts by file name, sample ID, sample number, or refractive index
Output Conditions
Particle Size (μm) DivisionsFixed 51 or 101 divisions : User settable 51 divisions
Particle Amount (%) DivisionsFixed 51 divisions : User settable 51 divisions
Distribution BasisCount, length, area, or volume
Expression of Cumulative DistributionOversized or undersized
Expression of Frequency Distributionq, q / Δ×, q / Δlog ×
Smoothing Levels10 levels
Distribution Function FittingRosin-Rammler distribution, logarithmic Gaussian distribution
Data Shifting±10 levels
Report FunctionSingle data sets (6 templates), overlaid data (5 templates), statistical data, time-series data, or 3D data can be selected and output using batch processing
Data Analysis Functions
Scattering Angle Evaluation FunctionEvaluates scattering characteristics within micro angle regions for samples such as optical films and sheets.
Data Emulation FunctionsEmulates measurement results from other instruments and measurement principles, using SALD series measurement results.
Mixture Data Simulation FunctionSimulates particle size distributions using any mixture ratio of multiple particle size distributions.
Data Connection FunctionCombines two particle size distributions with different measurement ranges at any particle size point to create a single particle size distribution.
Continuous Measurement FunctionContinuously measures changes in particle size distributions and particle diameters over time, at intervals as short as one second, and saves the results.

Note 4: The LDR method automatically calculates an appropriate refractive index based on consistency between the actual measured light intensity distribution and one reproduced (recalculated) from particle size distribution data. This method was developed by Shimadzu and published in two technical papers. It is sometimes called the "Kinoshita Method", in academic communities, after the name of Shimadzu's engineer.

PC Requirements

The software is included standard on a CD-R with the SALD system (optical system). Install the software on a PC that meets the following specifications.

OSWindows 7
CPUPentium Dual-Core 2.5GHz min.
HDDMin. 1 GB of free space required.
CD-ROM DriveRequired for software installation
USB PortUnit NameRequired USB port
SALD-23001 port
SALD-MS231 port
SALD-DS52 ports
Printer1 port
DisplaySXGA (1280×1024 pixels) min.
PrinterMust be compatible with operating system.

*1:Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

*2: Other company names and product names mentioned in this document are registered trademarks or trademarks of their respective companies.

*3: The TM and ® symbols are omitted in this document.