Automatic Laser Particle Size Analyzer
Five-model family of automatic laser diffraction particle size analyzers covering 0.01–2000 µm across dry, wet, and combined dispersion methods. Up to 127 detector channels, <0.5% repeatability, and automated measurement workflows for powders, suspensions, emulsions, and aerosols in pharmaceutical, materials science, chemical, and industrial QC applications.
Overview
The Automatic Laser Particle Size Analyzer series applies laser diffraction to determine particle size distributions by measuring the angular intensity of scattered light. Five configurations span dry-only, wet-only, and combined dry/wet methods, with measurement ranges from 0.01 µm to 2000 µm depending on model. All units deliver <0.5% repeatability on D50 values and feature automated dispersion, fully integrated optics, and PC-based analysis software.
Key Features
- Broad size coverage — 0.01 µm to 2000 µm across the five-model family
- Three dispersion modes — dry (high-pressure air), wet (ultrasonic + circulation), and combined
- Up to 127 detector channels — wide angular range for high-resolution size distributions
- High precision — accuracy and repeatability <0.5% on D50 (D50 <1% on 2020L)
- Automated dispersion control — adjustable air pressure (dry) or ultrasonic + pump speed (wet)
- Ultrasonic wet disperser — 40 kHz, 80 W with 100–3950 rpm circulation pump
- High-pressure dry disperser — 0.1–0.8 MPa oil-free compressed air
- PC-based analysis software — automated measurement, SOP storage, result export
- Universal power input — AC 220 V/110 V, 50/60 Hz
Applications
Particle size characterization for pharmaceutical active ingredients and excipients, cement and mineral powders, pigments and coatings, food and beverage ingredients, polymer and rubber particles, metal powders for additive manufacturing, agrochemical formulations, cosmetic emulsions, and environmental aerosol sampling. Suited to QC laboratories, research institutions, and production-line monitoring requiring traceable, automated size distribution measurements.
Model
- BB-BPSA-2020L
- BB-BPSA-5100H
- BB-BPSA-5200H
- BB-BPSA-6100C
- BB-BPSA-6100D
Weight
- 29.98 kg
Dimensions
- L: 50.0 mm
- W: 17.2 mm
- H: 17.3 mm
Model Selection Guide
| BB-BPSA-2020L | Dry method — 0.1–800 µm — 87 channels |
| BB-BPSA-5100H | Wet method — 0.1–800 µm — 76 channels |
| BB-BPSA-5200H | Wet method — 0.1–1000 µm — 86 channels |
| BB-BPSA-6100C | Wet method — 0.1–2000 µm — 96 channels |
| BB-BPSA-6100D | Dry & wet — 0.01–1500 µm — 96/127 channels |
Measurement Performance
| Accuracy (D50) | <0.5% (<1% on 2020L) |
| Repeatability (D50) | <0.5% (<1% on 2020L) |
| Test principle | Laser diffraction (Mie scattering theory) |
| Result parameters | D10, D25, D50, D75, D90, D97, Dav, specific surface area |
Wet Dispersion System
| Ultrasonic frequency | 40 kHz |
| Ultrasonic power | 80 W |
| Circulation pump | 100–3950 rpm |
| Flow rate | 0–10 L/min |
| Models | 5100H, 5200H, 6100C, 6100D (wet mode) |
Dry Dispersion System
| Dispersion method | High-pressure compressed air |
| Pressure range | 0.1–0.8 MPa, continuously adjustable |
| Air source | Oil-free compressor (included) |
| Models | 2020L, 6100D (dry mode) |
Environmental & Power
| Power supply | AC 220 V / 110 V, 50/60 Hz |
| Operating temperature | 10–35°C |
| Relative humidity | ≤85% (non-condensing) |
Dimensions & Weight by Model
| BB-BPSA-2020L | 700 × 495 × 300 mm | 35 kg |
| BB-BPSA-5100H | 980 × 410 × 450 mm | 30 kg |
| BB-BPSA-5200H | 800 × 280 × 335 mm | 38 kg |
| BB-BPSA-6100C | 800 × 280 × 335 mm | 38 kg |
| BB-BPSA-6100D | 1040 × 505 × 335 mm | 50 kg |
Model Comparison
| Model | Method | Range | Channels | Accuracy | Weight | Price |
|---|---|---|---|---|---|---|
| BB-BPSA-2020L | Dry | 0.1–800 µm | 87 | <1% | 35 kg | $23,590 |
| BB-BPSA-5100H | Wet | 0.1–800 µm | 76 | <0.5% | 30 kg | $11,900 |
| BB-BPSA-5200H | Wet | 0.1–1000 µm | 86 | <0.5% | 38 kg | $13,190 |
| BB-BPSA-6100C | Wet | 0.1–2000 µm | 96 | <0.5% | 38 kg | $21,690 |
| BB-BPSA-6100D | Dry & Wet | 0.01–1500 µm (wet) 0.1–1500 µm (dry) |
96 / 127 | <0.5% | 50 kg | $23,900 |
Practical Tips
Water Temperature
Cleaning Agent Selection
Software Safety
Optical Path Alignment Requires Water
Setup Guide
What’s in the Box
- Laser particle size analyzer main unit with integrated wet dispersion module
- Dry dispersion module with vibration feeder and sample chute
- Oil-free mute air compressor with dust filtration
- Freeze dryer (cold dryer) for dry dispersion moisture removal
- Suction pump and drainage pipe
- Communication cable (USB)
- Power cable
- Cleaning agent bottle
- Sample window cleaning tools and mirror cleaning paper
- Analysis software (portable version, no installation required)
- USB dongle for software license
- Refractive index material database
- User manual and operational documentation
Warranty
Standard manufacturer warranty included. Extended warranty and service contracts available upon request. Instrument includes self-protection function for misoperation to prevent accidental damage.
Compliance
What is the difference between the dry and wet measurement methods?
Dry method (2020L, 6100D): powder is dispersed in a stream of high-pressure air (0.1–0.8 MPa) and transported through the laser beam. Best for free-flowing powders, materials that react with solvents, and samples requiring no cleaning between runs. Wet method (5100H, 5200H, 6100C, 6100D): particles are suspended in a solvent and circulated through the measurement cell using a pump (100–3950 rpm) combined with 40 kHz / 80 W ultrasonic agitation. Better for fine particles below 0.1 µm and materials where agglomeration in air would skew results. The 6100D supports both modes.
Which model covers the finest particles?
The BB-BPSA-6100D reaches 0.01 µm (10 nm) in wet mode with 127 detector channels, making it the choice for nano-scale particles, fine pharmaceutical APIs, and sub-micron emulsions. All other models start at 0.1 µm.
Which model handles the largest particles?
The BB-BPSA-6100C reaches 2000 µm (2 mm) in wet mode, suitable for coarse powders, granules, and large mineral particles. The 6100D covers up to 1500 µm in both dry and wet modes. The 2020L (dry) covers up to 800 µm.
Can a single unit measure both powders and liquid suspensions?
Yes — the BB-BPSA-6100D is a combined dry-and-wet instrument. It includes both the high-pressure air disperser for dry powders and the ultrasonic wet-dispersion cell, switchable without reconfiguring the optical bench. All other models are dedicated dry (2020L) or dedicated wet (5100H, 5200H, 6100C).
What power supply do these instruments require?
All five models accept AC 220 V / 110 V, 50/60 Hz. The 110 V configuration is optional and must be specified at order — confirm your local supply before ordering.
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