Made to order
- Installation & training on-site alignment and operator onboarding
- Method + sample run a droplet or powder measurement on your own sample
Microtrac AEROTRAC II Spray Particle & Droplet Size Analyzer – Laser Diffraction | 0.5–2000 µm
Laser-diffraction spray & droplet size analyzer — 0.5 to 2,000 µm across three lenses, capturing a spray in as little as 0.02 ms with multiple-scattering correction standard.
- ✔ Range 0.5–2,000 µm · F100 / F300 / F600 lenses · 32-segment ring detector
- ✔ Real-time spray capture from 0.02 ms · continuous mode to 600 s
- ✔ Multiple-scattering correction standard · wet, dry & auto-trigger
- ✔ Lead time: configured to order — request current timeline
What your spray lab actually checks
Real-time droplet sizing
Capture intervals from 0.02 ms resolve how a spray atomizes across a full pulse — D50, Sauter mean diameter and density index, with multiple-scattering correction standard so dense sprays size accurately instead of biased fine.
An applications engineer on the line
Lens choice, spray-jig setup and SOP method development from engineers who run atomization and powder characterization in-house at ATO Lab. Sub-4h reply, NDA standard.
The Microtrac AEROTRAC II is a laser-diffraction analyzer built for sprays and airborne particulates — atomized droplets, mists, powder coatings and aerosols from 0.5 to 2,000 µm. Three interchangeable lenses cover the full range, a 32-segment ring detector captures a spray in as little as 0.02 ms, and multiple-scattering correction is standard so dense sprays are sized accurately instead of biased fine.
Why spray and formulation labs choose the AEROTRAC II
Real-time droplet sizing that resolves how a spray evolves — not just a single averaged number.
Real-time spray dynamics
Capture intervals from 0.02 ms freeze a spray as it develops — D50, Sauter mean diameter (SMD) and mode diameter per pulse, not one blurred average.
0.5–2000 µm on three lenses
F100 (0.5–350 µm), F300 (1.4–1000 µm) and F600 (2.8–2000 µm) cover fine mists to coarse sprays — pick the lens that matches your droplet range.
Multiple-scattering correction
Dense sprays scatter light more than once and read artificially fine. AEROTRAC II corrects for it as standard, so high-concentration sprays size true.
Wet, dry and auto-trigger
A 32-element ring detector with automatic optical-axis adjustment. Batch cell for wet, open path for dry, and auto-start on detected spray — set up in a tight hood or line.
How Additive Plus supports it
You get a configured, installed analyzer with a method dialed in on your spray — not a boxed instrument and a manual.
Configure to your spray
We match the lens, batch cell or dry path and the fixing jig to your nozzle, injector or powder before it ships.
Install & train
Factory-trained engineers install, align and train your operators — trigger setup, measurement and data handling on-site.
Method & QC support
We help build the SOP — D50, SMD and density-index reporting and a repeatable baseline so spray results stay comparable run to run.
What the AEROTRAC II measures
Full technical specifications are in the Specifications tab. Key measurement capability:
| Parameter | AEROTRAC II |
|---|---|
| Measuring range | 0.5–2,000 µm (lens-dependent: F100 / F300 / F600) |
| Measuring principle | Laser diffraction with multiple-scattering correction |
| Light source | Semiconductor laser, 635 nm, 3.5 mW (Class 3R) |
| Detector | 32-element ring detector, automatic optical-axis adjustment |
| Measuring time | Spray: 0.02–500 ms · continuous: 1–600 s |
| Reported data | D50, SMD, mode diameter, frequency / cumulative distribution, density index |
One analyzer, three ways to measure
Configure the AEROTRAC II to your spray, batch or dry stream.
Typical applications
Where real-time droplet and spray sizing supports development and QC.
Not sure the AEROTRAC II is the right analyzer?
If you measure settled powders or liquids rather than live sprays, another Microtrac fits better.
Size + shape in oneMicrotrac SYNCCompare analyzer →
Nano / sub-micron mistMicrotrac NANOTRAC WAVE IICompare analyzer →
Why source the AEROTRAC II through Additive Plus
- Authorized US channel — sales, installation, training and service in one place.
- We run atomization and powder characterization in-house at ATO Lab — you talk to engineers who use these methods, not a ticket queue.
- Method development on your spray — lens choice, jig setup, wet vs dry and a repeatable D50/SMD SOP.
- Paid sample measurement before you commit — send us your spray setup or sample and get the full size report. Sub-24h response, NDA standard.
| Brand | Microtrac |
| Country of origin | Germany |
| Measurement principle | Laser diffraction |
| Measuring range | F100 lens: 0.5 to 350 µm F300lens: 1.4 to 1000 µm F600 lens: 2.8 to 2000 µm |
| Light source | Semiconductor laser Wavelength: 635 nm Output: 3.5 mW Laser class: CLASS 3R |
| Detector | 32-element ring detector (with automatic optical axis adjustment function |
| Measuring time | Spray measurement: 0.02 to 500 msec Continous measurement: 1 to 600 sec |
| Number of measurements | Spray measurement: 1 to 100 times Continous measurement: 1 to 9,999 times |
| Data | Particle size distribution (frequency/cumulation), summary data (D50% particle size, SMD, mode diameter etc.) density index |
| Sample Cell | Material: Tempax glass (with coating) Capacity: 5 to 7 ml |
| Ambient temperature | 10 to 35 °C |
| Ambient humidit | 20 to 80% R.H. (no condensation) |
| Power requirements | 85 to 264 VAC, 47 to 63 hz |
| Operating unit | Windows PC (including laptop PC) |
| Dimensions (W x H x D) | Light emission module: 6.69×9.05×9.44 in / 170×230×240 mm; Detection module: 23.42×9.05×9.44 / 595×230×240 mm; For connected modules (option): 39.37×9.05×13.38 in / 1000×230×340 mm |
| Weight | Light emission module: 12.1 lbs / 5.5 kg; Detection module: 25.3 lbs / 11.5 kg (with F300 lens attached); For connected modules (option): 60 lbs / 27 kg |
Product videos
We run this lab daily. Send a sample.
Send us a powder sample and we'll run PSD and morphology on the actual instrument, then share the data and method — so you see repeatability before you buy. We can also run analysis as a service while you evaluate.
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- ✔ Lead time: configured to order — request current timeline
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- ✔ Lead time: configured to order — request current timeline
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Gas-displacement pycnometer for true and skeletal density of powders and solids — 0.03% accuracy, helium or nitrogen, with 10, 3.5 and 1 cm³ sample cells.
- ✔ Accuracy 0.03% of F.S. + 0.03% of reading · repeatability 0.02%
- ✔ He / N₂ gas displacement · greaseless one-touch cell
- ✔ Three cell sizes: 10 · 3.5 · 1 cm³
- ✔ Lead time: configured to order — request current timeline
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Tri-laser diffraction particle size analyzer — 0.01 to 2,800 µm, wet and dry on one bench, with sub-micron resolution from two true blue lasers and Modified Mie sizing for non-spherical powders.
- ✓ Range 0.01–2,800 µm · 151-segment fixed optics
- ✓ ISO 13320 · FDA 21 CFR Part 11 data integrity
- ✓ Install, training & method setup included — lead time confirmed at quote
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Streaming-potential zeta and particle-charge analyzer with fast titration — five parameters at once (zeta, streaming potential, conductivity, pH, temperature) for particles 0.3 nm to 300 µm at up to 40 vol%.
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- ✔ Lead time: configured to order — request current timeline
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- ✔ Lead time: configured to order — request current timeline
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· Lead time: configured to order — request current timelineCommon questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
What size range does the Microtrac AEROTRAC II measure?
How fast can the AEROTRAC II capture a spray?
Does the AEROTRAC II handle dense, high-concentration sprays?
Can the AEROTRAC II measure dry powders as well as sprays?
What data does the AEROTRAC II report?
What measurement principle and laser does the AEROTRAC II use?
What is the lead time, and can Additive Plus help set up a method?
Place your order, or talk to an engineer first
Order Microtrac AEROTRAC II Spray Particle & Droplet Size Analyzer – Laser Diffraction | 0.5–2000 µm direct, or talk to materials engineer