Automatic Grindometer
Electronic Grindometer
Automatic Hegman Gauge
Automatic Fineness of Grind Gauges
Electric Fineness of Grind Gauges
Expert Particle Size Distribution Analysis
ASTM D333 ASTM D1210 ASTM D1316
ISO 1524 DIN 53203 DIN EN 21524
BS 3900-C6 FTMS 141a 4411.1
PR NF T30-046 AS/NZS 1580.204.1

Automatic Fineness of Grind Gauge QPI‑EGM2800 - Features:

The Fineness of Grind Test Method determines the particle size and dispersion quality of pigments, inks, coatings, chemicals, and related liquid or semi‑liquid formulations. The test evaluates how finely solid particles are dispersed within a vehicle system by visually identifying the point at which particles become detectable on a standardized Fineness of Grind Gauge.

The Automatic Grindometer QPI‑EGM2800 performs this test with a fully automated, electronically controlled blade motion to ensure maximum accuracy, repeatability, and operator‑independent consistency.

Test Principle

A defined amount of sample is applied onto the surface of a Fineness of Grind Gauge (Single Channel, Double Channel, Wide Channel, Hegman, NPIRI, etc.). The gauge features a precision‑machined channel with a depth that gradually decreases from a maximum value to zero.

During the test:

1. The Grindometer Blade moves across the gauge surface.

2. As the channel becomes shallower, larger particles begin to appear as streaks or scratches.

3. The position where particles first become visible corresponds to the fineness of grind or particle size of the sample.

This visual evaluation is the globally accepted method for determining dispersion quality.

Automatic Test Procedure with QPI‑EGM2800

The QPI‑EGM2800 enhances the traditional manual method by performing the blade motion automatically with:

• Preset speed

• Preset test load

• Preset blade angle

• Electronically controlled linear motion

This eliminates operator‑dependent variations such as:

• inconsistent blade pressure

• uneven blade angle

• fluctuating speed

• differences between operators

• fatigue or manual handling errors

The result is significantly increased accuracy, higher repeatability, and consistent test results across all operators and test series.

How the Automatic Grindometer Improves the Method

The QPI‑EGM2800 integrates:

• precision microchip control

• a high‑accuracy motor drive

• adjustable test load settings

• a large backlit LCD display

• open sample area compatible with most existing Fineness of Grind Gauges

• robot‑arm‑like mechanics ensuring identical blade motion every time

This ensures that every test is performed under identical mechanical conditions, providing laboratory‑grade consistency and eliminating human variability.

Suitable Sample Types

The Automatic Grindometer is ideal for:

• paints & coatings

• inks & pigments

• varnishes

• chemicals

• pharmaceuticals

• food products

• chocolate & confectionery suspensions

• cosmetic dispersions

• and related liquid or semi‑liquid formulations

Applicable Standards

The QPI‑EGM2800 supports international test standards, including:

• ASTM D333

• ASTM D1210

• ASTM D1316

• ISO 1524

• DIN EN 21524

• DIN 53203

• BS 3900‑C6

• PR NF T30‑046

• AS/NZS 1580.204.1

• FTMS 141a 4411.1

Summary

The Automatic Grindometer QPI‑EGM2800 transforms the traditional fineness of grind test into a high‑precision, automated, operator‑independent measurement method, ensuring:

• higher accuracy

• higher repeatability

• reduced operator influence

• compatibility with existing gauges

• compliance with international standards

This makes it the ideal instrument for laboratories requiring premium dispersion quality control.