Paper smoothness tester

Implementation standards:

ISO 5627 Paper and board - Determination of smoothness (Buick method)

GB/T 456 "Paper and board smoothness determination (Buick method)"

Scope of Application:

This instrument is designed for determining the smoothness of paper and board materials according to the Bekk principle. The test involves placing a sample of paper or board against a highly polished glass surface under a controlled clamping pressure. A vacuum is then applied to the space between the paper and the glass plate, and the time taken for a specific volume of air to leak across the paper surface and under the clamping ring is measured. This air leakage time is the indicator of smoothness. The tester is widely used in:

Paper and board manufacturing for quality control and process optimization.

Printing industry to assess the suitability of paper for various printing processes.

Research and development laboratories studying the surface properties of paper and other sheet materials.

Quality inspection centers verifying product specifications.

The instrument is suitable for measuring the smoothness of a wide range of paper and paperboard grades.

Product Advantages:

Measures Key Surface Property: Quantifies smoothness, a fundamental characteristic affecting print quality, ink lay, and coating application.

Standard Compliant (Bekk Method): Operates according to internationally recognized Bekk method standards (ISO, GB, TAPPI).

Quantitative Measurement: Provides an objective numerical value for smoothness (in seconds).

Multiple Measuring Ranges: Offers different time ranges and vacuum container volumes to accommodate materials with varying degrees of smoothness, from very rough to very smooth.

High Timing Accuracy: Provides precise measurement of the air leakage time.

Controllable Parameters: Allows for precise control of contact pressure and vacuum levels as specified by the standards.

Main parameters:

1. Power supply: AC220V±10% 50HZ

2. Measuring range: (1 —— 99999)s, divided into (1 —— 15)s, (15 —— 300)s, (300 —— 99999)s and automatic transmission (not more than 200s)

3. Timing accuracy: timing 1000s, error is not more than ±1s

4. Contact pressure (kPa) : 100±2

5. Vacuum container system volume (ml) : large vacuum container 380±1. small vacuum container 38±1

6. Vacuum setting range (kPa) :

I file 50.66 —— 48.00

File II 50.66 —— 48.00

Grade III 50.66 —— 29.33

Automatic transmission unlimited

7. Discharge air volume (ml)(50.66kPa to 48.00kPa) :

Large vacuum container: 10.00±0.20

Small vacuum container: 1.00±0.05

8. Instrument size (length * width * height)mm: 325*290*430

9. Net weight: 30kg

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