Automatic Smoothness Tester

The Automatic Smoothness Tester is an upgraded version of the AT-PH-1, a newly designed intelligent instrument for testing the smoothness of paper and paperboard based on the internationally accepted Bekk smoothness principle. In its mechanical design, the traditional lever and weight manual pressure application structure has been eliminated, replaced by a high-precision pressure sensor that applies a standard pressure of 100±0.5kPa, significantly reducing the instrument's size and weight while providing more precise pressure. The test area is 10±0.05 cm², with a measuring range of 1-99999 sec...

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E-mail：anmt_test@126.com

WhatsApp：+86 133 5666 3110

Detailed Description
Product Encyclopedia

Product Introduction
The Automatic smoothness tester operates on the Bekk method principle. Under a specified contact pressure and test area, it measures the time required for a given volume of air to pass through the gap between the specimen surface and a glass anvil, expressed in seconds (s) as the smoothness value. The slower the air passes through, the longer the time, indicating a smoother surface. The instrument uses a high-precision pressure sensor and stepper motor to automatically apply standard pressure and precisely control the air leakage rate. Advanced airflow detection technology automatically identifies the required measuring range and switches between ranges accordingly. The large color touchscreen enables one-touch operation, with automatic result printing upon test completion.

Key Features
Fully Automatic One-Touch Testing No manual pressure setting required; one key initiates the entire testing process for ultimate operational convenience.
High-Precision Pressure Sensor Loading Replaces traditional lever and weight structure; pressure accuracy of 100±0.5kPa with a smaller footprint, lighter weight, and more precise pressure.
Stepper Motor Smooth Pressing Stepper motor-driven pressing mechanism operates smoothly without impact, eliminating specimen damage common with traditional weights or levers.
Automatic Range Identification and Switching Advanced airflow detection technology automatically identifies the required range and switches between three ranges, precisely controlling the air leakage rate.
Imported Oil-Free Vacuum Pump Uses an imported oil-free vacuum pump requiring no oil and zero lifelong maintenance, ensuring stable and reliable operation.
Large Color Touchscreen Intuitive interface with clear display and touch controls for easy operation and visual monitoring of the testing process.
Built-in Thermal Printer Thermal printer mechanism requires no ink or ribbon, operates silently, and prints at high speed.
Standard Multi-Interface Configuration Standard built-in thermal printer with optional RS232 interface and PC software for convenient data communication and management.

Main Technical Specifications

Parameter	Specification
Test Area	10 ± 0.05 cm²
Measuring Range	1 – 99999 s, in three ranges: (1-15)s, (15-300)s, (300-99999)s
Pressure	100 ± 2 kPa (loading accuracy 100±0.5kPa)
Timing Error	≤1 s (at 1000 s)
Printer	Built-in thermal printer
Communication Interface	RS232 (optional)
Net Weight	≤39 kg
Power Supply	AC 220 ± 10% V, 50Hz
Working Environment	Temperature 10 – 35°C, relative humidity ≤ 85%
Overall Dimensions (L×W×H)	330 × 360 × 420 mm
Package Dimensions (L×W×H)	400 × 400 × 450 mm
Net Weight (Instrument)	26 kg
Package Weight	32 kg
Applicable Standards	GB/T 456, JJG 62, ISO 5627

FAQ
1. What are the advantages of the automatic smoothness tester compared to older Bekk smoothness testers?
It eliminates the traditional manual lever and weight pressure application, using a pressure sensor for automatic loading with higher accuracy (100±0.5kPa). The stepper motor provides smooth, impact-free pressing to avoid specimen damage. One-touch testing is fully automatic and simple to operate. The size and weight are also significantly reduced.

2. How does the automatic three-range switching work?
The built-in advanced airflow detection technology senses the smoothness level of the specimen surface during testing, intelligently determines the required range based on air flow speed, and automatically switches to the (1-15)s, (15-300)s, or (300-99999)s range without manual intervention.

3. What are the advantages of the imported oil-free vacuum pump?
The imported oil-free vacuum pump requires no lubricating oil during operation and zero lifelong maintenance, avoiding oil mist contamination of the testing system. It also eliminates the need for periodic oiling maintenance, providing more stable and reliable operation.

4. How are test results viewed and printed?
After testing, results are displayed directly on the large color touchscreen. The built-in thermal printer can instantly print test data with high speed, silent operation, and no need for ink cartridges or ribbon replacement.

5. Does the instrument require regular calibration?
The instrument is factory-calibrated. Routine accuracy verification can be performed using standard smoothness calibration plates. If test deviations beyond the allowable range are detected, contact our after-sales service for professional calibration and maintenance.

6. What is the RS232 interface used for?
The RS232 interface (optional) can connect to a computer and, together with dedicated PC software, enable real-time data transmission, storage, statistical analysis, and report generation, facilitating laboratory data management and quality traceability.

After-Sales Service
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Automatic Smoothness Tester comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and smoothness testing method consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.

Smoothness is a critical physical property for evaluating the surface flatness and smoothness of paper and paperboard, directly affecting printability, writing performance, and packaging appearance. The smoother the paper surface, the more uniform the ink transfer during printing and the higher the graphic clarity. Conversely, rough surfaces can lead to dot loss and blurred text. The Bekk method is the internationally accepted standard method for smoothness determination. Its principle is to bring a specimen of defined area into close contact with a high-flatness glass anvil under specified pressure and measure the time required for a given volume of air to pass between them. A longer time indicates a smoother surface. GB/T 456 and ISO 5627 standards define uniform testing conditions. Modern automatic smoothness testers employ high-precision pressure sensors, stepper motor drives, and automatic range switching technologies, replacing traditional manual mechanical structures and significantly improving testing accuracy and operational convenience. This instrument is widely used in quality control at paper mills, incoming inspection at printing and packaging plants, and material property research at quality inspection agencies and research institutions.