Product Introduction 
The Paper and Board Thickness Tester operates on the contact measurement principle: under a specified measuring pressure and area, the distance between the two parallel measuring surfaces—the anvil and the pressure foot—is measured by a precision dial indicator, representing the single-sheet thickness of the paper or board. The purely mechanical structure without complex electronics ensures excellent long-term stability. By switching between the two standard pressures (100 kPa/50 kPa), it accommodates different standard requirements from regular paper to soft tissue. The reading is taken directly from the high-precision dial indicator, eliminating errors from electronic drift. It is the classic standard instrument for thickness and apparent density determination in paper laboratories.

Key Features 
Dual Standard Measuring Pressures Provides 100 kPa and 50 kPa as standard, meeting the pressure requirements of ISO 534 and GB/T 451.3 for different paper grades, including soft tissue.
High-Precision Dial Indicator Dial indicator with 0.01 mm resolution, indication deviation ±2.5 μm, and repeatability 2.5 μm, delivering accurate and reliable measurement data compliant with international standards.
Wide Measuring Range Range of 0–18 mm covers the thickness measurement needs from ultra-thin paper to thick paperboard and board.
Standard Measuring Area Measuring area of 200 mm² strictly follows the specified anvil dimensions in relevant standards, ensuring normative and comparable test results.
Compact and Lightweight Structure Overall dimensions of 80×120×120 mm and weight of only 2.5 kg save valuable benchtop space and are easy to move and store.
All-Mechanical Reliable Design Purely mechanical structure requires no power supply, has no risk of electronic failure, and offers excellent long-term stability with minimal maintenance cost.
Simple and Intuitive Operation Manual operation with direct dial gauge reading; no warm-up or complex setup required, enabling even beginners to use it immediately.
Multi-Standard Compliance Complies with ISO 534, ISO 438, GB/T 451.3, GB/T 1938, and other standards, suitable for quality inspection, R&D, and teaching.

Main Technical Specifications / 主要技术参数

FAQ 
1. What types of materials can be measured with this thickness tester?
It is primarily designed for thickness measurement of flat sheet specimens, including ordinary paper, paperboard, single-wall corrugated board plies, and soft tissue. It is not suitable for rough or highly textured surfaces.

2. How to choose between the 100 kPa and 50 kPa pressures?
100 kPa is the standard measuring pressure for most paper and paperboard according to ISO 534 and GB/T 451.3. 50 kPa is used for soft tissue paper as specified in GB/T 1938. Select the pressure based on the material type and the standard you are following.

3. How to calibrate and verify accuracy?
The instrument is factory-calibrated. Daily verification can be performed using standard thickness gauge blocks. Compare the dial indicator reading with the gauge block's nominal value. If deviation is found, adjust the dial indicator's zero point or contact our after-sales service for professional recalibration.

4. What anvil size corresponds to the 200 mm² measuring area?
200 mm² is the standard measuring area specified in the standards, corresponding to a circular anvil diameter of approximately 16 mm. This size is widely used in ISO and GB standards and is suitable for most paper and board specimens.

5. Does the mechanical structure require lubrication maintenance?
The mechanical lifting mechanism is lubricated at the factory and generally does not need frequent re-oiling. If lifting movement becomes stiff after prolonged use, apply a small amount of light lubricating oil to the guide rod. Keeping the measuring surfaces clean is the main daily maintenance task.

6. Can it measure the total thickness of corrugated board?
It can measure the thickness of individual plies of corrugated board but is not suitable for directly measuring the total caliper (including flute height) of combined board, because the small measuring area cannot cover an entire flute pitch. For total corrugated board thickness, a specialized thickness gauge with a larger anvil is recommended.

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 Paper and Board Thickness 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 thickness 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.