Discover the PNSHAR PN-ST500AF Bending Stiffness Tester with PN-STC70 Sample Cutter: Precision Evaluation for Paper and Cardboard Excellence

In the exacting field of laboratory research and quality control, precise measurement of bending stiffness is crucial for assessing the performance of paper, cardboard, and non-metallic materials. The PNSHAR PN-ST500AF Bending Stiffness Tester combined with the PN-STC70 Sample Cutter from Hangzhou PNSHAR Technology Co., Ltd. provides an advanced, automated system for accurate stiffness testing. Designed for thicknesses under 2mm, this combo enables lab researchers and equipment purchasers to conduct reliable evaluations, optimizing material selection, packaging design, and cost efficiency while adhering to international standards.

Key Benefits: Boost Accuracy, Automation, and Insights in Your Lab

This integrated testing solution tackles common issues in stiffness assessment, such as manual errors, inconsistent sample preparation, and limited data analysis that can lead to suboptimal material choices and increased production costs. By offering high-precision measurements with smart automation and connectivity, it enhances lab efficiency, ensures repeatable results, and delivers comprehensive data for informed decisions.

• Outstanding Precision and Resolution: With a resolution of 0.1 mN and indication error of ±1%, it provides highly accurate stiffness readings, addressing the challenge of variable results that affect research reliability and material quality evaluations.
• Flexible Testing Parameters: Adjustable bend angles from 1° to 90° and test times from 3s to 30s, plus three bend lengths (10mm, 25mm, 50mm), allow customized testing for diverse applications, solving the pain of rigid equipment that limits versatility in lab protocols.
• Advanced Automation Features: Motorized angle control, automatic zeroing, and high-speed return (1°/s to 12°/s) minimize human intervention, reducing setup time and errors while improving throughput in busy research environments.
• Smart Connectivity and Data Management: WIFI IoT integration for cloud storage and QMS system compatibility enables seamless data saving, querying, statistical analysis (averages, deviations), and reporting, alleviating fragmented data handling and facilitating collaborative quality control.
• User-Friendly Interface: A 5-inch color touch screen displays real-time stiffness curves, with built-in thermal printing for immediate results, tackling the complexity of outdated testers that require extensive operator training.
• Standards Compliance for Assurance: Conforms to GB/T 22364, GB/T 2679.3, ISO 2493, ISO 5628 for the tester and QB/T 1671 for the cutter, ensuring globally recognized outcomes and reducing compliance risks in procurement and audits.

Whether you're a researcher optimizing packaging materials or a purchaser seeking reliable tools, this system transforms stiffness testing into a precise, efficient process, helping balance material strength, formability, and costs for superior results.

How It Solves Customer Pain Points

Lab professionals often deal with stiffness testers that require manual alignments and fixed parameters, leading to inconsistencies, prolonged testing, and difficulties in sample preparation—especially for precise cuts needed in bending evaluations. The PN-ST500AF resolves this with its automatic zeroing and motorized controls, ensuring repeatable measurements across a wide range (20–10,000 mN or 1–500 mN·m) without operator bias. Paired with the PN-STC70 cutter, which delivers exact samples at 70×38mm (±0.2mm) for stiffness and 38×36mm (±0.3mm) for crease tests on materials under 1mm thick, it eliminates irregular samples that skew results. In variable lab settings, its robust design operates reliably at 20±10°C and <85% humidity, addressing environmental impacts on accuracy. Cloud integration prevents data loss and manual calculations, streamlining workflows and mitigating rework in quality assurance, ultimately saving time and resources for high-stakes research.

Technical Specifications: Engineered for Precision and Versatility

The PN-ST500AF emphasizes precision with a measuring range of 20–10,000 mN (equivalent to 1–500 mN·m), resolution of 0.1 mN, indication error of ±1%, and variability ≤1%, capturing subtle bending characteristics in paper and cardboard. Bend lengths are selectable at 50±0.5mm, 25±0.5mm, or 10±0.5mm, with angles adjustable from 1° to 90° and test durations from 3s to 30s for tailored protocols. Powered by AC 100–240V at 2A and 50/60Hz, it features a 5-inch color touch screen for real-time curve visualization, a thermal printer for outputs, and connectivity via RS232 (standard) or USB (optional), plus WIFI for cloud-based QMS integration. Compact dimensions of 320×300×300mm and a net weight of about 16kg facilitate easy lab placement in controlled environments (20±10°C, <85% humidity).

Complementing the tester, the PN-STC70 Sample Cutter ensures accurate preparation with stiffness sample sizes of 70×(38±0.2)mm and crease stiffness sizes of (38±0.3)×36mm, handling thicknesses under 1mm. Its sturdy build measures 350×100×130mm with a net weight of approximately 7.2kg, operating in temperatures of 20–40°C and <85% humidity, making it an essential tool for consistent sampling in papermaking, packaging, and research applications.

Ready to enhance your bending stiffness testing with superior precision? Contact us today to learn how the PNSHAR PN-ST500AF Bending Stiffness Tester with PN-STC70 Sample Cutter can elevate your laboratory research and quality control.