In the short-span compression test the compressive strength of paper is determined to\u00a0ISO 9895, DIN 54518 or TAPPI T 826.<\/strong><\/p>\n Port\u0101ls\u00a0Short Span Compression Tester<\/strong>\u00a0is designed to assess the\u00a0compressive strength<\/strong>\u00a0of paper and paperboard materials, especially those used in corrugated packaging, containerboard, and linerboard. With an ultra-short test span of just 0.7 mm, this method provides accurate insight into the\u00a0internal fiber bonding<\/strong>\u00a0un\u00a0structural strength<\/strong>\u00a0of paper products. It’s an essential tool in\u00a0paper mills<\/strong>,\u00a0packaging quality control<\/strong>,\u00a0research labs<\/strong>, un\u00a0production lines<\/strong>, supporting product development, raw material evaluation, and quality assurance.<\/p>\n <\/p>\n The short span compression tester is a paper and paperboard short span compression strength tester designed and developed by our company in accordance with the latest national standard GB\/T 2679.10. It is suitable for the production of paper and paperboard for cartons and boxes. Short span compression refers to the maximum compression force per unit width when the paper and paperboard sample begins to break, expressed in kN\/m; the short span compression index refers to the short span compression strength divided by the quantitative, expressed in Nm\/g. The test principle is: place a 15mm wide sample between two clamps with a spacing of 0.7mm and compress until the sample is broken, measure the maximum short span compression force, and calculate the short span compression strength. Short span compression is the latest international method for evaluating the strength of base paper, and is gradually replacing the ring compression strength RCT, using short span compression force to predict the compression strength of cartons.<\/p>\n <\/p>\n The Short Span Compression Tester is a\u00a0precision mechanical testing system<\/strong>\u00a0equipped with\u00a0dual motorized clamps<\/strong>\u00a0that apply compression on the sample over a minimal span. Controlled by a\u00a0PLC system<\/strong>\u00a0and operated through a\u00a0touchscreen interface<\/strong>, the tester automates the clamping, compression, measurement, and data output processes. The instrument is built with\u00a0robust mechanics<\/strong>,\u00a0high-accuracy sensors<\/strong>, un\u00a0safety features<\/strong>\u00a0for dependable and repeatable testing.<\/p>\n Short Test Span:<\/strong>\u00a0Measures compressive strength over a 0.7 mm span to reduce buckling influence<\/p>\n<\/li>\n Wide Measurement Range:<\/strong>\u00a0Suitable for samples with a basis weight from 100 to 400 g\/m\u00b2<\/p>\n<\/li>\n High Clamping Force:<\/strong>\u00a02300 \u00b1 500 N ensures consistent grip and alignment<\/p>\n<\/li>\n Automated Control:<\/strong>\u00a0PLC-based operation with HMI for simplified testing workflows<\/p>\n<\/li>\n Real-Time Results:<\/strong>\u00a0Displays force and strength in N, N\/m, or N\u00b7m\/g<\/p>\n<\/li>\n Multiple Output Options:<\/strong>\u00a0Built-in micro-printer and optional data interfaces (RS-232\/USB)<\/p>\n<\/li>\n Safety Protections:<\/strong>\u00a0Overload detection and emergency stop function included<\/p>\n<\/li>\n<\/ul>\n <\/p>\n Image Title: Short Span Compression Tester for Paper<\/p>\n The Short Span Compression Test (SCT) measures the\u00a0maximum compressive force<\/strong>\u00a0that a paper or board sample can withstand before failure when compressed across a short 0.7 mm span. This minimal span eliminates the risk of premature buckling, offering a true evaluation of the material\u2019s\u00a0internal bonding and structural integrity<\/strong>. The force at failure is recorded and used to calculate compressive strength.<\/p>\n Parauga sagatavo\u0161ana:<\/strong> Clamping:<\/strong> Compression Test:<\/strong> Result Display:<\/strong> Repeat for Average:<\/strong> <\/p>\n1. Application of Short Span Compression Tester<\/h2>\n
2. System Description of Short Span Compression Tester<\/h2>\n
![\"SCT-01](\"https:\/\/image.chukouplus.com\/upload\/C_4083\/file\/20241231\/be964a2a567dd64545a03d5f0de0af3f.png?1\" "\\"SCT-01")
<\/a><\/p>\n3. Technical Features<\/h2>\n
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![\"SCT-01](\"https:\/\/www.materialstests.com\/wp-content\/uploads\/2025\/12\/SCT-01-Short-Span-Compression-Tester11-300x300.jpg\")
<\/p>\n4. Test Principle<\/h2>\n
5. Test Procedures<\/h2>\n
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Cut paperboard strips to standardized dimensions (typically 15 mm wide) with clean, even edges.<\/p>\n<\/li>\n
Place the sample between the upper and lower clamps, automatically aligned for parallel contact.<\/p>\n<\/li>\n
The clamps move together at a fixed speed (3 \u00b1 0.1 mm\/min), compressing the sample until it breaks.<\/p>\n<\/li>\n
The maximum force is measured and displayed automatically. The result may be printed or exported.<\/p>\n<\/li>\n
Perform tests in both machine and cross-machine directions to calculate average strength values.<\/p>\n<\/li>\n<\/ul>\n6. Specifications<\/h2>\n
![\"SCT-01](\"https:\/\/image.chukouplus.com\/upload\/C_4083\/file\/20240222\/27e953cb0f80291dd9c5ea583ae534bc.png?1\" "\\"SCT-01")
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