Product Introduction
The Digital Paper Bowl compression tester operates on a vertical compression loading principle. The test specimen is placed in the center of the lower platen. A high-precision servo drive system drives the upper platen downward at a set constant speed, applying an axial compressive load to the specimen. A high-precision load cell captures real-time force signals, while a displacement sensor accurately records platen movement distance. The 7-inch touchscreen control system displays a real-time force-displacement curve and automatically identifies and records the maximum force value as the compression strength test result. The instrument comes with dedicated testing accessories for paper bowls, edge protectors, and tubes to meet the testing needs of specimens of various shapes and specifications.

Key Features 
Multi-Function Testing Accessories Standard configuration includes testing functions and accessories for paper bowls, edge protectors, and tubes—one instrument for multiple testing purposes.
High-Precision Force Measurement Measuring range ≤5000 N with load cell accuracy of 0.01 N, precisely capturing minute force variations during the compression process.
Precise Displacement Control Displacement display accuracy of 0.1 mm, test speed adjustable from 1 to 60 mm/min, ensuring test condition consistency and result repeatability.
7-Inch Touchscreen Intelligent Control Equipped with a 7-inch touchscreen control system displaying real-time force-displacement curves for intuitive operation and clear data visualization.
Four-Column Stable Structure Four-column fixed structure with linear bearing guidance ensures parallelism of the upper and lower platens for uniform force application without eccentric loading.
Large Compression Space Platen size of 300×300 mm and compression space of 350 mm accommodate paper bowls, cups, and tubes of various specifications.
Multi-Standard Compliance Compliant with GB/T 27591-2011 and GB/T 4857.4 standards, meeting type inspection and factory inspection requirements.
Safe and Convenient Operation Full-speed return for improved testing efficiency; well-designed structure for easy daily maintenance.

Main Technical Specifications 

FAQ 
1. What types of products can the instrument test?
It can test the compressive strength of various paper bowls, paper cups, paper edge protectors, paper tubes, paper cans, and other paper containers and tubular materials by simply changing the corresponding testing accessories.

2. How should the test speed be selected?
The test speed is adjustable within a 1-60 mm/min range. The specific speed should refer to GB/T 27591-2011 or GB/T 4857.4 standard specifications, or can be set based on product characteristics and testing requirements.

3. How is the maximum compressive force value determined and recorded?
The instrument captures real-time force data through a high-precision load cell. The 7-inch touchscreen automatically plots a force-displacement curve and identifies and locks the maximum force value. Test results are displayed intuitively and support data storage.

4. Are the platen size and compression space sufficient for large-size product testing?
The platen size of 300×300 mm and compression space of 350 mm can meet the testing needs of most paper bowl, cup, and tube sizes on the market. For oversized products, custom solutions are available upon consultation with our company.

5. Does the instrument require regular calibration?
Periodic force calibration using standard weights is recommended to ensure load cell accuracy remains within 0.01 N. Displacement accuracy can be verified using standard gauge blocks. We provide calibration guidance and after-sales support.

6. What are the advantages of the four-column structure compared to a two-column one?
The four-column fixed structure with linear bearing guidance better ensures the parallelism of the upper and lower platens, allowing more uniform force distribution on the specimen, avoiding testing errors caused by eccentric loading, and achieving higher test result repeatability.

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 Digital paper bowl compression 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 compression strength 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.