Product Introduction 
The ring crush sampler operates on a precision shear-punching principle. Through an integrated cast frame and progressive shear blade structure, it precisely cuts paper or paperboard into rectangular specimens meeting the standard size requirements for RCT and CMT testing. The cutting length of 152±0.2mm and width of 12.7±0.025mm strictly satisfy the standard specimen dimensions for ring crush and flat crush tests. The progressive shear blade design makes cutting smooth and effortless, producing clean, burr-free edges that ensure accurate and repeatable test data. The device is manually operated, requires no power supply, and is suitable for frequent use in both laboratory and production floor environments.

Key Features 
Standard Size Precision Cutting Cutting length 152±0.2mm, width 12.7±0.025mm, parallelism <0.015mm, fully meeting RCT and CMT test standard requirements.
Integrated Cast Frame Integrated cast structure with a large base ensures stability during cutting and maintains long-term specimen dimension accuracy.
Progressive Shear Blade Structure Unique shear blade design enables effortless cutting, extended blade life, and burr-free specimen edges with accurate dimensions.
Wide Thickness Adaptability Cutting thickness range of 0.1–1.0mm, suitable for ring crush specimen preparation of various papers and paperboards.
Simple and Efficient Operation Manual operation with a simple and intuitive structure requires no power supply; rapid sampling suitable for high-frequency laboratory and production use.
Durable and Reliable Quality Sampler weight of approximately 20kg with a robust structure and durable critical components ensures long-term dimensional stability.
Dedicated Application Purpose Designed specifically for Ring Crush Test (RCT) and Concora Medium Test (CMT), as an essential tool for standard specimen preparation.
Simple Maintenance, Low Cost Purely mechanical structure with no electronic components; keep clean daily, and the blade can be used for a long time without frequent replacement.

Main Technical Specifications 

FAQ
1. Which tests require the specimens prepared by this sampler?
It is specifically designed for cutting standard specimens for the Ring Crush Test (RCT) of paper and paperboard, and the Concora Medium Test (CMT) of corrugating medium.
2. What thickness of paperboard can the sampler cut?
The cutting thickness range is 0.1–1.0mm, suitable for conventional paper and paperboard. Materials exceeding this range are not recommended to avoid affecting cutting accuracy or damaging the blade.
3. What are the advantages of the progressive shear blade structure?
The progressive shear blade distributes force evenly during cutting, making the process effortless, reducing blade wear, extending service life, and ensuring burr-free specimen edges with accurate dimensions.
4. How is long-term cutting precision maintained?
The integrated cast frame combined with high-precision blades ensures stability of cutting dimensions. In daily use, avoid cutting excessively hard or thick materials, and periodically inspect blade condition to maintain precision over time.

5. Does the device require special maintenance?
The purely mechanical structure requires no power supply or special maintenance. Clean residual paper debris after use and keep the blade and body clean. Avoid impacting the blade against hard objects.
6. Do the sampler dimensions comply with standard specifications?
The cutting length of 152±0.2mm and width of 12.7±0.025mm are the standard specimen dimensions specified for ring crush and flat crush tests, and this sampler fully meets those requirements.

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 Ring Crush Sampler comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and sampling 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.