Crush Tester & ECT & RCT & FCT & PAT & CMT & CCT Testing
Crush Tester
ECT & RCT & FCT & PAT & CMT & CCT
About Us
Crush Tester
In the competitive world of packaging, ensuring the strength and durability of materials like corrugated board and paperboard is non-negotiable, compression strength is one of the most critical performance indicators. Whether evaluating corrugated fiberboard for shipping containers or paperboard for packaging components, crush tester instruments provide vital insights into material strength and reliability. Among the key testing methods are edge crush tests (ECT), ring crush tests (RCT), and flat crush tests (FCT)—each governed by specific international standards such as ISO 3037, TAPPI T811, ISO 3035, and JIS Z 0402.

YSD-01 Crush Tester
What Is a Crush Tester?
A crush tester is a precision instrument designed to assess the compressive strength of paper, paperboard, and corrugated board under various configurations. This includes testing materials for edgewise compression, ring compression, flat compression, and more. These tests simulate real-world conditions that packaging may face during handling, stacking, and transport.
Accurate crush resistance data supports manufacturers in:
- Validating packaging strength.
- Optimizing raw material use.
- Meeting regulatory and industry standards.
- Reducing product damage and material waste.
The Cell Instruments YSD-01 Crush Tester supports multiple test modes including ECT, RCT, FCT, PAT, CMT, and CCT, making it a comprehensive solution for packaging performance evaluation.
Key Types for Crush Tester
Different testing machines target specific aspects of corrugated board performance:
Often referred to as an edge crush test machine, the ECT measures the edgewise compressive strength perpendicular to flute direction on fiberboard.
– Edge Crush Tester (ECT)
Flat crush tester evaluates resistance to crushing on the flat surface of single-faced or double-faced corrugated board.
– Flat Crush Tester (FCT)
The ring crush tester determines edgewise compressive strength of paper and paperboard in ring form.
– Ring Crush Tester (RCT)
Flat Crush Tester and FCT Explained
Flat Crush Tester and FCT Testing
The flat crush test (FCT) determines the resistance of the fluted medium in corrugated fiberboard when subjected to force perpendicular to its surface. This test helps ensure that corrugated structures maintain rigidity and cushioning during transportation.
Flat Crush Test Standards
01
ISO 3035
Corrugated fibreboard — Determination of flat crush resistance
02
TAPPI T825
Ring crush of paperboard (rigid support method), Test Method TAPPI/ANSI T 822 om-22
03
GB/T 22874
Single-faced and single-wall corrugated fibreboard – Determination of flat crush resistance
Accurate FCT results help in evaluating the durability of single-faced and single-wall boards and identifying structural weaknesses.
Recommended Instrument: The YSD-01 includes robust FCT functionality, supporting high-pressure application and precise platen alignment to meet ISO 3035 and TAPPI T825 guidelines.
Ring Crush Tester and RCT Explained
Ring Crush Tester and RCT Testing
The ring crush test (RCT) measures the edgewise compressive strength of paper and paperboard formed into a ring shape. Unlike ECT, which evaluates the entire corrugated structure, RCT assesses the performance of the base material. This test is essential for predicting the final board’s edge crush strength.
Ring Crush Test Standards
01
ISO 12192
Paper and board — Determination of compressive strength — Ring crush method
02
TAPPI T822
Ring crush of paperboard (rigid support method)
03
GB/T 2679.8
Paper and board — Determination of compressive strength (Ring crush method)
To perform this test accurately, samples must be prepared using a specific fixture that forms them into a ring before compression.
Recommended Instrument: The YSD-01 includes dedicated RCT fixtures and adheres to ISO 12192 and TAPPI T822 protocols, providing reliable data for fiberboard manufacturers and converters.
Ring Crush Tester and RCT Explained
Ring Crush Tester and RCT Testing
The ring crush test (RCT) measures the edgewise compressive strength of paper and paperboard formed into a ring shape. Unlike ECT, which evaluates the entire corrugated structure, RCT assesses the performance of the base material. This test is essential for predicting the final board’s edge crush strength.
Ring Crush Test Standards
01
ISO 12192
Paper and board — Determination of compressive strength — Ring crush method
02
TAPPI T822
Ring crush of paperboard (rigid support method)
03
GB/T 2679.8
Paper and board — Determination of compressive strength (Ring crush method)
To perform this test accurately, samples must be prepared using a specific fixture that forms them into a ring before compression.
Recommended Instrument: The YSD-01 includes dedicated RCT fixtures and adheres to ISO 12192 and TAPPI T822 protocols, providing reliable data for fiberboard manufacturers and converters.
Oher Crush Testing Method
Additional Testing Modes on Crush Tester
In addition to ECT, RCT, and FCT, advanced crush testers like the YSD-01 can perform other essential tests:
Pin Adhesion Test (PAT)
· Measures bond strength between fluted medium and linerboard.
· Follows TAPPI T821 and JIS Z 0402.
Corrugating Medium Test (CMT)
· Evaluates medium’s crush resistance after laboratory fluting.
· Uses ISO 7263-1, TAPPI T809 , and QB/T 1061.
Corrugated Crush Test (CCT)
· Assesses edge crush resistance after laboratory fluting.
· Regulated by ISO 16945 and TAPPI T843.
YSD-01 Crush Tester
Technical Specifications
Parameter | Specification |
Test area | (10±0.05) cm² |
Measuring range | (1-9999) S, (1-15)S, (15~300) S, (300~9999) S, three range switch |
Volume | Big Vacuum 380±1ml; Small Vacuum (38±1) ml |
Vacuum range | I gear 50.66kPa -> 29.33kPa |
II gear 50.66kPa -> 48kPa | |
III gear:50.66kPa -> 48kPa | |
Test Pressure | (100±2) kPa (Automatic pressure) |
Dimension | 380x360x465 mm |
Power | AC 220V 50Hz |
The YSD-01 Crush Tester from Cell Instruments stands out for its:
- Multi-mode capability (RCT, ECT, FCT, PAT, CMT, CCT)
- 7-inch touchscreen HMI for intuitive control
- High-precision mechanics ensuring <±1% accuracy
- Built-in printer for easy report generation
- Conformance to international standards (ISO, TAPPI, JIS)
Whether you are a quality engineer, packaging developer, or research analyst, YSD-01 offers the flexibility and reliability required for rigorous crush resistance testing.
YSD-01 Crush Tester
Why YSD-01 Is the Right Fit
Crush tester is indispensable for paper and packaging manufacturers aiming to ensure product durability and meet industry regulations. Tests like ECT, RCT, and FCT form the backbone of board performance evaluation, governed by strict standards such as ISO 3037, TAPPI T811, ISO 3035, and more. With the YSD-01 Crush Tester from Cell Instruments, you gain access to a complete testing solution that is accurate, versatile, and compliant—enhancing both quality control and customer satisfaction.
– Cell Instruments
Frequently Asked Questions about Crush Tester
1. What does an edge crush test measure?
The edge crush test (ECT) measures the edgewise compressive strength of corrugated board to assess its ability to withstand vertical stacking forces.
2. What’s the difference between ECT and RCT?
ECT tests the entire board, while RCT focuses on the compressive strength of paper or board shaped into a ring, providing insight into the base material’s performance.
3. Which standards govern crush testing?
Key standards include ISO 3037, ISO 3035, ISO 7263-1, TAPPI T811, T822, T825, and JIS Z 0402, depending on the test type (ECT, RCT, FCT, etc.).
4. Why choose the YSD-01 Crush Tester?
It offers multi-functionality, high accuracy, intuitive operation, and full compliance with global standards—ideal for comprehensive packaging quality testing.


Get in touch
No. 5577 Gongyebei Rd, Licheng, Jinan, 250109, Shandong, P.R.C.
marketing@celtec.cn
+86 185 6001 3985