The optional jigs for Wewon’s crush tester: Optional configuration: parallel sampler; ring pressure sampler, ring pressure clamp, flat pressing fixture, gluing strength clamp. This machine is equipped with various fixture accessories to test the ring compressive strength of the base paper, the flat/side compressive strength of the cardboard, and the bonding strength, so that the paper manufacturer can control the production cost and improve the product quality. Ring crush tester from Wewon Tech will comply with the test standard such as TAPPI T472, TAPPI T808, TAPPI T810, TAPPI T811, TAPPI T818, JIS P8126, GB/T 2679.6, GB/T 2679.8, GB/T 2679.17, GB/T 6546, GB/T 6544, GB/T 6548
| Equipment Capacity | 100kg, 200kg, 300kg (Optional) |
| Test Resolution | 1/10,000 |
| Precision Accuracy | ≤ ±0.5% |
| Display Method | Digital LED Display |
| Pressure Plate | 100cm2 or depending on the diameter of the flat pressure sample |
| Compressed Spacing | 80 mm |
| Platen Parallelism | ± 0.05 mm |
| Ring Compression Specimen | 152×12.7 mm |
| Edge Pressure Sample | 25×100 mm |
| Test Speed | 12.5 ±2.5mm/min |
| Horsepower | 1/8 HP |
| Machine Dimension | (L×W×H)430×400×600mm |
| Equipment Weight | 40 KGS |
| Power Supply | 1∮, AC220V, 1.5A |
TAPPI-T 822 Ring Crush of Paperboard (Rigid Support Method): Ring Crush Test (RCT) for measuring the resistance of paper and paperboard to edgewise compression. A special jig is used during the test to hold the test piece in a ring form. The ring crush test correlates with edgewise compression strength of paperboard. This method is intended for paperboard between 0.28 mm (0.011 in.) and 0.61 mm (0.024 in.) thick. It may be used with less reliability for paperboard as thin as 0.18 mm (0.007 in.) and as thick as 0.76 mm (0.030 inches)
| ● | Equipped with a ring pressure test center plate and a special ring pressure sampler for the cardboard ring pressure strength test. | RCT |
| ● | Equipped with edge pressure (adhesive) sample sampler and auxiliary guide block for corrugated board edge compression strength test. | ECT |
| ● | Equipped with a peel strength test frame for corrugated cardboard adhesion (peel) strength test. | PAT |
| ● | Equipped with a flat pressure sample sampler to test the flat pressure strength of corrugated cardboard. | FCT |
| ● | The machine is equipped with flute meter and auxiliary equipment for laboratory flute test. | CCT |
| ● | The ring crush tester is equipped with flute meter and auxiliary equipment for laboratory flute test. | CMT |
| ● | If you do a thickness test, You need to be equipped with a thickness test pad. We accept custom designs. | MTT |
Test Philosophy for ECT Edge Crush Test or Edgewise Crush Test: The paperboard ring crush tester is used to cut 100mm×25 mm corrugated sample, Put it upright between the upper and lower pressing plates of the compression instrument for a crush test until it is crushed. ECT value can be expressed as force divided by sample length. 
Various Crush Tests and International Test Standars for Paper Materials: Concora Crush Testing (CCT) TAPPI T824｜Concora Medium Testing (CMT) BS EN ISO 7263｜Edgewise Compression Testing (ECT) BS EN ISO 3037, ISO 3037｜Flat Crush Testing (FCT) BS EN 23035, ISO 3035｜Ring Crush Testing ISO 12192｜Short Span Compression Testing (SCT) BS 7325, ISO 9895, TAPPI T826.
Caution should be used when testing linerboard less or greater than the specified thickness as the results may be less reliable. For papers thinner than 0.28 mm (0.011 in.), test values may result from a combination of both buckling failure and pure compression. For papers thicker than specified, strain within the sample arising from bending the specimens into a cylinder may impact test results .
NOTE: Content of TAPPI-T 822 Ring Crush of Paperboard (Rigid Support Method) comes from source page: https://amlinstruments.co.uk/instruments/crush-tester-ect-rct-fct-cct-pat-cmt/
Various Crush Tests and International Test Standars for Paper Materials: Concora Crush Testing (CCT) TAPPI T824｜Concora Medium Testing (CMT) BS EN ISO 7263｜Edgewise Compression Testing (ECT) BS EN ISO 3037, ISO 3037｜Flat Crush Testing (FCT) BS EN 23035, ISO 3035｜Ring Crush Testing ISO 12192｜Short Span Compression Testing (SCT) BS 7325, ISO 9895, TAPPI T826.
Caution should be used when testing linerboard less or greater than the specified thickness as the results may be less reliable. For papers thinner than 0.28 mm (0.011 in.), test values may result from a combination of both buckling failure and pure compression. For papers thicker than specified, strain within the sample arising from bending the specimens into a cylinder may impact test results .
NOTE: Content of TAPPI-T 822 Ring Crush of Paperboard (Rigid Support Method) comes from source page: https://amlinstruments.co.uk/instruments/crush-tester-ect-rct-fct-cct-pat-cmt/
| ● | ECT Edge Crush Test or Edgewise Crush Test: ISO 3037, ISO 13821, DIN 53149, TAPPI T 823, TAPPI T 838, TAPPI T 811, TAPPI T 839, SCAN P33, FEFCO No 8, APPITA / AS 1301.444S |
| ● | RCT Ring Crush Test: ISO 12192, DIN 53134, SCAN P34, TAPPI T 822, APPITA / AS 1301.407S |
| ● | FCT Flat Crush Test: EN 23035, ISO 3035, SCAN P32, TAPPI T 825, FEFCO No. 6, PPITA / AS 1301.429S |
| ● | CCT Concora Crush Test or Corrugated Crush Test: TAPPI T 843, SCAN P42 |
| ● | PAT Pin adhesion Test: TAPPI T 821, FEFCO NO 11, APPITA/AS 1301.430S |
| ● | CMT Corrugating Medium Test: ISO 7263, TAPPI T809, DIN 53134, SCAN P27, APPITA / AS 1301.434S |