GP-21 Sample Cutter – Pneumatic

The GP-21 is a sample preparation tool to cut materials for R&D and Quality Control materials testing including tensile, ring crush test, concora medium test, corrugated crush test, bending resistance and tearing resistance. 


The development and production of environment friendly papers and boards, with high performance and low cost, require constant R&D (research and development) and Q.C. (quality control).

The effective preparation of representative test pieces is a key point in paper and board physical tests that might not be forgotten by users since repeatability and reproducibility of test results are directly related to the quality and accuracy of test pieces prepared according to technical standards.

The GP-21 associates accuracy, speed and repeatability with safety and comfort while preparing test pieces for a variety of physical tests listed below.

The double pneumatic actuation and the external cover of light and high resistance material prevent the access of the user to the knives and internal mechanisms, ensuring total conformity to safety rules.

The GP-21 features iron-cast frame, die and punch made of tempered alloy steel, feeding table, guide for cut test pieces and pneumatic system comprising piston and two actuating buttons.

Air supply:  6 bar, instrument quality, 0.1 m³/h

Dimensions (W x L x H):  400 x 400 x 280 mm

Weight:  20 kg

NOTE: Custom cutting sizes available under request.

Type of Test        Size of Sample       Tolerances       Applicable Standards
Tensile Tests       15, 25, 25.4 or 50 x 300mm     ± 0.1 mm           ISO1924/2, TAPPI T494     
RCT – Ring Crush Tests   12.7 x 152.4 mm .5 x 6 in   ± 0.1 mm   ISO 12192, TAPPI T822
CMT – Concora Medium Test    12.7 x 152.4 mm .5 x 6 in   ± 0.1 mm   ISO 7263, TAPPI T809
CCT – Corrugated Crush Test     12.7 x 152.4 mm .5 x 6 in   ± 0.1 mm   TAPPI T824
Tests of Bending Resistance   38.1 x 70 mm   ± 0.1 mm   ISO 2493, TAPPI T489
Tests of Tearing Resistance   63 x 70 mm   ± 0.1 mm   ISO 1974, TAPPI T414

Información adicional


Paperboard, Corrugated


GP-21 Sample Cutter