GSM Round Cutter 100 cm²
Katpot Systems GSM Round Cutter is designed to cut a perfectly circular specimen of 100 cm² (Ø 113 mm) for quick and accurate GSM (g/m²) / grammage measurement of paper, paperboard, fabric, nonwoven, films and laminates. Built for repeatable sample preparation in QC, R&D and production labs.
Advanced Features
- Standard cut area: 100 cm² (exact specimen area for direct GSM conversion).
- Standard sample diameter: 113 mm (industry standard specimen size).
- Multi-blade cutting mechanism (typical 4-blade design) for clean circular cutting and smooth edges.
- Safety locking / secure cutting design for stable operation (recommended for lab use).
- Heavy-duty build suitable for regular QC sample preparation.
Product Importance
- Accurate GSM/Grammage starts with precise specimen area (100 cm²).
- Fast routine QC – cut sample in seconds and get quick results.
- Repeatability improvement – consistent size reduces lab-to-lab variation.
- Works with multiple materials – paper, board, fabric, nonwoven, films, foils, laminates.
- Supports standard test methods used by packaging & textile industries.
Description
Accurate GSM results start with accurate sample cutting. Our GSM Round Cutter produces a consistent sample area of 100 cm², which is exactly 1/100th of a square meter—so the measured weight in grams × 100 gives GSM (g/m²) directly. This ensures repeatability, reduces operator errors, and speeds up routine QA testing.
The cutter is suitable for specimen preparation used in common grammage / mass-per-unit-area standards for paper and textiles, such as ISO 536 (paper & board grammage), TAPPI T 410 (paper/paperboard mass per unit area), and ASTM D3776 (fabric mass per unit area).
Standards / Test Methods
- ISO 536 – Paper & board: Determination of grammage
- TAPPI T 410 – Paper & paperboard: mass per unit area / grammage
- ASTM D3776/D3776M – Fabric mass per unit area (GSM)
- (Optional for textile clients) ISO 3801 – Woven fabrics: mass per unit length & area





