GESTER Paper Packaging Testing Instruments is designed in accordance with TAPPI, ISO, ISTA, ect standards, which is widely used in paper and package industries (such as corrugated fiberboard, flexible packaging, lamination, adhesives etc).
The GT-N20 Roughness and Air Permeability Tester is a high-precision laboratory analyzer designed to measure surface roughness and air permeability across a diverse range of technical substrates. Engineered to perform the standardized Bendtsen method, this equipment natively calculates Gurley Porosity equivalents directly from measured flow values. It guarantees full compliance with global standards including ISO 8791, ISO 5636 and DIN 53120.
The GT-N69B sealing tester designed for the quantitative and qualitative evaluation of packaging integrity. Utilizing the Vacuum Water Bath (Bubble Emission) method, this equipment is the industry standard for identifying even the smallest leaks in food, pharmaceutical, and medical packaging. Unlike manual alternatives, the GT-N69B automates the entire testing process—from vacuum pull to pressure maintenance and release—ensuring maximum repeatability and strict compliance with international standards such as ASTM D3078.
Brightness Tester is a specialized printing test machine for the brightness, transparency, fluorescence of toilet paper, paper, paperboard, adhesive sticker and surface of carton.
The GT-N69C Leak and Sealing Tester is a specialized instrument for quantitatively determining the sealing and strength performance of various packaging. It measures sealing strength, expansion pressure, and leakage of bags; the sealing of plastic anti-theft caps and flexible tubes; as well as the compressive, breakage, and torsional strength of caps and packaging materials. The system utilizes a positive pressure test principle with stable mechanical control, offering multiple test modes (rupture, creep, pressure preservation) and customizable ranges (standard 0-600 KPa) and fixtures. It is designed to meet relevant international and industry standards.
GESTER Heat Seal Tester is essential for various industries, including quality inspection, pharmaceuticals, research, packaging, thin film manufacturing, food production, ect.
The GT-N16 MIT Type Paper Folding Endurance Tester is used for determining the folding endurance strength of paper and paperboard using hang type weight method.
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