Manual Paper GSM Tester

The Quadrant Scale, also known as the GSM Scale, is a precise instrument designed to measure the Basis Weight (Grammage) of paper and other sheet materials by weighing small test samples of specified dimensions. This tool is essential in the paper, packaging, textile, leather, and rubber industries, where GSM (grams per square meter) is a critical factor for material quality and suitability.

The scale's pendulum design ensures accurate and reliable measurements, while its stainless steel body and corrosion-resistant components maintain its accuracy over time. Its calibration relies on precision dead weights, ensuring consistent performance as long as the pendulum remains free from corrosion, distortion, or other external factors.

Salient Features

• Sturdy Pendulum Design: Provides outstanding stability and reliability with a low center of gravity.
• Rigid Tubular Pendulum: Equipped with hardened bearings for smooth and precise needle movement.
• Chromium-Plated Leveling Screws: Ensures a stable base and accurate readings.
• Stainless Steel Templates: Durable and resistant to corrosion, maintaining sample precision.
• Double Graduation Quadrant Scale: Displays direct weight in GSM for ease of use.
• Manual Operation: Allows for intuitive handling and reliable measurements without external power sources.

Specifications and Process

1. Sample Dimensions: Typically uses 20 x 25 mm templates for accurate GSM calculation.
2. Graduation Range: Available in 0–250 GSM (commonly used) and 0–500 GSM (suitable for thicker materials like Kraft paper).
3. Material Construction:
   • Body: Stainless steel for durability.
   • Base: Steel wire cast tripod with chromium plating.
4. Calibration: Performed using precision dead weights to ensure accuracy.
5. Accuracy: Maintained by ensuring the pendulum remains in its original form and free from corrosion or distortion.
6. Operation:
   • A paper sample cut using the template is placed in the scale’s hanger.
   • The pendulum is released, and its movement stabilizes to provide a direct GSM reading.

Applications

The Quadrant Scale is ideal for measuring GSM in:

• Paper Industry: Writing, printing, Kraft paper, and specialty paper.
• Packaging Industry: Corrugated materials, cartons, and flexible packaging.
• Textile and Leather Industry: Fabric weight measurement.
• Rubber Industry: Sheet material analysis.

Benefits

• Precision Measurement: Offers direct GSM readings with double-graduation scales for simplicity.
• Versatile Usage: Suitable for various industries, from paper to textiles and rubber.
• Durability: High-quality materials ensure long-term performance.
• Cost-Effective: Manual operation minimizes maintenance and running costs.