Direct Answer: The Slide Angle Tester (Coefficient of Static Friction Tester) determines the angle at which materials begin to slide, per ASTM and TAPPI methods, using a precision sliding plane.

What is the Slide Angle Tester?

Also known as the Coefficient of Static Friction Tester, this instrument measures the slide angle of materials to determine their coefficient of static friction. It features a precision sliding plane that moves at a constant rate until the test specimen begins to slide.

Which standards does it support?

• ASTM D-202
• ASTM D-4521
• ASTM D-3248
• TAPPI T-815
• TAPPI T-548
• TAPPI T-503

How does it work?

A prepared specimen is placed on the movable test plane. At the push of a button, the plane tilts upward at a constant rate until the sample begins to slide. The precise angle at which movement occurs is recorded as the coefficient of static friction.

Key features

• Offered in two versions: manual and computerized
• Constant, precise movement of the sliding plane
• Durable construction and precision craftsmanship
• Easy to operate, reliable results

Model and specifications

• Model: DSI‑152 XP Series (current model)
• Approx. size (W × D × L): 12 × 12 × 12 in.
• Approx. weight: 25 lbs
• Electricals: 115 V, 60 Hz, 1 phase (other options available)

Applications

Commonly used to test corrugated and solid fiberboard, writing and printing paper, packaging materials, shipping container materials, and electrical insulation papers.

FAQs

What does the Slide Angle Tester measure?
The coefficient of static friction, expressed as the angle at which a specimen begins to slide.

Are both manual and computerized versions available?
Yes, both units provide reliable and precise results.

What materials can be tested?
Paper, board, packaging, shipping materials, and insulation papers.