Rolling Ball Tack Tester
Model KRT-250 | Quick Tack Testing Machine for Adhesive Tapes
The Katpot Systems Rolling Ball Tack Tester (Model KRT-250) is a precision instrument designed to measure the initial tack (stickiness) of pressure-sensitive adhesive (PSA) materials such as tapes, labels, and films.
It works on the rolling ball method, where a stainless-steel ball travels over the adhesive surface; the distance covered by the ball indicates the tack strength — the shorter the distance, the higher the tack.
This quick, visual, and repeatable test helps determine the instant adhesion properties of adhesives during the first contact.
Designed for laboratories, QA, and production lines, it complies with ASTM D3121 and ensures consistency and reliability in adhesive performance evaluation.
Suitable for adhesive manufacturers, tape converters, label producers, and R&D units aiming for international-standard testing accuracy.
Advanced Features
- Measures initial tack strength using the standard rolling-ball method.
- Provides quick, simple, and repeatable test results.
- Stainless-steel test ball and track ensure durability and precision.
- Available in single or dual-channel configuration for comparative testing.
- Fixed 21° inclined plane ensures consistent testing geometry.
- NABL-traceable calibration certificate for standard compliance.
- Compact, lightweight, and ideal for lab or production-floor use.
- No power required – fully mechanical and maintenance-free design.
Product Importance
- Evaluates initial tack — how quickly an adhesive grips the surface on first contact.
- Provides a simple and fast quality-control method for PSA tapes and labels.
- Detects variations in adhesive coating, formulation, and curing process.
- Prevents product failures due to poor bonding or excessive tackiness.
- Essential for batch-to-batch consistency and adhesive performance comparison.
- Complies with ASTM D3121, ensuring internationally recognized testing results.
- Helps optimize adhesive formulations and coating parameters during R&D.
Technical Specifications
| Model No | KRT-250 |
|---|---|
| Type | Rolling Ball Tack Tester |
| Measurement Range | 0 to 300 mm (Ball travel distance) |
| Test Angle | 21° (Fixed) |
| Ball Material & Size | SS 304 / 11.1 mm diameter |
| Release Mechanism | String release for uniform start |
| Channels Available | 1 Channel / 2 Channel (optional) |
| Compliance Standard | ASTM D3121 |
| Calibration Certificate | NABL-Accredited Available |
| Power Requirement | Manual (No power required) |
| Construction Material | SS / Powder-Coated MS Frame |
| Machine Dimensions | Compact bench-top unit for lab use |
