GB/T4852-2002 Initial Tack Tester

GB/T4852-2002 Initial Tack Tester

Model: CBY-1

Purpose: Utilizes the inclined rolling ball method to test the initial tack of samples by measuring the adhesive force between a steel ball and the adhesive surface under slight pressure during brief contact. A steel ball is rolled over the adhesive surface of the tape or label placed on an inclined plate. The initial tack is evaluated based on the maximum size of the steel ball that can be adhered to a specified length of the adhesive surface.

Product Features

1. Constructed with high-quality aluminum, offering an aesthetically pleasing and durable design.

2. Innovative precision angle adjustment mechanism for easier and more accurate angle control.

3. Fine-tuning knob for adjusting the steel ball's position in all directions (front, back, left, right).

4. Steel balls made from GCr15 bearing steel, with shape tolerance and surface roughness precision exceeding Grade 40 as specified in GB/T308.

Technical Parameters

1. Adjustable inclination angle: 0～60°

2. Platform width: 120mm

3. Test area width: 80mm  

4. Standard steel balls: 1/32 inch～1 inch  

5. Dimensions: 320(L)mm×140(B)mm×180(H)mm

6. Weight: 6kg  

Standard Configuration: Main unit, one box of standard steel balls (sizes 1-32)

Compliance Standard: GB/T4852-2002 "Test Method for Initial Tack of Pressure-Sensitive Tapes—Rolling Ball Method"