Electric Adhesion Circle Drawing Instrument

The electric circular adhesion tester uses a motor to drive a needle to draw a uniform circle on the coating surface, applying a fixed pressure to scratch through the coating down to the substrate. The adhesion level is determined based on the scratch morphology and the extent of coating peeling. It is used for testing the adhesion of coatings and electroplated layers, and complies with standard testing methods.

Instruments

Electric Circle-drawing is used to ensure uniform speed and constant strength, Travel 20-80mm adjustable, Rotation speed 10-120 +/- 1 rpm adjustable, equipped with automatic judgment prompts and precision dual rail system to improve test Repeatability and data accuracy.

$ 1397.00

The steel stylus is used for precision drawing, the diaMeter range is 0-10.5 mm, and it is equipped with multiple sets of weights to achieve accurate loading.

$ 332.00

Rotation speed 80rpm, Working Travel 80mm, in line with international standards, to ensure accurate and reliable film adhesion assessment.

$ 373.00

Adopting manual sprocket drive structure, Working Travel ≥ 80mm, equipped with four weight combinations, accurate drawing is achieved through replaceable 808 stylus, and different diaMeter graphics are supported.

$ 325.00

The paint film adhesion was measured by the circular trace method, the drawing diaMeter was 0-10.5 mm, and the Working Travel was 80mm. The integrity of the paint film was evaluated according to seven grades, and the operation was simple and reliable.

$ 404.00

14Mm diaMeter design, starting pressure 1.4MPa, maximum pulling pressure up to 50MPa, suitable for a variety of drawing adhesion instrument, providing stability testing performance.

$ 779.00

The hand wheel drive is used to realize the synchronization of the table movement and the needle drawing circle, the drawing diaMeter can be adjusted from 0 to 10.5mm, and it is equipped with 808 stylus and graded weight.

$ 267.00

The adhesion was measured by the circular trace method, the drawing diaMeter was 0~ 10.5mm, and the Working Travel ≥ 80mm. The integrity of the paint film was evaluated by seven grades, and the operation was simple and conformed to the GB/T1720 standard.

$ 444.00

Tack is good and non-degumming, adhesion reaches 7.6 N/cm, mass performance is stable, suitable for cross-cut adhesion testing, to ensure accurate film integrity assessment.

$ 174.00

Hydraulic pump is used to uniformly pull off the test column, the speed does not exceed 1MPa/s, the test force is directly displayed by liquid crystal, and the adhesion failure and cohesion failure can be distinguished, with an accuracy of +/- 1% F.S.

$ 78.00

The paint film adhesion was measured by the circular trace method, the drawing diaMeter was 0~ 10.5mm, and the Working Travel was 80mm. The integrity of the paint film was evaluated according to seven grades, and the operation was simple and reliable.

$ 267.00

Hydraulic system is used to achieve coating detachment test, equipped with 240 * 320 color touch screen, automatic storage of 10000 data and display drawing strength-time Linear dispersion, spindle size 20mm accuracy of 0.001MPa.

$ 1468.00

Hydraulic pulling force technology, equipped with 20mm spindle, range 0.7-20 MPa, accuracy +/- 1% FSR, waterproof and dustproof design, suitable for harsh environments, with 1.5 Meters hose for easy operation in narrow areas.

$ 1171.00

Using 14mm spindle diaMeter, Measurement range 0-64.99 MPa, equipped with 240 * 320 color touch screen, can store 10000 data and display drawing strength-time Linear dispersion, support automatic conversion and Chinese and English switching.

$ 1468.00

The device uses mechatronics design, weight only 3.5kg easy to carry; equipped with High Accuracy S type Sensor, accuracy of 0.5% F.S; support 0.1-50 mm/min adjustable drawing speed, built-in lithium battery for outdoor use.

$ 1824.00

Articles

The adhesion tester employs a comparative analysis of methods including the cross-cut test, the scratch test, and the pull-off test.
This article compares three commonly used adhesion testing methods: the cross-cut test, the scratch test, and the pull-off test.
Circle method adhesion tester for evaluating the bonding strength of organic coatings
This article introduces how the circle method adhesion tester evaluates the bonding force between organic coatings and substrates. The instrument uses a stylus to draw a spiral line on the coating surface, and the adhesion level is assessed based on the number of circles before the coating begins to peel off. A smaller number indicates stronger adhesion.
Circle Method Adhesion Tester for Evaluating the Adhesion of Paint Coatings by the Circular Rolling Line Method
The rolling circle method is a technique for testing the adhesion of paint coatings using a circle-drawing instrument. The instrument employs a fixed-load stylus to draw a continuous circular trace on the coating at a constant speed, and the adhesion level is assessed based on the peeling condition of the scratch.
Operation Specification for Circular Scratch Adhesion Tester
The circle method adhesion tester is used to evaluate the adhesion strength between coatings and substrates. Before operation, it is necessary to inspect the instrument, prepare samples, and control the ambient temperature and humidity. During testing, the sample should be secured, appropriate load and scratch spacing should be selected, and the stylus should be moved at a constant speed to create a circular scratch.
Correlation of Evaluation Results Among Circle Method, Grid Method, and Pull-Off Method in Adhesion Assessment
This article mainly discusses three common methods used in coating adhesion testing: the cross-cut test, the scratch test, and the pull-off test. The choice of method should be based on the specific characteristics of the coating and the testing objectives. Sometimes, combining multiple methods can provide a more comprehensive evaluation of adhesion performance.