Scratch Hardness Tester – Motorized

Presto’s Scratch Hardness Tester is a suitable apparatus for carrying out the tests relating to resistance to scratch under a specified load. Tests are conducted either on a go/no go basic by testing at a single specified load on the needle or by increasing loads to determine the minimum load at which the coating is penetrated. Scratch Hardness Tester is used to test paints, varnishes, lacquers & similar products. This instrument is most suitable for small laboratories and industries where repetitive quality control tests are carried out.

Presto offers a motorized model of scratch resistance tester to minimize human interference. In this machine, there is a motorized assembly to move the needle to and from, a specified weight is applied on the needle as per the industrial standards. This test determines the scratch resistance and wear and tear of the sample. This machine is widely used in laboratories, quality management departments of the manufacturing units.

This machine, which operates from a 220V 5OHZ AC supply, is encased with a cover enclosing the gears and other parts for operating the slide at a constant speed and the arm lifting mechanism. The needle arm is counterpoised and rigid to prevent whip or chatter at the needlepoint. A 1 mm needle-ended needle (normally supplied with each instrument) is held in a chuck at 90o to the test panel and can be easily removed for inspection and replacement. Weights providing increments of 200gm, 300 gm, 500gm, 1kg. Mass is loaded above the ended needle. Additional weights up to a maximum of 10kg loading are available as optional accessories for harder coatings.

This testing instrument has been made with the latest design with modern aesthetics and electronic control. It is very easy to use and contains Polycarbonate Specimen Clamp for Paint & plating Testing. You can efficiently make use of this fully automatically operated electronic device.

This amazing testing equipment will minimize human interference with its motorized working mechanism. To conduct the test efficiently, you can easily take a piece of sample to test. The size of the specimen will be 130 x 69 x 1mm. Move the Resting lever down, so that the oscillating arm is held upward. Place the sample of the painted metal sheet over the rubbing platform and clamp it firmly.

To easily commence the test, you can check the needle endpoint that should be fitted with a 90-degree angle. Now you can move the resting lever up, the oscillating arm comes on the test specimen. Load needle arm with weights to determine the threshold of failure. As specified for go/no go tests or progressively increasing load until failure occurs. Now press motor Switch ON and the oscillating arm will start the oscillations. If a failure occurs, the needle will touch with the base plate a green light will illuminate and buzzer on. Remove panel for visual assessment of scratch.

Features of Scratch Hardness Tester – Motorized

This amazing lab testing equipment has been equipped with an advanced set of features that will help you to conduct the test with ease. Here is the list of its advanced features:

• Easy changeability of weights.
• Provides accurate results in the digital indicator.
• It requires a single-phase power of 220-240V AC and 50Hz.
• It ensures highly safe and convenient operations.
• Motorized oscillating arm with Teflon rollers for noise-free movement
• Ergonomic design with Electronic controls
• Highly accurate test results under uniform load and specified diameter.
• Equipped with Teflon rollers to minimize friction
• Fully Automatic testing through a motorized system
• Uniform load by weights on the needle for evenness in testing
• Firm holding of the Test sample by Steel Clamping pins
• Geared system for oscillating arm movement
• Instant braking system
• Light Indicator for sample failure notification

Technical specifications

• It’s an advanced version with user-friendly features.
• It’s equipped with a motor of ½ HP along with a digital display.
• The instrument is available with various weights of 500g, 300g, and 200g.
• The capacity of the machine is 1 Kg. (Machines with higher capacities are also available on request)
• Size of sample: 130*70 mm
• Test Operation: Motorised
• Diameter of Needle: 1 ± 0.05 mm
• Length of travel of finger: 100 ± 8 mm
• Power: 220V, 50Hz, Single Phase