Finger Tip Abrasion Tester

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The Finger Tip Abrasion Tester is designed to simulate human fingertip contact on a test specimen by applying a defined load, stroke, and speed. It evaluates the abrasion resistance and durability of surfaces subjected to frequent tactile interaction, such as control panels, touch surfaces, switches, and coatings.

Application

The applied load is set using dead weights, and the scrub (abrading) distance is adjustable from 1 to 4 mm, allowing precise adaptation to different test materials and geometries. This tester supports a wide range of applications, including mechanical abrasion and chemo-mechanical testing when liquids such as artificial sweat, hydraulic oil, or cleaning solutions are applied to the test fabric.

Standard

(1) IEC 68-2-70 – Mechanical durability of materials via fingertip/hand simulation

(2) GB/T 2423 series – Environmental testing of electrical and mechanical durability

(3) IEC 60068-2-70 – Fingertip/hand friction durability testing

(4) IEC 60068-2-72 – Surface wear and operational lifetime testing of materials

(5) ISO 11998 – Coating scrub and abrasion resistance methods

(6) ISO 2813 – Surface state and gloss evaluation methods

Technical Specifications

Feature	Specification
Test Method	Simulates fingertip contact abrasion
Standard Compliance	IEC 68-2-70
Test Load	Variable from 1 N to 100 N (set with dead weights)
Stroke (Scrub Distance)	Adjustable from 1 to 4 mm
Test Pistons	10 mm and 20 mm diameter silicone test pistons
Cycle Counter	Pre-set digital counter
Operation Modes	Mechanical abrasion and chemo-mechanical abrasion
Dimensions (Approx.)	100 × 80 × 60 cm
Power Supply	110 V / 60 Hz
Construction	Precision-machined components for repeatable operation
Control Interface	Manual adjustment and digital cycle control

Features

Realistic Human Contact Simulation: Accurately replicates fingertip abrasion under controlled load and stroke conditions.

Adjustable Parameters: Easily modify test load and stroke to suit different surface materials and textures.

Chemo-Mechanical Capability: Enables testing with liquids such as sweat or cleaning agents for enhanced realism.

Durable & Reliable Design: Built from precision aluminum and stainless steel components.

User-Friendly Controls: Simple setup with pre-set counter and intuitive adjustments.

Comprehensive Documentation: Supplied with operation manual, maintenance schedule, and replacement parts list.

Test Procedures

Measure and record specimen dimensions and thickness.

Secure the sample in the fixture and align properly.

Adjust fingertip mechanism height according to specimen thickness.

Install friction pad or chemical carrier.

Set load, friction stroke, and cycle count.

Start the device and monitor operation.

When the set cycle count is reached, the device automatically stops.

Remove the sample and evaluate surface appearance or performance changes.

Record and organize test results.

Maintenance Information

Keep fingertip heads and clamps clean to avoid contamination.

Inspect moving parts and mechanism for wear regularly.

Replace silicone fingertips or friction pads when worn.

Check and calibrate load weights and counter periodically.

Store in a clean, dry environment to prevent corrosion or damage.

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