Electric pencil hardness tester
Get a quote：
Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
The Electric Pencil Hardness Tester is designed to determine the surface hardness of coating layers applied to finished products by means of a standardized pencil scratch method. The instrument provides stable loading, constant angle, and uniform motion, ensuring accurate and repeatable hardness evaluation of painted, sprayed, or coated surfaces. It is widely used for quality control, product inspection, and coating performance assessment in electronics and appliance industries.
Application
(1) Surface hardness testing of spray coatings on consumer electronics housings (mobile shells, laptop computer shells)
(2) Hardness evaluation of coated plastic and metal parts used in home appliances (TV frames, air conditioner panels, washing machine panels)
(3) Quality control testing of decorative and protective coatings in manufacturing processes
(4) Comparative testing of different coating formulations and curing conditions
(5) Inspection of finished products for coating consistency and scratch resistance
Standards
(1) GB/T 6739-2022 — Paints and varnishes — Determination of film hardness by pencil test
(2) ISO 15184 — Paints and varnishes — Determination of film hardness by pencil test
(3) ASTM D3363 — Standard Test Method for Film Hardness by Pencil Test
Features
(1) Electric drive system ensures stable and uniform test platform movement
(2) Fixed 45° test angle in accordance with international pencil hardness standards
(3) Adjustable test loads to meet different standard requirements
(4) Simple structure and easy operation suitable for routine laboratory testing
(5) Good repeatability and reduced operator influence compared with manual testing
Parameters
| Item | Description |
|---|---|
| Test angle | 45° |
| Test load | 500 g / 750 g / 1000 g, adjustable |
| Platform moving speed | Adjustable |
| Travel distance | 40 mm |
| Test platform size | Approx. 120 × 170 mm |
| Sample fixation | Fixed platform |
| Power supply | AC 220 V, 50 Hz |
Accessories
(1) Pencil set from 6B to 6H, total 13 grades
(2) Standard load weight set
Test Procedures
(1) Prepare the coating specimen and ensure the surface is clean and fully cured
(2) Fix the specimen securely on the test platform
(3) Select the appropriate pencil grade and install it in the pencil holder
(4) Set the test load and ensure the pencil is positioned at a 45° angle
(5) Start the tester to move the platform at the specified speed over the set travel distance
(6) Inspect the coating surface for scratches or coating damage and record the highest pencil grade that does not cause failure
Maintenance Information
(1) Clean the test platform and pencil holder regularly to prevent contamination
(2) Check the pencil holder alignment and test angle periodically
(3) Inspect electrical components and moving parts for normal operation
(4) Store the instrument in a dry, dust-free environment when not in use.
Send product request
Other supplier products
 |
Automotive Wires Low - temperature Impact Tester | Get a quote： Whats/App: +86 181 0160 0864 The Automotive Wires Low-Temperature Impact Tester is designed to evaluate the impact resistance of aut... |
 |
High Temperature Creep Test Machine | Get a quote： Whats/App: +86 181 0160 0864 Web: gellowen.co.uk The High Temperature Creep Test Machine is designed for evaluating the long-term c... |
 |
Filter Media Tester G505 | Get a quote： Whats/App: +86 181 0160 0864 Web: gellowen.co.uk The Filter Media Dynamic Filtration Performance Tester is primarily used to assess... |
 |
Manual Rubbing Color Fastness Tester | Get a quote： Whats/App: +86 181 0160 0864 The Manual Rubbing Color Fastness Tester is a portable, handheld instrument designed to evaluate the co... |
 |
Artificial Turf Abrasion Tester | Get a quote： Whats/App: +86 181 0160 0864 Web: gellowen.co.uk The Artificial Turf Abrasion Tester is designed to simulate mechanical wear condit... |
