Cromocol
Scratch Hardness Erichsen

Scratch Hardness Tester LINEARTESTER Model 249 - ERICHSEN

Multi-function device, linear single stroke and double stroke to 9999, scratch, rub, wipe, chemicals. Delivered and supported by Cromocol.

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Scratch Hardness Tester LINEARTESTER Model 249 - ERICHSEN

Optimized Scratch Hardness Testing for Durable Surfaces

The ERICHSEN LINEARTESTER Model 249 represents a pinnacle of innovation in the field of scratch hardness testing for sheet metal surfaces. This tabletop unit is engineered for precision, user-friendliness, and versatility, offering capabilities for scratch, rub, and wipe testing, along with resistance evaluation against chemicals. Its cutting-edge design facilitates scribe/scratch tests, cycle abrasion tests, crockmeter tests, MEK tests, and general solvent resistance tests.

Featuring an adjustable test force range from 0.5 N to 20 N and a 4-way height-adjustable load arm, the Model 249 is equipped for a wide array of test scenarios. Its intuitive touchscreen operation and electric scribe detection for insulating coatings on conductive substrates further enhance the testing process, ensuring accuracy and repeatability.

Variable testing speeds, adjustable stroke lengths, and a broad selection of test tools, including those with a hard, “golden” layer for easy wear identification, make the LINEARTESTER 249 Smart an indispensable tool for assessing surface durability.

Technical Specifications
Drive
  • Electric
Test speed
  • Single stroke: (10 - 100)mm/s\; double stroke: (10 - 400)mm/s infinitely adjustable
Test length
  • Single stroke: (50 - 110)mm
Stroke length
  • Double stroke: (35 - 150)mm variably adjustable
Testing Force
  • 0.5 N - 20 N (for 1 N - 40 N accessory required)
Scratch profile
  • Van Laar, Bosch, ISO, Clemen, etc.
Specimen dimensions
  • max. 210 x 210 mm
Portable / Stationary
  • Stationary
Dimensions (L x W x H)
  • approx. 550 x 380 x 325 mm

Documents & Downloads

Scratch Hardness Tester LINEARTESTER Model 249 - ERICHSEN - Datasheet PDF Document

Frequently Asked Questions

What is the ERICHSEN LINEARTESTER Model 249 used for?
The ERICHSEN LINEARTESTER Model 249 is a sophisticated piece of equipment designed for scratch hardness testing on sheet metal surfaces. It's engineered for conducting a variety of tests including scratch, rub, and wipe tests, along with evaluating resistance against chemicals to ensure surface durability.
What range of test force can the LINEARTESTER 249 handle?
The LINEARTESTER 249 is capable of handling an adjustable test force range from 0.5 N up to 20 N. For requirements beyond this range, a special accessory enables testing with forces from 1 N to 40 N, accommodating a wide array of testing scenarios.
Can the test speed and stroke length be adjusted on the LINEARTESTER 249?
Yes, the LINEARTESTER 249 offers variable test speeds that are infinitely adjustable from a single stroke speed of 10 to 100 mm/s and a double stroke speed of 10 to 400 mm/s. Additionally, the stroke length is variably adjustable with a range of 35 to 150 mm for double strokes and a fixed range of 50 to 110 mm for single strokes.
Is the LINEARTESTER Model 249 easy to operate?
Absolutely, the LINEARTESTER Model 249 is designed with user-friendliness in mind. It features an intuitive touchscreen operation and an electric scribe detection mechanism for efficient testing, especially on insulating coatings over conductive substrates. This ensures easy setup and operation.
What types of surfaces can be tested with this equipment?
The LINEARTESTER Model 249 is primarily designed for testing the scratch hardness of sheet metal surfaces. However, its versatile design and adjustable testing parameters make it suitable for a broad selection of materials that require evaluation for scratch resistance, chemical resistance, and overall surface durability.
Can the LINEARTESTER 249 conduct tests according to industry standards?
Yes, the system is equipped to perform tests in accordance with various recognized standards, including but not limited to Van Laar, Bosch, ISO, and Clemen. This ensures that testing outcomes are reliable and can be benchmarked against industry norms.
What are the dimensions and portability options of the LINEARTESTER 249?
The LINEARTESTER 249 has dimensions of approximately 550 x 380 x 325 mm. It is categorized as a stationary unit due to its size and design for tabletop use in laboratories or quality control stations, making it an integral fixture in testing environments.

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