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Taber® Shear/Scratch Tester Models 550 & 551: Description
Taber® Shear/Scratch Tester Models 550 & 551 Taber® Industries
The Taber® Shear/Scratch Tester Models 550 & 551 are precision instruments which employs interchangeable tools to measure the susceptibility of material surfaces to marring, shearing, gouging, scratching, scraping, engraving, and other similar physical damage not classified as ordinary wear.
The Taber® Shear/Scratch Testers are ideal for evaluating adhesive qualities of surface coatings, detecting the lack of homogeneity in comparative materials, rating similar or competitive materials, or analyzing the effects of age under controlled environmental conditions. Taber® Shear/Scratch Tester Models 550 & 551
The Taber® Shear/Scratch Tester Models 550 & 551 are designed to test a wide range of products and materials. Precision, calibrated weights provide a flexible testing range for rigid organic materials, adhesive coatings, paints, powder coatings, anodized materials, soft metals, synthetics, linoleum, laminates, plastics, glass, and many others.
A brief discussion on the Taber® Shear/Scratch Tester applications and interpretation of the determinations is available:
Adobe® PDF File Taber® Shear/Scratch Tester: Interpreting Test Results
Complete Data Sheets for the Taber® Shear/Scratch Tester:
Adobe® PDF File  Taber® Shear/Scratch Tester Model 550 / 551 Data Sheet
Adobe® PDF File  Taber® Shear/Scratch Tester Model 550 / 551 Brochure (CCSi)
The Taber® Shear/Scratch Tester:
  1. Model 550 [P/N 980552] operates at a speed of 0.6 RPM and includes cutting tools S—20 and 139—55. It is configured for 115 VAC and 60 Hz,
  2. Model 551 [P/N 980551] operates at a speed of 5 RPM, and includes cutting tools S—20 and 139—56. It is configured for 230 VAC and 50 Hz.
Taber® Shear/Scratch Tester Models 550 & 551: Standard Features & Options
Standard Features:
  1. Constant speed motor;
  2. Balanced, calibrated scale beam;
  3. Variable load from 0 — 1000 grams;
  4. Tests up to 4 in. square or round specimens;
  5. Adjustable gage block, tests up to 0.50 inch (12.5 mm) thick specimens;
  6. Soft touch ON/OFF switch;
  7. 500 Gram Calibrated Weight (2 each);
  8. Larger Image131763 Measuring Magnifier 10 x
  9. Spirit Bubble Level;
  10. Hex Wrench;
  11. Interchangeable Tools:
    Larger ImageS—20 Tungsten Carbide Contour Shear Tool,
    Larger Image139—55 Conical Diamond Tool (3 mil Radius, for Model 550),
    Larger Image139—56 Conical Diamond Tool (3.5 mil Radius, for Model 551),
    Larger Image139—58 Diamond Scratch Tool.
Optional Accessories (sold separately):
  1. Larger ImageS—20—1 Tungsten Carbide Fingernail Shear Tool;
  2. Larger Image139—61 Measuring Magnifier 7 x;
  3. Larger Image132618 Diamond Tool Standardization Plates, 2 each, for ISO 4586-2;
  4. Larger ImageETF—14 Stepdown Transformer, 230 / 115 VAC, 1000 Watt, 50 / 60 Hz.;
  5. Larger ImageScale Beam Height Extension Kit (550/551);
  6. Larger ImageScale Beam Height Extension Kit (502/502-ISO).

Please submit a Request for Quotation (RFQ)
Taber® Shear/Scratch Tester Models 550 & 551: Applicable Test Methods
SDO Number Title / Description
ASTM C217 Weather Resistance of Slate
CEN EN 438 (Part 2) Decorative High Pressure Laminates — Sheets based on Thermosetting Resins Part 2: Determination of Properties • 14. Resistance to Scratching
CEN EN 13310 Kitchen Sinks - Functional requirements and test methods
DIN 53 799 Decorative Laminated Sheets on Basis of Aminoplastic Resins: Test Method
DIN 68 861-4 Furniture Surfaces; Behavior at Scratches
Federal L-F-00450A Floor, Vinyl, Plastic (Canceled)
Federal L-T-00345 Tile Floor, Vinyl, Asbestos (Interim)
Federal L-T-751 Tile Floor, Vinyl, Asbestos
Federal SS-T-307 Tile, Asphalt, Grease Resistance (Canceled)
Federal SS-T-312 Tile, Floor: Asphalt, Rubber, Vinyl — Vinyl-Asbestos (Canceled)
ISO 4586-2 High-Pressure Decorative Laminates Part 2: Determination of Properties - Resistance to Scratching
Terrazzo 90322-9E-1 Conductive, Synthetic Latex Terrazzo Flooring

Copyright © 2006 CCSi, Inc. • All Rights Reserved • Published February, 2006
Corporate Consulting, Service & Instruments, Incorporated
221 Beaver Street • Akron, Ohio 44304 USA
Telephone: 800.742.8535 / 330.376.3600 • Facsimile: 800.229.9329 / 330.376.8500
www.ccsi-inc.com www.orecozone.net