1. ACTA AS Eddy current & Ultrasound Roll testing

2. ACTA 1962 – 2002 40 years of High Tech, 40 years of High Tech, Quality, and Customer Care 40 years of specialization 40 years of specialization in industrial non-destructive testing AInternational distribution i

3. Industrial testing ACTA success stems from its highly specialized team gathering development engineers, computer, electronic and service technicians.

4. Eddy current + Ultrasounds Why a combination? Pressure cracks often initiate in the roll immediate subsurface Pressure cracks often initiate in the roll immediate subsurface New roll grade developments require an earlier defect detection New roll grade developments require an earlier defect detection Possible shell / core disbonds in bimetallic rolls need close attention Possible shell / core disbonds in bimetallic rolls need close attention

6. How does it work? Eddy current are an electro magnetic field induced on the roll surface. Eddy current are an electro magnetic field induced on the roll surface. Ultrasounds are waves mechanically transmitted to the roll body. Ultrasounds are waves mechanically transmitted to the roll body. Excellent surface detection Excellent surface detection High sensitivity High sensitivity Detects metallurgic changes (bruises) Detects metallurgic changes (bruises) Excellent subsurface detection Excellent subsurface detection Allows much deeper detection (bond) Allows much deeper detection (bond) Measures crack depth Measures crack depth

7. Fully digital main unit Digital means : No hassle with constant recalibrations. Reliable and repeatable results Easy use of different testing programs, adapted to your roll grades

8. Automatic positioning test head Test head including all sensors is automatically positionned over the roll surface. Gap is maintained constant whatever the roll crown or the grinder misalignment Test head including all sensors is automatically positionned over the roll surface. Gap is maintained constant whatever the roll crown or the grinder misalignment

9. Automatic ultrasound test runs along with eddy current test

10. User friendly interface

11.  PC based, Windows environment, clear displays, intuitive operation, several languages available...no wonder why operators use the ACTA AS with such comfort and confidence.

12. And so many more features…  Fully digital, no calibration needed  Test results and roll data are automatically stored in a simple and automatic way.  Easy to network, even wirelessly, management keeps a hand on all test results.

13. References Worldwide

14. Simpson Technical Sales, Inc. 212 University Drive Aliquippa, PA. 15001-1645 Phone: 724-375-7133 Cell Phone: 412-671-1930 FAX: 724-375-7657 E-MAIL: simpsondb@attbi.com E-MAIL: simpsondb@attbi.com AInternational distribution i