Gardner Style Heavy Duty Impact Tester 

The Schap Heavy Duty Impact Tester is used to test the impact resistance of many types of organic coatings on surfaces, and is also used to establish quality standards for resistance to impact surface damage and penetration of the substrate construction material, such as plastics, resins, fiberglass, sheet metals, etc.  The tester consists of a vertical tube that guides a cylindrical weight dropping onto an indenter resting on the test sample.   The anvil base is constructed so that a thin flat sample panel can be inserted at 2” below the tube.   The weight has a pin handle which is used to raise the weight to the desired height in the graduated guide tube, and is released to facilitate the desired impact.   Graduations are marked in inch-pounds along the slot in the tube.  By gradually increasing the distance the weight drops, the point at which failure usually occurs can be determined.   A 2lb weight will develop an impact force of 80 inch-lbs and a 4lb weight will provide 160 inch-lbs of impact force.   The impact damage to the test sample may be determined visually or with other methods such as magnification or by application of a copper sulfate solution on steel samples.

The Heavy Duty Impact Testercomes complete with the anvil base & tube/punch support mounting assembly, a 40” graduated drop guide tube, an indenter(punch), a sample support(die), both 2lb and 4lb weights, and operator instruction manual. This same tester is available in a Metric Version, with 1kg and 2kg weights, and graduation scales in kg-cm impact forces.   Please specify when ordering, English or Metric version.  Also available from Schap Specialty Machine is an Extra-Heavy Duty Impact Tester which utilizes an 8lb weight dropped from up to 40” heights, and which generates up to 320 inch-pounds of impact force.   This tester is used for evaluating impact resistance of rigid sheets of PVC and other materials (30-60 mils thick) which exceed the 160 inch-lbs limit of the Heavy Duty Impact Tester in this quote.

                Specification:

           Meets requirements of ASTM D 2794-93 (2004), D 3029, D 4226.

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