The High capacity machines design meets the demands of testing high strength concrete specimens. Testing programs where accurate and repeatable test results are required. They exceed both ACI and ASTM requirements for frame rigidity and accuracy. Ideal for commercial testing laboratories that commonly test a wide variety of specimen types. The design of the high capacity machines provide easier operation and loading of specimens. The load frames feature wide horizontal openings and large lower platen tables. As well as, bottom-mounted pistons with dust shields and heavy duty load frame mounting stands. Each lower platen table is hardened to 55 HRC or greater for longer service life. The platen tables are also plated for corrosion resistance and marked with concentric circles for easier centering of test specimens.