charpy machine manufacturer ASTM E23 ISO148 JBW-C Series Computerized Pendulum Charpy Impact Testing Machine Price 300J 500J 750J Main Technical Specifications: Specifications JBW-300C JBW-450C JBW-600C JBW-750C Max. impact energy (J) 300 450 600 750 Effective use of scope 20% -80% F.S Pendulum weight (N) 214.3594 321.5391 428.7188 535.8985 Moment of pendulum (N.m) 160.7696 241.1543 321.5391 401.9239 Impact velocity (m/s) 5.24 …