What is the PIT302CW-196?

A computer-controlled automatic Charpy impact testing machine with liquid-nitrogen refrigeration, built for measuring the impact resistance of metals at sub-zero temperatures. Maximum impact energy is 300 J over a 10–90% FS range.

Which standards does it cover?

ISO 148-1, ASTM E23, EN 10045-1, JIS Z 2242, GOST 9454-78 and ISO R83, with 2 mm and 8 mm striking edges.

How cold does it go?

Liquid nitrogen holds the chamber from +30 °C down to −190 °C, with a theoretical minimum of −196 °C from a 50 L tank under PID control. Cooling from +30 °C to −180 °C takes under 30 minutes.

How is the specimen handled?

Specimens leave a 20-piece magazine by pneumatic transfer in 3 s ±1 s and are positioned to 1 mm. Motorised collection and filtering separate qualified from broken samples.

How accurate is the measurement?

A photoelectric encoder gives 0.025° angle resolution and 0.01 J screen resolution (0.5 J on the dial). Impact speed is 5.24 m/s at a 150° striking angle, with a 40 mm support span.