as market leader, the innovational spirit, the well-known reliability in actuators design and the high quality manufacturing level. The new technical features developed and incorporated in this product line allow to have the best product versatility for an easier valve automation. The design in fully compliance with all the international standards is also covered by international patents. The 4th Generation Upgrade series offers the widest and most complete actuator range with huge options availability. The 4th Generation Upgrade line counts a combination of: - 17 different model sizes both in double acting and spring return - 6 different protection levels - 3 different working temperature executions (from -55°C/-67°F up to +150°C/+302°F) - Multiple choice of ISO flange and drive shaft connection for each actuator size.The -40°C lower temperature construction is offered as standard, as well as the nuts&bolts in stainless steel as a base. With output torque up to 10.000Nm, Air Torque is the only manufacturer in the world offering the biggest rack and pinion actuator in aluminium.