Technical Parameters Parameter Specification Model Fisher 3620J Type Double-Acting, Piston Actuator (Scotch Yoke) Action Double-Acting (Air-to-Open / Air-to-Close) Standard Travel 90° quarter-turn. Body Material Cast Aluminum Piston Material Steel Operating Pressure Range 50 to 150 psig (3.4 to 10.3 bar) is standard. Torque Output Varies by size and supply pressure. Example (at 120 psig): - Size 30: ~ 2,200 lb-in (249 Nm) - Size 70: ~ 12,500 lb-in (1,412 Nm) - Size 100: ~ 25,000 lb-in (2,824 Nm) Sizes (Frame Size) 30, 40, 50, 60, 70, 80, 100, 120