Enerpac CST4381 4.4 kN Threaded Body Cylinder

The CST4381 is a threaded body, single-acting, spring return hydraulic workholding cylinder from the Enerpac CST series. It delivers high clamping force from a minimal cylinder diameter, is used in push applications and is one of the longer-stroke models in the series. The cylinder offers 4.4 kN (980 lbs) push capacity, 37.8 mm (1.49 in) stroke and 345 bar (5,000 psi) maximum operating pressure. Body thread is .750-16 UNF, effective area is 0.2 in², advance oil capacity is 0.29 in³ (approx. 4.8 cm³), and weight is approx. 0.32 kg (0.7 lbs). It has a steel body and solid plunger with a #8-32 UNC tapped plunger end. The threaded body allows fine positioning and easy installation, while internal plunger wipers enable maintenance-free, high-cycle performance. It is suited to clamping, positioning and support tasks in fixtures and jigs.