Enerpac’s high tonnage construction jacks are designed specifically for heavy lifting loads. Cylinder lifting capacity ranges from 50 to 1,000 tons and maximum pressure is up to 700 bar. Elements of high tonnage cylinder are: mechanical limiter of feed to prevent excessive piston feed, mechanical lock-up for load holding and two-sided action with hydraulic retraction. Available are series CLSG, CLS, CLL, CLRG.