Expert Repair and Manufacture of large bore hydraulic cylinders for use in rolling mills.

CMA offers a viable and professional alternative for repair and/ or replacement of these most critical cylinders, with bore diameters typically around 1000mm. A typical cylinder used as the primary roll force device in a steel or aluminium rolling mill must operate trouble free at loads/ pressures up 15MN/ 350 Bar, for many years.

A feature of our manufacture and repair service is our specially developed bore surface finishing process for extended seal life.

  • As received full load and stroke testing in CMA’s custom-built 3000T test jig.
  • Testing with, and without load cells, including strain gauge and inductive type cells.
  • Strip-down, assessment and reporting.
  • Repair planning and design to suit specific problems as detected.
  • Seal updates to best currernt practice.
  • Co-ordination and QA management of all machining and repair operations, including surface finishing, coatings, and replacement parts.
  • In-house assembly.
  • Testing and calibration.