Girth gears: Designing and producing girth gear and large pinions

  • Analysis
  • Calculation / Development
  • Production and on site assembly
  • Capacities

Ferry Capitain, other Company of the group, designs and manufactures girth gear. Our expertise has afforded us a place amongst the world leaders in the cement industry and other heavy industries.

CMD, with the cooperation of Ferry Caqpitain, offers a turnkey service including analysis of your installation, calculation and definition of products, manufacturing, testing, assembly on site and after sales and maintenance assistance. All of the above are subject to scrutiny in terms of an internal quality assurance plan.


CMD has a team of trained technicians who can carry out an analysis of your installation based on visual inspections, taking prints, measuring tooth temperatures, and vibration analysis.
CMD can also ensure that spare parts are interchangeable by doing a series of dimensional surveys on the original gear units.


Calculation / Development

With our own Engineering Departments and Finite Elements Modelisation software , CMD and Ferry Capitain are able to calculate and size up all gears based on our experience and in accordance with current worldwide standards (AGMA-ISO-DIN).


Production and on site assembly

Modern equipment and casting techniques provide cast steel of the best possible quality. Machining and cutting methods ensure that parts are manufactured to the standards of quality required .CMD technicians from the After Sales Service and Maintenance Department can help you in supervising the assembly and commissioning of your installations.


  • Heat treatment : 12 m x 6 m x 3,5 m ou Ø 9 m
  • Turning : 16 m
  • Boring : 16 m x 3,5 m
  • Cutting : 16 m – module 60 mm