The Holcim (US) Hagerstown plant is the most recent USA cement plant to order a new raw material mill from Gebr Pfeiffer, Inc.

The order was placed through KHD Humboldt Wedag, as the engineering and equipment supplier for the Hagerstown plant modernisation. KHD has been contracted to modify the existing production line to increase the plant s potential production rate to approximately 2400tpd and to comply with the new NESAHP environmental regulations.

KHD s scope of supply begins with modifying the raw material feed system and continues through to the clinker handling system and storage hall. As part of the solution, a new raw material grinding mill, the MPS 3750 B, along with all related engineering services will be supplied by Gebr Pfeiffer, Inc.

The raw material grinding mill includes a rotary air lock with drive, MPS 3750 B mill, an SLS 3150 B high efficiency classifier, and includes Gebr. Pfeiffer s patented “Lift and Swing” technology which greatly improves maintenance efficiency.

Commissioning for this project is planned for mid-2016.