MAAG's major product lines in this area comprise of gearbox designs whose primary focus is for the cement plant manufacturer.  These lines comprise of the following:

The "WPV" type for the "vertical mill drive":

• 3 stage reduction gear, 1st stage bevel gear, 2nd and 3rd stage epicyclic.
• Uniform load distributed without offset from the mill table directly to the foundation
• Torque Split, 2nd stage has only 70% of the torque
• Optimized force flow
• Small gear wheels
• High Efficiency

  The range of WPU standard series:
  WPU-142 to WPU-420
  Power: 4,000 kW to 9,000 kW

• Two stage reduction gear, 1st stage bevel gear, 2nd stage epicyclic.
• Uniform load distributed without offset from the mill table directly to the foundation.

  The range of WPU standard series:
  WPU-16 to WPU-170
  Power: 250 to 4,000 kW

   

(double click the photo for an expanded view for sizing details and basic description)  

The "CPU" type "horizontal drive for Ball Mills:

   (double click the photo for an expanded view for a basic description    

The "CPU" type "replacement kit for the cement industry":

• All the benefits of the "CPU" listed above plus

• Reduced installation time

• Use of existing foundation and anchor bolts

• Ability to replace an existing gear utilizing the same shaft-to-shaft end details, flange connections, and in many cases, the existing couplings

The "LDG" type - Integrated Side Drive

The LGD gearbox from MAAG is designed with the state of the art technique, i.e. torque-split pinions and self-aligning pinions.

• Low foundation design, i.e. compact mill arrangement
• Low risk of vibration in the gear unit foundation
• Easy access for service and maintenance
• Direct lube oil return from the girth gear into the integrated lube oil tank minimum oil flow in the girth gear guard, i.e. minimum contamination of the lube oil

All MAAG heavy duty drive units utilize:

• Case carburized and ground gearing (except ring gears)
• Longitudinal tooth profile corrections performed asymmetrically to which takes into account: bending and torsion.  Asymmetrical lead modifications is the only way to assure even load distribution across the entire tooth flank.
• Quality - process-based management system (certified by SGS) in strict compliance with ISO 9001:2000.