MCD UCD

MARINE CONTROL DRIVE (MCD)

	The Marine Control Drive or MCD is a variable speed drive availabel in a range of sizes with power capacity from 160 to 4500 kw (215 to 6035 hp) at 1800 RPM.

The very latest developments include changes to the clutch on the very largest model enabling it to transmit 3000 kW with full modulation without any restriction. The basic torque transmission components of the MCD are similar to those of the multi-disc clutch. A stack of friction discs compressed to a greater or lesser degree is mounted alternately on the driving and driven shafts. An oil film flows continuously between these discs. Consequently, the torque is transmitted through a hydro viscous media and without wear as the discs are not in contact during the slipping phase. When lock-up is achieved, the input and output speeds are synchronized; thus efficiency is maximum (99%). This advantage is important versus other couplings where output shaft slip, relative to the input shaft, is required to transmit the torque.

UNIVERSAL CONTROL DRIVES (UCD)

Provide precise control of flow, pressure, speed, torque or power. May be used on its own with horizontal or vertical mounting...or with a fluid coupling or hydraulic torque converter-depending on the application. Request Bulletin SB-172-E from Twin Disc International S.A., Nivelles, Belgium.