Power Division Plus Positioning

Marine Control Drives

The Twin Disc marine control drive (MCD) delivers two-in-one operation, performing as a fixed ratio drive when underway and as a variable ratio drive when a power divider is required. Recent clutch changes enable the largest model to transmit 3000 kW with full modulation and no restrictions.

MCD-2000

Twin Disc pioneered the slipping clutch concept more than 30 years ago and today offers a full line of timetested, field-proven Marine Control Drives (MCDs).

The new series of MCDs offers distinct operating advantages for any vessel requiring highly accurate positioning or extreme slow-speed maneuverability while splitting main engine power to operate high-powered FiFi pumps.

Description
  • Extraordinarily modulated power achieves propeller speeds below engine idling speed
  • Unique design and manufacture allow for intentional clutch slipping to regulate propulsion speed
  • LD (Low Dissipation) slips up to engine idle speed for maneuvering and DP operation*
  • HD (High Dissipation) slips up to rated engine speed with the capability to dissipate all heat generated by that when power dividing*
  • Optional high-power PTO to drive auxiliary equipment
  • Used in conjunction with azimuth thruster systems
  • Best alternative to controllable pitch propellers (CPP)
  • Smooth, gradual propeller speed change resulting in improved maneuverability
  • Safer and easier vessel control during slow speed maneuvering and docking
  • Adjustment of propeller speeds below engine speed rating
  • Divides the power from the main propulsion engine to eliminate the need for auxiliary engines
  • Delivers an instant response when required
  • Bearing calculated for high universal joint angles at maximum power
  • Dynamic positioning (DP) capable
  • Emergency “come home” device per classification requirements
  • Easy, in-engine room maintenance; no need for diver assistance or to dry-dock the vessel

* Slip at any engine speed can be done based upon specific application criteria. Twin Disc’s expert application team will help customize your MCD selection to any desired operator requirement.

SPECIFICATIONS

LD MODELS

LD MODELS

HD MODELS

HD MODELS

HD MODELS

Model

kW/rpm

Model

kW/rpm

Dissipation

MCD-2000-1LD

1.20

MCD-2000-1HD

1.20

100 kW

MCD-2000-2LD

1.60

MCD-2000-2HD

1.60

130 kW

MCD-2000-3LD

2.00

MCD-2000-3HD

2.00

160 kW

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