8CM20C

The 8CM20C generator set brings to the offshore industry a legacy of proven reliability and durability in the marine industry. CM offshore generator sets feature standard modular designs, engine-mounted pumps and filters, and a full range of factory attachments that make their installation simple and efficient. Ideal applications for the 8CM20C offshore generator sets are main power on-board production vessels and platforms. Complete package offerings are MCS type-approved and compliant with IMO Tier II emissions standards, making their integration into vessels and platforms a simplified operation. Cat generator sets are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. Cat 8CM20C offshore generator set.

Get a Quote
Minimum Rating 1640 kV·A
Maximum Rating 1830 kV·A
Emissions IMO Tier II
Weight 50926 lb
Displacement 4589 in³
Engine Control Electronic
Stroke 11.81 in
Generator Set Control Electronic
Bore 7.87 in
Aspiration Turbocharged-Aftercooled
Width 99.8 in
Height 174.7 in
Length 267.6 in
Engine
  • Motor-driven barring gear, fitted on engine
  • Reversing contractor and pushbutton switch with cable
  • Electronic speed setting equipment with actuator and speed pick-up
  • Emergency shutdown equipment with pushbutton, separate, for manual emergency stop
Engine Indicators
  • Gauge board with set liquid damped pressure gauges for: fuel, lubricating oil, fresh water, starting air, and charge air.
  • On-engine thermometers for fuel, lubricating oil, fresh water, and charge air
  • Electric remote speed indicator
  • Turbocharger and remote speed indicator
  • Exhaust gas temperature indicator
Control
  • Manual control on engine, including: control panel with start /stop key, speed setting device, mechanical shutdown device, change over of control functions from engine to remote control
  • Starting solenoid valve on engine, 24 V DC
  • Separate electronic speed governor
Monitoring for Unattended Operation
  • Pressure switches, mounted on engine, for: - Lube oil pressure at full load below danger level - Low lube oil pressure - Lube oil pressure below danger level - Lube oil pressure prelubrication failed - Low fresh water pressure at engine inlet - Fresh water pressure at engine inlet below danger level - Low fresh water pressure in LT circuit - Low starting air pressure - Low control air pressure engine/shutdown air pressure - Low fuel pressure at engine inlet Switches for: - High lube oil temperature at engine inlet - Lube oil temperature at engine inlet above danger level - High water temperature at engine inlet - Water temperature at engine outlet above danger level - High charge-air temperature at engine inlet - Detection of water in charge-air duct - Leak fuel level - Alarm contact for high differential pressure at fuel filter - Alarm contact for high differential pressure at lube oil back flushing filter - Set of thermocouples after each cylinder, before and after turbocharger - Crankcase oil mist detector Control Cabinet with housings for wall mounting, including: - Protection equipment designed for automatic and manual stop input signals, starting interlock input signals, monitoring for the wire break of the input signal units and the emergency shutdown solenoid - Speed recording system for overspeed, firing speed and minimum speed - Start /stop logic, controlled by engine automatic start (optional) - Service hour counter - Optional Noris alarm system, cassette type, designed for alarm inputs for the engine including exhaust mean-value monitoring equipment as well as alarm inputs for the propulsion plant - Optional Group alarm panel for the bridge and with optional and acoustic alarm equipment
Starting Air System
  • Separate non-return valve for the starting air pipe to the engine
Air Intake System
  • Air intake filter, fitted on the turbocharger
  • Air bottles, separate
Diesel Oil System
  • Circulating pump fitted on engine
  • Duplex filter with differential pressure indication
Exhaust System
  • Turbocharger at free end with transition nozzle (0 degrees from the vertical and away from engine), with compressor cleaning device
  • Expansion joint separate
  • Separate silencer and spark arrester, unlagged 35 dB(A)
Fresh Cooling Water System
  • HT pump, fitted on engine
  • HT pump, fitted on engine
  • HT thermostat, not powered and separate
  • Engine preheating equipment, fitted on base frame
Lubricating Oil System
  • Plate cooler, fitted on engine
  • Force pump, fitted on engine
  • Prelubrication pump, fitted on base frame, electric motor driven
  • Plate cooler, fitted on engine - Force pump, fitted on engine - Prelubrication pump, fitted on base frame, electric motor driven - Boll and Kirch automatic backflushing filter, fitted on engine
  • Pressure control valve, fitted on engine
Connecting Parts - Engine
  • Set of connecting parts between flange coupling and flywheel
  • Flexible flange coupling between engine and generator
  • Base frame with flywheel guard and incorporating lube oil sump tank, for engine and generator
  • Mounting of engine and generator on the base frame
  • Set of bonded rubber rails for resilient mounting of the base frame
  • Set of flexible pipe connections
Tools
  • Set of tools for the engine including hydraulic tightening tools and nozzle tester
  • Set of tools for turbocharger
  • Inside micrometer for cylinder liners
  • Ruler for cylinder liner
Spare Parts
  • Set of engine spare parts for unrestricted operation
  • Set of spare flexible pipe connections