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Overview

Producing reliable power from 1735 to 2600 kWe, each generator set has been designed to meet World bank (WB) emission certification stage 2. The CM25C 50 and 60 Hz, 6, 8 or 9 cylinder, turbocharged-aftercooled generator set, is designed for Ultrafast start time and load acceptance, low fuel and oil consumption requiring low maintenance.

Generator Set Specifications

Units:
Minimum Rating 1735 kWe 1735 kWe Less
Maximum Rating 2600 kWe 2600 kWe Less
Emissions/Fuel Strategy (WB) Cert stage 1 and 2 (WB) Cert stage 1 and 2 Less
Voltage 3000 to 13800 Volts 3000 to 13800 Volts Less
Frequency At Speed 50 Hz @ 750 / 60 Hz @ 720 50 Hz @ 750 / 60 Hz @ 720 Less
Duty Cycle Prime, Continuous Prime, Continuous Less
Ready To Accept Loads (Preheated/Vented) 40 s 40 s Less
Normal Ramp Up To 100% Load 75 s 75 s Less
Emergency Ramp Up 10% To 100% Load 25 s 25 s Less
Genset Efficiency Up To 44.20% 44.20% Less

Engine Specifications

Engine Model CM25C, 4-stroke-engine CM25C, 4-stroke-engine Less
Bore 10.04 in 255.0 mm Less
Stroke 15.75 in 400.0 mm Less
Aspiration Turbocharged-aftercooled Turbocharged-aftercooled Less
Engine Rating Range 1800 - 2700 kW 1800 - 2700 kW Less
Configuration 6,8,9 cylinder 6,8,9 cylinder Less
Fuel Type Diesel oil / heavy fuel oil (HFO) / crude oil Diesel oil / heavy fuel oil (HFO) / crude oil Less
Swept Volume 1247.0 in³ 20.4 l/cyl Less
Mean Effective Pressure Up To 355.0 psi 24.5 bar Less

Generator Set Dimensions

Length - Minimum 318.0 in 8070.0 mm Less
Length - Maximum 375.0 in 9516.0 mm Less
Width - Minimum 98.0 in 2479.0 mm Less
Width - Maximum 100.0 in 2534.0 mm Less
Height - Minimum 154.0 in 3911.0 mm Less
Height - Maximum 156.0 in 3963.0 mm Less
Dry Weight - Genset (minimum) 94799.0 lb 43.0 ton (US) Less
Dry Weight - Genset (maximum) 123459.0 lb 56.0 ton (US) Less

CM25C Standard Equipment

Fuel System
  • Gas valve unit (GVU) (only dual fuel (DF) and gas)
  • Engine ventilation module (only dual fuel (DF) and gas)
  • Circulation module
  • Separator module
  • Pre-pressure module
  • Ignition fuel oil module (only dual fuel (DF))

Lubricating Oil System
  • Combined module: cooling water system and lube oil system
  • Lube oil separator module
  • Piping interface module

Cooling Water System
  • Cooling water system with radiators
  • Piping interface module
  • Combined module: see lube oil system

Starting System
  • Starting air receiver module
  • Starting air compressor module

Combustion Air System
  • Air filter - pulse
  • Air filter - oil bath
  • Air filter - pocket

Exhaust System
  • Oxidation catalytic (Oxicat) converter system
  • Exhaust gas ventilation module (only dual fuel (DF) and gas)
  • Exhaust gas silencer
  • Selective catalytic reduction (SCR) system

Control & Monitoring System
  • Gas leak detection per cylinder (only dual fuel (DF) and gas)
  • Local data panel (LDP) / generator control panel (GCP)
  • Engine monitoring package
  • Local control panel (LCP)
  • Motor control center module (MCC)

Mounting System
  • Elastic mounting - genset/engine

Reliable Operation

  • Intensive cooling of key components including exhaust valve seats, injector cooling integrated into lube oil system
  • Reliable, proven and high efficient single turbo charging system
  • Classification society standards ensure high safety and quality
  • Intelligent simplicity ensures a robust engine platform
  • Optimized service schedules enable high availability and long durability

Control & Monitoring

  • Ultrafast start time and load acceptance
  • No engine start limitations
  • Continuous power (base and peak load), prime power, stand-by
  • Part load with high efficiency
  • Monitoring for unattended operation
  • Asset intelligence system

Ease Of Installation

  • Reduced complexity of standard modular design allows an easy installation
  • Low space requirements between the gensets
  • Genset is ready for installation
  • Generator set designed for direct elastic mounting

Ease Of Operation

  • Low fuel and oil consumption
  • Low maintenance requirements
  • Operator and maintenance training courses available

Intelligent Simplicity

  • High reliability, modular design and integral construction reduce the number of components by 40% over conventional designs e.g.:
    - Dry engine block with integrated ducts for lubricating oil and charge air and underslung crankshaft
    - Compact cylinder head design
  • Smart maintenance solutions:
    - Easily removable cylinder heads, quick removable fluid connections
    - Split connecting rods to allow fast and easy piston removal without disturbing the big end bearing
    - Segmental camshaft design
    - Simplified parts spectrum by using single-pipe exhaust gas
    - Engine block free from cooling water
  • State-of-art material ensures long life time

Ease Of Maintenance

  • Smart maintenance solutions allow an easy component accessibility
  • Large inspection openings afford an easy serviceability to core engine internals
  • Core engine components designed for reconditioning and reuse
  • Short maintenance times enable high availability
  • No engine removal necessary for maintenance and overhauls

Fuel

  • Liquid: Light fuel oil (LFO), crude oil and heavy fuel oil (HFO) with fuel quality up to 700 cSt/50°C according to CIMAC H55/K55
  • Dual:
    - Light fuel oil (LFO), crude oil and heavy fuel oil (HFO) with fuel quality up to 700 cSt/50°C according to CIMAC H55/K55
    - Natural gas with methane number > 80 and lower heating value of 28MJ/Nm3
  • Gaseous: Natural gas with methane number > 80 and lower heating value of 31.5 MJ/Nm3

Emissions

  • World bank emission certification (Stage 2)
  • Technische Anleitung (TA) Luft (only gas)
  • Post-emission treatment systems for lower emission requirements available

Expertise & Experience

  • Assistance for planning - delivery - commissioning - operation and service)
  • Expertise and experience for solutions to maximize benefits, e.g. combine heat and power systems (CHP)

World Wide Product Support

  • With nearly 200 Cat dealers we are at home around the globe
  • Factory-trained technicians, original parts and support are never out of reach
  • Long term service agreements offer back-to-back services from preventive maintenance, scheduled maintenance to full operation and maintenance of your asset

Application Centre

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organises it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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