3512C (HD) OFFSHORE WELL STIMULATION ENGINE
The 3512C (HD) offshore engine for well stimulation operations was specifically developed to operate in harsh environments offshore while meeting the highest standards in performance, durability, reliability, and emissions. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. 3512C (HD) offshore engines, with ratings: 1678-1864 bkW (2250-2500 bhp) @ 1900 rpm meet IMO Tier II and U.S. EPA Marine Tier 2 emission standards.
general specifications
Minimum Rating1678.0 bkW
Maximum Rating1864.0 bkW
AspirationTurbocharged-Aftercooled
Displacement3596.0 L
Flywheel and Flywheel HousingSAE No. 0
Flywheel Teeth151
Stroke215.0 mm
Bore170.0 mm


emissions
EmissionsIMO Tier II and EPA Marine Tier 2
dimensions
Length2880.0 mm
Width1630.0 mm
Height2185.0 mm
Weight6416.0 kg
3512C HD (Offshore) STANDARD EQUIPMENT
- air inlet system
Heavy-duty air cleaners (dual element/service indicator)
Four center-mounted turbochargers - control system
Cat® ADEM A3 ECU — LH
With electronic fuel injector fuel system (10 amp DC power required to drive electronic engine control module) - cooling system
Separate Circuit SCAC system
Torque converter connections
Thermostats and housing, jacket and separate circuit water pump, gear-driven centrifugal - exhaust system
Land well service engine
Exhaust manifold, dry, slip joint with stainless steel wire seal
Four turbochargers with watercooled bearings (center mounted)
Exhaust outlet, dual 203 mm (8 in) round flange - flywheel and flywheel housings
Flywheel, SAE No. 0, 151 teeth
Flywheel housing, SAE No. 0 - fuel system
Primary fuel filter
Fuel priming pump
Fuel filter — RH spin-on type
Fuel transfer pump
Electronically controlled unit injectors - instrumentation
No standard instrumentation
Optional, remote instrumentation available
Service meter - lube system
Crankcase breather — top mounted
Oil cooler
Oil filler and dipstick — LH
Oil pump
Oil filter — RH spin-on type
Rear sump oil pan — 250-hour change interval
Oil pan drain valve — 1" NPT female connection
Fumes disposal
Scavenger pump - mounting system
Trunion front support - power takeoffs
Accessory drive — lower LH
Front housing — two-sided - protection system
ADEM A3 ECU system to provide customer programmable engine deration strategies to protect against adverse operating conditions
Emergency stop logic inputs provided at 40-pin customer interface connection
Dual air inlet shutoff
Oil pressure monitor - general
General
Vibration damper and guard
Lifting eyes
3512C HD (Offshore) OPTIONS
- charging system
Charging alternators - control system
Local speed throttle control
Throttle position sensors
Governor conversion - cooling system
Coolant regulator conversion
Water level switch gauge
Coolant level sensors and coolant conditioner - exhaust system
Flexible exhaust fitting
Elbows, flange, exhaust adapters
Manifold and mufflers - fuel systems
Flexible fuel lines
Water/fuel separator
Fuel level switch - instrumentation
Remote panel display and remote cylinder temperature display
Gauges and instrument panels - lube system
Oil pans and filters
Deep sump oil pan and front sump pan - power takeoffs
Front crankshaft adapter
Flywheel stub shaft - protection system
Sensors
Shutoff controls - starting system
Air starting motors
Electric starting motors
Hydraulic starter
Ether starting aids
Battery sets — 24V
Battery cable and battery rack