Caterpillar 3512B Marine Auxiliary Engine

The Caterpillar 3512B marine auxiliary engine is a V-12, 4-Stroke-Cycle-Diesel engine with a 170.0 mm (6.7 in) bore, 190.0 mm (7.5 in) stroke and 51.8 L (3158 in³) displacement.
The Caterpillar C3512B marine auxiliary engine is rated at 1800 RPM and rated at 1910 BHP (1424 bkW).
Caterpillar 3512B marine auxiliary engine complies with US EPA Tier 4 / IMO III air intake is turbocharged After cooling.
As part of EMAC, Caterpillar Marine Auxiliary also offers high performance propulsion and handling solutions Engine, engine provides electronic control and mechanical, fuel common rail system for customers to choose, we provide full life cycle service for all customers, from design to ship power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from Troubleshooting to Overhaul Technical Support.

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Advantages of 3512B Marine Auxiliary Engine

1. Utilizes SCR Technology to enable U.S. EPA Tier 4 Final emission regulations compliance while lowering operational costs.
2. Utilizes closed loop air assisted DEF dosing control strategy that delivers : Highest efficiency mixing and control to lower operational costs, Extends emissions useful life, Ensures compliance, Flexible to urea quality.
3. Advanced engine combustion design process utilizing optimum configurations and cylinder geometry for maximum engine efficiency.
4. Enhanced control of fuel injection optimized through crank timing and the latest A5 ECM technology.
5. Optimal fuel injector nozzle geometry and electronic injection control for improved fuel delivery.
6. Strengthened cylinder heads and valves for increased durability and peak cylinder pressure capability resulting in higher engine duty cycle capability.
7. Industry-leading warranty coverage for factory packaged components.

Technical Specifications

Basic Introduction of 3512B Marine Auxiliary Engine

Engine Model:	3512B
Engine Type:	V-12, 4-Stroke-Cycle-Diesel
Displacement:	51.8 L
Rated Speed:	1800 RPM
Aspiration Method:	Turbocharged Aftercooled (TA)
Emission Standard:	N/A
*BoreStorke:**	170 mm (6.7 in)*190 mm (7.5 in)
*Packing Size(LWH):*	3038.6 * 1988.0 * 2073.8 mm
Weight , Net Dry:	6532 kg (14400 lb)
Lead Time:	15-30 Working Days
Payment Terms:	T/T ,L/C

Engine Model	Rated Power	Aspiration	Fuel system type
3512B	1424 bkW (1910 BHP) @ 1800 RPM	Turbocharged Aftercooled (TA)	Electronical Governor
3512E	1789 bkW (2400 BHP ) @ 1800 RPM	Turbocharged Aftercooled (TA)	Electronical Governor
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General Engine Specifications of Caterpillar 3512B Marine Auxiliary Engine
Basic Engine Specifications	V-12, 4-Stroke-Cycle-Diesel	Governor	Electronic
Displacement	51.8 L (3158 in³)	Rotation (From Flywheel End)	Counterclockwise
Rated Engine Speed	1800 RPM	Length	3038 mm (119.6 in)
Height	1988 mm (78.3 in)	Width	1988 mm (78.3 in)
Aspiration	Turbocharged-Aftercooled	Weight, Net Dry (Max)	6532 kg (14400 lb)
Bore	170 mm (6.7 in)	Stroke	190 mm (7.5 in)
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Standard of Caterpillar 3512B Marine Auxiliary Engine
AIR INLET SYSTEM	Corrosion-resistant Aftercooler Core	GENERAL	Vibration Damper and Guard
Lube SYSTEM	Gear-type Oil Pump, Deep Sump Oil Pan	COOLING SYSTEM	Auxiliary Fresh Water Pump
EXHAUST SYSTEM	Dual Turbochargers	FUEL SYSTEM	Duplex Fuel and Oil Filtration
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System of Caterpillar 3512B Marine Auxiliary Engine
Air System	Combustion Air Inlet System
	Intake Combustion Air Flow	5.3 m³/min (71 bkW)
	Intake Combustion Air Flow	187 cfm (71 bkW)
	Intake Combustion Air Temperature Up to	50 °C (122 °F)
	Engine Room Ventilation Air
	Heat Rejection to Atmosphere	8.0 kW (71 bkW)
	Heat Rejection to Atmosphere	455 BTU/min (95 BHP)

Fuel System	Fuel Rate	237 g/bkW-hr (63.4 gal/hr)
	Fuel Rate	16.9 kg/hr (63.4 gal/hr)
	Fuel Flow Transfer Pump	4.1 L/min (71 bkW)
	Fuel Pressure Static Head	± 2.8 m (± 9.1 ft)
	Fuel Supply Line Restriction (Max)	10 kPa (2.9 in Hg) (1.45 PSI)
	Fuel Temperature Transfer Pump in (Max)	60 °C (140°F)
	Fuel Return Line Restriction (Max)	10 kPa (2.9 in Hg) (1.45 PSI)
	Fuel Supply / Return Connections	11 / 16 in O ring Face Seal (ORFS)
	Diesel Fuel Grade	ISO-F-DMX/ISO-F-DMA/ISO

Exhaust System	Exhaust Gas Flow (Total)	6.60 kg/min
	Exhaust Stack Temperature	455 °C
	Exhaust Stack Temperature	851 °F
	Engine Exhaust Connection	63 mm (2.5 in) ID, 6 x 9 mm (0.35 in) Holes on 88.9 mm (3.5 in) PCD
	Max Allowable System Backpressure	15 kPa (60 in H2O)

Lube System	Sump Type	Isolated
	Sump Capacity (Max)	11 L (5.55 gal)
	Sump Capacity (Min)	9 L (4.62 gal)
	Oil Change Interval	500 Hr
	Max Installation Angle (Any Direction)	25 Degrees
	Max Continuous Operation Angle (Any Direction)	25 Degrees
	Max Intermittent Operation Angle (Any Direction)	CI-4 10W30 or 15W40

Starting System	Electrical Starting Motor	24 VDC, 12 VDC
Starting System	Cold Starting	800 CCA [at -15 °C (5 °F) Ambient Temperature]

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Standard of Caterpillar 3512B Marine Auxiliary Engine
Fuel System	1. Fuel Transfer Pump	Exhuast System	1. Exhuast Manifold
	2. High-Pressure Fuel Pump		2. Turbocharger
	3. Fuel Filter		3. Exhuast Elbow

Air Intake System	1. Air Intake Manifold	Starting System	1. Starter Motor
	2. N/A		2. Starter Rely

Cooling System	1. Water Pump	Power Output System	1. Flywheel
	2. Engine Fan		2. Standard Flywheel Housing
	3. Standard Radiator		3. N/A

Lubricating System	1. Oil Pump	Charging System	1. Charging Alternator
	2. Oil Filter		2. N/A

Engine Shut-Down System	1. Engine Fuel Shut-Off Solenoidr	Engine Mounting System	1. Engine Mouting Bracket

Engine Auiliary Accessories	1. Air Compressor
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Optional Accessories of Caterpillar 3512B Marine Auxiliary Engine
Air Intake System	1. Air Intake Pre-Heater	Exhuast System	1. Muffler & Bellows
	2. Air Intake Shut-Off Valve		2. Flame Trap
	3. Air Filter		3. Spark Arrestor Type Muffler & Bellows
	4. Air Intake Pre-Filter		4. Dpf System
	5. Air Filter Alarm System		5. N/A

Fuel System	1. Coarse Filter	Lubricating System	1. Oil Pre-Heater
	2. Fuel Pre-Heater		2. N/A

Starting System	1. Manual Magnetic DC Contactor	Cooling System	1. Silent Type Radiator
	2. Dual Ears Flywheel Housing		2. Plateau Radiator
	3. Spring Starter Motor		3. Salt-Spray Resistant Radiator
	4. Air Starter Motor		4. Coolant Pre-Heater
	5. Hydraulic Starter Motor		5. Jacket Water Heater
	6. Manual Magnetic DC Contactor		6. N/A

Engine Auiliary Accessories	1. Hydraulic Oil Pump	Control System	1. Can Add Engine Monitoring System, Contro System with Wiring Harness.
	2. Air Conditioner Compressor		2. Can Add Self-Protection System That Integrated with Alarm System.

Power Output System	1. Clutch	Engine Mounting System	1. Shock Absorber Pad

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Modifiable Components of Caterpillar 3512B Marine Auxiliary Engine
Air Intake System	1. Installation Position of Air Filter	Charging System	1. 12 V Charging Alternator for 12 V Electric System
	2. Upgrade to Heavy-Duty Type Air Fitler		2. Explosion-Proof Charging Alternator
	3. N/A		3. Upgrading to Specified Brand and Speicifications of Charging Alternator

Exhuast System	1. Water-Cooled Exhuast Manifold	Lubricating System	1. Oil Pan Position
	2. Water-Cooled Turbocharger		2. Number of Dipstick
	3. Can Modify Installation Position and Direction of Turbocharger		3. Position of Dipstick Can Choose From 6 Positions
	4. N/A		4. Can Modify Oil Filter to Be Remote Installation

Engine Shut-Down System	1. 12 V Solenoid for 12 V Electric System	Starting System	1. Upgrading to Specified Brand and Speicifications of Starter Motor
	2. Explosion-Proof Solenoid		2. 12 V Starter Motor for 12 V Electric System

Fuel System	1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer Pump and Fuel Pre-Hearter	Engine Auiliary Accessories	1. All of Auxiliary System Can Choose Specified Brands and Specifications
	2. N/A		2. Additional Auxiliary Systems Can Be Added for Special Applications

Cooling System	1. Can Modify Engine Fan Into Blower Fan or Suction Fan	Power Output System	1. Can Modify Size of Flywheel Housing and Flywheel
	2. Can Modify Central Position of Engine Cooling Fan		2. Dual-Ear Flywheel Housing (for Twin-Starter System)
	3. Can Choose Type of Engine Fan From Mechanical Type or Electric Type		3. Some of Models Can Modify Flywheel Housing Into PTO Integrated Type
	4. N/A		4. Engine Have Connecting Port of PTOs, That Able to Provide Power Output

Engine Mounting System	1. Can Modify Engine Mouting Bracket
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