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Cummins Engine NTA855-P450 for Dredger

  • Cummins Engine NTA855-P450 for Dredger
  • Cummins Engine NTA855-P450 for Dredger
  • Cummins Engine NTA855-P450 for Dredger
  • Cummins Engine NTA855-P450 for Dredger

Cummins Engine NTA855-P450 for Dredger

    Certificate: ISO9001:14001

Basic Info

Model No.: NTA855-P450

Product Description

Product Name: Cummins Pump Engine

Engine Model:NTA855-P450

Nt855 DataNt855 Drawings

Technical Specification

Engine Model


Fuel Consumption


Rating Type


Fuel Flow


Rated Power

450hp / 336kW

Manifold Pressure


Rated Speed


Intake Air Flow

3597 cfm

Peak Torque

1385 NHm

Heat Rejection

4464 BTU/min/78kW



Size-Engine Only




Weight (Dry)


Compression Ratio


Idle Speed Setting


Piston Speed

1791 ft/min

Idle Speed Variation




High Idle Speed Min




High Idle Speed Max


Fuel System

PT pump

Thermostat Operating


Optional Configuration

According to the type of cooling( Water-cooled, Air-cooled.)

Configuration: Radiator,Fan / Heat Exchanger(Keel cooling), Expansion tank, Sea water pump, Control system, Remote control system.

Cummins Features and Benefits

Crankshaft and Rod

Robust and fully balanced crankshaft design for a more steadily rotation and higher strength. Steel piston crown with oil gallery and aluminum skirts for better durability and low oil consumption.

Fuel System

Cummins unique PT with fixture and Step Timing control for precise fuel injection make the fuel injection pressure above 120Mpa, which leads to an excellent fuel consumption rate and emission performance. Check valve in fuel tube improve reliability.

Lubrication System

Dual spin-on filter can separate impurity above 10um effectively. Low pressure(220-310Kpa) and steady temperature(100-120°C)system can reduce auxiliary power wasting of the lubricating oil pump.

Cooling System

Great flux water pump and special channel design provide effective cooling. Spin in water filter makes the coolant clean and keeps it in normal acidity.

Exhaust System(After-cooled)

Advanced Holset turbocharger and water-air after cooler technology, pulse exhaust manifold reduce exhaust temperature, provide excellence fuel consumption and emission performance.

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Chongqing TC Machinery Co.,Ltd

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Chongqing TC Machinery Co.,Ltd is a comprehensive company based on diesel engines, integrating the production, sales and service of marine engines, diesel generators, fire Pump engines, construction engines, mining truck engines, diesel engine supporting power, Accessories and other related products. Our company has independent import and export rights. We have established a good cooperative relation with customers all over the world. Adhering to the principle of "quality first, reputation first", our company hopes to create a better tomorrow with domestic and foreign customers hand in hand!

We are official Authorized special dealer of Cummins, not only price competitive, but also provide customers Genuine engines and strong technical supports.

The Cummins engine model we can supply: KTA50, KTA38, KTA19, M11, NTA855, KTTA19, QSK38, QSK19, QSM11,QSN, QSB, ISX, ISL, 6CT, 6BT, 4BT.

Not only we are familiar with technical aspects of the engine itself , we also have a comprehensive understanding of the additional requirements surrounding the engine , Repowering will often require Structural and electrical modifications in the engine room and elsewhere on the ship. our experience technical have been trained and have the professional knowledge and equipment to efficiently service your engine.

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Company Info

  • Company Name: Chongqing TC Machinery Co.,Ltd
  • Representative: Yang
  • Product/Service: Cummins Engine , Cummins Parts , Cummins Marine Generator , Cummins Marine Engine , Cummins Engines , Onan Marine Generator
  • Capital (Million US $): 10,000,000.00 RMB
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 51% - 60%
  • Total Annual Purchase Volume (Million US $): Below US$1 Million
  • No. of Production Lines: Above 5
  • No. of R&D Staff: Above 100 People
  • No. of QC Staff: Above 100 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 5,000-10,000 square meters
  • Factory Location: Jingkou Industrial area, Shapingba District, Chongqing, China
  • Contact Person: Ms. Grace
  • Tel: 86-13594367882
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