The Cummins NT855 engine is a powerhouse renowned for its durability and performance, making it a vital component in various heavy-duty applications. In China, where industrial growth is rapid, understanding the specifications and capabilities of the NT855 is crucial for businesses and operators alike. This guide delves into the engine’s technical details, performance metrics, and applications, providing valuable insights for informed decision-making.
Readers can expect a comprehensive overview of the NT855’s specifications, including its design features, power output, and fuel efficiency. We will explore its adaptability across different sectors, from construction to transportation, highlighting why it remains a preferred choice among industry professionals. Additionally, we will discuss maintenance practices and common challenges, ensuring that operators can maximize the engine’s lifespan and performance.
By the end of this guide, readers will have a thorough understanding of the Cummins NT855 engine, empowering them to make strategic choices for their operations. Whether you are a seasoned engineer or a newcomer to the industry, this resource will equip you with the knowledge needed to leverage the full potential of this remarkable engine.
Comprehensive Guide to Cummins NT855 Specifications
The Cummins NT855 engine is a robust and reliable diesel engine widely used in various applications, including marine propulsion, industrial machinery, and power generation. Known for its durability and efficiency, the NT855 has become a preferred choice for many operators. This guide will delve into the technical features, types, and specifications of the Cummins NT855 engine, providing a thorough understanding of its capabilities.
Technical Features of the Cummins NT855
The NT855 engine boasts several technical features that enhance its performance and reliability. Below is a comparison table highlighting its key specifications:
| Feature | Specification |
|---|---|
| Engine Type | 4-Cycle, Inline, 6-Cylinder |
| Aspiration | Turbocharged |
| Bore x Stroke | 5.5 in x 6.0 in (140 mm x 152 mm) |
| Displacement | 855 in³ (14 L) |
| Compression Ratio | 15.0:1 |
| Maximum Power | 310 HP (231 kW) at 1500 r/min |
| Standby Power | 340 HP (254 kW) at 1500 r/min |
| Dry Weight | 2800 lb (1270 kg) |
| Wet Weight | 2900 lb (1320 kg) |
| Fuel System | Direct Injection |
| Lubrication System | Spin-on Full Flow Filter |
| Cooling System | Heat Exchanger or Radiator |
| Maximum Allowable Back Pressure | 3.0 in.Hg (10 kPa) |
| Maximum Coolant Temperature | 205°F (96°C) |
The NT855 engine is designed to operate efficiently under various conditions, making it suitable for demanding applications. Its turbocharged design ensures optimal performance, while the robust construction guarantees longevity.
Types of Cummins NT855 Engines
The Cummins NT855 engine comes in different configurations to meet specific application needs. Below is a comparison table of the various types of NT855 engines:
| Engine Model | Configuration | Power Output (HP) | Applications |
|---|---|---|---|
| NT855-GA | Inline, 6-Cylinder | 310 HP (231 kW) | Industrial, Marine |
| NT855-M | Inline, 6-Cylinder | 280-480 HP | Mining, Construction |
| NTA855 | Inline, 6-Cylinder | 300 HP (224 kW) | Marine Propulsion |
| NT855-DM | Inline, 6-Cylinder | 321 HP (240 kW) | Prime Power Generation |
Each type of NT855 engine is tailored for specific applications, ensuring that users can select the most suitable option for their needs. The versatility of the NT855 series makes it a popular choice across various industries.
Performance and Efficiency
The Cummins NT855 engine is engineered for high performance and efficiency. It features a direct injection fuel system that optimizes combustion, resulting in lower fuel consumption and reduced emissions. The engine’s design allows for a high power-to-weight ratio, making it suitable for applications requiring both power and mobility.
The NT855 engine operates efficiently at various speeds, with a maximum no-load governed speed of 1800 r/min and a minimum crankshaft rotation for cold starts of 150 r/min. This flexibility ensures that the engine can adapt to different operational demands.
Cooling and Lubrication Systems
The cooling system of the NT855 engine is designed to maintain optimal operating temperatures, ensuring reliability and performance. It can be equipped with either a heat exchanger or a radiator, depending on the application. The maximum coolant temperature is set at 205°F (96°C), with a coolant capacity of 5.5 U.S. gallons (20.8 L) for the engine alone.
The lubrication system features a spin-on full-flow filter, which simplifies maintenance and enhances engine longevity. The oil capacity ranges from 7.5 to 9.5 U.S. gallons (28.4 to 36.0 L), depending on the configuration.
Applications of the Cummins NT855
The NT855 engine is widely used in various applications, including:
– Marine Propulsion: The NT855 is a popular choice for marine vessels due to its reliability and power output. It is often used in commercial fishing boats and cargo ships.
– Industrial Machinery: The engine powers various industrial machines, including generators and construction equipment, providing the necessary torque and power for demanding tasks.
– Mining Operations: The NT855’s robust design makes it suitable for mining applications, where durability and performance are critical.
Conclusion
The Cummins NT855 engine is a versatile and powerful option for various applications, from marine propulsion to industrial machinery. Its technical features, coupled with its different configurations, make it a reliable choice for operators seeking efficiency and durability. With a proven track record in demanding environments, the NT855 continues to be a preferred engine for many industries.
FAQs
1. What is the power output of the Cummins NT855 engine?
The Cummins NT855 engine has a maximum power output of 310 HP (231 kW) at 1500 r/min and standby power of 340 HP (254 kW).
2. What types of applications can the NT855 engine be used for?
The NT855 engine is suitable for marine propulsion, industrial machinery, and mining operations, among other applications.
3. How does the cooling system of the NT855 work?
The NT855 engine can be equipped with either a heat exchanger or a radiator to maintain optimal operating temperatures, ensuring reliability and performance.
4. What is the displacement of the Cummins NT855 engine?
The displacement of the Cummins NT855 engine is 855 in³ (14 L).
5. Where can I find more information about the Cummins NT855 engine?
You can find more information on websites such as www.hosempower.com, www.scribd.com, www.cummins.com, and mart.cummins.com.