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CAT S4KT Diesel Engine

CAT S4KT Diesel EnginePRODUCT DESCRIPTION Model: S4KTCategory: diesel Engine Brand: SWAFLYPlace of Origin: AmericaCondition: Original NewWarranty: 1 yearMOQ: 1 pcsProduction Capacity: 1000pcs /MonthSt

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Product Detail

CAT S4KT Diesel Engine

PRODUCT DESCRIPTION
Model: S4KT		Category: diesel Engine
Brand: SWAFLY		Place of Origin: America
Condition: Original New		Warranty: 1 year
MOQ: 1 pcs		Production Capacity: 1000pcs /Month
Standard or Nonstandard: Standard		Payment Term: L/C,T/T, Western Union, Trade assurance
Delivery Time: 1-3 days (depend on order)		Means of Transport: By Sea, Air or DHL/FEDEX/TNT/EMS
Guarantee: We will check the engine assy and send detail pictures to buyer to confirm before shipping.

Technical Overview of CAT S4KT Diesel Engine

The CAT S4KT Diesel Engine is a high - performance power unit renowned for its reliability, efficiency, and versatility across a wide range of applications.

1. Engine Architecture

1.1 Cylinder Configuration

The S4KT is a 4 - cylinder engine. This configuration offers a good balance between power output and compactness. Four cylinders provide a relatively smooth power delivery compared to engines with fewer cylinders, while the compact design allows for easy installation in various types of machinery, such as construction equipment, generators, and small - to - medium - sized industrial applications.

1.2 Displacement

It has a displacement of 4.4 liters. The relatively large displacement contributes to its ability to generate substantial torque. Torque is crucial for applications that require high - pulling power, like in earth - moving equipment where the engine needs to overcome significant resistance when digging or hauling heavy loads.

2. Combustion System

2.1 Turbocharging and Aftercooling

The engine is equipped with a turbocharger. The turbocharger compresses the incoming air, forcing more air into the combustion chamber. This increases the air density, allowing for a greater amount of fuel to be burned efficiently. As a result, the engine can produce more power without a significant increase in engine size.

In addition, an aftercooler is incorporated. The aftercooler cools the compressed air from the turbocharger before it enters the combustion chamber. Cooling the air increases its density further, enhancing combustion efficiency. This not only boosts power but also helps in reducing emissions by ensuring more complete combustion of the fuel.

2.2 Fuel Injection System

The S4KT utilizes an advanced fuel injection system. It is likely to be a high - pressure common - rail fuel injection system. In a common - rail system, fuel is stored in a high - pressure rail and then injected into each cylinder at precisely controlled times and pressures. This allows for better atomization of the fuel, which in turn leads to more efficient combustion. Precise fuel injection also enables the engine to meet stringent emission regulations while maintaining high performance.

3. Power Output and Performance

3.1 Horsepower and Torque

The engine offers an output power ranging from 78 to 104 horsepower. This power range makes it suitable for a variety of applications, from powering small generators that provide electricity for remote work sites to being the prime mover in compact construction equipment like mini - excavators and skid - steer loaders.

The torque output of the S4KT is substantial, which is essential for applications that require high - low - end pulling power. Torque allows the engine to start moving heavy loads from a standstill and maintain a steady operation under varying load conditions.

3.2 Efficiency

Thanks to its advanced combustion system and fuel injection technology, the S4KT demonstrates good fuel efficiency. The efficient combustion process ensures that a large portion of the fuel's energy is converted into useful work, reducing fuel consumption and operating costs. This is particularly important for applications where the engine may operate for long hours, such as in continuous - running generators or industrial machinery.

4. Cooling and Lubrication Systems

4.1 Cooling System

A reliable cooling system is in place to maintain the engine's optimal operating temperature. It typically consists of a radiator, water pump, and thermostat. The water pump circulates coolant through the engine block and cylinder head, absorbing heat generated during combustion. The radiator then dissipates this heat to the surrounding air. The thermostat regulates the flow of coolant, ensuring that the engine warms up quickly when starting and remains at a constant temperature during operation. In some applications, additional cooling features like oil coolers may also be present to cool the engine oil, which is crucial for maintaining proper lubrication and engine performance.

4.2 Lubrication System

The lubrication system of the S4KT is designed to protect engine components from wear. It includes an oil pump that circulates oil through various engine parts, such as the crankshaft, camshaft, and piston rings. The oil forms a protective film between moving parts, reducing friction and heat generation. An oil filter is also an integral part of the system, removing impurities from the oil to prevent damage to engine components. Regular oil changes are essential to maintain the effectiveness of the lubrication system and ensure the long - term reliability of the engine.

5. Emission Control

The CAT S4KT Diesel Engine is designed to meet modern emission standards. In addition to the efficient combustion system that helps reduce emissions by promoting complete fuel combustion, it may also be equipped with after - treatment devices. These could include diesel particulate filters (DPF) to trap and remove particulate matter from the exhaust gases, and selective catalytic reduction (SCR) systems to reduce nitrogen oxide emissions. These emission control technologies ensure that the engine operates in an environmentally friendly manner while still delivering high - performance operation.

SWAFLY MACHINERY CO., LIMITED
China's Leading Supplier of Construction, Mining & Agricultural Machinery Parts

Company Overview
Founded in 2009, SWAFLY Machinery has specialized in manufacturing and supplying high-quality excavator parts, mining machinery parts, and agricultural tractor parts for over 15 years. Leveraging deep industry expertise and technological innovation, we have become a trusted one-stop solution provider for global customers seeking reliable, cost-effective machinery components.

Core Business & Product Portfolio

Full-Range Machinery Engines & Parts

Covered Brands: KUBOTA, Yanmar, Perkins, Caterpillar, Cummins, Komatsu, Isuzu, Mitsubishi, Volvo Penta, Benz, Deutz

Offerings: OEM-compliant engines and a comprehensive range of after-market parts, all rigorously tested to ensure performance, durability, and compatibility with original equipment.

Specialized Agricultural Machinery Solutions

Focus on KUBOTA & Bobcat agricultural tractors and harvesters:
• Engine assemblies and full-series components;
• Customized parts solutions tailored to diverse farming applications, enhancing operational efficiency.

Heavy-Duty Mining Machinery Components

Specialization in 100-800 ton class mining equipment for brands like HITACHI, CATERPILLAR, and KOMATSU:
• Key hydraulic system components: main hydraulic pumps, travel motors, final drives, reduction gearboxes, MCV main valves;
• Rapid development of cost-effective OEM alternatives and high-quality after-market products, supported by a full suite of after-sales services for global clients.

Our Commitment
Dedicated to excellence in quality, innovation, and customer service, we strive to deliver superior machinery parts that drive productivity and sustainability across construction, mining, and agriculture industries worldwide.

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Product Detail

CAT S4KT Diesel Engine

PRODUCT DESCRIPTION
Model: S4KT		Category: diesel Engine
Brand: SWAFLY		Place of Origin: America
Condition: Original New		Warranty: 1 year
MOQ: 1 pcs		Production Capacity: 1000pcs /Month
Standard or Nonstandard: Standard		Payment Term: L/C,T/T, Western Union, Trade assurance
Delivery Time: 1-3 days (depend on order)		Means of Transport: By Sea, Air or DHL/FEDEX/TNT/EMS
Guarantee: We will check the engine assy and send detail pictures to buyer to confirm before shipping.

Technical Overview of CAT S4KT Diesel Engine

The CAT S4KT Diesel Engine is a high - performance power unit renowned for its reliability, efficiency, and versatility across a wide range of applications.

1. Engine Architecture

1.1 Cylinder Configuration

The S4KT is a 4 - cylinder engine. This configuration offers a good balance between power output and compactness. Four cylinders provide a relatively smooth power delivery compared to engines with fewer cylinders, while the compact design allows for easy installation in various types of machinery, such as construction equipment, generators, and small - to - medium - sized industrial applications.

1.2 Displacement

It has a displacement of 4.4 liters. The relatively large displacement contributes to its ability to generate substantial torque. Torque is crucial for applications that require high - pulling power, like in earth - moving equipment where the engine needs to overcome significant resistance when digging or hauling heavy loads.

2. Combustion System

2.1 Turbocharging and Aftercooling

The engine is equipped with a turbocharger. The turbocharger compresses the incoming air, forcing more air into the combustion chamber. This increases the air density, allowing for a greater amount of fuel to be burned efficiently. As a result, the engine can produce more power without a significant increase in engine size.

In addition, an aftercooler is incorporated. The aftercooler cools the compressed air from the turbocharger before it enters the combustion chamber. Cooling the air increases its density further, enhancing combustion efficiency. This not only boosts power but also helps in reducing emissions by ensuring more complete combustion of the fuel.

2.2 Fuel Injection System

The S4KT utilizes an advanced fuel injection system. It is likely to be a high - pressure common - rail fuel injection system. In a common - rail system, fuel is stored in a high - pressure rail and then injected into each cylinder at precisely controlled times and pressures. This allows for better atomization of the fuel, which in turn leads to more efficient combustion. Precise fuel injection also enables the engine to meet stringent emission regulations while maintaining high performance.

3. Power Output and Performance

3.1 Horsepower and Torque

The engine offers an output power ranging from 78 to 104 horsepower. This power range makes it suitable for a variety of applications, from powering small generators that provide electricity for remote work sites to being the prime mover in compact construction equipment like mini - excavators and skid - steer loaders.

The torque output of the S4KT is substantial, which is essential for applications that require high - low - end pulling power. Torque allows the engine to start moving heavy loads from a standstill and maintain a steady operation under varying load conditions.

3.2 Efficiency

Thanks to its advanced combustion system and fuel injection technology, the S4KT demonstrates good fuel efficiency. The efficient combustion process ensures that a large portion of the fuel's energy is converted into useful work, reducing fuel consumption and operating costs. This is particularly important for applications where the engine may operate for long hours, such as in continuous - running generators or industrial machinery.

4. Cooling and Lubrication Systems

4.1 Cooling System

A reliable cooling system is in place to maintain the engine's optimal operating temperature. It typically consists of a radiator, water pump, and thermostat. The water pump circulates coolant through the engine block and cylinder head, absorbing heat generated during combustion. The radiator then dissipates this heat to the surrounding air. The thermostat regulates the flow of coolant, ensuring that the engine warms up quickly when starting and remains at a constant temperature during operation. In some applications, additional cooling features like oil coolers may also be present to cool the engine oil, which is crucial for maintaining proper lubrication and engine performance.

4.2 Lubrication System

The lubrication system of the S4KT is designed to protect engine components from wear. It includes an oil pump that circulates oil through various engine parts, such as the crankshaft, camshaft, and piston rings. The oil forms a protective film between moving parts, reducing friction and heat generation. An oil filter is also an integral part of the system, removing impurities from the oil to prevent damage to engine components. Regular oil changes are essential to maintain the effectiveness of the lubrication system and ensure the long - term reliability of the engine.

5. Emission Control

The CAT S4KT Diesel Engine is designed to meet modern emission standards. In addition to the efficient combustion system that helps reduce emissions by promoting complete fuel combustion, it may also be equipped with after - treatment devices. These could include diesel particulate filters (DPF) to trap and remove particulate matter from the exhaust gases, and selective catalytic reduction (SCR) systems to reduce nitrogen oxide emissions. These emission control technologies ensure that the engine operates in an environmentally friendly manner while still delivering high - performance operation.

S4KT-engine-6

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SWAFLY MACHINERY CO., LIMITED
China's Leading Supplier of Construction, Mining & Agricultural Machinery Parts

Core Business & Product Portfolio

Full-Range Machinery Engines & Parts

Covered Brands: KUBOTA, Yanmar, Perkins, Caterpillar, Cummins, Komatsu, Isuzu, Mitsubishi, Volvo Penta, Benz, Deutz

Offerings: OEM-compliant engines and a comprehensive range of after-market parts, all rigorously tested to ensure performance, durability, and compatibility with original equipment.

Specialized Agricultural Machinery Solutions

Heavy-Duty Mining Machinery Components

SWAFLY Poster

2023年SWAFLY 国外展会

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