When it comes to heavy-duty excavation and mining projects, the Hitachi EX3600 Excavator stands out as a powerful and reliable machine. With its robust engine, advanced hydraulic system, and impressive performance capabilities, the EX3600 is designed to handle some of the toughest tasks in the industry.

However, as with any piece of heavy machinery, there are opportunities to enhance its performance and efficiency. One such opportunity is the consideration of replacing the stock exhaust system with an aftermarket option.

In this article, we will explore the comprehensive specifications of the Hitachi EX3600 and evaluate whether investing in an aftermarket exhaust system could be beneficial for your specific needs.

Hitachi EX3600 Excavator Full Specs

The Hitachi EX3600 is a formidable piece of heavy machinery designed for large-scale excavation and mining operations. Known for its power, efficiency, and durability, this excavator is a popular choice for demanding projects in various industries.

Here’s an in-depth look at the full specifications of the Hitachi EX3600 Excavator, covering everything from its engine performance to its operational capabilities.

Engine Specifications

At the heart of the Hitachi EX3600 is the robust Cummins QSKTA60-CE (FCO, T4F/EU Stage V) engine. This engine is a 6-cylinder, water-cooled, 4-stroke turbocharged diesel engine that provides exceptional power and reliability.

The engine’s net output is approximately 1944 horsepower (1450 kW) at 1,800 rpm, making it suitable for the most challenging excavation tasks. The engine displacement is about 60.0 L (3,661 cu. in.), which ensures the machine can handle heavy workloads with ease.

Hydraulic System

The EX3600’s hydraulic system is designed to deliver outstanding performance in various excavation and material handling tasks. It features a hydraulic pump system with a maximum flow rate of 8 x 500 L/min (132 gal./ min). The system includes a triple pump configuration that provides excellent hydraulic pressure and flow for the bucket, arm, and boom functions.

The main relief valve pressure is set at approximately 29.4 MPa (300 kgf/cm2, 4 264 psi), which supports high-efficiency operations and smooth, precise movements.

Dimensions and Weight

The EX3600 is a large and heavy excavator, with substantial dimensions that enable it to tackle large-scale projects. The operating weight of the machine is around 367,000 kg, which contributes to its stability and digging power. The overall length is approximately 14.87 meters (48 feet 9 inches), while the overall width is about 9.42 meters (30 feet 11 inches). The overall height reaches around 7.87 meters (25 feet 8 inches), allowing the machine to operate effectively in various environments.

Performance and Capabilities

The EX3600 is known for its impressive performance metrics. It has a maximum digging depth of 7.05 meters (23 feet 2 inches) and a maximum digging reach of 11.29 meters (37 feet 1 inch). The bucket capacity ranges from 1.4 to 2.5 cubic meters (1.8 to 3.3 cubic yards), depending on the bucket configuration used. The bucket breakout force is approximately 30,000 kg (66,139 lbs), and the arm breakout force is around 24,500 kg (54,013 lbs), making it highly effective for breaking and moving heavy materials.

Operating Features

The EX3600 is equipped with advanced features to enhance operator comfort and efficiency. It comes with a spacious and ergonomic cab designed to reduce operator fatigue and increase productivity. The cab features air conditioning, advanced controls, and a high-resolution display screen that provides real-time information on machine performance and diagnostics.

The excavator also includes safety features such as rearview cameras, backup alarms, and integrated monitoring systems to ensure safe and efficient operation.

Fuel Efficiency and Maintenance

Fuel efficiency is another strong suit of the EX3600. The machine’s fuel tank capacity is approximately 7,450 L (1 639 gal.), which allows for extended operational periods between refuelling. Regular maintenance is straightforward, with easy access to key components and scheduled service intervals designed to keep the machine running smoothly and extend its lifespan.

Should You Replace the Hitachi EX3600 Excavator Exhaust with Aftermarket Exhaust?

Replacing the exhaust system on your Hitachi EX3600 Excavator can be a significant decision that affects performance, safety, and maintenance. While aftermarket exhaust systems can offer benefits, they also come with potential drawbacks. Here’s a detailed guide to help you decide whether to replace the OEM exhaust with an aftermarket option.

Benefits of Aftermarket Exhaust Systems

  1. Improved Performance
    • Increased Horsepower and Torque: Aftermarket exhaust systems are often designed to enhance engine performance. By improving exhaust flow, these systems can help increase horsepower and torque, which may lead to better excavation efficiency.
    • Enhanced Efficiency: Some aftermarket exhausts are designed to reduce back pressure and improve fuel efficiency. This can result in lower fuel consumption and potentially reduced operational costs.
  2. Reduced Noise Levels
    • Quieter Operation: Many aftermarket exhaust systems come with advanced noise-reducing technologies. If noise levels from the stock exhaust are too high for your work environment or local regulations, a quieter aftermarket exhaust can be beneficial.
  3. Durability and Longevity
    • High-Quality Materials: Aftermarket exhausts can be made from high-quality materials like stainless steel, which may offer better durability and resistance to corrosion compared to OEM parts.
  4. Customizability
    • Tailored Solutions: Aftermarket options allow for customization. You can choose an exhaust system that matches your specific needs, whether it’s for increased performance, reduced noise, or improved aesthetics.

Drawbacks of Aftermarket Exhaust Systems

  1. Compatibility Issues
    • Fit and Function: Not all aftermarket exhaust systems are designed specifically for the Hitachi EX3600. Ensuring compatibility is crucial; a poorly fitting exhaust can lead to performance issues or damage.
  2. Potential Warranty Concerns
    • Manufacturer’s Warranty: Replacing the OEM exhaust with an aftermarket part can sometimes void the manufacturer’s warranty on your excavator. It’s important to check warranty terms and conditions before making any changes.
  3. Regulatory Compliance
    • Local Regulations: Exhaust systems must meet local emissions and noise regulations. Aftermarket exhausts might not always comply with these standards, which could lead to legal issues or fines.
  4. Cost Considerations
    • Initial Investment: High-quality aftermarket exhaust systems can be expensive. While they might offer performance and durability benefits, the initial cost is a significant factor to consider.

When to Consider an Aftermarket Exhaust System

  1. Performance Upgrades
    • If you’re looking to increase the power and efficiency of your Hitachi EX3600 for more demanding tasks, performance-oriented aftermarket Hitachi exhausts could be a good investment.
  2. Noise Reduction
    • If the noise from the stock exhaust is excessive and affects your working environment or violates noise regulations, a quieter aftermarket exhaust might be necessary.
  3. Frequent Maintenance Issues
    • If you’re experiencing frequent issues with the OEM exhaust, such as rust or leaks, an aftermarket exhaust made from more durable materials could offer a long-term solution.
  4. Special Requirements
    • For specific operational needs, such as working in sensitive environments or meeting particular regulations, a customized aftermarket exhaust system might be required.

When to Stick with the OEM Exhaust

  1. Warranty Concerns
    • If your excavator is still under warranty, keeping the OEM exhaust ensures that you don’t void any warranty coverage.
  2. Regulatory Compliance
    • If you need to ensure that your excavator meets all local emissions and noise regulations, the OEM exhaust is designed to comply with these standards.
  3. Cost Efficiency
    • If the cost of a high-quality aftermarket exhaust outweighs the benefits you expect to receive, sticking with the OEM exhaust might be the more economical choice.
  4. Reliable Performance
    • If the OEM exhaust is performing well and meeting your needs, there may be no immediate reason to switch.


Choosing to swap out the Hitachi EX3600 Excavator’s exhaust for an aftermarket model is a decision that needs careful thought about performance, noise levels, and legal standards. Our in-depth analysis of the EX3600 shows it’s a solid pick for major digging and mining work. Looking at aftermarket exhausts, we see they can offer better performance and quieter operation, but there are trade-offs like fit issues, cost, and warranty concerns.

In the end, the choice to go aftermarket will hinge on what you need and value most. If you’re after more power, less noise, or a tougher exhaust, it might be a good move. But if you’re all set with your current setup and it’s all above board, then the original equipment manufacturer’s part could be your best bet.