Question

What is the role of the hydraulic system in an excavator?

What are the main advantages of hydraulic crawler excavators compared to wheeled excavators?

What is the average service life of an excavator used in mining?

What factors affect the lifespan of an excavator?

How to choose the right excavator for a construction site?

Accepted Answer

The hydraulic system is the core of an excavator. It converts engine power into hydraulic energy, which drives the boom, arm, bucket, and tracks. Key components include the hydraulic pump, cylinders, motors, control valves, and fluid. This system enables the machine to lift, dig, swing, and travel with precision.

Accepted Answer

Hydraulic crawler excavators are built for strength and stability, especially in challenging terrain. Instead of wheels, they rely on wide, heavy-duty tracks that evenly distribute the machine’s weight, allowing for excellent traction and balance on uneven or sloped surfaces. Compared to wheeled models, they deliver superior grip and lifting capacity, making them more effective in rough or muddy ground conditions. Their low center of gravity and well-balanced structure also enhance lifting performance, enabling them to handle heavy loads with greater ease and stability.

Accepted Answer

With proper care, most excavators used in mining can operate between 7,000 and 10,000 hours. Actual lifespan depends on usage intensity, maintenance frequency, and machine quality. Some units may last even longer if handled correctly and serviced regularly.

Accepted Answer

Several key elements determine how long an excavator will remain in good working condition. First, the intensity and frequency of use have a direct impact, heavy workloads or continuous operation can wear components out more quickly. Regular maintenance is also essential; timely servicing helps prevent minor issues from becoming serious problems. Operator behavior plays a major role too, well-trained operators who follow proper procedures and safety guidelines are more likely to keep the equipment in better shape over time. Lastly, the working environment matters: harsh conditions like extreme temperatures, high humidity, or dusty terrain can all contribute to faster wear and tear.

Accepted Answer

Start by identifying your project’s requirements, considering the site conditions and your available budget. Then, choose the type of excavator that best fits your needs, options include mini excavators, crawler excavators, wheeled excavators, backhoe loaders, and skid steer loaders. Each type is designed for specific tasks, so it’s important to match the machine to the job. Before making a final decision, review key features such as attachment compatibility, lifting capacity, digging depth, and reach. Also consider safety systems like rollover protection and audible alarms to ensure a secure working environment.