Wie wählt man zwischen einem gebrauchten Mobilbagger und einem gebrauchten Raupenbagger?

When choosing a used excavator, whether a wheel or crawler model, it’s essential to carefully evaluate several factors to ensure you make the right investment. Below, we’ll explore key considerations for both types of machines to help you determine the best option for your needs.

What Is the Condition of the Engine and Hydraulic System?

Wheel Excavator: Since second hand wheel excavators are often used for lighter tasks on smoother surfaces, their engine typically experiences less strain. However, it’s crucial to check the engine’s performance and ensure the hydraulic system is functioning properly, as it plays a vital role in digging and lifting operations.
Crawler Excavator: Crawler excavators handle heavier, more demanding tasks, so the engine and hydraulic system should be thoroughly inspected. Look for signs of leakage, low pressure, or sluggish operation, as these could indicate internal issues or the need for expensive repairs.

How Are the Tracks or Tires?

Wheel Excavator: For wheel excavators, check the tires for even wear. Look for any cracks, punctures, or signs of uneven wear, which could point to past operational issues or poor maintenance.
Crawler Excavator: Inspect the tracks for wear, cracks, and signs of stretching. Tracks are typically more expensive to replace, so also check the condition of the rollers, sprockets, and undercarriage components for excessive wear.

What Are the Machine’s Work Hours and Maintenance History?

Wheel Excavator: The number of operating hours is a crucial factor in evaluating a used wheel excavator. Although wheel excavators tend to require less maintenance than their crawler counterparts, it’s still essential to examine the maintenance records and ask if the machine has had any major repairs or recurring issues.
Crawler Excavator: Crawler excavators generally have higher wear due to their use in tougher conditions. In addition to checking the operating hours, make sure to review the machine’s detailed maintenance history to ensure it has been properly serviced and repaired.

What Type of Work Did the Excavator Do?

Wheel Excavator: If the used wheel excavator machine has been used for lighter tasks such as urban infrastructure, roadwork, or material handling on solid, flat surfaces, it may have less wear. Be sure the machine was used appropriately for the tasks it was intended for.
Crawler Excavator: Crawler excavators are built for heavy-duty tasks such as mining, earthmoving, or construction. If the machine has been used extensively in tough conditions like deep digging or rocky terrain, this could cause considerable wear, especially on the tracks and undercarriage.

How Does the Machine Perform in a Test Drive?

Wheel Excavator: Always take a used wheel excavator for a test drive if possible. Ensure the machine operates smoothly, accelerates properly, and performs well on various surfaces. Listen for any unusual noises or vibrations that might indicate underlying issues.
Crawler Excavator: Similarly, take the crawler excavator for a test run on different terrains. Pay attention to its stability, speed, and smoothness. Make sure that the boom, bucket, and tracks all operate without hesitation.

Is It Easy to Find Spare Parts and Service?

Wheel Excavator: Before purchasing, confirm that spare parts and service are easily accessible for the specific wheel excavator model. If parts are hard to find or expensive, maintenance costs may quickly become a financial burden.
Crawler Excavator: Crawler excavators generally require more frequent maintenance. Ensure that replacement parts, especially for critical components like tracks, sprockets, and hydraulics, are readily available and affordable.

Which Excavator Suits Your Needs?

Choosing between a used wheel and crawler excavator ultimately depends on the nature of your work. If you require a machine for lighter, urban tasks with greater mobility, a wheel excavator may be the better option. However, for heavy-duty projects in more rugged environments, a crawler excavator is typically the ideal choice.

Regardless of which machine you choose, make sure to conduct a thorough inspection, check the maintenance history, and evaluate the machine’s performance to ensure you are getting a good deal.