Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Repainting a Hitachi EX120-2 Excavator: A Comprehensive Guide
#1
   

Introduction: The Appeal of a Fresh Coat
Repainting an excavator like the Hitachi EX120-2 is more than just an aesthetic upgrade; it's a practical decision that can enhance the machine's longevity, visibility on job sites, and even its resale value. However, the process is labor-intensive and can be costly, especially if undertaken without professional assistance.
Understanding the Hitachi EX120-2
The Hitachi EX120-2 is a mid-sized crawler excavator, widely used in construction and demolition projects. Weighing approximately 12,800 kg and powered by a 93 kW engine, it boasts a bucket capacity ranging from 0.5 to 1.0 cubic meters. Its robust design and hydraulic capabilities make it a versatile machine for various tasks.
The Repainting Process: Steps and Considerations
  1. Preparation
    • Cleaning: Thoroughly wash the excavator to remove dirt, grease, and old paint. This step is crucial to ensure proper adhesion of the new paint.
    • Rust Removal: Use wire brushes or sandpaper to eliminate any rust spots. In some cases, a rust converter may be applied to prevent future corrosion.
    • Sanding: Lightly sand the entire surface to provide a key for the new paint. This step also helps in smoothing out imperfections.
    • Masking: Cover areas that shouldn't be painted, such as windows, lights, and hydraulic components, using masking tape and plastic sheeting.
  2. Priming
    • Application: Apply a high-quality primer suitable for metal surfaces. This layer enhances paint adhesion and provides additional protection against rust.
    • Drying: Allow the primer to dry completely, following the manufacturer's recommended drying time.
  3. Painting
    • Choosing Paint: Select a durable, weather-resistant paint. Marine-grade two-part epoxy paints are often recommended for their longevity and finish quality.
    • Spraying: Using a spray gun, apply the paint evenly across the surface. Multiple thin coats are preferable to a single thick coat to avoid runs and ensure uniform coverage.
    • Drying: Allow each coat to dry thoroughly before applying the next. This process can take several hours to a day, depending on environmental conditions.
  4. Finishing Touches
    • Inspection: After the final coat has dried, inspect the machine for any missed spots or imperfections. Touch up as necessary.
    • Reassembly: Remove masking materials and reassemble any parts that were taken off for painting.
Cost and Time Estimates
Repainting an excavator is a significant investment in both time and money. For instance, one operator reported spending two full days just on cleaning a greasy machine before even beginning the painting process. The total cost for materials, including high-quality two-part marine paint, was approximately AUD 2,000. Given the smaller size of the EX120-2, costs may vary but are generally in the same range.
Professional painting services can be considerably more expensive. One estimate for repainting the front end hood, fenders, and cab of a truck was around USD 15,000, highlighting the potential costs involved .
Challenges and Tips
  • Time-Consuming: The process is labor-intensive, often taking several days to complete.
  • Environmental Conditions: Ideal painting conditions are essential. High humidity or low temperatures can affect paint adhesion and drying times.
  • Surface Preparation: Proper cleaning and rust removal are critical. Inadequate preparation can lead to peeling or bubbling of the new paint.
  • Professional Help: If unsure about undertaking the task, consider hiring professionals to ensure a high-quality finish.
Conclusion
Repainting a Hitachi EX120-2 excavator is a worthwhile endeavor that can breathe new life into the machine. While the process requires a significant investment of time and money, the benefits of improved aesthetics, protection against corrosion, and potentially higher resale value make it a prudent choice for many operators. By following the outlined steps and considering the associated costs and challenges, you can achieve a professional-looking finish that enhances the longevity and performance of your excavator.
For a visual guide on the repainting process, you might find the following video helpful:

Reply


Messages In This Thread
Repainting a Hitachi EX120-2 Excavator: A Comprehensive Guide - by MikePhua - 08-12-2025, 10:48 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Pulling Scrapers with Case Equipment: A Comprehensive Guide MikePhua 0 5 1 hour ago
Last Post: MikePhua
  Terex TA40 Articulated Dump Truck: A Comprehensive Overview MikePhua 0 11 1 hour ago
Last Post: MikePhua
  Kobelco SK70SR-1E Excavator Overview MikePhua 0 13 2 hours ago
Last Post: MikePhua
  Case 580ST Backhoe Loader: A Comprehensive Overview MikePhua 0 11 2 hours ago
Last Post: MikePhua
  Comprehensive Overview of the CAT 226B Service Manual MikePhua 0 8 2 hours ago
Last Post: MikePhua
  Lull 644D-34: A Comprehensive Overview of Features, Performance, and Maintenance MikePhua 0 8 6 hours ago
Last Post: MikePhua
  Understanding the Hitachi EX60 and Its Grey Market Variants MikePhua 0 4 7 hours ago
Last Post: MikePhua
  Is the CAT E120B Excavator Still Worth Buying Today MikePhua 0 7 7 hours ago
Last Post: MikePhua
  Protecting Your Excavator from Winter Weather MikePhua 0 4 7 hours ago
Last Post: MikePhua
  What Should You Look for When Buying a Used Mini Excavator MikePhua 0 8 7 hours ago
Last Post: MikePhua
  Is It Safe and Legal to Haul a 200-Class Excavator on a Tag Trailer MikePhua 0 8 7 hours ago
Last Post: MikePhua
  What Is the Hein-Werner C-10 Excavator and Why Is It So Rare MikePhua 0 6 7 hours ago
Last Post: MikePhua
  Understanding the Grey Market in Hitachi Equipment MikePhua 0 6 7 hours ago
Last Post: MikePhua
  CAT 226 Skid Steer Owner’s Manual: Comprehensive Guide for Operators MikePhua 0 9 7 hours ago
Last Post: MikePhua
  Case CX230B Crawler Excavator: An Overview of Maintenance and Operation MikePhua 0 7 8 hours ago
Last Post: MikePhua

Forum Jump:


Users browsing this thread: 1 Guest(s)