Ulaanbaatar, Mongolia – April 2025 – As part of Caterpillar’s ongoing initiative to showcase global Best Dealer Practices, Barloworld Mongolia has been recognized for its new innovative technique: “Easy Centering After Arc Spray Applying on Top Deck.”
Developed in Barloworld Mongolia’s machine shop, the method solves a long-standing challenge in engine block reconditioning—accurately locating the center of the cylinder block after arc spray coating. Traditionally a time-consuming and error-prone task, this centering process has now been simplified and standardized, thanks to a creative and cost-effective solution developed in-house.
The method involves preparing the workpiece based on the cylinder block model, installing a centering tool, and machining the top deck surface before sandblasting and arc spraying. The surface is protected using tape and anti-bonding agents. Finally, the technician aligns the top deck symmetrically, significantly reducing errors and improving turnaround time.
According to the documentation submitted to Caterpillar, the benefits are clear:
- Faster and easier cylinder block centering
- Reduced risk of symmetry and machining errors
- Improved shop floor efficiency and productivity
The initiative was introduced by Enkhbold Erdenebayar, a machinist at Barloworld Mongolia, and formally documented by Bat-Erdene O., Technical Engineer. Their hands-on experience and collaborative effort not only improved internal processes but now stand as a benchmark for other dealers within Caterpillar’s global network.
The process leverages cutting-edge tools including the Smart Arc Advanced Electric Wire Arc Thermal Spray System, CNC engine block axis boring machinery, and high-precision sandblasting systems—highlighting Barloworld Mongolia’s dedication to operational excellence and innovation.
We sat down with Enkhbold Erdenebayar to learn more about the origin of this initiative.
Interview with Enkhbold Erdenebayar
Q: Please introduce yourself.
A: My name is Enkhbold Erdenebayar. I work as a machinist in the Machine Shop at Barloworld Mongolia. Our team is responsible for repairing and restoring components for Caterpillar and other heavy equipment brands on a daily basis.
Q: Can you tell us about the new innovative idea you developed?
A: When repairing 3500 series engines, depending on the degree of wear, we often perform metal spraying on the main surface. After that, the surface must be machined back to the standard size, which requires the block to be symmetrically aligned with the cutting tool. My improvement focuses on simplifying that alignment process to save time and eliminate symmetry errors. Since centering was both complicated and time-consuming, I introduced a method to make it easier and more efficient.
Q: What was the most important factor when implementing your idea?
A: The most important thing was preserving the original symmetry provided by the manufacturer. I also discussed the process with my colleagues to make sure it wouldn’t interfere with subsequent operations after the initial machining.
Q: What results did you achieve?
A: The outcome exceeded expectations. In the past, surfaces with significant wear required two rounds of metal spraying. Thanks to improved alignment, we’re now able to complete the job with just one round, which saves 5–6 hours of repair time per engine block.
Q: Any other key insights to share?
A: Yes—this method isn’t limited to the 3500 series. It can also be used on other engine blocks such as the C18, C27, and 3412.
Q: Any advice for your fellow machinists?
A: Always look for new ways to improve. Innovation starts with curiosity.
With this recognition, Barloworld Mongolia continues to lead in machining excellence, proving that local ingenuity can have a global impact across the Caterpillar dealer network.