A Brazilian buyer faces a choice:
OEM manganese cone head, 12‑week lead time, high price; or a Chinese supplier offering the same part at one‑third of the price, 3‑week delivery.

He has only one question: can he really trust Chinese suppliers?

The answer depends on what has happened in this market over the past thirty years. In 1985, the first international brand entered China, when 70% of core components for construction machinery were still imported. Forty years later, in just the first half of the year, China’s mining machinery exports alone reached 2.539 billion USD.

Understanding what happened in between is essential for every buyer.

In the late 1980s, China’s infrastructure boom began. Local crusher technology lagged clearly behind international standards, and 70% of the profit went to foreign brands. For multinational manufacturers, the signal was obvious. The earliest entered around 1985, the latest around 2016. Over a 30‑year span, they successively built factories, logistics centers and R&D centers in China.

What they brought was not just equipment and sales networks, but two very concrete moves.

Thousands of Chinese engineers and foundry technicians worked in these facilities under international standards and built real capabilities. When they later moved to private aftermarket parts factories, they took those standards with them.

Market figures confirm this trend. In 2021, China’s crusher industry was worth 27.07 billion RMB, rising to 29.52 billion RMB in 2023. In the first half of 2024, exports reached 2.539 billion USD, up 24.01% year‑on‑year—mature product lines are now flowing back into Europe and North America.

The process standards brought by international brands did not spread evenly across every product type. Cast wear parts have clear, verifiable thresholds, so their know‑how diffused most thoroughly. Precision‑machined parts, however, demand higher levels of equipment and process control, and the gap is still there. This directly determines which parts can be confidently localized and which must be handled with caution.

By product type:

For the same drawing and the same quote, the metallurgy, process control and quality‑assurance behind different suppliers can vary dramatically. That is why finding the right supplier matters more than finding the lowest price.

PAJOA Parts works with the same type of OEM‑grade supply chain described in this article: our engineers and partner foundries are trained on international brand standards, and we apply those standards to the replacement parts we supply.

If you want to benchmark your current supplier or compare drawings and materials, you can send us your part numbers or wear‑part drawings for a technical review and quote.

Whether Chinese replacement parts are “trustworthy” does not depend on the label “Made in China”. 

Over the past three decades, international brands have helped shape process standards and manufacturing capabilities in China. The market is still mixed, but in many segments there is now a meaningful number of capable, reliable suppliers to choose from.

Finding them—that is the real job.