On the road of continuous innovation and pursuit of excellence, STONE crawler undercarriage has once again ushered in a glorious moment. Recently, the second batch of our carefully crafted 300-ton mining digger undercarriage assembly was successfully delivered to an Indonesian mining customer. This is not only a re-recognition of the quality of STONE, but also a solid footprint of our steady expansion in the international market. The first batch of products has been successfully installed and has been running stably for more than 4,000 hours, demonstrating the extraordinary durability of STONE products.


As a leader in the engineering machinery parts industry, STONE crawler undercarriage is well aware of the stringent requirements of mining customers for equipment performance. We have achieved accurate prediction of the fatigue life of mining equipment undercarriage through integrated and innovative multi-body dynamics simulation analysis technology, and at the same time have optimized the structure to ensure the excellent performance of the product in complex mining environments. Through in-depth cooperation with well-known steel mills, we have jointly developed high-hardenability alloy steel, which not only accurately controls the alloy composition of the raw materials, but also optimizes the microstructure, greatly improving the wear resistance and impact resistance of the mining digger undercarriage assembly.
In the wave of the global construction machinery industry moving towards high-end and large-scale development, STONE crawler undercarriage keeps pace with the development of the industry, focuses on overcoming difficulties in core manufacturing technology, continuously expands product lines, and launches "full series, large tonnage, high quality, customized" equipment undercarriage solutions. The 300-ton product delivered this time is not only the result of STONE's independent research and development in mining digger undercarriage, but also a demonstration of our strength in the field of ultra-large tonnage products.


In the wave of the global construction machinery industry moving towards high-end and large-scale development, STONE crawler undercarriage keeps pace with the development of the industry, focuses on overcoming difficulties in core manufacturing technology, continuously expands product lines, and launches "full series, large tonnage, high quality, customized" equipment undercarriage solutions. The 300-ton product delivered this time is not only the result of STONE's independent research and development in mining digger undercarriage, but also a demonstration of our strength in the field of ultra-large tonnage products.
Guided by the corporate mission of "Building The World Together", STONE crawler undercarriage will continue to forge ahead, and polish the golden signboard of "Made in China" with unremitting independent innovation and exquisite manufacturing technology. We are committed to building a world-class mining equipment undercarriage brand, and by providing better quality and more efficient products and services, we will help the prosperity and sustainable development of the global construction machinery industry. STONE, work with you to build a brilliant future for the construction machinery parts industry!

Q: 1.What is an undercarriage on a digger?
A: The life of an excavator undercarriage (measured in operating hours) can vary greatly depending on a number of factors, including the type of work, operating conditions, maintenance methods, and the quality of the undercarriage components. Regular maintenance, including track tensioning, sprocket and idler alignment, and proper cleaning, can significantly affect the life of the undercarriage. We can provide you with a one-year or 2,000-hour warranty, so you can use it with peace of mind.

