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July 27, 2023

Openex's Success in Planetary Carrier Machining for 110-Ton Mine Truck

At Openex, we pride ourselves on our commitment to precision engineering and technical excellence. Recently, we embarked on a challenging project involving the precision machining of the planetary carrier for a 110-ton mine truck. This crucial component serves as the intermediate bridge connecting the frame and the wheel side reducer, making it a vital part of the rear axle drive rotation in large mining trucks. The successful completion of the first set of planetary carriers and the customer's high recognition are a testament to our dedication to quality and accuracy.

planetary gearbox machining

Commencement and Swift Completion

On June 12, after meticulous technical preparations, Openex commenced the precision machining of the first set of planetary carriers. The project was executed with utmost care, given the critical role this component plays in the mining truck's performance and safety. Within just six days, on June 18, the first set of planetary carriers was successfully completed. The exceptional quality of the finished product garnered immediate praise from the customer.

Adherence to Strict Requirements

Understanding the planetary frame's significance in the mining truck's functionality, the customer had set forth stringent requirements. The planetary carrier is equipped with two bearings on its outer circle, serving as a connection point with the wheel hub. Any inaccuracies in processing could lead to oil leakage, affecting performance and reducing the vehicle's service life. To meet these exacting demands, the customer emphasized shape tolerance, positioning accuracy, dimensional accuracy, and surface roughness of the product.

Meticulous Machining Process

The production process for the planetary carrier involved multiple stages of precision machining. Starting with rough machining to remove surface allowances, the carrier underwent gantry drilling and semi-finishing machining, maintaining surface roughness within 0.25mm. The finishing touches were added with the utmost care and attention to detail. Throughout the entire process, each step was closely monitored by multiple departments to ensure flawless execution.

planetary carrier machining

Collaborative Success

At Openex, collaboration and teamwork are at the heart of every project. Our multi-departmental efforts paid careful attention to every detail, ensuring the final product met and exceeded customer expectations. The customer's recognition of the finished planetary carriers reflects our dedication to precision engineering and the quality of our products.

planetary carrier inspection

CMM Inspection of the planetary carriers

Future Deliverables

The successful completion of the first set of planetary carriers marks the beginning of an ongoing partnership. There are nine more sets of planetary carrier waiting machined. Our goal is to deliver a total of 400 sets of planetary carriers to the customer by the end of the next year.

Openex: Your Trusted Partner in Precision Engineering

Openex has been a trailblazer in the metal fabrication industry, consistently delivering high-quality solutions to diverse sectors. With a rich history of technical expertise and an unwavering commitment to excellence, our team is well-equipped to handle complex projects like the planetary carrier for 110-ton mine cars.

Feel free to contact us for more information about the project or to request free quotes for your next metal fabrication project.

About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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