Tenfaye, a premier large-scale industrial steel casting manufacturer with nearly 20 years of expertise, has successfully completed the bulk delivery of 10 heavy duty girth gears to a prominent engineering and technology corporation in South Africa.
To withstand the harsh operating conditions—characterized by heavy loads and extreme wear—typical of South African mining sites, Tenfaye custom-manufactures these gears in strict accordance with precise drawings provided by the customer.

Project Specifications (Core Technical Indicators)

Product Name: Heavy Duty Girth Gear / Kiln Gear Ring
Quantity: 10 Units (Customized Bulk Delivery)
Application: Mining Ball Mill & Metallurgy Rotary Kiln Core Drive Systems
Manufacturing Process: One-Stop Heavy Steel Casting Foundry + Precision Machining
Core Material: ZG42CrMo High-Strength Premium Cast Steel

Premium Material & Rigorous Heat Treatment Standards 

Throughout the production phase, the foundry utilized precise Quenching and Tempering (Q&T) and normalizing heat treatment processes. This significantly enhanced the wear resistance, fatigue life, and long-term durability of the cast steel girth gears. This advanced heavy industrial processing methodology fundamentally reduces subsequent operational and maintenance costs for overseas buyers.

Full-Process Quality Control: Guaranteeing "Zero-Defect" International Delivery

To meet the rigorous international compliance and quality standards requested by the South African partner, Tenfaye implemented a strict technical risk-control workflow, ensuring product qualification through three core testing methods:

1. Advanced CAE Casting Simulation

Prior to pouring, advanced computer-aided simulation was applied to comprehensively optimize the gating and ridding system design. This eliminates potential internal casting defects like shrinkage cavities and blowholes from the source.

 2. Germany OBLF Spectrometer Analysis

During smelting and pouring, the chemical composition of the molten steel was precisely controlled via a German-imported OBLF spectrometer. This ensures 100% adherence to the required material grade and provides buyers with a complete, traceable material report.

3. 100% Non-Destructive Testing (NDT Tested)

Every single gear ring leaving the factory underwent rigorous Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) to ensure a flawless surface and a zero-crack interior.

About Tenfaye

Tenfaye specializes in the research, development, and manufacturing of large-scale heavy steel castings weighing 1 to 150 tons. Our high-quality industrial components are widely utilized in the global cement, mining, metallurgy, and heavy machinery sectors. The foundry strictly operates under the ISO 9001:2015 quality management system and possesses the advanced capability to perform precision machining customized to international standards, including DIN, JIS, ISO, and AGMA.
If you need to customize large gear rings or mill components, please send us your technical drawings. Our engineering team will provide a comprehensive quotation within 24 hours!