Large girth gears and pinion gears operate under continuous heavy loads in ball mills, rotary kilns, SAG mills, and other critical industrial equipment. Even a minor internal defect can eventually lead to tooth damage, unexpected shutdowns, or expensive maintenance.

At Tenfaye Foundry, every critical gear component undergoes comprehensive Non-Destructive Testing (NDT) before shipment to ensure structural integrity and long-term reliability.

What Does NDT Include?

Our inspection process typically includes:

• Ultrasonic Testing (UT) for internal defects
• Magnetic Particle Testing (MT) for surface and near-surface cracks
• Dimensional inspection
• Hardness testing
• Material chemical composition verification

These inspections are carried out according to international quality standards and customer specifications.

Why Is NDT Important?

1. Detect Hidden Internal Defects

Ultrasonic testing identifies shrinkage cavities, inclusions, internal cracks, and other discontinuities that cannot be seen from the surface.

2. Prevent Early Gear Failure

Undetected casting defects may develop into fatigue cracks after thousands of operating hours. Early detection significantly reduces the risk of unexpected failures.

3. Improve Tooth Load Distribution

A structurally sound gear maintains better alignment during operation, resulting in smoother meshing, reduced vibration, and lower noise levels.

4. Increase Equipment Service Life

Reliable internal quality allows gears to withstand continuous heavy loads, extending both gear life and the lifespan of connected equipment.

5. Reduce Maintenance Costs

High-quality inspected gears help minimize unplanned shutdowns, spare part replacement, and maintenance expenses throughout the equipment lifecycle.

6. Meet International Project Requirements

Many mining, cement, power generation, and EPC projects require NDT reports before equipment acceptance. Complete inspection documentation improves project approval efficiency.

Tenfaye Quality Commitment

Every girth gear and pinion gear is manufactured through strict quality control—from casting simulation and heat treatment to precision machining and final inspection.

Our NDT reports provide customers with confidence that every component delivered is ready for reliable long-term operation in demanding industrial environments.

Quality is not inspected into a product—it is built into every casting.