Improving Cutting Efficiency in Carrara Marble with Tungsten-Free Diamond Wire Beads (KB105 Case Study)

Published 22 April 2026

In marble quarrying, achieving the right balance between cutting speed, tool life, and cost per square meter is critical for operational profitability. With raw material prices—especially tungsten—remaining volatile at historically high levels, many quarry operators are actively seeking more cost-effective cutting solutions without compromising performance.

This case study presents the field performance of our newly developed KB105 diamond wire beads in Carrara white marble.

Our partner operates in Carrara white marble, where cutting consistency and surface quality are essential.

The key challenges included:

Maintaining stable cutting speed

Achieving reliable wire life

Reducing dependency on high-cost tungsten-based bonds

Solution: KB105 Diamond Beads (Cobalt&Tungsten-Free Bond Technology)

To address these challenges, we introduced KB105, a new bead design featuring a tungsten-free bond formulation.

This new bond system is engineered to:

Ensure stable diamond exposure

Maintain consistent cutting performance

Reduce sensitivity to raw material cost fluctuations

Field Test Results

Under real quarry operating conditions, KB105 delivered the following results:

Cutting speed: 20–22 m²/hour

Wire life: 50–60 m² per meter

Performance: Stable cutting with a balanced wear rate

These results demonstrate that a tungsten-free solution can achieve both efficiency and durability in marble applications.

Performance Analysis

Compared to conventional bead formulations, KB105 shows several practical advantages:

1. Balanced Cutting Behavior

The bond system provides a good balance between sharpness and wear resistance, ensuring stable cutting over time.

2. Cost Efficiency Improvement

By eliminating tungsten, the solution helps reduce exposure to raw material price fluctuations, improving cost predictability.

3. Consistency in Quarry Conditions

Field feedback confirms reliable performance under continuous operation, reducing downtime and tool replacement frequency.

From W789A to KB105: Continuous Development

The development of KB105 is part of our ongoing optimization from W789A to next-generation bond systems.

Our focus is not only on laboratory testing but on real quarry performance, ensuring that each improvement translates into measurable value for operators.

Conclusion

The KB105 case demonstrates that it is possible to achieve:

Higher cutting efficiency

Stable tool life

Improved cost control

—all without relying on cobalt and tungsten-based materials.

As market conditions continue to evolve, practical and cost-effective innovations like KB105 will play an increasingly important role in supporting quarry competitiveness.

If you are working with marble quarrying or looking to optimize your diamond wire performance, feel free to contact us for technical discussion or field evaluation support.