partnership

Strategic Partnership: Lehl & NXG Group

Advanced Mining Drill Bit Repair Solutions in South Africa

In the evolving mining industry, operational efficiency, cost control, and equipment reliability are critical for success. To meet these demands, Lehl is proud to announce a strategic partnership with NXG Group, a globally recognized leader in drilling technology, machine shop services, and hardfacing solutions.

This partnership is designed to bring world-class mining drill bit repair services to South Africa and across Africa, combining Lehl’s local expertise and market access with NXG’s advanced engineering, API-accredited machining capabilities, and proprietary hardfacing technologies.

Strategic Partnership: Lehl & NXG Group

Advanced Mining Drill Bit Repair Solutions in South Africa

About the Partnership

The collaboration between Lehl and NXG Group focuses on delivering high-performance repair and refurbishment solutions for mining drill bits, including:

Button bit repair and replacement
Tungsten carbide insert replacement
Hardfacing and wear protection
Regrinding and sharpening
Structural refurbishment of drill bits

By leveraging NXG’s advanced repair technologies and Lehl’s operational presence in South Africa, this partnership ensures that mining companies benefit from faster turnaround times, reduced costs, and extended tool life.

Why This Partnership Matters

Mining operations in South Africa face constant challenges such as abrasive rock formations, high equipment wear, and increasing operational costs. Drill bits, in particular, are among the most expensive consumables in drilling operations.

Through this partnership, Lehl and NXG Group aim to:

Reduce the cost of drilling operations
Extend the lifespan of drill bits
Minimize downtime
Improve drilling efficiency and productivity

NXG’s expertise in hardfacing, carbide technology, and precision machining ensures that repaired drill bits perform close to, or even better than, new tools in certain conditions.

NXG Group Capabilities

NXG Group brings a powerful set of capabilities to this partnership, including:

1. API-Accredited Machine Shop

NXG operates an API-accredited machine shop capable of manufacturing and repairing drilling tools to the highest industry standards. This ensures quality, consistency, and reliability in every repair performed. (NXG Group)

2. Advanced Hardfacing Technology

NXG offers multiple hardfacing solutions, including:

Tungsten carbide inserts
Diamond-impregnated materials
Proprietary NXG-HF001 hardfacing

These technologies significantly improve wear resistance and extend tool life, even in highly abrasive environments. (NXG Group)

3. Precision Grinding & Carbide Dressing

NXG provides high-precision grinding and carbide dressing services, ensuring that drill bits maintain optimal cutting performance and gauge.

4. Global Engineering Expertise

With decades of combined industry experience, NXG’s engineering team delivers innovative solutions tailored to complex drilling challenges, improving both performance and cost-efficiency. (‏LinkedIn)

Lehl’s Role in the Partnership

Lehl serves as the local execution and customer interface partner in South Africa, responsible for:

Client acquisition and relationship management
On-site inspection and collection of worn drill bits
Logistics and coordination with NXG facilities
Quality assurance and delivery to clients
Local technical support and consultation

This ensures that clients receive fast, reliable, and locally accessible services without compromising on global standards.

Key Benefits for Mining Companies

1. Cost Savings (Up to 40–70%)

Repairing drill bits instead of purchasing new ones can reduce costs significantly. With advanced repair techniques, clients can reuse drill bits multiple times.

2. Extended Tool Life

NXG’s hardfacing and carbide technologies enhance durability, allowing drill bits to last longer in harsh mining environments.

3. Reduced Downtime

Faster repair turnaround times ensure that drilling operations continue with minimal interruption.

4. Improved Performance

Refurbished drill bits maintain optimal cutting efficiency, ensuring consistent drilling performance.

5. Sustainability

Repairing and reusing drill bits reduces waste and supports environmentally responsible mining practices.

Our Repair Process

The Lehl–NXG partnership follows a structured and quality-controlled repair process:

Step 1: Inspection & Assessment

Drill bits are inspected to determine wear levels, damage, and repair feasibility.

Step 2: Cleaning & Preparation

Bits are cleaned and prepared for repair, removing debris and worn materials.

Step 3: Carbide Replacement

Worn or damaged tungsten carbide buttons are replaced with high-quality inserts.

Step 4: Hardfacing Application

Advanced hardfacing materials are applied to improve wear resistance.

Step 5: Grinding & Finishing

Precision grinding ensures correct shape, gauge, and cutting performance.

Step 6: Quality Control & Testing

Each repaired bit undergoes strict quality checks before delivery.

Target Industries

This partnership serves a wide range of industries, including:

Gold mining
Platinum mining
Coal mining
Quarrying and construction
Exploration drilling

Whether for underground or surface mining, the Lehl–NXG partnership delivers solutions tailored to each application.

Competitive Advantage

What sets this partnership apart is the combination of:

Global expertise (NXG)
Local presence (Lehl)
Advanced technology (hardfacing & carbide systems)
Cost-effective solutions

Unlike traditional repair providers, this collaboration focuses on innovation, precision engineering, and long-term value rather than short-term fixes.

Vision for the Future

The partnership between Lehl and NXG Group aims to become a leading provider of drill bit repair services in Africa.

Future plans include:

Establishing local repair facilities in South Africa
Expanding services to neighboring countries
Introducing new drilling technologies
Offering training and technical support to mining companies

Get in Touch

If you are looking to reduce drilling costs, extend tool life, and improve operational efficiency, the Lehl–NXG partnership is your trusted solution.