TOOLS
Down-the-Hole Drilling Tools
Minerza’s Down-the-hole (DTH) drilling tools are built to push performance boundaries in productivity and sustainability. Each component is engineered to deliver maximum impact efficiency, lower air consumption, and longer operating life — reducing total drilling costs and environmental impact. Through close collaboration with our customers, we continually enhance drilling precision, consistency, and overall results.
Down-the-hole hammers
Minerza DTH hammers merge high-impact force with optimized air control for exceptional energy transfer and minimal loss. Designed for deep and demanding drilling, they deliver fast penetration, reliable rock fragmentation, and long-lasting durability — ensuring consistent performance with reduced maintenance and fuel use.
Down-the-hole bits
Our DTH drill bits are designed for endurance and precision in all ground conditions. With reinforced head geometry, deep flushing grooves, and high-performance carbide inserts, Minerza bits provide aggressive cutting action, efficient cleaning, and superior wear resistance — enabling operators to drill further with fewer tool changes.
Down-the-hole pipes
Minerza DTH pipes are produced from precision cold-drawn seamless steel for straightness, uniform wall thickness, and superior tensile strength. This results in smoother drilling operations, reliable torque transfer, and longer service life. Each pipe is designed for optimal compatibility between rigs and hammers across the entire DTH range.
High productivity
Our DTH systems combine high impact energy, durability, and fuel efficiency to achieve faster penetration and stable performance in demanding applications.
CarbideMax inserts
Minerza drill bits incorporate CarbideMax inserts made from advanced cemented carbide to deliver exceptional hardness, toughness, and wear resistance. This technology extends tool life, reduces downtime, and improves overall drilling efficiency.
DTH HAMMER
Minerza RH590 Apex
High-speed DTH hammer delivering up to 15% higher penetration with optimized air efficiency and reinforced internal design for maximum durability.
DTH BITS
Down The Hole Drilling Bits
Durable DTH bit for all ground conditions — combines extended carbide life, precision steel support, and optimized flushing for faster, cleaner drilling.
DTH PIPES
Down The Hole Drilling Pipes
Durable DTH bit for all ground conditions — combines extended carbide life, precision steel support, and optimized flushing for faster, cleaner drilling.
DTH HAMMER
Minerza RH590 Apex
High-speed DTH hammer delivering up to 15% higher penetration with optimized air efficiency and reinforced internal design for maximum durability.
DTH BITS
Down The Hole Drilling Bits
Durable DTH bit for all ground conditions — combines extended carbide life, precision steel support, and optimized flushing for faster, cleaner drilling.
DTH PIPES
Down The Hole Drilling Pipes
Precision-engineered DTH pipes made from seamless N80 steel for smooth drilling, high strength, and extended durability in demanding operations.
Top Hammer Drilling Tools
Minerza Top Hammer drilling tools deliver maximum impact energy to the rock with exceptional efficiency, minimizing energy loss and ensuring stable, sustainable performance. The result is higher productivity, reduced maintenance, and longer equipment life.
Top hammer drill bits
Minerza Top Hammer drill bits offer extended wear resistance, improved hole accuracy, and increased penetration rates. Manufactured with premium cemented carbide grades, our threaded button bits are available in a wide diameter range and multiple button configurations to match different rock types. Each design provides optimal flushing, stability, and cutting performance for demanding surface and underground conditions.
Top hammer rods
High-strength Minerza drill rods are made from premium alloy steel and available in both hexagonal and round profiles. Precision-engineered to minimize deviation and extend service life, these rods deliver straight holes and consistent drilling performance in all applications.
Top hammer shank adapters
Minerza shank adapters are built to endure extreme dynamic loads, transferring energy efficiently from the rock drill piston into the drill string. Their superior fatigue resistance and surface hardening ensure stable energy transmission and extended operating time without performance loss.
MZ-Link
The MZ-Link system represents an advanced step in Minerza’s thread connection technology. Offering up to 30% longer service life compared to conventional systems, it enhances productivity and reduces drilling costs per meter advanced.
Longer-lasting components
Minerza drill steel features exceptional fatigue resistance and wear strength. Asymmetric thread geometry improves energy transfer and penetration rate, increasing component life by over 30% while maintaining structural integrity under heavy load.
Lower drilling costs
Refined steel composition, optimized bit-rod connections, and compact thread design lower cost per meter drilled. All components are engineered to resist frictional heat and high impact forces, minimizing wear, galling, and pitting.
Innovative CarbideMax technology
CarbideMax represents Minerza’s most advanced carbide grades, providing outstanding hardness, shape retention, and safety. The result is longer grinding intervals, higher penetration rates, and greater reliability across all drilling environments.
TOP HAMMER DRILL
Minerza RT180 MaxDrive
High-performance top hammer system delivering maximum energy transfer, precision alignment, and extended lifespan for efficient surface drilling.
TOP HAMMER RODS
Top Hammer Drilling Rods
Reinforced top hammer rods for surface drilling — improved alloy, higher energy efficiency, and 30% longer lifespan for maximum productivity.
TOP HAMMER DRILL BITS
ABX Series Top hammer drill bits
Advanced top hammer bit for automated drilling — extended grinding intervals, higher penetration, and superior wear resistance for continuous productivity.
TOP HAMMER DRILL BITS
HD Series Top hammer drill bits
Rugged high-performance drill bits designed for demanding production drilling — longer service life, faster penetration, and reduced operating costs.
TOP HAMMER DRILL BITS
SP Series Top hammer drill bits
High-speed, precision-engineered drill bits delivering up to 30% faster penetration with superior durability for mine development and tunneling.
TOP HAMMER DRILL BITS
TC Series Top hammer drill bits
Reinforced Alpha-system drill bit delivering up to 80% longer grinding intervals and superior durability for heavy-duty production drilling.
Rotary Drilling Tools
Minerza offers a complete range of high-performance Rotary Drilling Tools for mining and large blast holes. Whether you need a single bit or a full drill string, each component is designed for maximum penetration, lower total cost per meter, and sustainable operation. Customized options for different rock formations allow for optimized drilling efficiency and extended equipment life.
Rotary drill bits
Minerza rotary drill bits are engineered from advanced high-strength materials to ensure exceptional durability and lower operating costs. Innovative bearing systems, precision machining, and optimized geometry extend bit life and enhance cutting efficiency, reducing vibration and wear during long drilling cycles.
Rotary drill adaptors
A full line of Minerza rotary subs and adaptors supports diverse drilling applications. These components facilitate quick thread transitions, protect against thread wear, and ensure seamless compatibility between tools, helping maintain consistent energy transfer and minimal downtime.
Rotary drill stabilizers
Minerza offers both welded and roller-type stabilizers for superior hole control. Welded stabilizers reduce deviation, while roller stabilizers provide improved reaming and cutting in hard rock conditions. Each stabilizer is built for long service life and dependable performance in demanding environments.
Rotary drill deck bushings
Minerza deck bushings keep the drill pipe centered over the hole, minimizing misalignment and reducing mechanical wear. Available in static and rotating configurations, they prevent premature tool fatigue and extend the lifespan of the drill string.
Rotary drill pipes
Our rotary drill pipes are assembled with precision tool joints and mid-body tubes to create strong, vibration-resistant drill strings. Manufactured from heat-treated seamless steel, they deliver excellent straightness and stability, adapting to varying rock hardness and abrasiveness.
Rotary drill shock absorbers
Minerza shock absorbers are designed for both rotary and DTH applications. By minimizing vibration and mechanical shock, they enable smoother drilling and extend the life of the rig, rotary head, and bit components, ensuring consistent operational safety and performance.
Optimal service life
Minerza rotary drill components are built from heat-treated alloys and premium carbide grades to achieve superior wear resistance and reliability. The combination of material quality and optimized geometry provides a balanced performance between tool life and productivity.
Cutting-edge manufacturing
Every Minerza drill pipe is produced using high-precision manufacturing with controlled heat treatment and full quality inspection. Seamless tubing, precise welding, and straightness verification ensure reliable operation and consistent energy transmission under load.
CarbideMax technology
Minerza CarbideMax inserts combine hardness, strength, and wear resistance to minimize breakage and maintain sharpness longer. These properties enhance drilling performance, reduce maintenance intervals, and ensure optimal bit behavior across varied geological conditions.
ROTARY DRILL ADAPTERS
RD Series Rotary Drill Adapters
High-strength rotary adapters designed for demanding drilling applications, ensuring reliable torque transfer, thread protection, and long service life.
ROTARY DRILL STABILIZERS
RS SeriesRotary Drill Stabilizers
Heavy-duty welded and roller stabilizers built for precision, durability, and efficient performance in rotary and DTH drilling operations.
ROTARY DRILL PIPES
RP Series Rotary Drill Pipes
High-strength rotary drill pipes designed for superior durability, torque transfer, and wear resistance in demanding rotary and DTH operations.
ROTARY DRILL BITS
RB450 Series Rotary Drill Bit
High-efficiency rotary bits designed for maximum penetration rate, durability, and low operating costs in hard-rock drilling.
ROTARY DRILL BITS
RB440 Series Rotary Drill Bit
High-performance rotary bits with sealed bearings and optimized cutting design for extended life and reduced drilling costs in surface mining.
ROTARY DRILL BITS
RB340 Series Rotary Drill Bit
Durable single-seal roller bearing bits engineered for reliability, longer service life, and lower drilling costs in medium to hard rock formations.
ROTARY DRILL BITS
RB240 Series Rotary Drill Bit
Advanced air-bearing rotary bits offering longer life, improved cutting performance, and superior efficiency in diverse drilling applications.
Raise Boring Drilling Tools
Minerza Raise Boring tools are engineered for safe, efficient, and cost-effective operations across all applications — from vertical and inclined shafts to horizontal development. Our systems combine long service life with predictable performance, ensuring reliability even in the most demanding geological conditions. Close collaboration with our clients allows us to share expertise and adapt every tool to specific project needs.
MZ890 pilot bit
The MZ890 pilot bit is designed for stability, accuracy, and long-term performance. Its reinforced cutting structure and optimized bearing system increase drilling predictability and extend service life, reducing downtime and improving cost efficiency per meter drilled.
MZ410 cutter
The MZ410 cutter incorporates enhanced design features for maximum efficiency and durability. Its improved load distribution and bearing protection ensure consistent penetration rates, greater cutter life, and safer operation in all raise boring environments.
Push bore reamers
Minerza push bore reamers are purpose-built for precision slot-hole drilling in underground mining. The system includes reamers of various diameters for both upward and downward operations, supported by interchangeable cutters for different rock types, delivering reliability and smooth reaming performance.
Features
• Designed for superior drilling performance and higher penetration rates
• Extended service life with reduced maintenance requirements
• Multiple cutter configurations for different ground conditions
• Advanced reamer design with upgraded load and bearing protection
• Shorter service intervals and enhanced operator safety
Why choose Minerza raise boring tools
Minerza provides a comprehensive range of tools for all raise boring techniques, including conventional, blind, and horizontal drilling. Our modular system design ensures compatibility and short delivery times, while each tool is built for easy assembly, service, and replacement in the field.
With our pilot bits, cutters, and reaming heads available in different diameters and configurations, you can drill holes from 0.6 m to over 8 m while maintaining high performance across all rock types. Our reaming heads use standard bolted connections, allowing quick customization and simplified maintenance on site.
Safety and reliability are at the heart of Minerza’s engineering philosophy. Each component undergoes rigorous testing to minimize operator risk and maximize drilling stability. Continuous R&D drives us to create durable, high-performance tools that deliver sustainable and predictable results for every project.
Extra value for you
• Option to rent reaming heads in diameters from 0.66 m to 6.1 m
• Dedicated R&D support for complex and custom raise boring projects
• Commitment to lowering your total drilling cost through optimized tool life and performance
RAISE BORING DRILLING TOOLS
PB890 Raise Boring Pilot Bit
Heavy-duty pilot bits for raise boring with reinforced bearings, extended service life, and maximum reliability in demanding rock conditions.
RAISE BORING DRILLING TOOLS
RC410 Raise Boring Cutter
High-durability raise boring cutters with reinforced bearings and reusable parts for longer life, improved safety, and lower drilling costs.
RAISE BORING DRILLING TOOLS
PR740 Raise Boring Reamer
High-performance push bore reamers for underground mining, designed for efficient slot hole drilling, minimal maintenance, and extended tool life.
RAISE BORING DRILLING TOOLS
PB890 Raise Boring Pilot Bit
Heavy-duty pilot bits for raise boring with reinforced bearings, extended service life, and maximum reliability in demanding rock conditions.
RAISE BORING DRILLING TOOLS
RC410 Raise Boring Cutter
High-durability raise boring cutters with reinforced bearings and reusable parts for longer life, improved safety, and lower drilling costs.
RAISE BORING DRILLING TOOLS
PR740 Raise Boring Reamer
High-performance push bore reamers for underground mining, designed for efficient slot hole drilling, minimal maintenance, and extended tool life.