DTH (Down-The-Hole) hammers are specialized tools used for drilling in hard rock formations. When it comes to water well drilling, using the right equipment is crucial to ensure efficiency and effectiveness. Here are some key points to consider about DTH hammers for hard rock water well drilling:

1. Design and Durability: DTH hammers designed for hard rock drilling are built to withstand the intense conditions. They typically feature robust construction and high-quality materials to ensure longevity and reliability.

2. Impact Energy and Frequency: Hard rock requires significant impact energy to break through. DTH hammers are designed to deliver high impact energy and frequency to efficiently drill through tough rock formations.

3. Bit Diameter and Compatibility: The bit diameter of the DTH hammer should match the requirements of the water well being drilled. For a 6-inch diameter well, you would need a DTH hammer with a compatible bit size.

4. Air Pressure and Compressor Requirements: DTH drilling relies on compressed air to power the hammer. It’s important to have an air compressor with sufficient capacity to meet the air pressure requirements of the DTH hammer.

5. Maintenance and Serviceability: Regular maintenance is essential for DTH hammers to ensure they operate efficiently. Look for designs that are easy to service and have readily available replacement parts.

6. Customization Options: Different hard rock formations may require different drilling strategies. Having the ability to customize the DTH hammer with various bits and accessories can be beneficial.

7. Supplier Reputation and Support: Choosing a reputable supplier with a strong after-sales support network can make a significant difference in the long-term performance and maintenance of your DTH hammer.

When selecting a DTH hammer for hard rock water well drilling, it’s important to consider these factors to ensure you choose the right tool for the job. Consulting with a specialist or supplier with experience in your specific application can also be helpful in making an informed decision.

Information on T38, T45, and T51 rock drill rods coupling sleeves. These coupling sleeves are used to connect rock drill rods to extend their length, and are suitable for fields such as mining, quarrying, tunnel construction, and construction.

Product Description
T38, T45, and T51 rock drill rods coupling sleeves are connectors designed specifically for rock drill rods, used to extend the length of the drill rods. These sleeves are typically made of high-strength alloy steel and undergo CNC machining and heat treatment to ensure reliable connections and durability.

main features
High strength material: Made of high-quality alloy steel, it has high wear resistance and strength.
Precision machining: Through CNC machining, dimensional accuracy and surface smoothness are ensured.
Heat treatment: Through strict heat treatment processes, the hardness and toughness of the material have been improved.
Wide applicability: Suitable for T38, T45, and T51 rock drill rods, widely used in mining, quarrying, tunnel construction, and construction fields.
Application scenarios
Mining: Used for drilling operations in underground and open-pit mines.
Quarry: Used for drilling operations in stone mining.
Tunnel construction: used for drilling and blasting operations in tunnel excavation.
Architecture: Used for drilling operations in foundation engineering and pile foundation construction.
Supplier Information
These products are provided by multiple suppliers, and you can find relevant supplier information on the Alibaba website. Suppliers typically offer customized services and can provide suitable products based on your specific needs.

ordering information
Minimum order quantity: usually 1 piece, but the specific quantity may vary depending on the supplier.
Price range: Prices vary depending on the supplier, materials, processing techniques, and order quantity, generally ranging from $7 to $120 per piece.
Delivery time: usually 7 to 20 days, depending on the order quantity and supplier’s production capacity.

The optimal operating temperature range for DTH (Down The Hole) drill bits varies depending on specific drilling conditions and drill bit types. DTH drill bits are commonly used for rock excavation and mining operations, and their working temperature is affected by factors such as rock temperature, drilling speed, lubrication and cooling systems.

In general drilling applications, it is recommended to maintain the working temperature of the DTH drill bit within a low range to ensure its durability and efficiency. Here are several key factors and suggestions:

Cooling system: Use water or other coolant to lower the temperature of the drill bit and prevent overheating. Coolant can help remove the heat generated during the drilling process and extend the service life of the drill bit.

Lubrication: Proper lubrication can reduce the friction between the drill bit and the rock, lower the temperature, and improve the efficiency of the drill bit.

Drilling speed and load: Excessive drilling speed and load can cause the temperature of the drill bit to rise rapidly, affecting its performance and lifespan. Reasonable drilling parameter settings help maintain appropriate working temperatures.

Drill bit material: Different materials of DTH drill bits have different temperature tolerances. For example, diamond drill bits can typically operate at higher temperatures, but still require proper cooling and lubrication.

The optimal working temperature range for DTH drill bits is usually at lower temperatures. Through effective cooling and lubrication systems, as well as reasonable drilling parameter settings, the optimal working state of the drill bit can be maintained. The specific temperature range should be determined based on the actual drilling conditions and the recommendations of the drill bit manufacturer.

DTH (Down The Hole) drill bits are mainly used for mining, construction, and other heavy drilling operations. Due to its harsh working environment, regular maintenance of lubrication and cooling systems is crucial. The following are the maintenance methods for the lubrication and cooling system of the DTH drill bit:

Lubrication system maintenance

1. Choose the appropriate lubricant :
   -Refer to the recommendations of the equipment manufacturer and choose a lubricant suitable for the DTH drill bit. Ensure that the lubricant has good high-temperature stability and anti-wear performance.
2. Regularly replace lubricants :
   -Develop a lubricant replacement cycle based on the operating time and working conditions of the equipment. Usually, the lubricant should be replaced every 200-300 hours of operation.
3. Check the working status of the lubrication system:
   -Regularly check the working status of lubrication pumps, pipelines, and valves to ensure that lubricants can be evenly and continuously supplied to each lubrication point.
4. Cleaning and filtering lubricants:
   -Use efficient filters to keep lubricants clean. Regularly clean the lubrication system to remove carbon deposits and impurities.
5. Check the oil level of the lubricant:
   -Ensure that the oil level of the lubricant is within the normal range and avoid the oil level being too low or too high.

Cooling system maintenance

1. Choose the appropriate coolant:
   -Use high-quality coolant to ensure good thermal conductivity and corrosion resistance.
2. Regularly replace the coolant:
   -Develop a coolant replacement cycle based on the operating time and working conditions of the equipment. Usually, the coolant should be replaced every 500-1000 working hours.
3. Check the working status of the cooling system:
   -Regularly check the working status of the cooling pump, radiator, and pipelines to ensure that the coolant can circulate normally.
4. Clean the cooling system:
   -Regularly clean the radiator and cooling pipelines, remove scale and impurities, and keep the cooling system clean.
5. Check the coolant level:
   -Ensure that the coolant level is within the normal range, avoiding low or high levels.

Comprehensive maintenance suggestions

1. Regular inspection and recording:
   -Develop a detailed maintenance plan, regularly inspect and record the operating status of lubrication and cooling systems.
2. Train operators:
   -Train the operators to understand the working principles and maintenance methods of the lubrication and cooling system of the DTH drill bit.
3. Use high-quality accessories and consumables:
   -Choose high-quality lubricants, coolant, and filters to ensure the reliability and longevity of the system.

By using the above methods, the lubrication and cooling system of the DTH drill bit can be effectively maintained, extending the service life of the equipment and improving work efficiency.

DTH (Down-The-Hole) drill bits are commonly used in industries such as mining, construction, and geological exploration. Improving the service life of DTH drill bits can be achieved through the following aspects:

1. Proper Selection of Drill Bit Model and Material:

• Select suitable DTH drill bit models and materials based on different formation hardness and rock properties. For harder formations, choose drill bits with higher alloy hardness; for softer formations, choose drill bits with better wear resistance.

1. Optimization of Drilling Parameters:

• Drilling parameters include drill bit rotational speed, impact pressure, and flushing air volume. Reasonable drilling parameters can effectively extend the drill bit’s life. For example, appropriate impact pressure can improve drilling efficiency, but excessively high impact pressure may cause premature fatigue damage to the drill bit.

1. Maintenance of Good Lubrication and Cooling:

• During operation, DTH drill bits generate a significant amount of heat. A good lubrication and cooling system can effectively reduce the drill bit’s temperature and extend its life. Regularly check and maintain the lubrication and cooling system to ensure it operates normally.

1. Regular Inspection and Maintenance:

• Regularly inspect the wear condition of the drill bit and promptly replace severely worn parts. During maintenance, ensure to clean rock chips and dirt from the drill bit to prevent them from affecting the normal operation of the drill bit.

1. Training Operators:

• The skill level and experience of operators greatly influence the service life of drill bits. Through training, improve the technical level of operators so they can adjust drilling parameters according to actual conditions and avoid improper operations that lead to drill bit damage.

1. Use of High-Quality Drill Pipes and Accessories:

• High-quality drill pipes and accessories can reduce vibration and impact during drilling, improve drill bit stability, and thus extend its life.

1. Adoption of Advanced Drilling Techniques:

• Adopting advanced drilling techniques, such as micro-vibration drilling and intelligent drilling, can effectively reduce drill bit wear and extend its life.

By implementing the above measures, the service life of DTH drill bits can be significantly increased, reducing drilling costs and improving work efficiency.

Choosing the appropriate DTH (Down-The-Hole) drill bit involves considering multiple factors to ensure optimal performance and the longest lifespan for the specific application. Here are some key steps and considerations in selecting the right DTH drill bit:

1. Application and Operating Conditions Analysis:

• Application Area: Determine whether the drill bit will be used for mining, geological exploration, or oil drilling.
• Rock Type and Hardness: Different rock types and hardness levels affect drill bit selection. Hard alloy drill bits are suitable for hard rock, while soft rock might require different types of drill bits.

1. Drill Bit Type and Design:

• Type of Drill Bit: DTH drill bits come in various types, including percussion drill bits and rotary drill bits. Choose the appropriate type based on the specific application.
• Drill Bit Design: Consider design parameters of the drill bit such as geometry, cutting angle, and helix angle, as these will affect the cutting efficiency and chip removal capability.

1. Material Selection:

• Hard Alloy: Hard alloy drill bits are typically used for hard rock drilling. Selecting high-quality hard alloy materials can improve the wear resistance and service life of the drill bit.
• Coating Technologies: Some drill bits have surface coatings, such as titanium alloy coatings, to increase hardness and wear resistance.

1. Drill Bit Size and Specifications:

• Diameter Selection: Choose the appropriate drill bit diameter based on the required hole size.
• Length Selection: Consider the total length and effective cutting length of the drill bit to ensure it can reach the desired drilling depth.

1. Technical Parameters and Performance Indicators:

• Cutting Efficiency: Select drill bits with high cutting efficiency to complete drilling tasks in less time.
• Durability and Lifespan: Choose drill bits with high durability and long lifespan to reduce replacement frequency and operational costs.

1. Brand and Quality Certification:

• Well-known Brands: Choose drill bits from well-known brands and those that have undergone quality certification to ensure their performance and reliability.
• User Reviews and Reputation: Refer to reviews and reputation from other users to help you make more informed decisions.

1. Price and Cost-Effectiveness:

• Cost Analysis: Consider the procurement cost and operating cost of the drill bit, selecting products with good cost-performance ratios.
• After-sales Service and Support: Ensure the supplier provides good after-sales service and technical support so that any issues during use can be resolved promptly.

1. Adaptability and Compatibility:

• Equipment Compatibility: Ensure the selected drill bit is compatible with existing drilling equipment to avoid additional costs and delays due to incompatibility.
• Operating Conditions: Take into account the on-site operating conditions, such as temperature and humidity, and select drill bits that can adapt to these conditions.

By comprehensively considering these factors, you can select the most suitable DTH drill bit to enhance drilling efficiency and reduce costs.

If you need to purchase DTH drill bits, please choose Shandike company, the quality and price are both suitable

DTH (Down-The-Hole) drill pipe is a specialized type of drill pipe used in DTH drilling applications. It is designed to withstand the high impact forces generated by the DTH hammer and to provide efficient energy transfer from the hammer to the drill bit. Here are some key points about DTH drill pipes:

1. Construction: DTH drill pipes are typically made from high-grade steel, such as chromium-molybdenum steel, which offers high fatigue strength and excellent wear resistance. The thread area and main drill pipe body are often joined using an automated welding process.
2. Applications: DTH drill pipes are used in various drilling projects, including blast hole drilling, water well drilling, mining, marble quarrying, and other construction projects. They are compatible with DTH drilling bits and are known for their high efficiency and constant penetration rate regardless of hole length.
3. Standards and Certifications: DTH drill pipes may comply with various international standards such as API (American Petroleum Institute), AISI (American Iron and Steel Institute), BS (British Standards), ANSI (American National Standards Institute), JIS (Japanese Industrial Standards), GB (Chinese National Standards), GOST (Russian State Standards), ASTM (American Society for Testing and Materials), and DIN (German Institute for Standardization). They may also be certified by organizations such as CE, ISO 9001:2000, ISO 9001:2008, and RoHS.

1. Manufacturing Process: The manufacturing process for DTH drill pipes may involve forging and other advanced technologies such as friction welding, nitriding, and upsetting to ensure high strength and durability.
2. After-sales Service: Reputable suppliers often provide after-sales services such as online support, warranties, and compliance with relevant acts, regulations, and government guidelines.
3. Competitive Advantage: DTH drill pipes offer several advantages over other types of drill pipes, including the ability to reach deeper hole depths, higher penetration rates, and reduced energy loss due to the direct contact between the piston and the drill bit.
4. Specifications: DTH drill pipes come in various lengths, diameters, and thread types to meet different drilling requirements. Common materials include carbon steel and alloy steel, and surface treatments such as polishing and spray-painting may be applied to enhance corrosion resistance and durability.
5. MOQ (Minimum Order Quantity): The minimum order quantity for DTH drill pipes can vary depending on the supplier. Some suppliers may not have a strict MOQ for testing and trial orders, while others may require a certain number of pieces.
6. Export Experience: Suppliers with significant export experience and verified business licenses are often preferred due to their reliability and quality standards.
7. Cost: The cost of DTH drill pipes can vary based on factors such as material, length, diameter, and manufacturing technology. It’s important to find the best solution with the most reasonable cost to avoid unnecessary expenses and ensure cost-effectiveness.

If you need to purchase DTH drill pipes, please choose Shandike company, the quality and price are both suitable

Reverse Circulation (RC) Drilling Rods: Introduction, Characteristics, Applications, and Comparative Analysis

Reverse Circulation (RC) Drilling Rods, also known as double-wall or double-layer drill rods, offer a unique and efficient drilling solution. Here’s a detailed introduction to their structural characteristics, functions, applications, specifications, selection considerations, and a comparative analysis with normal circulation drilling rods.

Structural Characteristics

RC drill rods feature a double-layer structure comprising an inner pipe and an outer pipe. This design creates an annular gap, which serves as a passage for pumping flushing media (like water or mud) to the hole bottom during drilling operations. The inner and outer pipes are connected using specific methods to ensure effective transmission of torque and pressure. The outer tube typically employs threaded connections, while the inner tube often uses a plug-in design with a sealing device at the connection point.

Functions and Applications

The primary function of RC drill rods is to deliver flushing media to the hole bottom via the annular gap. This media cools the drill bit, carries away drilling debris, and maintains hole wall stability. Simultaneously, the inner tube acts as a return conduit for the flushing media and drill cuttings, transporting them back to the surface. RC drill rods are extensively used in geological and mineral exploration, as well as hydrological well drilling. Their efficient and stable drilling performance makes them indispensable for boreholes with diameters of 84mm and 93mm, reaching depths of up to 300m.

Specifications and Parameters

RC drill rods come with varying specifications and parameters depending on the manufacturer and application. Common specifications include outer tube outer diameters (O.D.) ranging from 88.9mm, 101.7mm, to 114.3mm, inner tube inner diameters (I.D.) varying based on the outer diameter and wall thickness (commonly 38.1mm, 50.8mm, and 63.5mm), standardized wall thicknesses for both inner and outer pipes, and customizable lengths to fit drilling requirements (common lengths include 3m, 4.5m, and 6m).

Selection and Purchase

When choosing and purchasing RC drill rods, consider factors such as drilling requirements (including wellbore diameter, drilling depth, and geological conditions), manufacturer reputation (opt for manufacturers with a solid reputation and extensive experience), and price and cost-effectiveness (ensure quality while considering the price factor).

Comparative Analysis with Normal Circulation Drilling Rods

1. Circulation Method of Mud or Flushing Fluid
   • RC Drilling Rod: Mud or flushing fluid flows down from the annular gap between the outer pipe and the hole wall to the bottom of the hole. After mixing with drilling slag, the mud returns to the surface through the inner pipe, forming a reverse circulation.
   • Normal Circulation Drilling Rod: Mud or flushing fluid flows down through the inner cavity of the drill rod to the bottom of the hole. After suspending the mud at the bottom and carrying drilling debris, it returns to the surface through the annular gap between the drill rod and the hole wall, forming a positive circulation.
2. Pore Formation Efficiency
   • RC Drilling Rod: Drilling debris is quickly carried away by the mud returning through the inner pipe, reducing the possibility of repeated crushing and accidents inside the hole. RC drilling is highly efficient, especially suitable for rapid drilling and stable formations.
   • Normal Circulation Drilling Rod: Mud carrying drilling debris back through the annular gap may form a mud film on the borehole wall, which helps protect the wall but reduces borehole formation efficiency. Normal circulation drilling is suitable for projects requiring good wall protection.
3. Wall Protection Effect
   • RC Drilling Rod: The rapid upward movement of mud after mixing with drilling slag at the bottom of the hole results in a relatively small scouring effect on the hole wall, potentially reducing wall protection compared to normal circulation drilling. Additional wall protection measures may be required in some formations.
   • Normal Circulation Drilling Rod: Mud stays in the hole for a longer time and forms a thick mud film on the hole wall, providing good wall protection. Normal circulation drilling is suitable for unstable formations or projects requiring long-term stable borehole walls.

In summary, Reverse Circulation RC Drilling Rods hold significant application potential and market demand in geological and mineral exploration. When selecting and purchasing, comprehensive consideration of factors like drilling needs, manufacturer reputation, and price is crucial to ensure the drill rods meet actual operational requirements.

Rock drilling thread extension steel bars encompass various types such as extension rods, MF rods, light extension drill rods, drifter rods, and shank adapter drill rods. These can also be termed threaded drill rods or threaded pipes, featuring either single-ended or double-ended threading, and coming in hollow round or hollow hexagonal shapes. They constitute a vital component of threaded connection drilling tools and equipment. Connected to top hammer rock drill rigs via shank adapters and couplings, and to drill bits via threads on the other end, these threaded rods can be linked with other drill rods to form a complete set of threaded connection drilling tools. They can be paired with a single shank adapter and drill bit, or multiple adapters and bits, and are suitable for shallow holes and small-diameter rock drilling. With a wide range of applications, high drilling speeds, minimal impact energy transmission loss, and enhanced drilling efficiency, they facilitate drilling mechanization and improve drilling conditions. Consequently, thread extension drill rods occupy a significant proportion in the overall drilling industry.

Rock drilling thread extension steel bars must possess high fatigue strength, elasticity, rigidity, and toughness, although strength and toughness are often in conflict. The threads at both ends of the rods are crucial for forming a complete set of drilling tools. Material properties can only be fully utilized after heat treatment, making material selection and heat treatment processes equally important.

M/F extension rods, a type of round or hexagonal threaded drill rod with one end as an internal thread and the other as an external thread, are often referred to as MF drill rods internationally. They facilitate quick rod connections with coupling sleeves, reducing the weight and length of the complete drilling tools, shortening threaded connections, and minimizing thread joint impact energy loss. This enhances ease of loading and unloading, and significantly increases drilling speed and efficiency.

Specifications include:

• Threaded Connections: R22, R25, R32, R38, T38, T45, T51, T60, etc.
• Diameters: OD32, OD38, Hex32, Hex35, etc.
• Lengths: 800-6000mm.
• Packaging: Plywood cases or wrapped in plastic knitting and packed into bundles, or as per customer requests.

In mining operations, GT60 MF drill rods are widely used for tunnel excavation, ore mining, and other tasks. Similarly, in geological exploration, geotechnical engineering, and other fields, GT60 MF drill pipes are commonly employed for rock drilling operations.

T51 Drilling Tools MF Rod: A Comprehensive Guide

The T51 Drilling Tools MF Rod stands as a testament to high-performance drilling technology. Here, we delve into a detailed analysis of this remarkable tool:

1. Product Overview

Introducing the T51 rapid drilling MF rod, a precision-engineered, high-performance tool tailored for drilling operations across diverse conditions. It harmonizes advanced materials with cutting-edge manufacturing processes, ensuring robust performance and longevity in the face of challenging drilling environments.

2. Product Features

• Strength in Structure: Crafted from high-strength alloy, the T51 MF Rod withstands immense pressure and torque during drilling, facilitating seamless operations.
• Wear Resistance: A specialized heat treatment process significantly boosts the rod’s surface hardness, enhancing its wear resistance and prolonging its service life.
• Precision Machining: Precision machining techniques guarantee dimensional and shape accuracy, enhancing drilling accuracy and operational efficiency.
• Versatile Specifications: The T51 MF Rod comes in various lengths and diameters, catering to different drilling depths and aperture requirements.

3. Application Domains

The versatility of the T51 Drilling Tools MF Rod spans numerous industries:

• Mining: It drills into ores and rocks, aiding in the assessment of mineral reserves and grades.
• Geological Exploration: Underground rock layers are drilled to uncover geological structures and mineral distributions.
• Tunnel Engineering: The rod drills through tunnel-front rock and soil, evaluating construction feasibility and safety.
• Well Drilling: It taps into underground water layers for clean drinking water or agricultural irrigation.

4. Purchase Recommendations

When acquiring the T51 Drilling Tools MF Rod, consider the following:

• Assess Your Needs: Clarify your drilling specifications, including depth, aperture size, and geological conditions.
• Choose Trusted Brands: Opt for products from reputable brands and manufacturers to ensure quality and performance.
• Certification Check: Verify relevant quality and safety certifications for compliance and safety assurance.
• Consult Experts: Seek advice from professionals or drilling engineers for informed purchasing decisions.

Additional Components

The T51 Drilling Tools family extends beyond the MF Rod, encompassing:

• Button Bits: Including Retrac button bits, reaming bits, and sizes ranging from T51-89mm to T51-127mm, featuring spherical or parabolic buttons.
• Dome Bits for Reaming: Specifically, the T51-152mm with spherical or parabolic buttons.
• Extension Rods: Available in lengths from 3050mm to 6095mm, with a flushing hole of 21.50mm and wrench flat of 45mm.
• M/F Rods: Lengths vary from 1525mm to 6095mm, also featuring a flushing hole of 21.50mm.
• Guide Rods and Tubes: Guide rods in 1830mm and 3660mm lengths, and guide tubes measuring 3660mm, with diameters of D76mm for bits 89-102mm and D87mm for bits 102-127mm.

In summary, the T51 Drilling Tools MF Rod exemplifies high-performance drilling, characterized by its strength, wear resistance, precision, and versatility. Its widespread application across industries underscores its reliability. When purchasing, ensure you align your needs with reputable brands, quality certifications, and expert advice.

SHANDIKE presents a comprehensive range of tapered rods and bits tailored to meet all your hand-held pneumatic drilling requirements. For mining, quarrying, and tunneling applications, we offer robust tools capable of enduring the harshest rock drilling conditions.

Our extensive product line enables you to select the precise configuration that suits your drilling operations. Our tapered bits and rods come in diverse taper angles, and we provide rods with a variety of shank configurations and steel hex diameters. Additionally, our tapered bits feature both cross and button designs.

SHANDIKE’s tapered rods are available with either high-frequency or full carburization heat treatments to ensure durability.

Intraset

used for shaft sinking, tunnel driving and mining where small holes are desired.

Tapered Equipment

used in shaft sinking, tunnel driving and mining where small holes are desired. The objective in using tapered drill

steel and bits is to achieve the full utilization of the drill steel. With integral drill steel if the chisel wears or breaks the entire unit is discarded,whereas the tapered drill bits can be replaced or the steel reshanked or even retapered.

Rope Thread

used for underground mining in production drilling, longhole drilling, and roof bolting applications

Choosing the right carbide:

The larger the volume of carbide, the more aggressive the bit. The more aggressive carbides assist movement of the chips away from the face as there is more room for airflow on the face of the bit.These more aggressive bits help to break out larger chips, which increases the penetration rate.There is also a greater volume of carbide to wear away which can lead to longer bit life.

The application of down the hole drilling tools in South Africa is mainly reflected in two aspects: mining and infrastructure construction.

1、 Mining exploitation
Improve mining efficiency:
South Africa is an important mineral resource country on the African continent, with abundant gold, diamond, and coal mines. Down the hole drilling tools have become important tools in South African mining due to their efficient and precise drilling capabilities.
Down the hole drilling tools can quickly drill blasting holes of the required diameter and depth, providing strong support for subsequent blasting operations and significantly improving the efficiency of mineral resource extraction.
Adapt to complex geological conditions:
The geological conditions in South Africa are complex and diverse, and down the hole drilling tools have strong drilling capabilities and adaptability, enabling drilling operations in formations of different hardness and rock types.
For example, in some gold mining operations in South Africa, down the hole drilling tools can successfully handle hard rock types such as granite and basalt, ensuring smooth drilling operations.

Reduce mining costs:
The automation level of down the hole drilling tools is relatively high, which can reduce labor costs and safety risks.
Meanwhile, due to its efficient drilling capability, it can shorten the mining cycle and thus reduce mining costs.
2、 Infrastructure construction
Tunnel construction:
Tunnel construction is an important part of infrastructure development in South Africa. Down the hole drilling tools play an important role in tunnel construction, enabling efficient drilling operations and providing strong support for tunnel excavation and support.
Foundation treatment:
In the treatment of building foundations, down the hole drilling tools can drill grouting holes or anchor holes with the required aperture and depth, providing strong support for the reinforcement and stability of the foundation.

Other applications:
Down the hole drilling tools can also be used for drilling drainage holes and ventilation holes, providing comprehensive support for infrastructure construction in South Africa.

3、 Classification and characteristics of down the hole drilling tools
Downhole drilling tools can be classified into three types based on tonnage and perforation diameter: light, medium, and heavy. Lightweight down the hole drill has a self weight of less than 10 tons, a perforation diameter of about 100 millimeters, and is mostly used in small and medium-sized open-pit mines; Medium sized down the hole drill has a self weight of 10-15 tons and a perforation diameter of about 150 millimeters, suitable for perforation in medium hard or hard rocks; The heavy-duty down the hole drill weighs about 30 tons and has a perforation diameter of about 200 millimeters. It is used for perforation of hard or extremely hard rocks and is suitable for large open-pit mines.

The main characteristics of down the hole drilling tools are high efficiency, low noise, and environmental friendliness. It uses compressed air to drive the drill bit for drilling operations, which has the advantages of fast drilling speed and good drilling quality. At the same time, the down the hole drilling tool can flexibly switch between different driving modes (such as hydraulic, internal combustion, electric, etc.) according to working conditions and requirements to achieve the best working effect.

Specifications

Drifting&Tunneling: R25 (1) “may refer to the use of a specific specification (R25) tool or equipment for drifting (horizontal or inclined tunnel excavation) and tunnel excavation operations in mining or tunnel engineering.

Thread button bits made with high quality of best quality alloy steel bar and tungsten carbides, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy.

Button bit

Drill rod

Coupling

Reaming Drilling Tools

Usage:
Reaming drilling tools are utilized after a pilot hole has been drilled to a specified depth, when a larger diameter needs to be reamed out.

Products Manufactured:

• Pilot reaming drilling tools
• Domed reaming button bits
• Adapter reaming button bits

Composition:
Pilot reaming drilling tools are comprised of pilot adapters and reaming button bits. Both domed reaming button bits and adapter reaming button bits feature a one-piece design.

Parameters:

• Thread size: R25, R28, R32
• Pilot adapter head diameter: Ranges from 26mm to 40mm
• Pilot bit degree: 6° or 12°
• Reaming button bit diameter: Ranges from 64mm to 102mm
• Reamer button bit degree: 6° or 12°

Features:

• Alloy buttons are hot mounted into the drill bit, guaranteeing precision and durability.
• Reliability is ensured through the use of premium drill bit materials and alloy buttons.
• Various types are designed to cater to different drilling scenarios and rock conditions.
• Offers high-speed drilling and efficiency.
• Cost-effective, with good performance at a reasonable price.

Applications:
Suitable for drilling works involving blasting duties in tunneling, construction, mining, quarrying, and other relevant industries.

Pilot Bits 6°, 12°

Reammer Button Bits 6°, 12°

About Drifter Rod R32 – Hex 28 – R25

1. Product Specifications and Structure

The Drifter Rod R32 – Hex 28 – R25 features a unique specification: R32- Hex 28- R25. Here, R32 and R25 signify the thread specifications on both ends of the drill pipe, respectively. The notation Hex 28 indicates that the middle portion of the drill pipe adopts a hexagonal (Hex) structure, with a key dimension or characteristic related to the number 28, which could pertain to diameter, length, or another dimensional parameter as specified in the product description. Structurally, one end of the drill rod is equipped with an R32 thread, while the other end features an R25 thread, facilitating compatibility with various equipment and tools of differing specifications. The hexagonal mid-section enhances grip and handling, simplifying rotation and advancement during drilling operations.

2. Product Features

• High Strength: Constructed from high-strength alloy steel or equivalent materials, the rod can withstand significant torque and tension, ensuring stability and durability throughout the drilling process.
• High Precision: The threaded sections are precision-machined to guarantee a secure, stable connection with compatible equipment, minimizing the risk of loosening or detachment during drilling.
• Wide Applicability: Suitable for diverse drilling scenarios, including mining, tunnel excavation, and slope stability applications. The hexagonal design also facilitates easy connection and operation with manual or electric tools.

3. Application Scenarios

• Mining: In mining operations, the R32 – Hex 28 – R25 drift rod can be utilized for drilling ore cores or executing other mining-related tasks, thereby enhancing work efficiency.
• Tunnel Excavation: In tunnel engineering projects, this drift rod is employed to drill holes in tunnel walls for anchor support or other necessary operations, ensuring structural stability of the tunnel.
• Slope Treatment: During slope treatment, the R32 – Hex 28 – R25 drift rod can be used to drill drainage or grouting holes, thereby improving slope stability and mitigating the risk of geological hazards such as landslides.

4. Precautions for Use

• Inspection and Maintenance: Prior to use, the drift rod should be thoroughly inspected to ensure that its surface is free from cracks, wear, or other defects. Regular maintenance and upkeep are essential to prolong the service life of the rod.
• Correct Operation: When operating the drift rod for drilling purposes, adhere to relevant operating procedures and safety guidelines. Avoid applying excessive force or engaging in improper operations that may result in damage to the drill rod or personal injury.
• Adaptation Equipment: Choose equipment and tools that match the specifications of the drift rod for connection and operation. Ensure that connections are tight and stable to prevent loosening or detachment during the drilling process.

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