Retrac Top hammer drill bits

Core Advantages: Materials and Craftsmanship for Superior Performance
The outstanding performance of the MININGWELL top hammer threaded button drill bit stems from rigorous control over material selection and production processes. It utilizes high-quality alloy steel and tungsten carbide as its core materials. The alloy steel, after special treatment, possesses exceptional toughness and fatigue resistance, capable of withstanding the high-frequency impact and wear experienced during rock drilling. The tungsten carbide button teeth, with their exceptional hardness, effectively break hard rock and reduce drilling resistance.

A specialized heat treatment process further enhances the drill bit's overall mechanical properties. This enhanced toughness allows it to adapt to complex rock formations and prevents breakage due to impact. Furthermore, the optimized surface hardness reduces energy loss, resulting in more efficient drilling. Data shows that under comparable operating conditions, this drill bit achieves a 15%-20% lower energy loss rate than conventional products, significantly improving single-operation time and drilling efficiency. Rich Specifications: Adaptable to Diverse Drilling Scenarios
To meet the drilling requirements of various projects for different hole sizes and lithology, MININGWELL top hammer threaded button drill bits offer a wide range of specifications, covering all drilling scenarios from soft rock to hard rock (solidity coefficient f=8-18). Key specifications and compatible scenarios are as follows:
1. Threaded Connection and Rock Drill Compatibility
The drill bits support a variety of thread types, including R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, and GT60. These precisely match rock drill pipes of the same specification, ensuring stable power transmission during drilling and preventing drilling deviations caused by loose connections. For example:
R32 Series: Head diameter 51mm-57mm, length 130mm, suitable for shallow hole drilling in soft and unconsolidated rock in small and medium-sized mines, such as pre-splitting holes in coal seams;
T45 Series: Head diameter 72mm-115mm, length 160mm-175mm, with various head shapes available, including a center drop face and a triangular face. Suitable for drilling in medium-hard rock (f=12-15), commonly used in highway subgrade blasthole construction;
GT60 Series: Head diameter 102mm-140mm, length 212mm-225mm, featuring a flat triangular face design and 9*Φ13-Φ16 guide balls. Designed for deep drilling in hard rock (f=16-18), such as deep metal mine mining and tunnel blasthole drilling. 2. Head Design and Function Optimization
The head shape and hole layout are precisely designed based on drilling requirements:
Flat Face: Large contact area, strong drilling stability, suitable for vertical drilling in uniform rock formations, such as building foundation blasting holes;
Center Drop Face: A recessed center area allows for rapid removal of cuttings, reduces hole clogging, and is suitable for drilling in high-viscosity rock formations;
Triangle Face: Excellent stress concentration and high rock crushing efficiency, suitable for drilling in heterogeneous hard rock, such as granite and basalt;
Regarding hole placement, some models (such as the T51-115mm and ST58-115mm) are equipped with two end holes and two side holes to enhance chip removal and prevent overheating and wear of the drill bit due to chip accumulation. Customization: Precisely Matching Individual Needs
In addition to standard specifications, MININGWELL also offers customized drill bit services, adjusting key parameters based on the customer's specific drilling scenario to address drilling challenges under unique conditions:
Button Shape Customization: We offer both spherical and ballistic button shapes. The spherical shape is suitable for even wear, while the ballistic shape focuses on increased crushing force, suitable for extremely hard rock.
Head Shape Adjustment: We optimize the head curvature and number of end holes based on rock hardness and drilling application. For example, for inclined rock formations, we can customize an offset end face to reduce drill hole deviation.
Size Customization: We support customizing non-standard head diameters and lengths. For example, we can customize drill bits with diameters of 150mm or more for diversion hole drilling in large-scale water conservancy projects. Procurement and Guarantee: Professional service throughout the entire process.
To ensure a secure purchasing experience and guaranteed future use, MININGWELL has established a comprehensive supply chain and service system:
Low procurement threshold: The minimum order quantity is only 1 set, and small trial orders are supported, reducing procurement costs for small and medium-sized engineering teams.
Packaging and Delivery: Standard export packaging is waterproof and moisture-proof to prevent damage during transportation. Standard product delivery time is 7-10 days, and urgent orders can be expedited.
Flexible Payment: We accept a variety of payment methods, including L/C (Letter of Credit), T/T (Telegraphic Transfer), and Western Union, to meet trade needs in different regions around the world.
Quality Certification: Our products are CE and ISO certified, and our materials and craftsmanship meet international safety standards, ensuring they can be used with confidence in various industrial applications. Application Scenarios: Enabling Engineering Efficiency Improvements in Multiple Fields
With its excellent performance and flexible adaptability, MININGWELL top hammer threaded button drill bits are widely used in various engineering fields worldwide:
Mineral Mining: Used for drilling production holes and blastholes in gold, iron, and coal mines, adapting to ore bodies of varying hardness and improving mining efficiency;
Infrastructure Engineering: Used for roadbed blasting, bridge foundation reinforcement drilling, and advanced geological drilling in tunneling to ensure construction safety;
Water Conservancy and Hydropower: Used for reservoir dam reinforcement drilling and hydropower station diversion tunnel drilling to address complex rock formations;
Municipal Engineering: Used for surrounding rock reinforcement drilling in urban subway construction and pilot hole drilling in underground pipeline corridors, meeting the high demands of precision and efficiency in urban construction.
For both conventional and specialized applications, MININGWELL top hammer threaded button drill bits offer stable performance, a wide range of specifications, and customized services, providing engineering teams with efficient and reliable rock drilling solutions, helping to reduce construction costs and improve project efficiency.