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{"title":"R25 Threaded Cross Drill Bit 50mm Diameter 42CrMo Alloy Steel For Rock Drilling","imgUrl":"https:\/\/img.chinax.com\/nimg\/ec\/67\/110149065041b6e1630f58f04e33-200x200-1\/r25_threaded_cross_drill_bit_50mm_diameter_42crmo_alloy_steel_for_rock_drilling.jpg","attrs":{"Brand Name":"HLDRILL","Model Number":"S1-50-R25-87","Place of Origin":"CHINA","Minimum Order Quantity":"10PCS"}}
R25 Threaded Cross-Shaped Cutting Structure for Blast Furnace Tapping
The R25 threaded cross drill bit is a critical consumable in the steelmaking industry's blast furnace tapping operation. Designed to withstand extreme conditions, it can handle high temperatures, abrasive refractory materials, and solidified slag layers. These drill bits are specifically used for drilling and maintaining tapholes, providing reliable performance, efficient drilling capabilities, and enhanced operational safety, perfectly matching the requirements of blast furnace tapping machines.
Key Advantages
Standard R25 Thread Connection
Utilizing the lightweight R-series thread standard, the drill bit is equipped with a precision threaded shank that connects securely to compatible R25 drill rods. This connection ensures high energy transfer and prevents slippage or detachment even under strong impacts and torque during high-pressure drilling. It is fully compatible with most mainstream blast furnace tapping machines (including pneumatic, hydraulic, and electric models), eliminating the risk of thread jamming or breakage due to incompatible specifications.
High-Performance Cross-Shaped Cutting Structure
The optimized cross-shaped geometry improves chip evacuation efficiency—drill cuttings and molten debris can be quickly expelled through the gaps and ventilation holes, preventing clogging and reducing drilling resistance.
Durable Body and High-Temperature Resistant Structure
The drill bit body is forged from 42CrMo alloy steel, a material known for its high tensile strength and thermal stability, which effectively resists deformation under alternating high-temperature conditions.
Single-Use Design for Enhanced Operational Efficiency
These drill bits feature a single-use design, eliminating the need for sharpening, refurbishing, and quality checks, thereby saving costs and reducing downtime. In blast furnace operations, tapping efficiency directly impacts production continuity. Worn drill bits can be replaced in minutes, minimizing equipment downtime and ensuring uninterrupted tapping operations. Each drill bit undergoes rigorous factory inspection before shipment to ensure consistent cutting edge accuracy and drilling performance, avoiding deviations caused by improper regrinding.
Application Scenarios and Value
These drill bits are ideal for drilling and maintaining blast furnace tapholes, efficiently penetrating refractory layers, taphole clay, and solidified slag. They are widely used in daily tapping operations, emergency taphole clearing, and routine furnace maintenance, effectively protecting the taphole clay from damage while ensuring uniform and straight boreholes—which is crucial for stable control of molten iron flow.
The R25 threaded cross drill bits combine the advantages of high temperature resistance, wear resistance, and easy replacement, reducing operating costs, labor intensity, and improving on-site safety. They are an ideal choice for steel plants seeking to optimize blast furnace tapping efficiency and reliability.
HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr... HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr...
