The ROSCHEN Customized DTH Button Bits for Reverse Circulation (RC)
drilling are precision-engineered drilling consumables designed to
deliver maximum penetration rates and extended service life in the
most demanding geological formations. Manufactured from premium
alloy steel forgings and fitted with high-grade tungsten carbide
inserts, these DTH button bits provide exceptional wear resistance
and impact durability across a comprehensive range of drilling
diameters. Each button bit is CAD-designed using advanced geometric
modeling software and CNC-machined to exacting tolerances, ensuring
perfect bit body geometry and consistent performance. The bits
undergo multiple heat treatment cycles to achieve optimal hardness
distribution, followed by surface compression treatment for
enhanced fatigue resistance under repeated high-impact loading
conditions. Fully compatible with all major DTH hammer brands
including Epiroc, Atlas Copco, and the complete ROSCHEN hammer
series, these customized bits represent the ideal balance of
quality, performance, and cost-effectiveness for professional
drilling operations worldwide.
Key Features- Premium Tungsten Carbide Inserts: Each button bit features high-grade tungsten carbide buttons with
optimized cobalt binder content, available in hemi-spherical,
parabolic, and ballistic profiles to match specific rock formation
characteristics.
- Advanced Face Design Options: Select from flat face configuration for maximum penetration in
hard competent rock, convex face for improved gauge protection in
abrasive formations, or concave face for enhanced flushing in soft
fractured ground.
- Multi-Brand Shank Compatibility: Precision-ground shanks are engineered to fit DHD, COP, QL, SD,
Mission, and BR series hammers, allowing customers to use a single
source for bits across mixed hammer inventories.
- Superior Flushing Design: Optimized flushing groove geometry and strategically positioned
flushing holes ensure efficient cuttings removal from the hole
bottom, preventing bit balling and maintaining consistent
penetration rates.
- Surface Compression Treatment: Post heat-treatment surface compression process introduces
beneficial residual compressive stresses in critical wear areas,
significantly increasing fatigue life and resistance to
impact-related cracking.
- Custom Manufacturing Capability: Full customization service available for non-standard diameters,
special shank configurations, unique face designs, and
application-specific carbide grade selection to meet specialized
drilling requirements.
Technical Specifications| Parameter | Specification |
|---|
| Bit Type | DTH Button Bits for Reverse Circulation Drilling |
| Diameter Range | 105-254 mm (4-8 inch) |
| Face Design Options | Flat Face, Convex Face, Concave Face |
| Carbide Insert Profiles | Hemi-spherical, Parabolic, Ballistic |
| Body Material | Premium Alloy Steel (AISI 4340 / SNCM 439 Equivalent) |
| Button Material | Tungsten Carbide (YG8/YG10/YG11C Grades) |
| Heat Treatment | Quenched and Tempered, Surface Hardness 40-46 HRC |
| Shank Compatibility | DHD340, DHD350, DHD360, DHD380, COP44, COP54, COP64, COP84 |
| Additional Shank Fit | QL40, QL50, QL60, QL80, SD4, SD5, SD6, SD8 |
| Working Pressure | Low Pressure (0.7-1.5 Mpa) and High Pressure (1.5-2.5 Mpa) |
| Drilling Application | Hard and Medium-Hard Rock Formations |
| Manufacturing Process | Forged Body, CNC Machined, Multi-Cycle Heat Treated |
| Quality Standard | ISO Certified Manufacturing Facility |
ApplicationsROSCHEN customized DTH button bits for reverse circulation drilling
are purpose-built for mineral exploration programs where accurate
ore grade assessment depends on uncontaminated sample recovery
through various geological formations. In open-pit mining
operations, these bits deliver consistent performance in blast hole
drilling applications across diverse rock types from soft limestone
to extremely hard banded iron formations. The bits are extensively
used in water well drilling projects where formation stability and
precise lithological logging are critical for well design and
screen placement decisions. Geotechnical investigation contractors
rely on these RC bits for site characterization drilling where core
sample integrity directly influences foundation design parameters
and construction safety assessments. For quarry operations
requiring efficient production drilling, the optimized button
configurations and face designs provide the ideal balance of
penetration rate and bit life tailored to specific rock properties.
Environmental drilling programs also benefit from the clean sample
recovery characteristics of reverse circulation bits when
monitoring well installation requires accurate subsurface
profiling.
Packaging and Quality AssuranceEvery ROSCHEN DTH button bit undergoes comprehensive quality
inspection at multiple production stages, including incoming raw
material certification, in-process dimensional verification during
CNC machining, post heat-treatment hardness testing, and final
visual and dimensional inspection before packaging. Each bit is
individually wrapped in corrosion-inhibiting VCI paper and secured
in custom-fitted foam compartments within export-grade polywooden
shipping boxes, providing maximum protection against handling
damage and environmental exposure during international transit.
Complete shipment documentation includes material test
certificates, dimensional inspection reports, and a detailed
packing list for customs clearance. ROSCHEN maintains comprehensive
technical support services including application engineering
consultation to help customers select optimal bit configurations
for specific drilling conditions, on-site performance monitoring
recommendations, and timely spare parts availability through
regional distribution centers. Our ISO certified quality management
system ensures consistent product performance across all production
batches, giving drilling contractors confidence in every bit
delivered to the drill site.
As a leading manufacturer of rock drilling consumables with
extensive experience serving the global mining and construction
industries, ROSCHEN is committed to providing drilling solutions
that combine technical excellence with competitive factory-direct
pricing. Whether you require standard catalog items or fully
customized bit configurations for unique drilling challenges, our
engineering team is ready to collaborate on developing the optimal
solution for your specific application. Contact our sales
department today to discuss your reverse circulation drilling
requirements and receive a detailed quotation including delivery
timelines to your project location.