Yanggu Henglong Construction Machinery Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 3000 per month |
| Delivery Time | 7-15 Days |
| Packaging Details | Wooden Boxes, Cardboard Boxes |
| Product Type | Integral Chisel Bit Drill Rods |
| Shank Type & Size | Hex19 / Hex22 / Hex25 shank, 108mm / 159mm shank length |
| Application | Mining, tunneling, quarrying, rock drilling |
| Bit Style | Chisel bit / Integral chisel bit |
| Shank Shape | Hexagonal shank ( Hex ) |
| Material | High - strength alloy steel |
| Processing | Integral forging , heat treated |
| Drilling Direction | Horizontal & vertical rock drilling |
| Matching Equipment | Rock drill , pneumatic hammer drill |
| Brand Name | HLDRILL |
| Certification | ISO 9001 Certified |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000 per month |
| Delivery Time | 7-15 Days | Packaging Details | Wooden Boxes, Cardboard Boxes |
| Product Type | Integral Chisel Bit Drill Rods | Shank Type & Size | Hex19 / Hex22 / Hex25 shank, 108mm / 159mm shank length |
| Application | Mining, tunneling, quarrying, rock drilling | Bit Style | Chisel bit / Integral chisel bit |
| Shank Shape | Hexagonal shank ( Hex ) | Material | High - strength alloy steel |
| Processing | Integral forging , heat treated | Drilling Direction | Horizontal & vertical rock drilling |
| Matching Equipment | Rock drill , pneumatic hammer drill | Brand Name | HLDRILL |
| Certification | ISO 9001 Certified | Place of Origin | CHINA |
Hex19 / Hex22 / Hex25 * 108mm / 159mm shank Integral Chisel Bit Drill Rods for Mining and Tunneling
Integral Head Chisel Bit Drill Steel Rods — also known as integral drill rods — are indispensable rock drilling tools in modern mining, tunneling projects, and infrastructure construction. Unlike traditional modular drilling assemblies, these tools integrate the drill rod and the bit into a single unit ; thanks to their exceptional energy transmission efficiency and durability, they hold a prominent position in the field of hard rock drilling.
Core Design and Process Features
Integral Forging : Crafted from high-quality alloy steel (such as 40SiMoCrNiMo or 55SiMnMo) through a single, integral forging process. This design completely eliminates the potential for energy loss or fracture at threaded connections, thereby ensuring highly efficient energy transmission.
Carbide Insert : The drill bit section typically features high-performance tungsten carbide inserts, configured in a "chisel-type" design. This cutting head boasts exceptional hardness and wear resistance, enabling it to effortlessly cut through rock formations.
Precision Heat Treatment : Through precise quenching and tempering processes, the rod body is endowed with superior fatigue resistance, effectively preventing deformation or brittle fracture under high-frequency impact loads.
Technical Specifications
Shank Size : Common sizes include Hex 19mm, Hex 22mm, and Hex 25mm ; lengths typically measure 82.5 mm, 108 mm, or 159 mm.
Head Diameter : Typically ranges from 23 mm to 45 mm, suitable for drilling small-diameter blast holes.
Effective Length : Covers an extremely wide range, from 400 mm to 9600 mm.
Applications
These drill rods are primarily designed for use with air-leg or handheld rock drills.
Their typical application scenarios include :
Mining and Quarrying : Drilling blast holes in granite and marble mines, as well as for rock splitting operations.
Tunneling and Water Diversion Projects : Conducting excavation drilling and rock bolting in confined spaces.
Transportation and Municipal Construction : Performing rock-breaking operations for road cutting, foundation drilling, and municipal pipeline excavation.
Performance Advantages
High Efficiency : Energy loss is minimized, resulting in drilling speeds that are faster than those of traditional threaded tools.
Cost-Effectiveness : Frequent bit replacement is eliminated, thereby reducing the cost per borehole.
Reliability : The simple structure minimizes downtime caused by stuck bits resulting from bit detachment or thread damage.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller,Other
Year Established:
2018
Total Annual:
10000000-30000000
Employee Number:
30~50
Ecer Certification：
Verified Supplier
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...
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