API Standard DTH Drill Rods

DTH drill rods are manufactured to API standards for rock drilling applications. These drill rods facilitate efficient energy transfer to the drill bit, enhancing drilling performance.

Shandong Jinquan API Standard REG DTH drill rod, DTH drill pipes - Image 1

Technical Specifications

Product Overview

High-Performance DTH Drill Rods

These professional-grade Down-The-Hole (DTH) drill rods are engineered for demanding rock drilling and piling applications in both mining and construction sectors. Manufactured using advanced friction welding technology and rigorous quality control, these pipes ensure structural integrity and optimal energy transfer. The inclusion of API-compliant connections and nitrogen-treated threads enhances operational reliability and ease of handling in harsh drilling conditions.


DTH drill pipe and rod overview
Professional friction-welded DTH drill pipes with API standard connections.

Technical Specifications

Available Outer Diameters

  • 76mm
  • 89mm
  • 102mm
  • 114mm

Available Lengths

  • 1000mm
  • 1500mm
  • 2000mm
  • 3000mm
  • 6000mm

Connection Types
2 3/8" API Reg2 7/8" API Reg3 1/2" API Reg4 1/2" API Reg2 3/8" API IF3 1/2" API IF

Side profile of API standard DTH drill rod
Precision-engineered rod showing high-quality thread finish.

Quality & Manufacturing

Production Technology

Friction WeldingIntegral Heat TreatmentNitrogen Thread Treatment

Quality Assurance Testing

  • Metallography detection
  • Hardness test
  • Magnaflux inspection
  • Ultrasonic flaw detection
  • Tensile test
  • Impact test

Close up of DTH drill rod threading
Nitrogen-treated anti-adhesion threads designed for easier handling.

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