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High Strength Tapered Drill Pipe | Mining & Construction – Jiufu

Jiufu tapered drill pipe (internal thread/circumscribed round types) – high connection reliability, easy installation & strong versatility for mining/construction. Alloy steel material, 5000+ fatigue test passed. Get quote now!


Details

Tapered Drill Pipe – Durable, Versatile Drilling Solution for Mining & Construction Projects

 

 Product Overview

Tapered drill pipe is a core drilling accessory widely applied in mining exploration, tunnel construction, foundation engineering, and small-to-large scale excavation projects. With its scientifically designed tapered structure (upward tapering shape) and flat root connection, it ensures stable power transmission, easy assembly, and adaptability to complex working conditions. Jiufu’s tapered drill pipe is manufactured with high-precision processing technology, adhering to international quality standards to meet the rigorous requirements of high-intensity drilling and long-term operation.

 

Parameter Specification
Material Alloy Steel (high-strength) / Carbon Steel (cost-effective)
Taper Ratio 1:10 / 1:12 (customizable per project needs)
Connection Type Internally Threaded Root Flat / Circumscribed Round Root Flat
Tensile Strength ≥ 800 MPa (alloy steel) / ≥ 600 MPa (carbon steel)
Maximum Drilling Depth Up to 300m (assembled in sections)
Applicable Rig Models Compatible with most mainstream drilling rigs (e.g., Atlas Copco, Sandvik)
Thread Standard API / ISO (customizable for specific markets)
Weight per Section 15-35kg (varies by length: 1.5m/2m/3m)
Working Temperature Range -20℃ ~ 80℃
Tapered drill pipe

 Types of Tapered Drill Pipe

Jiufu offers two types of tapered drill pipe tailored to different working intensity and environmental requirements, ensuring optimal performance in diverse scenarios:

1. Internally Threaded Tapered Drill Pipe

  • Design Highlight: The internal thread root flat mouth is engineered to protect the connection area from wear and impact, enhancing structural stability under high pressure.
  • Key Advantages: Excellent load-bearing capacity, resistance to loosening during high-speed rotation, and long service life in harsh conditions.
  • Applicable Scenarios: High-intensity mining projects (e.g., iron ore, coal mine extraction), deep foundation drilling for large buildings, and hard rock drilling where stability and durability are critical.

2. Circumscribed Round Tapered Drill Pipe

  • Design Highlight: The circumscribed round root flat mouth features a simplified structure, enabling flexible adjustment during excavation and reducing resistance in soft substrates.
  • Key Advantages: Lightweight, quick plug-in operation, and cost-effective for low-load tasks.
  • Applicable Scenarios: Small-scale construction projects (e.g., foundation pit drilling, road repair), soil layer drilling, and environments where frequent disassembly is required.
  • Case Reference: Used in a residential building foundation project in Southeast Asia, it reduced installation time per section to 3 minutes, cutting overall construction time by 15%.

Product Advantages of Jiufu Tapered Drill Pipe

Compared with ordinary drill pipes, our tapered drill pipe stands out with three core advantages, verified by tests and project applications:

1. Superior Connection Reliability

  • The tapered structure and flat root design ensure tight combination between sections, passing 5000+ fatigue tests without loosening.
  • Effectively reduces safety accidents and operational errors caused by drill pipe loosening – proven to lower project downtime by 30% in mining applications.

2. Quick & Easy Plug-In Operation

  • Simplified structure and reasonable flat root design enable fast installation and disassembly, no professional technical team required.
  • Compared with straight drill pipes, assembly time per section is shortened by 40% (average 3-5 minutes/section), improving construction efficiency.

 3. Strong Versatility & Compatibility

  • The flat root end is compatible with various drilling accessories (drill bits, adapters, couplings) from mainstream brands.
  • Suitable for multiple working environments (mining, construction, road repair, foundation engineering) and substrates (hard rock, soil, gravel), meeting diverse project needs.
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Contact Us for Custom Solutions
Hebei Jiufu Industrial And Mining Parts Co., Ltd.is a professional tapered drill pipe supplier with 10+ years of experience in the mining and construction industry. We provide customized solutions based on your project requirements (material, taper ratio, length, thread type).
Get a Free Quote: Fill out the form below or send an email to [email protected]
Technical Support: Call +86 155 3304 0524 for 24/7 professional consultation
Factory Visit: Welcome to visit our manufacturing base in China to inspect production processes and quality control.
Call to Action: Let Jiufu’s tapered drill pipe enhance your project efficiency – contact us today for a tailored solution!
Website: https://www.cnrockbolt.com

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