R780 Steel 2 7/8" API Mining Water Well Drill Rod - 3m, 1.5m, 2m Lengths with 8.38mm Wall Thickness
Price:
Negotiation
MOQ:
Negotiation
Delivery Time:
Within 7-12 days
Brand:
ShiTan
Product Description
R780 Steel API Mining Water Well Rock Drilling Rod
High-performance R780 steel drill rods designed for mining and water well drilling applications, available in multiple lengths including 3m, 1.5m, and 2m options with API standard connections.
Product Specifications
| Parts Name | H22 tapered tools |
|---|---|
| Application | Ore Mining & Water Well Drilling |
| Tapered Types | 7°, 11°, 12° |
| Weight Range | 2.2-25kg |
| Length Range | 610-8000mm |
Technical Parameters
| Serial No. | Pipe Diameter (inch) | Pipe Diameter (mm) | Length Range | Wall Thickness (mm) | Thread Type |
|---|---|---|---|---|---|
| 1 | 3 1/2 | 89 | 1000-9144mm | 6 | API 2 3/8" IF |
| 2 | 4 | 102 | 1000-9144mm | 8.38 | API 2 7/8" IF |
| 3 | 4 1/2 | 114 | 1500-9144mm | 8.38 | API 3 1/2" REG/IF |
| 4 | 5 | 127 | 1500-9144mm | 9.19 | API 3 1/2" REG/IF |
| 5 | 5 1/2 | 140 | 1500-9144mm | 10.00-25.4 | API 4 1/2" REG/IF or 4"FH |
| 6 | 6 1/4 | 168 | 3000-9144mm | 10.00-25.4 | API 4 1/2" REG/IF or 4"IF |
| 7 | 7 | 178 | 3000-9144mm | 12.7-25.4 | 5 1/2"FH/REG |
| 8 | 7 5/8 | 194 | 3000-9144mm | 12.7-25.4 | 6 5/8"REG |
Manufacturing Process
Our drill rods utilize premium materials from leading Chinese steel enterprises including Baosteel, Angang Steel, Xining Special Steel, and Henggang.
- Heat treatment using integrated non-oxidizing furnace
- Professional CNC machining for all thread processing
- International standard thread gauges for quality assurance
- Internally thickened rod body and tube ends
- Tempering treatment after friction welding for enhanced durability
The friction welding process ensures high strength, excellent elasticity, and reliable connections that resist bending while maintaining consistent quality.
Structural Design
The water well drill pipe consists of three main components:
- Barrel
- Male joint
- Female joint
These components feature axial holes and are connected through interference fit from both ends of the rod cylinder. The design includes shaft shoulders on the male and female joints, with the rod cylinder end face welded to the shaft shoulder end face. This innovative connection method provides high torsional strength, making it ideal for shallow well drilling rig applications.
Usage Guidelines
- Select the appropriate type and model for your specific construction requirements
- Source from reputable, large-scale manufacturers to ensure quality
- Conduct thorough formation checks to prevent water blockage
- Ensure proper water delivery and accurate design before operation
- Be aware that twisting during use may indicate suboptimal materials
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jinzhou City Shitan Machinery Equipment CO. LTD.
Location
Xiaoshang Industrial Zone, Jinzhou City, Hebei Province, China
Contact Person
Anna