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Home  /  Product Center  /  Drill Pipe Series  /  roller cone drill pipe
roller cone drill pipe
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Drill Pipe Series

roller cone drill pipe

Crafted from high-quality seamless steel pipes and using advanced friction welding technology, this product is specifically designed for high-intensity rotary drilling. It boasts superior tensile and torsional fatigue resistance, perfectly adapting to var

Expert Support / OEM Customization : We can provide non-standard sizes and designs based on specific geological conditions.
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Technical Support
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TECHNICAL DATA

Product Specifications

Φ146

Outside Diameter Φ146
Pin Thread Type (P) 4“BECO
Box Thread Type (B) 4“BECO
Pin Joint Across Flats 135mm
Box Joint Across Flats 135mm
Reduced Diameter 120mm
Effective Length (L) 4000mm-9144mm
Tube Wall Thickness (T) Custom
Φ146 CAD Schematic

Φ159

Outside Diameter Φ159
Pin Thread Type (P) 4“BECO
Box Thread Type (B) 4“BECO
Pin Joint Across Flats 135mm
Box Joint Across Flats 145mm
Reduced Diameter 138mm
Effective Length (L) 4000mm-9144mm
Tube Wall Thickness (T) Custom
Φ159 CAD Schematic

Φ175

Outside Diameter Φ175
Pin Thread Type (P) 4 1/2“BECO
Box Thread Type (B) 4 1/2“BECO
Pin Joint Across Flats 139.7mm
Box Joint Across Flats 101.6mm
Reduced Diameter 139.7mm
Effective Length (L) 4000mm-10668mm
Tube Wall Thickness (T) Custom
Φ175 CAD Schematic

Φ194

Outside Diameter Φ194
Pin Thread Type (P) 5 1/4“BECO
Box Thread Type (B) 5 1/4“BECO
Pin Joint Across Flats 172mm
Box Joint Across Flats 172mm
Reduced Diameter 172mm
Effective Length (L) 4000mm-12192mm
Tube Wall Thickness (T) Custom
Φ194 CAD Schematic

Φ219

Outside Diameter 172mm
Pin Thread Type (P) 6“BECO
Box Thread Type (B) 6“BECO
Pin Joint Across Flats 178mm
Box Joint Across Flats 178mm
Reduced Diameter 178mm
Effective Length (L) 4000mm-10668mm
Tube Wall Thickness (T) Custom
Φ219 CAD Schematic

Φ235

Outside Diameter 172mm
Pin Thread Type (P) 6“BECO
Box Thread Type (B) 6“BECO
Pin Joint Across Flats 196mm
Box Joint Across Flats 196mm
Reduced Diameter 196mm
Effective Length (L) 4000mm-10668mm
Tube Wall Thickness (T) Custom
Φ235 CAD Schematic

Φ273

Outside Diameter 172mm
Pin Thread Type (P) 8“BECO
Box Thread Type (B) 8“BECO
Pin Joint Across Flats 196mm
Box Joint Across Flats 228mm
Reduced Diameter 233mm
Effective Length (L) 4000mm-10668mm
Tube Wall Thickness (T) Custom
Φ273 CAD Schematic

Product Details

roller cone drill pipe

Effective Length (L)
4000mm-9144mm
Outside Diameter
Φ146
Pin Thread Type (P)
4“BECO
Box Thread Type (B)
4“BECO
Pin Joint Across Flats
135mm
01

Structure

Φ146 Product structure drawing
Φ146 Product structure drawing
1Outside Diameter
Φ146
2Pin Thread Type (P)
4“BECO
3Box Thread Type (B)
4“BECO
4Pin Joint Across Flats
135mm
5Box Joint Across Flats
135mm
02

Compatibility

Outside Diameter
Φ146
Pin Thread Type (P)
4“BECO
Box Thread Type (B)
4“BECO
Reduced Diameter
120mm
Effective Length (L)
4000mm-9144mm
Tube Wall Thickness (T)
Custom
PRODUCT SUPPORT

Build the right drilling solution around this product.

Tell us your working condition, target quantity, and delivery plan. We will match the model, technical document, and quotation path for your project.

Engineer-assisted selection

01How does Kaiyue control the raw material quality of roller cone drill pipe?

All steel materials are purchased from qualified large steel mills, and each batch is inspected after arrival before it is released for production.

02What steel is used for the body of roller cone drill pipe?

Body material is selected for the specific model, connection, and working conditions, and must match the approved product specification and quality records.

03Why are the pipe ends of roller cone drill pipe upset and thickened?

The upset ends increase the friction-welding contact area, helping improve joint strength and reduce the risk of connection fracture.

04How are the friction-welded areas of roller cone drill pipe treated?

All friction-welded areas are tempered after welding to reduce internal stress and improve long-term structural stability.

05What material is used for the coupling of roller cone drill pipe?

Coupling material and heat treatment are selected for the specific model and operating conditions and must match the approved product specification and inspection records.

06How is the coupling hardness verified?

Core and surface hardness must be tested against the inspection specification for the corresponding model. The approved technical document and batch quality record define the applicable range.

PRODUCT SUPPORT

Get a project-ready quote

Add this product to your inquiry list, then send one request with quantity, application, and destination. The sales and technical team can respond with clearer pricing and configuration advice.

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