CNC pipe thread lathe

What is a Pipe Thread CNC Lathe?
A Pipe Thread CNC Lathe is a high-precision CNC turning machine specifically designed for machining various internal and external threads (such as tapered pipe threads, cylindrical threads, metric threads, imperial threads, etc.) and long-shaft workpieces.
The machine usually features a large spindle bore, with diameters up to Φ105mm, Φ130mm, or larger, allowing long pipes to be fed through directly. Combined with a high-rigidity bed, wide guideways, and a powerful servo system, it ensures excellent stability and high precision under heavy cutting loads.

Main Application Industries
1. Oil & Gas Industry: Used for machining oil pipes, drill rods, joints, casings, flanges, and other components, achieving high-precision internal and external thread connections (e.g., API standard threads).
2. Hydraulic & Pneumatic Equipment Manufacturing: Machines hydraulic cylinder tubes, joints, valve bodies, and connecting pipes with threaded structures, ensuring sealing performance and consistent accuracy.
3. Construction Machinery & Energy Equipment: Processes hydraulic pipes, connecting tubes, wind power shafts, pump shafts, and other high-strength components, ensuring reliable threaded connections.
4. Building Pipeline & Firefighting Systems: Widely used for machining water supply and drainage pipes, firefighting pipe joints, steel pipe fittings, and quick-connect threaded components.
5. Automotive & Transportation Industry: For production of drive shaft tubes, connectors, and axle-threaded sections of medium and large pipe-type parts.
6. General Mechanical Manufacturing: Suitable for precision batch machining of medium-to-large diameter pipes, shafts, flanges, and threaded connection parts.

Frequently Asked Questions (FAQ)
1. How does it differ from a standard CNC lathe?
Standard lathes have smaller spindle bores and are unsuitable for through-pipe machining.
Pipe thread lathes feature larger spindle bores and higher rigidity, designed specifically for threaded pipe cutting, enabling high-torque heavy cutting and long-shaft support.

2. What thread types can be machined?
Automatically processes multiple thread forms:
— Metric threads (Metric)
— Imperial threads (BSP, UNC, UNF)
— Tapered threads (NPT, PT, API)
— Custom threads (per customer specifications)

3. What materials can be machined?
Suitable for a wide range of metals:
— Carbon steel
— Stainless steel
— Alloy steel
— Cast iron
— Aluminum
— Copper
— Titanium alloys

4. How to choose the right model?
Consider the following:
— Maximum workpiece diameter and length
— Thread type (API, G, NPT, etc.)
— Material hardness and cutting load
— Need for automatic feeding, tailstock support, or powered turret

5. Daily maintenance tips
— Keep spindle bore and guideways clean, prevent chip accumulation
— Regularly check ball screw and servo system clearance
— Inspect thread cutting tools for wear and alignment
— Check hydraulic system and coolant status
— Apply rust protection during long-term shutdowns

6. Main advantages of a Pipe Thread CNC Lathe
— High-rigidity structure, stable under heavy cutting
— Supports multiple standard thread types (API / BSP / NPT, etc.)
— Spindle bore design suitable for long pipe workpieces
— High precision and excellent surface finish
— Supports integration into automated production lines
— Easy maintenance and long service life