Pipe Threading Machine for ERW Tube Mill

A Pipe Threading Machine is essential equipment used for cutting external threads on steel pipes after they are formed and sized in an ERW Tube Mill. It ensures accurate, strong, and smooth pipe ends for easier connection in plumbing, gas lines, construction, and mechanical applications.

1.Functions & Features

• 🔧Thread Cutting: Creates precise and consistent external threads on round pipes.

• ⚙️High Accuracy Positioning: Ensures each pipe end is centered for stable threading.

• 🔧Automatic Feeding & Clamping: Reduces labor and increases production efficiency.

• ⚙️Heavy-Duty Spindle System: Designed for high-speed cutting and long service life.

• 🔧Cooling & Lubrication System: Prevents tool overheating and improves thread quality.

• ⚙️Compatible with ERW Pipes: Matches pipe sizes commonly produced in ERW Tube Mills.

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2.Applications

• Water & gas steel pipes

• Scaffolding pipes

• Mechanical structure tubes

• API-style threaded pipe ends

• Construction and industrial pipe connections

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3.Technical Parameters (Typical Range)

(Can be adjusted according to customer equipment) 

• Item	Specification	Description
  Pipe Diameter Range	1/2" – 4" (Optional 6")	Suitable for ERW steel pipes, scaffolding pipes, water/gas pipes
  Pipe Wall Thickness	1.5–8 mm	Depends on material strength
  Thread Types	BSPT / NPT / Metric / API	Replaceable threading dies
  Thread Length	8–60 mm	Adjustable depending on standards
  Spindle Speed	80–400 rpm	Variable speed for different pipe sizes
  Main Motor Power	7.5–22 kW	Larger sizes require higher power
  Feeding System	Hydraulic / Servo	Automatic pipe feeding and positioning
  Clamping System	Hydraulic 3-jaw chuck	Ensures stable threading without pipe damage
  Cooling System	Automatic cutting fluid circulation	Extends tool life and improves thread finish
  Control System	PLC + HMI Touch Screen	Easy operation and parameter adjustment
  Machine Length	2500–4500 mm	Depending on model
  Air Supply Requirement	0.6–0.8 MPa	For clamps and cylinders
  Power Supply	380V / 50Hz (Customizable)	Supports worldwide voltage

4.Related Equipment in ERW Tube Mill Line

A Pipe Threading Machine is normally installed after the pipe cutting and finishing section. It often works together with:

• ✅Flying Saw / Cold Saw Cutting Machine

• ✅Tube End Facing & Chamfering Machine

• ✅Hydrostatic Testing Machine

• ✅Beveling Machine

• ✅Packing & Bundling System

5.Frequently Asked Questions (FAQ)

1. What is a Pipe Threading Machine used for?

A Pipe Threading Machine is used to cut external threads on steel pipes, especially ERW pipes, for easy connection in plumbing, gas lines, scaffolding, and construction applications.

2. Can it work with ERW Tube Mills?

Yes. It is commonly installed after the flying saw or cold saw in an ERW Tube Mill finishing line, together with beveling, end facing, and hydro testing machines.

3. What type of threads can your machine produce?

It supports BSPT, NPT, Metric, API, and custom thread types with easily replaceable threading dies.

4. What pipe sizes can your threading machine handle?

Standard models cover 1/2"–4", but customized machines can reach 6" or 8" depending on requirements.

5. Does the machine support automatic operation?

Yes. It includes automatic feeding, clamping, lubrication, and PLC control for stable and high-speed threading.

6. How long do the threading dies last?

Usually 15,000–30,000 pcs depending on material hardness, pipe cleanliness, and lubrication quality.