What Is a Pipe Threading Machine?

A pipe threading machine (also known as an electric pipe threader) is a power tool designed to cut screw threads onto the ends of steel pipes, allowing pipes to be connected securely with fittings, couplings and valves. It combines a motor-driven rotating die head with a self-centering support system, enabling fast, consistent and accurate threading on water, gas and electric conduit pipes. Pipe threading machines are essential equipment for pipeline installation, maintenance and fabrication, replacing slow and labor-intensive manual die stocks with reliable one-person operation.

STT150 Steel Pipe Threading Machine — Product Overview

The STT150 is a heavy-duty steel pipe threading machine designed for threading various water, electric or gas pipes ranging from 2 1/2" to 6". It is efficient and widely used in equipment installation and construction industries. The STT150 is an ideal device for increasing efficiency, shortening construction time, securing construction quality and decreasing working intensity.

Standard Equipment

• Self-open die head 2 1/2"-4"
• Self-open die head 5"-6"
• Dies set 2 1/2"-4"
• Dies set 5"-6"
• Support
• Tools bag

How to Use the STT150 Pipe Threading Machine

1. Place the machine on a stable, level surface and secure it firmly before operation.
2. Select the correct die set matching the pipe diameter (2 1/2"-4" or 5"-6") and install it into the self-open die head.
3. Insert the steel pipe into the die head and adjust the support so that the pipe is aligned with the center of the threading head.
4. Start the machine and select the appropriate rotation speed (9 rpm or 24 rpm) according to the pipe size and material.
5. Feed the die head onto the pipe evenly; the self-open die head will open automatically once the preset thread length is reached.
6. Reverse the rotation to withdraw the die head, remove the pipe and clean the finished threads with cutting oil.

Safety Precautions & Maintenance

• Always wear protective gloves and safety goggles when operating the machine.
• Never touch rotating parts while the machine is running; keep hands and loose clothing away from the die head.
• Apply cutting oil during threading to reduce friction, protect the dies and extend tool life.
• Disconnect the machine from the power supply before changing dies or performing any maintenance.
• Inspect the power cord and plug for damage before each use; never operate with a damaged cable.
• Keep the machine clean, lubricate moving parts regularly and store it in a dry environment.
• Only use genuine dies and accessories to guarantee thread quality and machine safety.

Applications

The STT150 is widely used in water supply and drainage systems, gas pipeline installation, electrical conduit works, fire protection systems, HVAC projects, shipbuilding and general construction.

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