The SUNTECHMACH STT50 pipe threader is a compact, high-performance pipe threading machine that will thread, cut and ream up to the 2-inch pipe. This pipe threading machine comes with an automatic self-opening die head and a through-head oiling system, and is ideal for on-site threading work of steel pipe and black steel pipe repairs, pipeline construction, as well as sanitary and heating installations. It is built with a full cast aluminum body that will not deform like steel after long use, a HT-400 ductile iron die head, gears processed by a thermal refining craft, a full copper motor with thicker wire, a heavy duty pipe cutter assembly and solid bar slide rods.
Contractor Pain Points & Our Solutions:
| THE PROBLEM |
HOW WE SOLVED IT |
| Threading up to 2-inch pipe on site |
Bestseller model with automatic self-opening die head |
| Machine body deforms after long use |
One-piece full cast aluminum housing |
| Lubrication is messy |
Through die head oiling system |
| Dies wear out quickly |
9CrSi striking forged chaser — life more than 700 pcs pipes, 2× normal alloy dies |
| Cheap machines overstate power |
Full copper motor with thicker wire — bigger real power |
Key Features
- Bestseller model with superior quality; one-piece aluminum housing.
- Powerful motor and transmission; through die head oiling.
- Compact, high-performance machine that will thread, cut and ream up to the 2-inch pipe.
- Comes with an automatic self-opening die head and a through-head oiling system.
- Standard with special 9CrSi striking forged chaser, life more than 700 pcs pipes, 2 times more durable than normal alloy dies.
- The body is all made of full cast aluminum — after long period use the machine body will not deform like steel.
- Higher grade HT-400 ductile iron die head; gears processed by thermal refining craft.
- Full copper motor with thicker electricity wire — motor power is bigger.
- Heavy duty pipe cutter assembly; the 2 slide rods are solid bar (not hollow tube).
Technical Specifications
| Field |
Content |
| Model |
STT50 |
| Capacity |
1/2″-2″ |
| Die head |
Automatic self-opening; through-head oiling |
| Chaser |
9CrSi striking forged chaser (life > 700 pcs pipes) |
| Body |
One-piece full cast aluminum |
| Die head material |
HT-400 ductile iron |
| Motor |
Full copper motor, 750W |
| Speed |
28 RPM |
| Slide rods |
Solid bar (2 pcs) |
What's Included
- 1x STT50 pipe threading machine (full aluminum body)
- 1x Automatic self-opening die head
- 1 set chaser (1/2″-3/4″, 1″-2″ BSPT; NPT optional)
- 1x Cutter assembly (heavy duty)
- 1x Reamer
- 1x Operation manual + 12-month warranty card
Applications
- On-site steel pipe threading 1/2″-2″
- Black steel pipe repairs
- Pipeline construction
- Sanitary and heating installations
- Fire protection pipe preparation
Packaging & Quality Assurance
Export packing for the STT50 pipe threading machine. ISO9001 quality system; every machine tested with a pipe before shipment. 【备注:外箱包装方式待工厂确认】
After-Sales Support
- 12-month warranty
- WhatsApp: +86-13777804353 | Email: vivian@cnsuntech.com
- Spare parts supply for all SUNTECHMACH models
Operation Guide
- Lift the pipe cutter, die head and reamer; pour the threading oil into the tray.
- Insert the steel pipe and tighten the rear chuck, then use the hammer chuck to tighten the front chuck so the pipe is held tightly.
- Adjust the threading gauge to set the threading length for the pipe diameter.
- Insert the dies into the die head according to the figure 1, 2, 3, 4 marks; set the pipe diameter distance on the measurement plate and lock the die head.
- Turn on the machine and swing the handle to let the die head approach the pipe end; the die head opens automatically when threading is done.
- Use the reamer to chamfer the pipe end inner side and the pipe cutter to cut the pipe.
Common Faults & Solutions
| Common faults |
Reasons |
Solutions |
| Thread is rough or torn |
Dull chaser / wrong die size |
Replace the 9CrSi chaser; select the correct size |
| Die head does not track straight |
Die head not aligned / pipe not clamped |
Re-align the die head; clamp the pipe firmly |
| Machine vibrates |
Machine not level |
Level the machine / stand |
| Chaser wears quickly |
No oil / wrong material |
Use threading oil; check chaser quality |
| Cutter will not cut |
Cutter wheel dull |
Replace the cutter wheel |
| Machine does not start |
Power/cable/switch fault |
Check socket, cable and switch |
FAQ
- WHO ARE WE? — We are a professional pipe machine manufacturer in Hangzhou, China. Our team has worked in the pipe tool industry since 1989, and the company was registered in 2014. We are close to Shanghai, Ningbo and Yiwu ports, exporting mainly to North & South America, South Asia and the Middle East.
- HOW CAN WE GUARANTEE THE QUALITY? — We always test at least one pipe on every machine before shipping. All our machines carry a 12-month warranty.
- WHAT CAN YOU BUY FROM US? — Pipe threading machines, roll grooving machines, pipe cutting machines, pipe bending machines, plastic pipe welding machines, pressure test pumps and pipe tools.
- WHY SHOULD YOU BUY FROM US? — We offer a full range of pipe tools; you can mix different models in one shipment. Multilingual support: English, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian.
- HOW LONG IS THE LEADTIME? — Usually 10-35 days after payment, depending on motor voltage customization.
- HOW CAN YOU PLACE ORDER? — We accept T/T payment to our company account; online shop payment by credit card is also available.
- HOW TO SHIP? — By sea to port for bulk orders; door-to-door delivery for small shipments.
- WHAT IS THE MOQ? — No strict MOQ; however, we recommend an order amount of at least USD 2000 for cost-effective overseas shipping.
- IS OEM ACCEPTABLE? — Yes. For bulk orders we can make nameplates and customized packaging in your brand.