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{"title":"STT50 Universal Electric Pipe Threading Machine 1\/2\u2033-2\u2033 for pipe","imgUrl":"https:\/\/img.chinax.com\/nimg\/7d\/8b\/840e621155780fb3bca29a4fe0c5-200x200-1\/stt50_universal_electric_pipe_threading_machine_1_2f2_e2_80_b3_2_e2_80_b3_for_pipe.jpg","attrs":{"Scope of application":"1\/2\"-2\" (\u03a613-\u03a650) for pipe","Key words":"stainless steel threading machine","Package":"1SET\/WOODEN CASE","Function":"Multi purpose"}}
{"title":"STT100F From 1\/2inch to 4inch Heavy duty and 1500w big power electrical pipe","imgUrl":"https:\/\/img.chinax.com\/nimg\/2a\/c9\/525d3ecd953e50d146045a7aae56-200x200-1\/stt100f_from_1_2f2inch_to_4inch_heavy_duty_and_1500w_big_power_electrical_pipe_threading_machine_cutting_machine_for_sale.jpg","attrs":{"MODEL":"STT100F","PLUG":"AS YOUR REQUEST","DIE":"1\/2-3\/4'', 1''-2'', 2 1\/2''-4'' BSPT\/NPT, OR METRIC DIES","VOLTAGE AND FREQUENCY":"AS YOUR REQUEST"}}
{"title":"STT25 Light weight Portable on site Electric Pipe Threading Machine 1\/2\u2033-1\u2033 for","imgUrl":"https:\/\/img.chinax.com\/nimg\/45\/81\/d4f76ec99c434fa6f176ccc2aebb-200x200-1\/stt25_light_weight_portable_on_site_electric_pipe_threading_machine_1_2f2_e2_80_b3_1_e2_80_b3_for_pipe.jpg","attrs":{"Scope of application":"1\/2\"-1\" (\u03a613-\u03a625) for pipe","Die head":"Conduit (1\/2\u2033-1\u2033): Quick Open","Weight":"35\/28Kg","Key words":"portable threading machine"}}
{"title":"STT100F 1\/2-4" Electric 1500w whole aluninum casing body Pipe Threading Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/2f\/ce\/4339e9dfef1cdd42d4db74abf60d-200x200-1\/stt100f_1_2f2_4_22_electric_1500w_whole_aluninum_casing_body_pipe_threading_machine.jpg","attrs":{"Scope of application":"1\/2-4''","Color":"Red \/ Can be customized","Function":"Multi purpose","Application":"Pipe cutting & Threading"}}
{"title":"STT80N2 Custom 1300W Automatic 3 Inch Portable Electric Pipe Threader","imgUrl":"https:\/\/img.chinax.com\/nimg\/ce\/3f\/888056636a6b8eeb8e6cbb25a3cf-200x200-1\/stt80n2_custom_1300w_automatic_3_inch_portable_electric_pipe_threader.jpg","attrs":{"Scope of application":"1\/2-3''","Color":"Red \/ Can be customized","Key words":"internal thread rolling machine","Weight":"105\/85KG"}}
{"title":"STT65 2 1\/2'' Automatic Electric 1\/2 Inch to 2 1\/2 inch Pipe Threading Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/4a\/4e\/c5c868bacbaa1420279a7b3221b9-200x200-1\/stt65_2_1_2f2_27_27_automatic_electric_1_2f2_inch_to_2_1_2f2_inch_pipe_threading_machine.jpg","attrs":{"Brand Name":"SUNTECHMACH","Model Number":"ZT-65BF","Certification":"ISO9001","Place of Origin":"ZHEJIANG, CHINA"}}
The SUNTECHMACH STT50B electric pipe threading machine is designed for on-site threading, cutting and reaming of 1/2"-2" (Φ13-Φ50) steel pipe — covering the most common pipe sizes in plumbing, fire protection, HVAC and electrical conduit installation. Powered by an 1800W PMSM (permanent magnet synchronous) motor, it delivers high torque with remarkably low noise. Dual speeds (20/40 RPM) let operators switch between precise heavy-wall threading and fast production threading. The quick-open die head accepts HSS dies for long service life, and both manual and self-opening die heads are available.
Contractor Pain Points & Our Solutions
THE PROBLEM
HOW WE SOLVED IT
Jobsite noise complaints from conventional motors
1800W PMSM motor — high power with low noise and better energy efficiency
Single-speed machines lack control
20/40 RPM dual speed: low gear for heavy-wall steel pipe, high gear for fast standard threading
Dies wear out quickly on tough pipe
HSS (high-speed steel) dies for longer life and cleaner, consistent threads
Carrying separate tools for threading, cutting and reaming
One machine performs threading, cutting and reaming — fewer tools on the job
Die size change slows down the work
Quick-open die head for fast, tool-free size change; optional self-open die head available
Key Features
1800W PMSM Motor — High power output with low noise and improved energy efficiency.
Dual-Speed Operation — 20/40 RPM: low gear for precise heavy-wall threading, high gear for fast production.
Multi-Function Design — Threading, cutting and reaming in one compact machine.
Quick-Open Die Head — Fast size changeover; 1/2"-3/4" and 1"-2" die sets included as standard.
HSS Dies — Long-life high-speed steel dies for durable, consistent threads.
Jobsite-Ready Build — Rigid four-leg stand with rubber feet for stable operation; optional self-open die head.
Technical Specifications
Parameter
Specification
Model
STT50B
Machining size
1/2"-2" (Φ13-Φ50) for pipe
Motor
1800W PMSM
Voltage
220V 50Hz 【110V/60Hz can be customized】
Speed
20/40 rpm
Die head
Quick-open (1/2"-2"); optional self-open
Thread standards
NPT / BSPT (per die set)
G.W./N.W.
77/65 kgs
Packing size
860 x 550 x 650 mm
Standard accessories
Die sets 1/2"-3/4" & 1"-2", support, tools bag
What's Included
1x STT50B threading machine
1x Quick-open die head (1/2"-2")
1x Die set 1/2"-3/4"
1x Die set 1"-2"
1x Pipe support
1x Tools bag
1x Operation manual + 12-month warranty card
Applications
Suitable for threading, cutting and reaming of steel pipe (galvanized / black / conduit) in:
Plumbing & mechanical installation
Fire protection sprinkler pipework
Electrical conduit installation
Water & gas pipeline construction
HVAC system piping
Maintenance and repair workshops
Packaging & Quality Assurance
Every STT50B is packed in a wooden case for export shipment. Each machine is fully tested — at least one pipe is threaded on every machine before packing. Quality is controlled under our ISO9001 management system, with full inspection before shipment.
Multilingual support team (English / Russian / Japanese / French)
Operation Guide
Setup — Place the machine on level ground; connect to a grounded power supply (voltage per nameplate).
Pipe clamping — Insert the pipe through the chuck; tighten rear chuck first, then front chuck, to fix the pipe firmly.
Threading — Select the correct die head and dies for the pipe size; lock the die head; start the motor; feed the die head to the pipe and engage threading (low gear for heavy-wall pipe, high gear for standard pipe).
Cutting / Reaming — Use the cutter frame and chamfering device for cutting and reaming operations.
After operation — Stop the motor, reverse the die head, loosen the chucks and remove the pipe. Clean the die head and lubricate as per the manual.
Common Faults & Solutions
Common faults
Reasons
Solutions
Motor doesn't work or runs intermittently
Fuse burnt; plug not connected well; cable broken; switch faulty
Check with a multimeter; replace fuse / plug / cable / switch
Pipe slips during threading
Insufficient clamping; jaw tip worn
Tighten chucks harder; replace jaw tips
Thread quality poor / dies jam
Dies worn; chips in die head
Replace with new HSS dies; clean die head
Cutter fails to cut
Cutting blade worn
Replace cutting blade
Front chuck loosens
Screws loose after long use
Inspect and tighten regularly
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Trading Company
Year Established:
1990
Total Annual:
8,000,000-20,000,000
Employee Number:
<200
Ecer Certification:
Verified Supplier
HZ-SUNTECH is the Pipe Tools Division of CNSUNTECH Group, specializing in heavy-duty pipe fabrication and installation equipment for global contractors, distributors, and industrial users.
With over 20 years of industry experience, we focus on providing durable, jobsite-ready solutions for st... HZ-SUNTECH is the Pipe Tools Division of CNSUNTECH Group, specializing in heavy-duty pipe fabrication and installation equipment for global contractors, distributors, and industrial users.
With over 20 years of industry experience, we focus on providing durable, jobsite-ready solutions for st...