Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
{"title":"STB25 SUNTECHMACH steel pipe bender to bend small size aluminium tubes portable","imgUrl":"https:\/\/img.chinax.com\/nimg\/84\/2d\/361c0badec52134bd220d75fee70-200x200-1\/stb25_suntechmach_steel_pipe_bender_to_bend_small_size_aluminium_tubes_portable_manual_hydraulic_pipe_bender_3_2f8_1_27_27.jpg","attrs":{"Size":"3\/8\"-1\"(\u03a610-\u03a625mm)","Name":"Heavy duty manual pipe bender with top quality cylinder and seals","Package":"carton","Weight":"28\/26KG"}}
{"title":"STB100 SUNTECHMACH aluminum Manual type hydraulic pipe bender 1\/2\u2033-4\u2033","imgUrl":"https:\/\/img.chinax.com\/nimg\/ce\/86\/ae18b6704d69004d586cc195851f-200x200-1\/stb100_suntechmach_aluminum_manual_type_hydraulic_pipe_bender_1_2f2_e2_80_b3_4_e2_80_b3.jpg","attrs":{"Capacity":"1\/2\"-4\"(21.3-100mm)","Weight":"155KG","Package":"POLYWOOD","Name":"Heavy duty manual type pipe bender with top quality cylinder and seals"}}
{"title":"STB30 Manual Conduit Pipe Bender 20\/25\/32mm Portable","imgUrl":"https:\/\/img.chinax.com\/nimg\/d9\/57\/197bcab630f8727c01d57d9b3178-200x200-1\/stb30_manual_conduit_pipe_bender_20_2f25_2f32mm_portable.jpg","attrs":{"Bending Capacity":"20.25.32mm","Packing Size":"110 x 55 x 20 cm","Weight":"28 kg","Formers Included":"3 pcs (20mm, 25mm, 32mm)"}}
Heavy Duty Manual Pipe Bender (Top Quality Cylinder & Seals)
Packaging Details
Wooden case
Pipe wall thickness
2.75-4.5mm
Model Number
STB50
Certification
ISO9001
Brand Name
SUNTECHMACH
Place of Origin
ZHEJIANG, CHINA
The SUNTECHMACH STB50 manual hydraulic pipe bender is designed for precision cold bending of thick-walled pipes (gas, water and steam pipes, black iron pipes, galvanized pipes, Schedule 40 & 80) up to 90°, following GB/T 3091, DIN 2440, EN 10255 and BS 1387 standards. No electricity is required — the hydraulic hand pump delivers strong, controlled bending force anywhere on site. Ideal for plumbing, sanitary and heating installation, apparatus and boiler making, and industrial applications.
THE PROBLEM
HOW WE SOLVED IT
No power source available at work site
Pure manual hydraulic pump — bends pipe anywhere, no electricity needed
Machine too heavy to move between floors
Aluminum construction, only 53 kg, easy to carry and position
Bending dies sold separately
6 sets of bending shoes included: 1/2" to 2"
Over-bending ruins the pipe
Release valve gives precise control of the bend angle (max 90°)
Key Features
No Power Required — Manual hydraulic pump works on any job site, indoors or outdoors.
Precision Cold Bending — Up to 90° per GB/T 3091, DIN 2440, EN 10255, BS 1387.
6 Bending Shoes Included — 1/2" to 2" sizes, ready to work out of the box.
Light & Portable — Aluminum body, 53 kg, easy to move between work positions.
Heavy-Duty Cylinder & Seals — Top quality components for long service life.
Controlled Bending — Release valve for smooth, accurate angle control.
Plumbing, sanitary and heating installation on construction sites
Apparatus and boiler making
Fire protection and sprinkler pipework
Water & gas pipeline construction
HVAC piping
Industrial maintenance workshops
Packaging & Quality Assurance
Packed in carton + pallet (wooden case for export). Every machine is tested before shipment under our ISO9001 quality system; at least one pipe is bent on every machine before packing.
Multilingual support team (English / Russian / Japanese / French)
Operation Guide
Tighten the release valve by turning clockwise.
Loosen the vented oil bolt.
Grease the die cover, swagging blocks and the pipe to be bent.
Lift the upper plate and affix the bending die to the end of the cylinder ram.
Turn the swagging blocks so their grooves face the pipe die.
Make sure the pipe extends beyond the swagging blocks (accounts for pipe shortening during bending).
Set the swagging blocks closer together for short pipes.
Return the upper plate to position and advance the die.
Use the forming pump to apply pressure and bend the pipe to the desired angle (max 90°).
Release pressure with the release valve; the ram retreats automatically; lift the upper plate to remove the bent pipe.
For a clean right-angle finish, start with the swagging blocks at the pipe end and work inward.
Common Faults & Solutions
Common faults
Reasons
Solutions
Ram won't fully extend
Air in hydraulic system
Purge air: loosen vented oil bolt, tilt cylinder 45°, pump until air removed
Slow response / weak force
Low hydraulic oil level
Top up quality hydraulic oil to about 1.2L
Oil leaks from cylinder seals
Too much oil
Keep oil level at about 1.2L, not above
Pipe slips during bending
Swagging blocks set incorrectly
Adjust blocks; make sure pipe extends beyond blocks
Bend angle inaccurate
Wrong die or block setting
Check die seating and block positions
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...
