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Heavy Duty Manual Type Pipe Bender (Top Quality Cylinder & Seals)
Packaging Details
Wooden case
Max pressure
23T (4" / Φ100)
Certification
ISO9001
Model Number
STB100
Brand Name
SUNTECHMACH
Place of Origin
ZHEJIANG, CHINA
The SUNTECHMACH STB100 heavy-duty manual type 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. With 23T of hydraulic force and a 370mm stroke, it bends 1/2"-4" pipe — the top tier for heavy industrial and boiler making work. Built on a one-piece welded steel frame with wheels and foldable stand.
THE PROBLEM
HOW WE SOLVED IT
4" heavy pipe cannot be bent on site
23T max pressure handles 1/2"-4" (21.3-100mm) up to 90°
Bending dies sold separately
9 sets of bending shoes included: 1/2" to 4"
Deep bends need multiple passes
370mm long stroke for one-pass deep bends
155kg machine hard to move
Integrated wheels and foldable stand — one-person transport
23T Bending Force — Top-tier power for 1/2"-4" (21.3-100mm) thick-wall steel pipe.
9 Bending Shoes Included — 1/2" to 4", full range out of the box.
370mm Long Stroke — Deep one-pass bends without repositioning.
One-Piece Welded Frame — Rated for 23T continuous pressure without deformation.
Wheels & Foldable Stand — Roll across the site; one-person setup in under 60 seconds.
No Power Required — Manual hydraulic pump for any job site.
What's Included
1x STB100 bending machine
9x Bending shoes (1/2" to 4")
1x Hydraulic hand pump & handle
1x Swagging blocks set
1x Operation manual + 12-month warranty card
Applications
Plumbing, sanitary and heating installation on construction sites
Fire protection and sprinkler pipework
Water & gas pipeline construction
Apparatus and boiler making
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
1. 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.
2. 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.
3. 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.
4. 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.
5. HOW LONG IS THE LEADTIME? — Usually 10-35 days after payment, depending on motor voltage customization.
6. HOW CAN YOU PLACE ORDER? — We accept T/T payment to our company account; online shop payment by credit card is also available.
7. HOW TO SHIP? — By sea to port for bulk orders; door-to-door delivery for small shipments.
8. WHAT IS THE MOQ? — No strict MOQ; however, we recommend an order amount of at least USD 2000 for cost-effective overseas shipping.
9. 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...
