STB50 Manual Hydraulic Pipe Bender 1/2"-2" (21.3-60mm)
Basic Properties
Trading Properties
| Model: | STB50 | Capacity: | 1/2"-2" (21.3-60mm) |
|---|---|---|---|
| Pipe Wall Thickness: | 2.75-4.5mm | Bending Dies: | 6 Sets: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" |
| Drive: | Manual Hydraulic Pump | Standards: | GB/T 3091, DIN 2440, EN 10255, BS 1387 |
| G.W./N.W.: | 53/50 Kg | Packing Size: | 730 X 320 X 200 Mm |
STB50 SUNTECHMACH Aluminum Manual Hydraulic Pipe Bender 1/2"-2"
Specifications
| Field | Content |
| Name | Heavy Duty Manual Pipe Bender (Top Quality Cylinder & Seals) |
| Capacity | 1/2"-2" (21.3-60mm) |
| Bending dies | 6 sets: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" |
| Pipe wall thickness | 2.75-4.5mm |
| G.W./N.W. | 53/50 kg |
| Packing size | 730 x 320 x 200 mm |
Product Description
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.
What's Included
- 1x STB50 bending machine
- 6x Bending shoes (1/2", 3/4", 1", 1-1/4", 1-1/2", 2")
- 1x Hydraulic hand pump & handle
- 1x Swagging blocks set
- 1x Operation manual + 12-month warranty card
Applications
Suitable for pipe cold bending in:
- 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.
After-Sales Support
- 12-month warranty
- Spare parts supply for all SUNTECHMACH models
- WhatsApp: +86-13777804353 | Email: vivian@cnsuntech.com
- 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.
Contact Person: Mr. Sales Team
Tel: 00-86-13777804353