1. Product Overview: Heavy-Duty Solution for Large-Scale Pipe Bending
The Hydraulic Used Pipe Bending Machine is a specialized heavy-duty equipment engineered to produce large-diameter pipe elbows—catering to the core needs of pipe fitting manufacturing in industries like oil & gas, petrochemicals, power engineering, and municipal infrastructure. It leverages hydraulic drive technology for stable, high-torque bending, enabling it to handle thick-walled, large-diameter pipes that standard pipe benders cannot process.
What defines this machine is its balance of processing capacity and bending precision: it covers pipe diameters from 325mm to 1066mm (the largest elbow diameter) and wall thicknesses of 10-50mm, while strictly controlling quality indicators like pipe wall thinning rate (<10%) and elbow ellipticity (<10%). This ensures the bent elbows meet industry standards for structural strength, pressure resistance, and assembly compatibility, making it an indispensable tool for large-scale pipeline projects.
2. Core Technical Parameters: Performance & Precision Details
2.1 Pipe Bending Core Parameters
These parameters determine the machine’s processing scope and quality, ensuring it aligns with diverse pipe fitting production needs:
| Parameter Category |
Specification Details |
| Elbow Diameter Range |
Minimum: 325mm; Maximum: 1066mm (supports large-diameter elbow production for heavy-duty pipelines) |
| Pipe Wall Thickness |
10-50mm (handles thick-walled pipes suitable for high-pressure, high-temperature scenarios) |
| Bending Radius Range |
2.5D ≤ R ≤ 7D (D = pipe diameter; adjustable to match different elbow design standards, e.g., ANSI, DIN) |
| Bending Angle Range |
0-90° (covers common elbow angles for pipeline direction changes) |
| Pipe Wall Thinning Rate |
<10% (avoids material weakening caused by excessive thinning during bending) |
| Elbow Ellipticity |
<10% (ensures uniform pipe cross-section, preventing flow obstruction in pipelines) |
| Wave Degree (Heat-Affected Zone) |
h/<2% (minimizes surface irregularities on bent pipe surfaces) |
| Flatness (for 500mm Pipe Length) |
<3mm (maintains straightness of pipe ends for smooth assembly with other fittings) |
| Bending Radius Tolerance |
<20mm (ensures consistency in batch production, reducing assembly errors) |
| Bending Angle Error |
±1° (high precision for accurate pipeline layout) |
| Compatible Pipe Materials |
- Carbon steel seamless pipe: 20G, A106B, A106C
- Alloy steel seamless pipe: 355P12, 15CrMo, 12Cr1MoV, P22, P91, WB36
- Straight seam welded pipe: Q235B, Q345B, X42, X52, X60, X65, X70, X80 |
| Fixture Compatibility (Pipe Diameter) |
1066mm, 920mm, 820mm, 720mm, 630mm (quick fixture replacement for multi-size production) |
| Machine Weight |
82 tons (robust steel frame ensures stable operation during heavy-duty bending) |
2.2 Main Cylinder Technical Details (Key Drive Component)
The main cylinder is the core power unit of the hydraulic system, directly influencing bending stability and force output:
| Main Cylinder Parameter |
Specification Details |
| Main Cylinder Thrust |
200 tons (2 cylinders total; provides sufficient force for bending thick-walled pipes) |
| Structural Design |
Piston structure with front and rear flanges (enhances sealing and load-bearing capacity) |
| Test Pressure |
31.5Mpa (ensures cylinder safety under extreme working conditions) |
| Working Pressure Range |
0-25Mpa (adjustable according to pipe material and thickness) |
| Main Cylinder Inner Diameter |
250mm (optimized for balanced oil pressure distribution) |
| Main Cylinder Outer Diameter |
273mm (thick cylinder wall for pressure resistance) |
| Piston Rod Diameter |
190mm (high-strength design to avoid bending or deformation) |
| Material of Cylinder Body |
45# steel (heat-treated for enhanced hardness and wear resistance) |
| Effective Stroke of Main Cylinder |
10m (long stroke supports bending of long pipes without secondary positioning) |
3. Company Strengths: Professionalism & Global Support
3.1 Complete Pipe Fitting Machinery Portfolio
As a professional manufacturer of pipe fitting equipment, we offer a one-stop product chain to support end-to-end pipe fitting production, including:
- Elbow Forming Machines: Hydraulic hot forming elbow machine, hydraulic cold forming elbow machine (complementary to the pipe bending machine for diverse elbow production needs).
- Tee Forming Machine: Hydraulic cold forming tee machine (for manufacturing pipe tees, a key pipeline fitting).
- Surface Treatment Machine: Shot blasting machine (for rust removal and surface finishing of pipe fittings, improving corrosion resistance).
This integrated product range allows customers to build seamless production lines, reducing equipment compatibility issues and procurement costs.
3.2 Global Market Presence & Reliable After-Sales Service
- International Sales Network: Our machines have been exported to major industrial markets worldwide, including Russia, Egypt, Malaysia, India, Turkey, and Indonesia—serving local pipe fitting manufacturers and large infrastructure projects (e.g., oil pipelines, power plant steam systems).
- Overseas Office & On-Site Support: We have a dedicated overseas office in Mumbai, India. Our marketing and technical teams are stationed abroad for 7-8 months annually, enabling quick response to local customer needs.
- Warranty & Troubleshooting Guarantee: All machines come with a 1-year warranty. If a machine malfunctions, our after-sales technicians will dispatch to the customer’s site promptly (usually within 3-7 working days, depending on location) to diagnose and resolve issues, minimizing production downtime.
4. Application Scenarios: Industry-Specific Uses
This Hydraulic Used Pipe Bending Machine is tailored to high-demand scenarios requiring large-diameter, high-quality pipe elbows:
- Oil & Gas Transmission: Bending large-diameter carbon steel/alloy steel pipes (e.g., X80 straight seam welded pipes) into elbows for long-distance oil and gas pipelines, ensuring pressure resistance and leak-proof performance.
- Petrochemical Plants: Processing corrosion-resistant alloy pipes (e.g., 15CrMo) into elbows for high-temperature, high-pressure chemical reaction pipelines, where material stability is critical.
- Power Engineering: Bending high-temperature alloy pipes (e.g., P91) into elbows for thermal power plant steam pipelines, with strict control over ellipticity to avoid steam flow turbulence.
- Municipal Infrastructure: Manufacturing large-diameter Q345B straight seam welded pipe elbows for municipal water supply and drainage systems, supporting urban large-flow pipeline networks.
5. Contact Information & Cooperation
For inquiries about machine customization, quotation, or after-sales support, please contact our team:
- Contact Person: Darcy Dong
- Whatsapp/Wechat: 008615630731167
- Company Name: Guozhong International Limited
We welcome pipe fitting manufacturers, engineering companies, and distributors worldwide to discuss cooperation. Whether you need a single machine or an integrated production line solution, we will provide tailored support to meet your needs.
