Cold forming for 1D and 1.5D carbon steel and stainless steel elbows. Steel ball and core rod methods. 200T to 4,000T tonnage. PLC intelligent control with semi-automatic demolding.
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A hardened steel ball is pushed through the pipe by hydraulic pressure, gradually shaping the elbow against the mold cavity wall. Ideal for standard 1D short-radius elbows. Fast cycle, minimal material waste.
An internal mandrel supports the pipe wall from inside during the entire forming process — essential for 1.5D elbows and larger diameters. Includes semi-automatic mechanical demolding device.
Full PLC control with preset programs for different elbow angles, radii, and wall thicknesses. Operators can store and recall forming recipes. Real-time pressure and position monitoring.
Five models cover the full range from DN15 (1/2 inch) to DN700 (28 inch) elbows. All models share the same control interface — one training investment for the entire product line.
Optimized for carbon steel (A106, A234 WPB/WPC) and stainless steel (SS304, SS316) pipe fittings. Proven in high-volume waterworks, oil & gas, and construction projects.
Independent hydraulic circuits for clamping, forming, and demolding. Each cylinder has independent pressure and flow control. Fast approach, controlled pressing, gentle return.
| Model | Clamping Force (KN) | Max Daylight (mm) | Main Cylinder (KN) | Side Cylinder (KN) | Cylinder Stroke (mm) | Work Table (mm) | Motor (kW) | Application Range |
|---|---|---|---|---|---|---|---|---|
| HLE-200T | 2,000 | 800 | 2,000 | 315 | 200 | 800x650 | 18 | DN15-DN50 (1/2-2 inch) |
| HLE-630T | 6,300 | 1,200 | 6,300 | 500 | 400 | 1,200x900 | 45 | DN25-DN100 (1-4 inch) |
| HLE-1000T | 10,000 | 1,600 | 10,000 | 800 | 600 | 1,600x1,200 | 75 | DN50-DN150 (2-6 inch) |
| HLE-2000T | 20,000 | 2,200 | 20,000 | 1,600 | 1,000 | 2,200x1,600 | 132 | DN150-DN300 (6-12 inch) |
| HLE-4000T | 40,000 | 3,500 | 40,000 | 3,150 | 2,800 | 4,100x3,000 | 242 | DN300-DN700 (12-28 inch) |
All specifications subject to final engineering confirmation. Custom tonnage and stroke configurations available on request.
A106, A234 WPB/WPC for water, steam, and oil pipelines. Standard 1D and 1.5D short-radius elbows.
SS304, SS316 for corrosive media. Chemical, petrochemical, and desalination applications.
2205 duplex, F51, and alloy steel grades on request. High-pressure and high-temperature service.
DN15-DN100 standard elbows for municipal water supply and fire protection systems.
High-pressure elbows for oil, gas, and refinery piping systems. Meets API and ASTM standards.
Structural and mechanical building piping. Large-diameter elbows for commercial construction.
HLE series hydraulic cold forming machines in factory and operation
Multi-station hydraulic forming unit with precision tool head
PLC intelligent control panel with real-time pressure monitoring
HLE series hydraulic elbow cold forming machine (4-post design)
| Criteria | HLE Cold Forming | Traditional Hot Forming |
|---|---|---|
| Wall Thickness | Thinner and material saving 10-20% | Thicker wall required for hot strength |
| Surface Finish | Smooth - no oxide scale, no pickling needed | Rough surface, requires acid pickling |
| Mechanical Properties | Cold work hardening - stronger grain structure | Grain structure damaged by heating |
| Energy Cost | No heating furnace - 30-50% lower energy | High energy for furnace heating |
| Production Speed | Fast cycle, no cooling waiting time | Long cycle: heating + forming + cooling |
| Environmental | No furnace emissions, no acid waste | Furnace emissions, acid rinse wastewater |
Steel ball passing forming uses a hardened steel ball pushed through the pipe to gradually shape the elbow against the mold cavity wall - ideal for standard 1D short-radius elbows. Core rod forming uses an internal mandrel to support the pipe wall from inside during the entire forming process - essential for 1.5D elbows and larger diameters. The core rod model includes a semi-automatic mechanical demolding device for efficient part release.
Tonnage depends on elbow diameter, wall thickness, and material. HLE-200T handles DN15-DN50 (1/2-2 inch). HLE-630T covers DN25-DN100. HLE-1000T covers DN50-DN150 (2-6 inch). HLE-2000T handles DN150-DN300 (6-12 inch). HLE-4000T is required for DN300-DN700 (12-28 inch). Share your pipe specifications and we will recommend the right model.
Carbon steel (A106, A234 WPB/WPC) and stainless steel (SS304, SS316, 316L). Duplex stainless steel and alloy steels available on request.
Yes. APEX provides on-site installation, debugging, and operator training. Remote video support and documentation in Portuguese and English are standard. FAT (Factory Acceptance Test) with your actual pipe fittings is available at our Taizhou facility.
Share your elbow specifications and current production method - we will compare cold forming vs. your current process and calculate your potential savings.
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