CNC Automatic Concrete Pipe Steel Cage Roll Welding Machine
Medium-Frequency Inverter DC Welding · CNC Variable Pitch · Ø300-Ø3000mm Rebar Cages
Steel cage welding machines produce high-quality reinforcement cages for reinforced concrete pipes, RCC pipes, culvert pipes, and precast concrete products. Essential equipment for concrete pipe plants manufacturing drainage, sewage, and pressure pipes.
From automatic roller welders to large-diameter cage formers, our range covers all cage welding needs for concrete pipe making machines, from 200mm to 4000mm diameter. CNC and fully automatic options available.
The reinforcement cage is the skeletal backbone of any reinforced concrete pipe. Learn how automated CNC resistance cage welders achieve structural compliance with ASTM C76, BS 5911, and GB/T 11836 through precision pitch control and double-loop end reinforcement.
Read Technical Guide & QA ChecklistProduction Models & Parameter Matrix
| Equipment Model | Diameter Range | Pipe Length | Core Feature | Installed Power | Speed / Frequency | Shift Capacity |
|---|---|---|---|---|---|---|
| HLY-GH1000 | Ø 300 – 1000 mm | 2000–3000 mm | Main Wire Ø 4–10 mm | 100 kVA | 0–35 r/min | 8–10 cages/h |
| HLY-GH1500 | Ø 600 – 1500 mm | 2000–3000 mm | Main Wire Ø 5–12 mm | 125 kVA | 0–30 r/min | 7–9 cages/h |
| HLY-GH2000 | Ø 800 – 2000 mm | 2000–3500 mm | Main Wire Ø 6–14 mm | 160 kVA | 0–25 r/min | 6–8 cages/h |
| HLY-GH2500 | Ø 1000 – 2500 mm | 2000–4000 mm | Main Wire Ø 6–16 mm | 200 kVA | 0–20 r/min | 4–6 cages/h |
| HLY-GH3000 | Ø 1200 – 3000 mm | 2000–4000 mm | Main Wire Ø 8–18 mm | 250 kVA | 0–15 r/min | 3–5 cages/h |
Metallurgy, CNC Machining & Quality Infrastructure
Engineered to withstand millions of severe dynamic compaction cycles without structural fatigue or dimensional deviation.
Medium Frequency Inverter DC Welder
Operates at 1000 Hz inverter frequency, delivering smooth DC welding current without grid fluctuation, resulting in zero weld spatter and 100% bond strength.
Dual Drive Chuck Synchronisation
Front and rear chucks driven by synchronized servo motors with precision planetary reducers ensure zero torsional twist on large-diameter reinforcement cages.
Programmable Pitch Transition
PLC automatically changes spiral wire pitch between dense ends (50mm for bell/spigot) and standard middle section (100–150mm) seamlessly during welding.
Heavy Alloy Water-Cooled Electrode
Chromium-zirconium-copper (CuCrZr) welding wheel with internal circular water cooling delivers > 100,000 spot welds before resurfacing.
Complete Production Line Workflow & Curing Cycle
From aggregate batching to final hydraulic testing, our turnkey engineering ensures high output with minimized labor headcount.
Main Rebar Loading
Pre-cut longitudinal rebar rods are inserted into the quick-clamping chuck holes around the rotating ring.
Spiral Wire Attachment
Coiled spiral wire from pay-off stand is fed through straightening rollers and spot-welded to the first main bar.
Automated CNC Roll Welding
Servo trolley moves forward while chuck rotates, automatically resistance-welding every intersection at programmed pitch.
Bell/Spigot Dense Pitch
Upon approaching cage ends, the CNC controller automatically compresses pitch to satisfy high shear reinforcement specs.
Pneumatic Ejection & Unloading
Hydraulic cradle supports cage weight, clamps open, and the completed rigid steel cage rolls smoothly onto the receiving racks.
Standard Turnkey Production Line Scope of Supply
We deliver fully integrated plant packages including mechanical host, electrical VFD console, hydraulic station, and civil foundation blueprints.
Primary Engineering Applications
Reinforced Concrete Pipe (RCC)
Essential reinforcement cages for ASTM C76 and BS 5911 concrete drainage and sewer pipes.
Trenchless Jacking Pipe Reinforcement
Double-cage reinforcement structures with high radial shear resistance for microtunneling.
Precast Concrete Piles & Columns
High-precision circular rebar cages for foundation piles and precast building columns.
Box Culvert & Manhole Steel Cages
Circular and pre-curved steel skeletons for precast manhole chambers and drainage vaults.
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Speak Directly with Chief Equipment Engineer Manager Wang
No middleman markups. Receive custom plant layout blueprints, machine sizing recommendations, and commercial quotation within 24 hours.