Reinforced Cage Welding Machine for Concrete Pipe Production
A Revolution in Precision, Speed and Strength
The Reinforced Cage Welding Machine is the core of modern reinforced concrete pipe manufacturing. Designed for diameters from 300 mm to 3 600 mm and lengths up to 12 m, it cold-rolls and resistance-welds longitudinal and circumferential rebar into a perfect, rigid spiral cage. PLC-controlled servo drives guarantee pitch accuracy to ±1 mm, while the stepless speed range of 0–30 m/min adapts instantly to pipe class, wall thickness and design code. The result is a cage with uniform concrete cover, superior bond and optimal structural performance for jacking, culvert, drainage or prestressed applications.
Key advantages translate directly into profit. Continuous welding replaces manual tying, cutting labor by 70 % and cycle time by 50 %. A single operator monitors the HMI touch panel; automatic wire feeding, straightening, welding and cutting eliminate repetitive tasks and reduce injury risk. Modular electrode magazines allow material changes in less than five minutes, while a quick-change sizing collar shifts from one diameter to another in ten minutes—perfect for just-in-time orders. Energy-saving MFDC inverter welders lower power consumption by 30 % compared with traditional AC systems, and a built-in fume extraction hood keeps the shop floor clean and compliant with ISO 45001.
Durability and intelligence are built in. The frame is fabricated from normalized Q355 steel and stress-relieved to maintain micron-level alignment after 20 000 cycles. All bearings are sealed SKF units rated for ≥40 000 h; drive gears are hardened to 58 HRC and oil-bath lubricated. The control system stores 500 product recipes and interfaces with factory ERP via OPC-UA. Real-time monitoring of welding current, cage diameter and pitch deviation is displayed graphically; alarms trigger automatic stop and fault logging. Remote diagnostics by VPN allow our engineers to troubleshoot anywhere on earth within minutes.
Installation is turnkey. The machine arrives pre-wired on a single baseplate; only 380 V three-phase power, 6 bar compressed air and Ethernet are required. On-site calibration takes one day and includes operator training, CE-compliant safety fencing and light curtains. Optional accessories—automatic butt-welding station for longitudinal bars, hydraulic cage expander, and robotic cage transfer to the mold—create a fully automated cell that needs only three workers per shift. With global references from Houston to Hanoi, our 24/7 service network guarantees 95 % uptime and spare parts availability within 48 h, making the Reinforced Cage Welding Machine the safest investment in durable, high-quality concrete pipe production today.