Pile Cage Welding Machine for Sale
High-Efficiency Automatic Production: Fully automatic CNC control enables continuous high-speed welding up to 3000 mm/min, delivering 3–4× higher efficiency than manual work with only 5 operators per shift.
Stable Welding Quality & Energy Saving: Advanced resistance welding ensures ≤5% strength loss, splash-free joints, uniform weld quality, and over 30% energy savings (MF inverter version).
Flexible & Industry-Ready Design: Compatible with square and round PC piles, supporting multiple specifications with preset programs, 24-hour continuous operation, and intelligent fault monitoring.
Product Introduction
The Pile Cage Welding Machine is a fully automatic professional equipment designed for manufacturing high-strength reinforced cages for prestressed concrete (PC) pipe piles.
The machine features minimal welding strength loss, fast forming speed, rational structural design, and easy maintenance. Equipped with modern frequency conversion control and an intelligent human-machine interface (HMI), it ensures stable, reliable operation and consistent high-quality reinforcement cage production even under long-term high-speed running conditions.
Power Supply Versions
Medium Frequency (MF) Inverter Version
Medium frequency inverter technology
Over 30% energy saving compared with traditional systems
More stable welding current
Higher weld point uniformity
Ideal for high-precision, large-scale PC pile production
Power Frequency (PF) Version
Traditional power frequency transformer
Mature technology with low failure rate
Easy maintenance
Cost-effective solution
Suitable for medium and small production capacity
Product Features
Square & Round Pile Compatible
One machine supports both square piles and round piles, eliminating the need for additional equipment and reducing production investment.Core Resistance Welding Technology
DC power supply ensures rapid heating and high thermal efficiency.
Weld joints are firm, splash-free, with strength loss ≤5%, significantly outperforming conventional welding methods.Fully Automatic CNC Control
PLC + frequency conversion speed regulation.
Spiral pitch and cage length can be precisely preset with minimal error, eliminating manual welding inaccuracies.High Efficiency & Labor Saving
Welding line speed up to 3000 mm/min (traction speed max 7500 mm/min)
3–4 times more efficient than manual welding
No overlapping required for spiral reinforcement, saving 1.5% material
Only 5 workers required per shift
Stable, Durable & Easy Operation
Intelligent fault alarm system
Touchscreen control panel
30 minutes quick learning
24-hour continuous operation capability
Designed for large-scale production
Wide Reinforcement Adaptability
Compatible with various diameters of longitudinal and spiral rebars to meet full-range PC pile production requirements.
Core Application Fields
The PC Pile Cage Welding Machine is widely used in:
PC Pile Manufacturing Plants
Standardized reinforcement cage production for prefabricated square and round concrete piles.Infrastructure Prefabrication Factories
Piles for bridges, high-speed railways, highways, ports and docks.Building Construction Bases
Residential, commercial housing, industrial plants and foundation projects.Municipal Engineering Sites
Urban roads, underground pipeline systems, wastewater treatment plants.Foundation Engineering Contractors
On-site reinforcement cage prefabrication for subcontracted pile foundation projects.Water Conservancy Projects
Reservoirs, dams, river regulation and hydraulic engineering projects.
This machine is an essential solution for standardized and high-efficiency PC pile reinforcement cage production in infrastructure and prefabrication industries.
Product Structure
The machine mainly consists of the head unit, tail frame, trolley, support platform, and electrical cabinet.
| Component Name | Description | Remarks |
Support Platform | For placing steel bars | Manufactured by customer |
Rolling Welding Drum | For installing equal-diameter copper disc | Must be insulated from machine base |
Rolling Welding Unit | Press-welds spiral bar onto longitudinal bars | — |
Wire Feeding System | Feeds spiral reinforcement | Feeding reel should not be overloaded |
Machine Base | Installation base | Must not electrically connect with tail frame |
Trolley | Pulls longitudinal bars forward | — |
Tail Frame | Trolley traction guide rail | — |
Product Parameters
| Item | Technical Specification |
Cage Diameter | Ø300, Ø400, Ø500, Ø600 mm |
Cage Length | 7–15 m (extendable up to 45 m) |
Number of Longitudinal Bars | 6, 7, 10 or 7, 10, 12, 14 (customizable) |
Longitudinal Bar Diameter | Ø7.1, Ø9.0, Ø10.7 mm |
Spiral Bar Diameter | Ø4–Ø6 mm |
Spiral Pitch | 0–100 mm |
Traction Speed | Max 7500 mm/min |
Drive Power | 8.4 kW |
Welding Power | 300 kVA |
Main Shaft Speed | 0–80 r/min |
Welding Method | Resistance Welding |
Control Mode | Automatic Control |
Welding Material | Steel with carbon content <0.20% |
Welding Strength Loss | ≤5% |
Tensile/Shear Force at Weld Point | ≥200 kg |
Transformer Cooling | Air cooling / Self-cooling |
Power Supply | 380V ±5%, 50Hz |
Ambient Temperature | -5℃ to +35℃ |
Relative Humidity | <85% |
Machine Weight | Approx. 5 tons |
