Welding Type | Fully automatic longitudinal bar welding + automatic spiral welding (unmanned operation) | Automatic spiral welding; longitudinal bars require manual installation and welding | Fully automatic longitudinal bar welding + automatic spiral welding (unmanned operation) |
Welding Method | Automatic CO₂ gas shielded welding, reliable quality | Manual welding, unable to consistently meet welding standards | Automatic CO₂ gas shielded welding, reliable quality |
Applicable Cage Diameter | 790–2340 mm without changing molds | 800–2200 mm; requires multiple mold replacements | 790–2340 mm without changing molds |
Diameter Adjustment | CNC support ring automatic adjustment | Different molds required for different diameters; mold replacement is cumbersome | CNC support ring automatic adjustment |
Feeding Method | CNC chain conveying system, fully automatic feeding | Manual bar insertion, time-consuming and labor-intensive | CNC chain conveying system, fully automatic feeding |
Spiral Bar Diameter | 6–16 mm | 6–16 mm | 6–16 mm |
Cage-to-Cage Connection | Automatic measurement compensation, zero alignment error | Alignment deviation occurs; requires tightening and secondary adjustment | Automatic measurement compensation, zero alignment error |
Single/Double Longitudinal Bars | Supports both single and double longitudinal bars | Only single longitudinal bars | Supports both single and double longitudinal bars |
Single/Double Spiral Bars | Supports both single and double spiral bars | Only single spiral bars | Supports both single and double spiral bars |
Horizontal Double Main Bars | Achievable | Not achievable | Achievable |
Inner Support Ring Spacing Adjustment | CNC moving welding head, automatic adjustment with high precision | Manual post-adjustment; precision cannot be guaranteed | CNC moving welding head, automatic adjustment with high precision |
Number of Longitudinal Bars | 4–128 bars supported | Different molds required for different quantities | 4–128 bars supported |
Required Operators | 1 operator completes entire production process | 4–6 operators required | 1 operator completes entire production process |
Production Capacity | Example: Ø1.6 m cage — 10–12 units per shift | Example: Ø1.6 m cage — 6–8 units per shift | Example: Ø1.6 m cage — 20–24 units per shift |
Longitudinal Bar Welding Time | Example: Ø1.6 m, 12 m cage — 15 minutes per section | Manual control; welding time cannot be guaranteed | Example: Ø1.6 m, 12 m cage — 15 minutes per section |
Spiral Welding Time | Example: Ø1.6 m, 12 m cage — 15 minutes per section | 20 minutes per section | Example: Ø1.6 m, 12 m cage — 15 minutes per section; synchronized with longitudinal welding, total integrated time 15 minutes per section |
