SAW Welding Machine with Dolly
High-Efficiency Submerged Arc Welding System for Long Seam & H-Beam Fabrication
The SAW Welding Machine with Dolly is a robust and high-performance welding system designed for the automatic submerged arc welding (SAW) of long seams, especially in the fabrication of H-beams, box beams, and heavy structural components. Mounted on a motorized trolley (dolly), the welding head travels along the beam or joint line with consistent speed and precision, delivering deep penetration welds with excellent finish and minimal spatter.
This system uses the submerged arc welding process, where the welding arc burns beneath a blanket of flux, ensuring a clean, spatter-free weld with high deposition rates and minimal fume generation. The dolly enables automated linear motion along the weld path, reducing manual handling and increasing productivity, especially in large-scale or repetitive welding operations.
Ideal for use in steel structure workshops, PEB plants, and heavy fabrication industries, this machine delivers reliable and uniform weld quality while reducing labor costs and operational downtime.
Key Features:
Fully automatic SAW welding process with uniform weld penetration and high strength
Mounted on a motorized dolly for smooth, consistent travel along the beam
Ideal for welding straight seams on H-beams, box girders, tanks, and plates
Flux recovery system for recycling unused flux and maintaining clean weld zones
Adjustable welding speed, voltage, and travel control via control panel
Suitable for single or twin-wire welding setups
Heavy-duty construction ensures stable operation and long service life
Applications:
Pre-engineered buildings (PEB) and structural steel fabrication
Bridge and girder manufacturing
Tank and pressure vessel welding
Shipbuilding and heavy engineering projects
Box column and long seam welding operations
The SAW Welding Machine with Dolly is an essential tool for any fabrication facility seeking high productivity, consistent weld quality, and automated operation for long-length welding tasks—helping manufacturers achieve stronger, cleaner, and more efficient welds with reduced effort and greater speed.
| Technical Parameter | |
|---|---|
| Parameter / Model | HS-1250 |
| Rated Input Power (V) | 3-phase 380V ±10% 50/60 Hz |
| Rated Duty Cycle (%) | 100 |
| Rated Input Capacity (KVA) | 69 |
| Rated Output Current (A) | 60–1200 |
| Efficiency (%) | 85 |
| Power Factor | 0.93 |
| Insulation Grade | F |
| Shell Protection Degree | IP21S |
| Dimension (L×W×H) (mm) | 800 × 420 × 920 |
| Weight (Kg) | 130 |