In the previous case with UZINEX, ARS INDUSTRIAL bought a mobile photovoltaic plant to power the 100% electric Tracto Grundodrill horizontal drilling rig — the drilling part of the crossing. Logically, after horizontal drilling under a road and pulling the PE pipe through the crossing, the pipe ends must be welded correctly and tightly, with documented traceability for audit.
ARS evaluated two options: outsourcing the butt welds to third parties (with significant monthly costs over crossing campaigns) or internalizing the capability by buying a package of its own equipment. It chose internalization — and asked for a package that covers the entire range of diameters found on water-sewer sites, not a single "basic" machine.
The final configuration: two mechanical butt-welding machines covering the 200-630 mm diameter range with overlap (HW500 + HW630), an electrofusion unit that extends the range to 25-1000 mm for fittings (WP100K), and a separate digital recorder (WPD20) that records every welding cycle in line with ISO and DVS for a complete audit.
The 4 machines work together as a system: the HW units for mechanical butt welding, the WP100K for electrofusion fittings, the WPD20 for documentation. No machine is redundant — each solves a layer of the process.