Longitudinal Seam Welding Machine Schnelldorfer LINEARWELD XL EXTL 4100

Longitudinal Seam Welding Machine Schnelldorfer LINEARWELD XL EXTL 4100


LINEARWELD XL EXTL 4100 is a high-performance industrial machine designed for the automatic longitudinal welding of external metal seams. It belongs to the XL series, specifically engineered to handle heavy-duty applications, thick plates (up to 15 mm), and multi-shift production environments where reliability and precision are paramount. Equipped with the HMI “neXt” control system and Siemens servo drives, this machine is fully Industry 4.0-ready.

Features and Advantages

Feature Description
Heavy-Duty Construction The EXTL series is built for extreme loads, offering maximum frame rigidity and durability for industrial use.
Superior Weld Quality Optimized gas delivery systems ensure minimal part deformation and welds without discoloration (heat tint).
Process Versatility Supports TIG, Plasma, and MIG/MAG processes, handling material thicknesses from thin gauge up to 15 mm.
Industry 4.0 Ready Integrated neXt Control provides OPC UA connectivity, OEE monitoring, Remote Access, and step-by-step setup assistance.
Rapid Setup Features a specialized mandrel with a quick-change backing bar and a pre-clamp function for fast and accurate workpiece positioning.
High Precision Siemens servo drives maintain a constant arc length with a tolerance of 0.05 mm across the entire welding path.

Standard Equipment

  • Control System: Siemens S7-1515 PLC with a SIEMENS SINAMICS Unified Comfort HMI Panel.

  • Drive System: SIEMENS SINAMICS S210 servo motors for ultra-precise torch positioning.

  • Clamping: Pneumatic system with pre-clamp feature and UNI clamping fingers made from high-wear copper alloy (CuCrZr).

  • Mandrel & Cooling: Steel Frame mandrel with a quick-change backing bar and integrated "sandwich" cooling for both the mandrel and the torch.

  • Gas Management: Integrated delivery for Backing Gas, Torch Gas, and a three-zone fold-out trailing gas nozzle.

  • Safety: Fully compliant with CE-Mark (UL-prepared versions available).

Options and Enhancements

  • Welding Modules: Cold Wire Feeder, AVC (Automatic Voltage Control), Torch Oscillation Unit, and Plasma-Keyhole integration.

  • Advanced Monitoring: 12" Touch HMI upgrade, Mass Flow Control for gas, and WeldQAS or ArcView systems for real-time weld monitoring.

  • Automation & Ergonomics: Mobile HMI station, roller tracks, and Insertion Trolleys for loading heavy or large-diameter workpieces.

  • Specialized Components: Various backing bar types (SOFT, STRONG, HEAVY DUTY) and heightening elements to increase the maximum workpiece diameter.

  • Software Packages: Advanced Adjustments, Advanced Store (recipe management), and Remote Access modules.

Technical Specifications

Parameter Value
Max. Welding Length 4120 mm
Material Thickness 0.50 mm – 15.00 mm
Min. Welding Diameter 385 mm
Max. Workpiece Diameter 1050 mm (expandable with options)
Compatible Processes TIG (GTAW), Plasma, MIG/MAG (GMAW), High-perf TIG
Torch Travel Speed 10 cm/min – 770 cm/min
Control Architecture Siemens S7-1515 PLC & HMI "neXt"
Power Supply 400/230 V / 3 / N / PE; 50/60 Hz
Pneumatic Supply 6 bar, dry, filtered

LINEARWELD-XL-EXTL-2022-v1.1-EN-Mail

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