EMAG ELC 6
Key Specifications
max external diameter
max workpiece height
axial welding diameter
radial welding diameter
initial tension
system type
Overview
The EMAG ELC 6 is a production laser welding system designed for maximum output on classic powertrain components with round welds. Built around a rotary indexing system with dedicated machining and loading/unloading stations, the ELC 6 uses a fixed-lens/moving-workpiece principle that keeps the optical system stationary while the workpiece rotates and translates — a design that enhances safety, simplifies lens maintenance, and ensures consistent beam delivery to the weld joint.
The ELC 6 handles workpieces up to 300 mm in external diameter and 300 mm in height, with axial welding diameters from 75 to 200 mm and radial welding diameters from 75 to 250 mm. This work envelope covers the majority of automotive differential housings, torque converter assemblies, transmission components, and similar round-weld powertrain parts. The initial clamping tension capability of up to 10 kN (with a 30 kN option) ensures secure fixturing during the welding process, which is critical for maintaining joint integrity on press-fit assemblies.
The rotary indexing architecture separates the loading/unloading station from the machining station, enabling workpiece exchange during the welding cycle. This overlap of handling and process time maximizes laser utilization and throughput. The electric drive units — chosen over pneumatic and hydraulic systems — provide precise, repeatable clamping and motion control while reducing maintenance requirements and contamination risks in the laser welding environment.
The ELC 6 emphasizes compact design, excellent accessibility, and short retooling times, making it suitable for both dedicated high-volume production and moderate-volume applications with frequent changeover between part numbers. The minimization of equipment and change parts reduces changeover time and operator training requirements. For automotive powertrain plants producing differential assemblies, torque converter housings, and similar round-weld components, the ELC 6 delivers the combination of throughput, quality, and operational simplicity that production demands.
Full Specifications
| Parameter | Value |
|---|---|
| Max External Diameter | 300 mm (12 in) |
| Max Workpiece Height | 300 mm (12 in) |
| Axial Welding Diameter | mmin |
| Radial Welding Diameter | mmin |
| Initial Tension | Up to 10 kN (30 kN optional) |
| System Type | Rotary indexing with fixed lens / moving workpiece |
| Stations | Machining station + loading/unloading station |
| Drive Type | Electric (no pneumatic/hydraulic) |
| Design Principle | Fixed lens, moving workpiece |
| CNC Control | Siemens SINUMERIK 840D sl |
| External Diameter Max | mmin |
| Workpiece Height Max | mmin |
Specifications sourced from emag.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Rotary indexing system enables workpiece loading during welding cycle, maximizing laser utilization and throughput
- Fixed-lens/moving-workpiece design enhances safety and simplifies optical maintenance compared to moving-lens systems
- 300 mm diameter and height capacity covers the majority of automotive powertrain round-weld components
- Electric drive units provide precise clamping and motion control without hydraulic contamination risks
- Compact design with excellent accessibility and short retooling times supports both high-volume and mixed production
- 30 kN optional clamping force secures heavy press-fit assemblies during the welding process
Limitations
- Optimized for round welds — complex non-circular weld paths may require a different EMAG laser platform
- 300 mm maximum diameter excludes larger powertrain components like truck differential housings
- Fixed-lens design limits flexibility for weld geometries that benefit from lens repositioning during the cycle
- Application-specific fixturing adds engineering cost and lead time for each new part introduction
Best For
Frequently Asked Questions
01
In the ELC 6, the laser lens remains stationary while the workpiece rotates and translates to create the weld path. This approach keeps the optical system in a fixed, protected position, simplifies lens maintenance, and provides consistent beam delivery. The workpiece motion is controlled by CNC axes for precise, repeatable weld paths.
02
The ELC 6 is optimized for round welds on cylindrical and disc-shaped components, including circumferential seam welds (axial 75-200 mm) and radial face welds (75-250 mm). These cover the majority of automotive powertrain welding applications on differential housings, torque converters, and transmission drums.
03
The rotary indexing system has separate machining and loading/unloading stations. While one part is being welded at the machining station, the operator or automation system loads the next raw part and unloads the previous finished part at the load station. This overlapping of handling and process time maximizes laser utilization.
04
Electric drives provide precise, repeatable clamping and motion control without the contamination risk, maintenance burden, and environmental concerns of hydraulic systems. In a laser welding environment, eliminating hydraulic oil also reduces fire risk and simplifies cleanroom compatibility for sensitive applications.
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