Greenstone Automotive Integrated Door Ring Laser Welding Intelligent Production Line

Presentation of the equipment's characteristics

The Greenstone Automotive Integrated Door Ring Laser Welding Intelligent Production Line is a high-efficiency laser welding automation solution for manufacturing automotive door ring (door frame ring) assemblies and related high-strength steel stamped parts. Designed for continuous mass production, the system supports laser self-fusion welding and laser filler-wire welding, helping OEMs and Tier suppliers achieve stable weld quality with low distortion. With modular design and full customization support, Greenstone can tailor the fixture concept, axis layout, part size range, and automation modules to match different vehicle platforms and takt-time requirements—ideal for body-in-white (BIW) applications demanding high consistency and high productivity.

processed samples

Highly Scalable, One Line for Multiple Models: The platform can be expanded with automatic loading/unloading, automatic fixture positioning, mobile material storage, online weld bead quality inspection, online marking, and online flipping, enabling flexible production and future upgrades.
Cost-Down + High-Quality Continuous Production: Optimized motion system and process control enable low-cost, high-quality, high-takt continuous production, reducing rework and improving yield for door ring assemblies.
Multi-Joint Capability for BIW Requirements: Supports welding for equal thickness & dissimilar thickness, tailored for typical door ring material stack-ups and combinations in automotive structures.
Better Lightweighting & Material Efficiency: Helps manufacturers improve material efficiency and lightweight goals—commonly promoted benefits include up to +15% material utilization, up to -20% part weight reduction, and up to 99% welding pass rate (process-dependent and subject to part design/material).
Customization Ready for Real Factory Needs: Greenstone supports customized workstation layout, fixtures, software recipes, safety enclosure, and line integration (PLC/MES interface options) to fit customer production lines.

Category	Item	Specification
Equipment	Equipment Name	Greenstone Automotive Integrated Door Ring Laser Welding Intelligent Production Line
Customization	Custom Build Support	Yes (fixtures, automation modules, line integration)
Motion System	X1/X11/X2/X12 (Gantry Door Ring Welding Axes) Stroke	≥1500 mm
	Max Speed	60 m/min
	Positioning Accuracy / Repeatability	0.06 mm / 0.04 mm
Motion System	Y1/Y2 (Welding Axes) Stroke	≥2200 mm
	Max Speed	60 m/min
	Positioning Accuracy / Repeatability	0.06 mm / 0.04 mm
Motion System	Z1/Z2 (Welding Axes) Stroke	≥120 mm
	Max Speed	20 m/min
	Positioning Accuracy / Repeatability	0.06 mm / 0.04 mm
Fixture Platform	X3/X4 (Fixture Platform Travel Axes) Stroke	≥6000 mm
	Max Speed	80 m/min
	Positioning Accuracy / Repeatability	0.06 mm / 0.04 mm
Welding Head	A2/A3 (Welding Head Rotary Axes) Rotation Range	≥ ±115°
	Max Linear Speed	50 m/min
	Angular Positioning / Repeatability	±20″ / ±15″
Seam Tracking	Y Axis (Seam Tracking Compensation) Stroke	±15 mm
	Max Speed	20 m/min
	Positioning Accuracy / Repeatability	0.03 mm / 0.02 mm
Process Capability	Applicable Materials	Carbon steel sheet, galvanized sheet, Al-Si coated sheet
	Thickness Range	0.8 mm – 3.2 mm
	Welding Process	Laser filler-wire welding, laser self-fusion welding
	Welding Speed	4000 mm/min – 11000 mm/min
Workpiece	Max Workpiece Size	3200 mm × 2200 mm
Power	Phase / Voltage / Frequency	3 / 380 V / 50 Hz
Protection	IP Rating	IP54
Size & Weight	Total Weight	≤20000 kg
	Footprint (L×W×H)	33000 mm × 16500 mm × 4200 mm