Spot‑Ring Laser Welding Head

Product Overview

The spot‑ring laser welding head series includes Adjustable Spot‑Ring Collimator, 20kW, 50kW and 100kW high‑power spot‑ring welding heads. Adopting DOE optical elements to generate composite spot‑ring beam, it enables spot‑ring welding with conventional cutting‑type fiber lasers without expensive dedicated spot‑ring laser sources, cutting total system cost significantly.

Covering power range from 6kW up to 100kW, part models are equipped with real‑time lens temperature monitoring, full‑coverage water‑cooling system and high‑level dust‑proof sealing. Compatible with field lens and galvanometer scanner for high‑speed welding. It effectively suppresses welding defects such as spatter, pores and holes. Suitable for thick‑plate welding, high‑reflectivity material processing, new‑energy manufacturing and other high‑power laser applications. Modular optical design allows easy lens replacement and on‑site maintenance for automated production lines.

Technical Features

1. Flexible spot‑ring energy adjustment: Continuous energy ratio adjustment from 0‑100% : 0‑100% by moving DOE lens. Operators tune central‑to‑ring energy distribution for diverse materials and weld conditions. The 6kW adjustable collimator works with standard cutting lasers and reduces system cost by 50%.
2. Full‑range power capacity & stable high‑power performance: Rated power covers 6kW, 20kW, 50kW and 100kW. 20‑100kW versions adopt integrated collimation‑focusing optics, optimized for thick‑plate and high‑reflective metals. Comprehensive water‑cooling system ensures long‑term stable operation under multi‑kilowatt power.
3. Multi‑protection for long service life: High‑grade dust‑tight sealing prevents lens contamination caused by falling dust. 50kW & 100kW models support real‑time lens temperature monitoring for early fault warning. Reliable mechanical sealing improves overall safety and service life.
4. Modular & service‑friendly structure: Modular lens assembly for quick replacement without complicated disassembly, minimizing production‑line downtime.
5. Superior welding performance: Optimized spot‑ring beam improves molten‑pool stability, facilitates metal‑vapor escape and reduces spatter, porosity and hole defects. Compatible with field lens and galvanometer scanner for high‑speed welding processes.

Performance Parameters

Application Scenarios

• New‑energy industry: Welding of battery housing, busbar and tabs for copper & aluminum high‑reflective materials, reducing spatter and porosity to improve production yield.
• Heavy‑duty thick‑plate welding: Welding for construction machinery, shipbuilding and pressure vessels, enhancing keyhole stability and minimizing hole defects.
• High‑reflective & dissimilar‑metal welding: Copper, aluminum and copper‑aluminum dissimilar joints. Pre‑heating effect from ring beam improves laser absorptivity and broadens process window.
• High‑speed scan welding: Working with galvanometer scanners and field lenses for high‑speed sheet‑metal welding.
• Automated production: Compatible with robot cells and special‑purpose welding machines for mass continuous manufacturing.