fiber laser welding head with reduced burn through

{"cid":"91219763","title":"Collimator Lens 1064nm Fiber Laser Welding Head 0 - 5mm Adjustable Laser Beam","imgUrl":"https:\/\/img.chinax.com\/nimg\/e9\/b5\/923f2699632c2c436daa24c59cb9-200x200-1.jpg","attrs":{"Price":"Negotiatle","Brand Name":"HanWei","Model Number":"HW-20-60150","Minimum Order Quantity":"1","Delivery Time":"10 working days","Place of Origin":"Shenzhen.China","Certification":"CE","Packaging Details":"size, weight, packing method","Payment Terms":"T\/T","Supply Ability":"2000 set \/month","Fiber Connector":"QBH","Swing Pattern":"Line '-'","Position Guide":"Red Guide Light","Welding Power":"High Power","Collimation":"60","Laser Wobble Method":"Laser Beam Swing","Beam Diameter":"Not Specified","Working Distance":"Not Specified","Collimating Length":"60","Focus Length":"150","Welding Speed":"High Speed","Control Line Length":"1km","Laser Beam Size":"0~5mm adjustable","Laser Type":"Fiber Laser","Gas":"Nitrogen Or Argon","Feeding Material":"Steel, ALuminium","Laser Wavelength":"1064nm","Focusing Lens":"Collimator Lens"}}

{"cid":"91147779","title":"1000W 1500W 2000W 3000W Handheld Laser Welding Cutting Cleaning Machine 3 In 1 Fiber Laser Welding Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/1e\/14\/86e5e3317fe3e5c4d1452a116e0e-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"Perfect Laser","Model Number":"PE-W2000","Minimum Order Quantity":"1 set","Delivery Time":"7-12 Working Days","Certification":"CE \/ISO \/TUV \/SGS","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"500 sets\/per\/mo","Packaging Details":"wooden case","Machine Name":"3 in 1 Handheld Metal Fiber Laser Welding Machine","Laser Type":"Fiber Laser","Adjustable Line Width":"0-5mm","Laser Wavelength":"1070nm","Output Fiber Length":"10m","Fiber Bend Radius":"100mm","Way of Working":"Continuous \/ Modulation","Welding Speed Range":"0-120mm\/s","Cooling Method":"Built-in Cold Water","Product Warranty":"12 months"}}