Fully enclosed high-power fiber laser cutting machine with heavy-duty high-rigidity bed that reduces vibration in high-speed cutting. High-performance imported laser source cuts carbon steel, stainless steel, aluminum, copper, galvanized sheet and highly reflective materials continuously and precisely. Optimized cast-aluminum beam offers light weight, high rigidity and good dynamic performance; imported precision guides, reducers and ground racks keep long-term accuracy. Full enclosure protects operators from laser radiation, smoke and sparks. Models GPX4020-SG, GPX6020-SG, GPX6025-SG and GP8025-SG: cutting range from 2000x4000 to 2500x8000 mm, power 3000-15000 W, repeatability +/-0.03 mm, cutting thickness 0.5-50 mm, 380 V 50/60 Hz. Widely used in machinery manufacturing and steel processing for food machinery, construction machinery, locomotives, agricultural and forestry machinery, kitchen and bathroom ware, elevator manufacturing, home appliances, grain machinery, textile machinery, tool processing, automobiles, decoration and advertising, aerospace, shipbuilding, electrical manufacturing and petroleum machinery, as well as laser job-shop services.