G-SBE20P series diode end-pump laser marking machine adopt full solid state laser pump, end-pump laser technique which is top in the world, combine with special heat lens repair laser pump chamber, narrow pulse wide acoustooptic Q switch technique ,and high precision cooling system which make the high power, high beam quality ,high reliability and stability. good reliability and high stability ,more good at laser beam quality ,The mark line is more fine; compare with lamp pump ,no need to change krypton lamp, live up to non maintenance basically.