最(zui)簡單(dan)的(de)答案是因(yin)為(wei)生(sheng)產力和(he)利(li)潤。雙主(zhu)軸(zhou)(zhou)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心可(ke)以輕松(song)完(wan)成(cheng)同(tong)類單(dan)主(zhu)軸(zhou)(zhou)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心的(de)二倍工(gong)(gong)(gong)(gong)作量。假定保持機器(qi)忙(mang)碌的(de)工(gong)(gong)(gong)(gong)作負(fu)載是可(ke)用(yong)的(de)。毫無(wu)疑問，制造商可(ke)以使用(yong) 雙主(zhu)軸(zhou)(zhou)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心 在更短的(de)時間內(nei)完(wan)成(cheng)更多零件加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。隨著(zhu)產量的(de)增加(jia)(jia)(jia)(jia)，車間的(de)吞吐量大(da)大(da)提高(gao)。同(tong)時加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)兩個(ge)工(gong)(gong)(gong)(gong)件，只占(zhan)用(yong)一臺(tai)機器(qi)的(de)場地和(he)一名cnc操作員(yuan)，變相的(de)增加(jia)(jia)(jia)(jia)了廠(chang)房機器(qi)數量減少(shao)了人(ren)工(gong)(gong)(gong)(gong)成(cheng)本(ben)并且提高(gao)效(xiao)率(lv)。

　　在手機通(tong)訊、電子(zi)3C、新能源電池(chi)正負極等行業中(zhong)，一(yi)名cnc操作員可以(yi)完成多(duo)名cnc操作員的工作，從而降低(di)(di)了勞(lao)動力成本。雖然一(yi)臺(tai)雙主軸加工中(zhong)心比普(pu)(pu)通(tong)的機床的費(fei)用高(gao)很(hen)多(duo)，但(dan)是(shi)一(yi)臺(tai)雙主軸加工中(zhong)心的高(gao)產(chan)量、高(gao)效率(lv)、低(di)(di)勞(lao)動成本是(shi)遠遠優于普(pu)(pu)通(tong)單(dan)主軸加工中(zhong)心的。