挖沙船具有成本低、工作效率高、操作方便等特點，可同時完成對沙石的抽取、過濾篩選及分離等工序。可以一次性生產出合格的產品，尤其針對水面寬闊且水下資源豐富的河道、池塘及廢棄的挖沙廠更是特別的適合采用挖沙船進行挖沙作業。挖沙船的種類很多，從挖沙方式上可分為機械挖沙和吸揚式挖沙兩大類。挖沙機械比較笨重，不像其他小型機械那樣靈活，潤滑油可以使挖沙船的各部件能夠更好的協調運行，因此我們更加要注意潤滑油的選用。

    ;  如(ru)果在火災(zai)或(huo)者爆(bao)炸事故易發的地段作業，挖沙(sha)船一定要(yao)使用抗(kang)燃性(xing)(xing)好的潤滑劑，不能使用易燃的機油(you)或(huo)者柴油(you)代替潤滑油(you)。同(tong)時潤滑劑必須(xu)對挖沙(sha)船的密封(feng)件有著良好的適應性(xing)(xing)，以(yi)防止密封(feng)件受(shou)到潤滑劑的氧化損壞。

   Dredging boat has the advantages of low cost, high working efficiency, convenient operation and so on, and it can complete the process of extracting, filtering and separating sandstone. Can produce a one-time qualified products, especially for the water wide and underwater resources of the river, pond and abandoned sand digging plant is particularly suitable for dredging sand work. There are many kinds of dredging sand, which can be divided into two categories: mechanicaldredgingandsuctionsuckingsanddigging.Sanddigging machinery is more bulky, unlike other small machinery as flexible, lubricants can make the parts of the dredgingboatcanbebettercoordinatedoperation,soweshouldpayattentiontotheselectionoflubricants.