Shandong Dacheng Machinery Technology Co., Ltd
  • ContactTony Wang
  • Phone86-531-83216898
  • AddressEast of Houjia Village South Road, Zhangqiu District Ji'nan,Shandong

Quality Control

1.What is your warranty?

Our warranty is 12 months after received the roots blower. During the warranty period, replace the damaged parts for free of charge. Out warranty period, to provide timely, high-quality technical services and price concessions spare parts to ensure continuous safe and high-quality equipment operation.

2. How long is the service life of roots blower?

In normal use environment

A- Service life of blower is more than 10 years.

B- Service life of Impeller is more than 60,000 hours.

C- Service life of bearing is more than 30,000 hours.

D- Service life of gear is more than 60,000 hours.

3. How does your factory control product quality? 

We have quality inspection department. Before sending out product, we check each product. If there is quality problem, we will produce new one.


  • ISO9001:2015
  • 02816Q11020ROM
  • 2016-07-24
  • 2019-07-25
  • CE
  • ENISO12100:2010
  • 2016-07-05
  • 2021-07-04