Model | Power Head - 200 |
Drilling Hole Diameter (mm) | 140-254 |
Drilling Depth (m) | 200 |
Swing speed (rpm) | 45-70 |
Swing Torque (N.m) | 3400-4700 |




Changsha DTH Drill Construction Machinery Co., Ltd has more than 20 years of drilling
tools industry since 1996.It is the Institute of Metal Research of the Chinese Academy of Sciences, the NationalInstitute of Materials Research (NlMS) of Japan, and the partner of University ofQueensland, Australia, the Swiss Federal Institute of Technology (EMPA).The company's R&D and sales center is located in Changsha Xiangjiang Science andTechnology Innovation Park, and the production base is located in Jiuhua, Xiangtan. ltcovers an area of 16,000 square meters, with a production plant of 35,000 square metersand more than 200 employees.
1.Pre-sale service: Act as a good adviser and assistant of clients enable them to get rich and generous returns on their
investments .
(2).Design and manufacture products according to client's special requirement ;
(3).Train technical personnel for clients .
2.Services during the sale:
(1).Pre-check and accept products ahead of delivery .
(2). Help clients to draft solving plans.
3.After-sale services: Provide considerate services to minimize clients' worries.
(1).Complete After-sales service,professional engineers available to service machinery at home or oversea.
(2). 24 hours technical support by e-mail.
(3).Other essential technological service.