About Us

Dezhou Sanjia Machine Manufacturing Co., Ltd.

Dezhou Sanjia Machine Manufacturing Co., Ltd., located in Dezhou Economic Development Zone, Shandong Province, designs, makes and sells general deep hole processing machine tools (including deep hole drilling machines, deep hole drilling and boring machines, and deep hole boring machines), as well as CNC deep hole drilling machines, CNC deep hole drilling and boring machines, and CNC deep hole powerful honing machines.

We boast advanced deep hole processing technology and an excellent, tireless and innovative research team. In the business philosophy of "Sincerity & Mutual Trust, Service First, Quality Supreme", and the development policy of "Design-based, Assembly-supplemented", we focus on customers' each detail and provide them with economical and reasonable deep hole processing solutions.


We have been committed to the R&D of deep hole technology, constantly made innovation, carefully designed and manufactured various gun drill machines and related products. Our strong technical force and design capabilities, as well as rich experience in deep hole processing surely guarantee that customers' requirements will be met.

Furthermore, we also can customize special deep hole processing equipment, special cutters, fixtures, measuring implements, etc for customers.

We provide products as follows

Deep Hole Processing Machine Tools:
Bore diameter 3 mm -1,000 mm.

Gun Drill Machines:
Bore diameter 1mm - 40 mm; max. hole depth 5,000 mm.

Deep Hole Drilling and Boring Machines:
Bore diameter 20 mm - 1,000 mm; max. hole depth 15,000 mm.

Deep Hole Honing Machines:
Bore diameter 30 mm - 1,000 mm; max. hole depth 15,000 mm.

We will strive to:
Provide customers with quality products at favorable prices; minimize customers' costs, and satisfy customers with fast and considerate pre-sales and after-sales service.

Company Size

Dezhou Sanjia Machine Manufacturing Co., Ltd. was established in May 2002, as a joint-stock private enterprise.

In May 2003, we purchased a piece of land with an area of 10,000 square meters in the north section of Mengshan Road, Dezhou Economic Development Zone, and built workshops (6,000 square meters), a Technical Development Center (1,000 square meters), a comprehensive office building, walls, a gatehouse, power supply and transformation facilities, etc.

Now, we have a variety of advanced machine processing facilities, such as CNC deep hole drilling and boring machines, CNC honing machines, CNC drilling and milling machines, and a vertical machining center.

Our company is a High-tech Enterprise in Shandong Province

In recent years, we have undertaken many a provincial and municipal key scientific and technological projects:

1. Special blast furnace cooling wall processing CNC machines and application software.

2. Super large cylinder processing CNC equipment and application software.

3. We have joined hands with the BUAA and Capital Aeronautics and Astronautics Equipment Co., Ltd. and developed CNC deep hole vibration drilling equipment and application software.

4. Now, we are working with the research team led by Zhang Zhonghua, an academician of Chinese Academy of Engineering, and developing active measurement devices used in deep hole processing.

5. Now we have successfully developed special oil drill collar CNC deep hole processing machines, solving the major difficulties in oil drill collar processing. The product performance has reached leading level in China.
6. The successfully developed special wind driven generator spindle deep hole drilling and boring machines have been launched and gained good economic benefit.