About Us

Company Profile

Yantai Yigao Precision Machinery Co., Ltd. was founded in 2008, mainly engages in the producing, selling and maintaining of the hydraulic breakers and their accessories. Our company is located in the beautiful coastal city of Yantai, Shandong province, China. It covers an area of 10000 square meters with more than 60 employees. Through continuous development we have accumulated rich experiences on producing hydraulic breakers, our company has got the ISO 9001 and CE certifications and technical patents and has built a professional and experienced technical R&D team, we have customers from all over of the world! We have created our own brand TRB and GAB. Our TRB and GAB brand hydraulic breakers have been widely used in construction, demolition, metallurgy, mining industry and so on.

We keep in mind that the good quality is the life of our company and keep the ‘sincerity, realism, development’ as our company’s philosophy and create the value for our customers. Our aim is to be the leading brand in the engineering machinery industry by providing the customers with good quality products and after-sale service and then can achieve mutual benefit and win-win business with our customers.

factory 1




General Manager of Management



R&D Director



Foreign Trade Manager



President Of The Board

The R&D team is led by well-known experts from China and South Korea. 

The management team comes from the world top 500 leaders company. 

Our production manager has more than 20 years experiences. 

Most of the workers have more than five years experiences, for the new workers,  we provide quality analysis training, plus a month of further training every year.


Since the founding of our company, we have been keeping to perfect ourselves and at the same time to face the challenge and ordeal, open new vision. We have got a lot of honors through years of accumulations, which prove our growth.

  • CNIPA 20210427

    CNIPA 20210427

  • CNIPA 20210413

    CNIPA 20210413

  • CE


  • ISO 9001:2015

    ISO 9001:2015

  • ISO 9001:2015

    ISO 9001:2015

  • CNIPA 20210316

    CNIPA 20210316

  • CNIPA 20210319

    CNIPA 20210319

  • CNIPA 20210312

    CNIPA 20210312




More than 10 years production, sales and service experience in hydraulic breakers.


Main Body Handling Workshop

We have imported CNC lather machines, processing centers and gun drilling machines which can complete all processes before heat treatment.


Exact-Grinding Workshop

Owning 7 high-precision grinding machines, back head/cylinder/front head and piston can be accurately grinded here. Accuracy can arrive to 0.001mm.


Assembling Workshop

Own a sealed assembling workshop with professional cleaning equipment and testing equipment. Equipped with professional assembling staff that can efficiently complete the main body assembling and testing.