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Bringing excellence by originality and realizing dreams by high quality

Yantai Eddie Precision Machinery Co., Ltd was founded in August of 2003 and listed on the main board of the Shanghai Stock Exchange in 2017( stock code : 603638 ), covers an area of 670000 ㎡. 2,800 staff allocated proportionately across the divisions handling hydraulic hammers, attachments, hydraulic parts, robots, machining tools, energy storage technologies and equipments, precision linear motion, etc. After two decades of development, we have now made an international reputation as a precision Mechanical Technology Company, having sold our products to more than 90 countries and regions, establishing an excellent corporate image and international brand.

Established in 2021, EDDIE Linear Motion is a division directly under the management of Yantai EDDIE Precision Machinery Co., Ltd. We specialize in the R&D, manufacturing, and sale of ball screws, linear guide rails, electric cylinders, as well as other precision linear motion products. At the same time, we also supply the core parts of high-end equipment that are extensively used in CNC machine tools, semiconductors, automobiles, engineering machinery, aeronautics, and astronautics. We aim to become a world-class research, development, and manufacturing company of high-precision linear motion products.

32000⁺

Square meters

160⁺

billion RMB（≈22 billion USD），Market value of parent company，September 2023.

10⁺

Patent Qualification

Core technology

Failure mechanism and rolling characteristics analysis of rolling functional components

Failure mechanism and rolling characteristics analysis of rolling functional components

Norm

(1) A mechanical model of rolling element of rolling functional components;
(2) A contact stress model of rolling element and raceway.

Achievement

(1) A set of failure mechainism of rolling functional components.
High reliability structure design of rolling functional components

High reliability structure design of rolling functional components

Norm

(1) After the design optimization,the product performance reaches the following indicators:the adaptation ratio of raceway radius to steel ball reaches ra0.55±0.003,the optimal contact angle reaches 44°±1°.

Achievement

(1) Each set of production drawings of the raceway profile of ball screw and nut,silder and guild rail ;
(2) Three invention patents.
Processing and heat treatment process of high precision rolling functional components

Processing and heat treatment process of high precision rolling functional components

Norm

(1) Formulating a complete technological procedures for peristaltic grinding of raceway profile, complete technological procedures and technological documents of raceway profile hardening processing,complete heat treatment technological documents;
(2) Reach the following performance:bending deformation after quenching:8mm/4000mm, torsional deformation:2mm/4000mm,metallographic structure:M3-6.

Achievement

(1) Three professional production lines of high efficiency peristaltic grinding;
(2) Three ball screw raceway proflie online cold and hot processing production lines;
(3) Two invention patents.
Comprehensive performance testing of rolling functional components

Comprehensive performance testing of rolling functional components

Norm

(1) Life≥100km or 30000 hours;
(2) Noise≤76dB;
(3) When running at high speed,the temperature increases 2~3℃，efficiency of transmission ≥95%.

Achievement

(1) roof of the test qualified assessment indicators and application verification report.

Production conditions

Equipment foundation

Soild equipment foundation is the premise of stable production of high precision products. High-strength equipment foundation can effectively reduce ground deformation and surface subsidence,avoid equipment horizontal failure or bed distortion,so as to ensure the stability of production accuracy.

International first-class level special quenching production line for ball screw and linear guide.

Set preheating,quenching,tempering and cleaning four processes as a whole,automatic loading and unloading,through continuous feeding structure,completing the composite heat treatment process at one time,shortening the production cycle significantly,ensure timely completion of customer orders.

Precision grinding equipment

Precision thread grinding,guide grinding equipment and so on,customized by European technical standards,the accuracy of the equipment can be compared with Japanese and German products,can produce the highest P1 level ball screw and the linear guide rail above P level.

Quality detection

The ball screw laser dynamic detector,using the whole marble material.The main guide rail adopts balanced air floating structure,no contact and no friction,has great precision retention. Supporting testing equipment:including high precision projector,German ZEISS three coordinate measuring instrument and contourgraph,roughness,hardness,metallographic structure analysis and so on.

Mature R & D team

R & D team of more than 50 people,on the basis of absorbing the open technology and experience of Europe,Japan and so on,after years of technical precipitation,independent research and development break through a number of key technologies,having great customization development ability and work efficiency.