CNC S36 FOR CRANK SHAFT PROCESSING

Technique solution

    Customer: ****

    Supplier:  Ningbo Gongtie Precision Machinery Co.,LTD

    Data No.: ********

    Company Presentation:

   Ningbo GongTie Precision Machinery Co.,LTD is a national high-tech enterprise, which integrates precise CNC lathes and industrial robots as a whole, specializes in precise CNC lathes, automatic integral-single CNC lathes, automatic production line. Bases on medium-small precise CNC lathes, sets up the machine automation as enterprise’ strategical core, targets to satisfy the market and the customer as the technique innovation’s motivation, scientifically and reasonably combines the precise CNC lathes with the machine unmanned together, sustainably improves the machine’s stability and practicability, becomes the domestic leading professional manufacturer and service supplier for precise CNC lathes and machines’ automation.

   Established in 2006, with more than 100 employees, already got various of invention patents. GongTie is able to offer a complete engineering package from concept , design to manufacturing.

  The company’s diversity machine series is widely used in automotive parts, valve, bearing, electric application , instrument, sanitary and more other industries, can realize various processing technology like drilling, turning, milling, boring, tapping, grooving and so on. We have set up sales office at several place and perfect sales representative network. And we completely follow the ISO9000:2000 quality management system and security management system on the development and manufacturing, to guarantee the quality and safety during the customer’s application. In addition, we have built up a perfect after-sales service system, can in-time make feasible reaction for the customer’s any inquiries or problems.

    The CNC machine from GongTie has below advantages:

   -- broaden application range

   -- high precise, reliable features, fine finish and stable processing.

   -- save labor costs 

   -- competitive price with high quality assurance

   The company mission:

  l  Continuous innovation

  l  Quality priority

  l  Customer focused

  l  Solution driven

    With our accurate, reliable products and perfect service system, we have won the trust of many users, and gradually built up a good brand impression in the CNC lathes automation industry.

SOLUTION ：

  1. Products processing solution(refer to drawing 026 71 440 with logo of 6976)

     1)   customer: ****

       2)   product:  CRANKSHAFT；    

     3） material: SPHEROIDAL GRAPHITE IRON;   

          4)   the product profile

    5) machining accuracy: completely follow up the customer’s drawing;

  6) Work tool and fixture: precision customized outside Chuck

     7) The technique remarks:

7.1) the program will set up the tools life-time management (customer pre-set up the q’ty of the machining products, when reach it, automatically warning, for reducing the products scraps and the tools damage.)

7.2) build up the blowing-air device on the chuck

7.3) with the spindle positioning

7.4) with the tray positioning

    8) During the designing of the fixture, soft jaws should keep away from the tools, so we choose the CNC lathes with T-slot blade row for reducing the machining cycle time.

     ( optional: can choose the V-8 servo turret if the customer request)

    9) GONGTIE company will do the best to provide the technique guidance for CNC lathes and related suggestion of the products processing technology.

the workpiece clamping & turning sketch for the first process
Customized 6 inch pull lock chuck in the outside clamping way
process	tool	speed	Feed	Machining time(S)
Shoulder, OD, end face  (rough turning)	OD tool	3300	F0.07	≈18s	1s
Finish turning OD	OD tool	4200	F0.08	≈9s	0.5s
Drilling hole	Center drill	3000	0.06	≈5s	1s
Tapping		2000	0.06	≈2s	1s
Turning time		≈37.5s
Loading&unloading+blowing+positioning		≈13s
Total turning time		≈50.5s

         10) Proposal CNC machine：

          Lathe: Precise linear guide-way CNC lathe with slant base body in T-slot blade row _S350C

          Gantry type loading system: auto-loader in tray_7C

             11) CNC lathe with auto-loader S350C-7C sketch:

                    11.1) internal structure:

            11.2> RIGID BASE in 45 degree slant 

       11.3) outside profile:

      2. Parameters, configuration and price:

          1) parameters:

      2) Configuration and price

    3. After-sales service 

     3.1) before the delivery, inviting customer or the third party for the on-site inspection, carrying out the test and try-run for the CNC lathe and gantry loader face to face.

    3.2) providing the free-charge training in our factory

   3.3) after delivery, according to the problem feedback from customer by telephone or video, make the reaction and provide the feasible solution within 24H.

  3.4) In maintenance guarantee period (one year), if the damage is not caused by operators, we offer free components and feasible solution, beyond the period, we offer relevant services with paid components. 

       4. Attachments

    5. Lead time: 45 working days after signing contract

    6. Total price:   

                    Price： *****SD /SET     

      7. Period of validity: 30days

          8. Price base: EXWORKS

      9. Payment term: 30% pre-pay, 70% before delivery

    10. Price with the sea packaging.