"Come on, you must come!" Hearing Yunfei''s words, Liu Cheng answered without hesitation.


    This is the equipment, not to mention the large castings used to process CNC milling or machining center, even the basic large castings used to process ordinary milling windows. The efficiency is much better than that processed by the company''s technicians.


    The improvement of machining efficiency will inevitably reduce the production cost of machine tools.


    The lower the cost, the better the quality of the equipment, in the market environment, can have a stronger competitiveness.


    "What is the machining accuracy of the CNC gantry milling you designed for various large castings? What is the annual production capacity? " Since you want to buy, you should first understand the performance of these products. After all, this is related to many things.


    At a time when the sales of their products are not very good, if they buy a pile of equipment that can only be placed there as decoration, it must not be.


    Although the state pays, it can''t be too extravagant, can it?


    "Our gantry milling is within the working range of three meters, and the designed processing flatness is within 0.05mm, straightness is 0.07mm, and repeated positioning accuracy is 0.05mm. However, according to the current processing level and technical conditions, the flatness of the final finished product can only reach 0.08mm, straightness is 0.1mm, and repeated positioning accuracy is 0.06 to 0.07mm..." Yun Fei was a little embarrassed, The actual machining accuracy of such medium-sized gantry milling produced by some foreign companies producing heavy precision equipment is higher than that designed by them.


    Unlike small equipment, heavy equipment can achieve high accuracy.


    The accuracy index and standard of small equipment are generally in the order of 0.01mm.


    The precision index and technical standard of heavy equipment are in the order of 0.1mm.


    If the CNC gantry milling designed and developed by Jiuyi heavy industry can reach the accuracy he said, it can be among the categories of precision equipment.


    Of course, these parameters mentioned by Yunfei are the theoretical design performance and the performance that can be achieved by the theory. In the end, the accuracy that can be achieved by the delivered equipment will definitely be different from the data mentioned by Yunfei.


    Of course, manufacturers using these equipment will be prepared.


    Even the best foreign manufacturers can not achieve the accuracy of theoretical design.


    The machining accuracy of equipment involves many aspects, such as the performance of materials, the range of machining accuracy, the realization of assembly technology, the performance of control system, even the temperature change around the equipment, ground flatness and so on.


    It is really because of this that CNC windows can measure the industrial level of a country.


    "Can such high accuracy be achieved?" Zhu Feng, who has been immersed in the mechanical technology industry for most of his life, expressed some disbelief.


    He believes that there is a lot of water in Yunfei''s words.


    "Of course, this is only the data inferred from our experience in producing other equipment. What kind of accuracy can we achieve in the end? We must wait for the completion of our research work and continue to improve, so as to meet the accuracy requirements of our design within five years..." Sun Lin was very dissatisfied with Zhu Feng''s doubt.


    These data can be inferred from the field experimental data after half a year of design by the most excellent engineering and technical personnel of the whole North heavy industry and Jiuyi heavy industry, using the most mature technologies of both sides!


    The capital can''t produce a machine by itself, but it''s also suspected that others can''t produce it!


    "Even if it is worse than the actual accuracy, this accuracy range can meet the finishing requirements of most domestic products. This precision is almost the same as that of the parts processed by the best ordinary precision equipment we use now... "As the earliest ally of Jiuyi heavy industry, Hal heavy industry is highly praised by market users.


    If this is not the case, it is estimated that the centralized procurement of the state this time will not have the second aircraft in their capital.


    "In addition to the higher price, the accuracy of those foreign equipment is not very good. In China, we buy other people''s scrapped second mobile phones and garbage machine tools with poor accuracy. Why should we suffer that foreign influence?" Zhao Mingzhang''s words immediately made him interested in watching the experimental CNC gantry milling of 91 heavy industry. Under the control of the program, the leaders of national ministries and commissions who automatically ran in the gap between the guide rail and the gantry column suddenly became ugly.


    These leaders have always advocated the purchase of imported equipment from abroad.


    In their eyes, imported CNC equipment is the real high-precision CNC equipment.


    "Let''s go and have a look at the scene where we study the four-axis Machining Center..." the CNC gantry milling here is almost the same. Whether to place an order or not, these big guys can''t make up their mind for a while. Anyway, they not only have to discuss internally, but also have to go through the above approval to determine the purchase quantity.


    After all, few people here are willing to spend all the procurement quotas of large equipment on Jiuyi heavy industry like the capital No. 2 Machinery Co., Ltd.


    Finally, even if Yun Fei doesn''t come out, Yang Qing will lobby his direct leaders for the procurement of these heavy equipment. Only the more the gantry processing center of 91 heavy industry sells, can their cooperative manufacturers responsible for the production of most mechanical parts get more profits.


    He cares more about it than anyone else.


    Of course, the business leaders who have received the national heavy equipment purchase order quota come to 91 heavy industry for on-the-spot investigation, which is also the function of his up and down operation.


    It has nothing to do with Yunfei of 91 heavy industry.


    Yunfei just invited the leaders of various ministries and commissions to visit the factory. Unexpectedly, at the end of the trip, there were new changes above. In order to expand the independent management rights of subordinate state-owned units such as the Ministry of industry and the Ministry of machinery, this procurement is only guided by the state and purchased in groups. In principle, each enterprise makes its own choice, and the leaders of national ministries and commissions are only responsible for collective price negotiation.


    "This is the four axis machining center that we have developed to imitate German ep6 for vertical and horizontal conversion of spindle. We have adopted most of the German design ideas. Most of the key technologies in it can''t be copied at all and have to study by ourselves..." strictly speaking, the research area of the four axis machining center, When others heard Zhao Mingzhang say this, they can''t help but make a statement, especially the companies such as the capital No. 1 machine and the Northeast No. 1 machine that also want to get the technology they urgently need from Jiuyi heavy industry have made it clear to Yunfei that they urgently want to order the four-axis processing center of Jiuyi heavy industry


    ....................................


    The on-site visit was actually an on-site ordering meeting. Not only the leaders of various parts of the central government came, but also some factory directors and engineers who can be the masters of various heavy machinery and equipment companies came.


    In terms of the price of CNC gantry milling, Yunfei didn''t ask for a random price like those heavy CNC cars, but only offered a price of 3.8 million per set!


    Just for this item, we received an intentional order for 132 sets on the site.


    This excited Yang Qing, director of the North heavy industry factory on one side.


    Although the profits of this CNC gantry milling are dominated by 91 heavy industry, northern heavy industry, which produces mechanical parts, has also been awarded more than 200 million contracts!


    This is the largest order that North heavy industry has received under the market economy system so far.


    All this was brought to him by Jiuyi heavy industry, a private enterprise that he couldn''t see at all.


    Jiuyi heavy industry has not yet successfully developed the four-axis machining center imitating Germany''s Dirk ep6. Without physical objects and reliable technical means, it has also received orders for more than 40 sets, but the delivery date is three years later!