1. Company Profile:
 Specializing in the manufacturing of lost wax investment castings and finished products in carbon steel and alloy steel, our company is a world class manufacturer and supplier of investment castings in China. It consists of 2 major facilities, both steel casting foundry and CNC machining factory which enable us to supply both precision castings and finished products with an annual production capacity of over 20,000 tons, and the products are mainly exported to Europe, America, Japan and other destinations around the world. The headquarters of our company is located in the famous industrial town Yinzhou, Ningbo in China. It is very convenient to be reached with an advantageous geographic position; it is located about 30 kilometers away from the Bei-lun Port which is the second biggest port in China, and about 15 kilometers away from the Lishe International Airport. The principal production base of the cast steel foundry is located in Qiucun Town, Fenghua, Ningbo, a distance of 15 kilometers away from the Headquarters. Our company was established in 1992, it covers a total area of 40,500 square meters and now has more than 500 employees, including 10 engineers and 60 technicians. The company owns a brand-new foundry, which covers an area of more than 30,000 square meters. Our products cover a wide range of industries including train; railway, automobile; truck, construction machinery, mining machinery, forklift, agricultural machinery, shipbuilding, petroleum machinery, construction, valve and pumps, electric machine ,hardware, power equipment and so on. We are capable to produce products according to customers' drawings or samples, we focus on both carbon steel and alloy steel. Up to today, more than 100 raw materials and 5,000 kinds of different products have been developed and produced by us. We are familiar with the various industrial standards, such as Chinese GB, American ASTM, AISI , German DIN, French NF, Japanese JIS, British BS, Australian AS and Association of American Railroads (AAR ) and other industrial standards. |
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2. History:
Since 1992
1992 | Ningbo Yinzhou Longxing Machinery Manufacturing Factory was established. Mainly engaged in machining. |
1999 | Renovation investment casting production lines in Longxing, production of precision casting, production capacity of 5000 tons. |
2001 | Obtained ISO9001:2000 certificate. |
2003 | Products began to export. |
2005 | Ningbo Fenghua Huawei investment casting  co.,ltd was established. |
2007 | Cooperating with Bombardier, first the OEM railway customer abroad. |
2008 |
All casting production line moved to Huawei, production capacity of 15000 tons. Cooperating with Hyundai motor company in North America, the first OEM automobile customer abroad. |
2009 | Ningbo Qianhao metal product  co.,ltd was established. Mainly engaged in machining and import & export business. |
2011 | Obtained TS16949:2009&ISO14001:2004 certificate. |
2012 | Cooperating with Doosan in Korea, first the OEM construction machinery customer abroad. |
2013 | Huawei expanded production capacity to 20000 tons. |
2014 | Establishing ERP production management system, implementation of 6S management. |
2015 | Building a fully automated wax and shell making process flow line in Huawei. |
3. Overview of Factory---Huawei Investment Casting
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4. Overview of Factory---Qianhao Machining (predecessor is Longxing machinery )
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5. Our Mission:
Create the Best Value for Customers,Contribute for Equipment Manufacturing in the World.
6. Our Values:
Moving with the Times
Pioneering and Innovation
Harmony and Win-Win
Striving for Excellence
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7. Human Resources:
Working Style: Sincere pragmatic , Â Persistent effort , Â Teamwork , Â Struggle&Transcend
Employee Image: Elegant style, Â Polite and courteous, Â Warmly and humble, Â Be neither Arrogance nor Inferiority, Â Preciseness and Professional.
Human resources | |
Casting Engineers | 3 |
Material Engineers | 1 |
Heat Treatment Engineers1 | 1 |
Machining Engineers12 | 5 |
Professional Technician | 12 |
QA | 28 |
Production Managers | 55 |
Sales &Customer Service Staffs18 | 18 |
Direct Labor | 390 |
Total :513 |
8. Annual Turnover:
Expected Target : Up to 2020, annual turnover exceeds 60 million dollars
     Annual turnover(Unit: Million Dollars) | |
2005 | $ 7.4m |
2006 | $ 9.0m |
2007 | $ 12.6m |
2008 | $ 16.0m |
2009 | $ 10.7m |
2010 | $ 15.5m |
2011 | $ 18.4m |
2012 | $ 17.6m |
2013 | $ 26.9m |
2014 | $ 32.6m |
2015Â | $ 34.1m |
2016 | $ 36.6m |
9. Product Descripition:
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Description | Investment casting |
Material | Carbon steel, alloy steel, stainless steel |
Process | Lost wax casting + cnc machining |
Casting dimension tolerance | CT7 |
Casting surface roughness | Ra 12.5um |
Casting weight range | 0.1-90kg |
Size | Max linear size: 1200mm, Max diameter size: 600mm |
Machining Precision | Positioning accuracy 0.008mm, Rep. position. accuracy 0.006mm |
Machining surface roughness | Ra0.8~6.3um |
Max Machining Travel Of Spindle | 1900mmx850mmx700mm |
Max Machining Turning Diameter | 830mm |
Material standard | GB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR....... |
Surface treatment | KTL(E-coating), Zinc plating, Mirror Polishing, Sand Blasting, Acid pickling,  black oxide, Painting, Hot galvanizing,Powder coating, Nickel plating |
Service available | OEM &Â ODMÂ |
Quality control | 0 defects,100% inspection before packing  |
Application |
Train & railway, automobile& truck, construction machinery, forklift, agricultural machinery, shipbuilding, petroleum machinery, construction, valve and pumps, electric machine, hardware, power equipment and so on. |
10. Product Profile:
1. Material percentage |
alloy steel:45% Â Â Â Â Â carbon steel:35% stainless steel:10% iron:10% |
2. Casting weight percentage |
0.1-5kg:40% 5-20kg:30% 20-40kg:20% above 40kg:10% |
3. Industry percentage |
Components for train & railway: 25% Components for automobile & truck: 30% Components for construction machinery & forklift: 25% Components for agricultural machinery:10% Other machinery components:10% |
4. Globa market share |
United States:30% Europe:35% Japan& Korea:15% Domestic market:15% Other:15% |
5. Production capacity |
Production Capacity: 25,000 tons / year The Current Production Output: 18,000 tons /Â year Production Saturation Percentage:72% |
11. Manufacturing  Process:
Process design⇒ Tooling making ⇒ Wax injection ⇒Wax pattern assembly⇒ Mold preheat ⇒ Wax removal ⇒Stuccoing ⇒Dipping Casting⇒  Mold shake out  ⇒Work piece cut-off ⇒ Grinding ⇒ Pack& transport ⇒ Final inspection  ⇒Machining ⇒ Heat treatment
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12. Major Machining Equipment List:
Machining Capabilities | |
Three-Axis turning centre: 1 | Four-Axis Vertical Machine Center: 21 |
Four-Axis Horizontal Machine Center: 1 | CNC Milling Machine: 6 |
Vertical Lifting Milling Machine:4Â | Universal Milling Machine: 2 |
Plane Milling Machine: 2 | Fase Milling Machine: 3 |
CNC Lathe Machine: 27 | Oblique Guide CNC Lathe Machine: 2 |
Engine Lathe Machine: 6 | Special Lathe: 5 |
Radial Drilling Machine: 4 | Porous Drilling Machine: 1 |
CNC Drilling Machine: 5 | Cylindrical Drilling Machine: 11 |
13. Key Testing Equipments:
1.Direct-Reading Spectrometer | 12.3D Scanner |
2.Non-contact infrared thermometer | 13.Coordinate Measuring Machine |
3.Metallographic Microscope | 14.Surface Roughness Tester |
4.Tension Tester | 15.Ultrasonic Testing Machine(HS600) |
5.Low Temperature Chamber For Impact Specimen | 16.Coating thickness gauge |
6.Impact Test Machine | 17.Portable Magnetic Particle Tester |
7.Magnetic Particle Testing Machine | 18.Portable Hardness Tester |
8.Ultrasonic Testing Machine | 19.Hardness Test  Machine |
9.X-ray tester | 20.Rockwell Hardness Test Machine |
10.Surface Roughness Tester | 21.Contact infrared thermometer |
11.Video Measurement Machine | Â |
14. We provide various test facilities as mentioned under:
1. Chemical analysis |
2. Tensile strength |
3. Elongation rate |
4. Shrinkage rate |
5. Impact test |
6. Harness test |
7. Metallography |
8. Non-destructive tests(including dye-penetrant, ultrasonic, magnetic particle and radiography) |
9. Surface roughness test |
10. CMM test |
11. 3D scanner |
15. APQP and Inspection Report:
APQP-Casting Â
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APQP-MachiningÂ
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Inspection Report-Casting
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Inspection Report-MachiningÂ
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Other Quality DocumentÂ
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16. Core Competition Advantages:
Advantages 1:High Engineering and Technical Capability
- An industry's top engineering technical team , with special skills and rich experience in product design, casting ,heat treating and machining fields.
- Based on customer needs, in the beginning of product development, offer a solution, casting design, by structural component designed to casting parts, optimize the product design, then reduce costs and creating the best value for the customers.
- Special Techniques Enable LONGXING to Be Competent with Those Difficulties at Wax Injection & Shell Making Procedures When Manufacturing the Parts with Inner-Sophisticated-Structures.
- Use casting simulation analysis system software 100%  to ensure the success of the one-time trial sample.
- Our testing equipments are not only leading in the industry, and also has a very complete range, they are hardware guarantee to ensure us continue to provide high-quality products for our customers.
- Carrying out ISO9001 and TS16949 quality management system, full implementation of 6S and Kanban site management, which is software guarantee of the quality.
- IQC, IPQC and FQC quality management team to control the whole production process, effectively prevent the generation of  unqualified product.
- Our casting' PPM ≤1000 Machining ' PPM ≤600.
- We sticks to the quality management philosophy that "Starting from the customer needs and ending with their satisfaction, focusing on customer demands and exceeding their expectations".
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LONGXING can provide customers with good service, our staff have abundant commercial experience<
Brief Introduction & Working Principle
when compressed air enter into the vacuum pump, simultaneously under the push of air cylinder, the empty door of hopper will be closed and the vacuum will be formed in the hopper. The vacuum feeding machine forms air stream under vacuum state. Under the action of this air steam the material which is conveyed will be transported to vacuum hopper through hose. Certain time later (feeding time, adjustable), the compressed air is closed, the pneumatic vacuum pump is unable to produce vacuum, simultaneously under the push of air cylinder the emptying door of hopper will be opened and the vacuum will be disappeared in the vacuum feeder. The material will be fed into receiving equipment from the emptying door (for example tablet press, packing machine and so on), simultaneously, compressed air that stores up in air packet's blowback the filter, and the filter cleans by itself. Certain time late (discharging time, adjustable), the compressed air starts again. Move in cycles, the material is fed into the equipment continuously.
The machine is well designed and produced, consisted of vacuum pump (non-oil & non-water), stainless-steel-made product sucking mouth, feeding tube, cloth filter (or 316 stainless steel filter), vibration cleaner (or compressed air blower), vacuum product hopper and product level control system. There are some different between when machine combined with packaging machine, pellet pressing machine and Mixing Machine respectively.
Feature
* With high standard(GMP standard,sanitary grade and food grade)
* Made of nontoxic and corrosion resistant materials
* Materials are not adhering to the inner surface of conveyor
* Intelligent control and high automation
* Modular structure,Easy to Clean and dismantle.
* Low noise and non-vibration
* More flexible to connect with packaging machine,mixers,crusher,mills,etc.
* Lower price compared with screw conveyors
* Good choice for powder,small pellet and fragile materials
Our machines have an automatic 12 months guarantee against faulty material and workmanship valid from the date of dispatch in China or date of arrival at foreign border.
If any problem of the machine under instruction within one year,we are responsible for replacement incuding delivery fee and maintenance.
Lifelong service is offered with cost charge after one year.
Vacuum Conveyor ,Vacuum Transfer System,Vacuum Transfer,Pneumatic Vacuum Conveyor
XINXIANG CHENWEI MACHINERY CO.,LTD , https://www.sieves.nl