Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting 1. Company Profile: 2. History: Since 1992 3. Overview


Basic Info.
Model NO. drag balance bracket of high-speed train
Surface Roughness Ra12.5
Machining Tolerance +/-0.01mm
Standard ASTM. AISI. DIN. BS. JIS. NF. as. AAR
Certification ISO 9001:2008, Ts16949/ISO14001/TUV
Inspection Mt/Ut/Rt/100% Visual+100% Gage/CMM
Dimensions OEM Customized/Customer′s Drawing
Machining Facility 20 Machining Centers+50 Nc Machines
Heat Treatment Quench and Temper by 2 Set Mesh Belt Furnaces
Transport Package Plywood Case or Iron Pallet Packing
Specification drag balance bracket of high-speed train
Trademark LX
Origin Ningbo, Zhejiang, China
Production Capacity 20000tons/Year
Product Description

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting
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.

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

2. History:
Since 1992

1992Ningbo Yinzhou Longxing Machinery Manufacturing Factory was established. Mainly engaged in machining.
1999Renovation investment casting production lines in Longxing, production of precision casting, production capacity of 5000 tons.
2001Obtained ISO9001:2000 certificate.
2003Products began to export.
2005Ningbo Fenghua Huawei investment casting co.,ltd was established.
2007Cooperating with Bombardier, first the OEM railway customer abroad.
2008All 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.
2009Ningbo Qianhao metal product co.,ltd was established. Mainly engaged in machining and import & export business.
2011Obtained TS16949:2009&ISO14001:2004 certificate.
2012Cooperating with Doosan in Korea, first the OEM construction machinery customer abroad.
2013Huawei expanded production capacity to 20000 tons.
2014Establishing ERP production management system, implementation of 6S management.
2015Building a fully automated wax and shell making process flow line in Huawei.

3. Overview of Factory---Huawei Investment Casting

  • Established in 2005, plant area covers more than 30,000 square meters, with more than 350 employees.
  • Using advanced lost wax investment casting process, equipped with several modern types of energy-saving & environmentally-friendly production lines including a fully automated wax and shell making process flow line, as well as two mesh belt furnace heat treatment production lines.
  • Annual production capacity is 20,000 tons.

4. Overview of Factory---Qianhao Machining (predecessor is Longxing machinery )

  • Established in 1992,plant area covers 10,000 square meters, with more than 160 employees.
  • Equipped with complete advanced CNC machining equipments, including more than 20 vertical and horizontal centers, and more than 30 CNC machines and 50 other machining equipments.
  • The machining facility is fully independent from the casting foundry and has an independent management team and tailored business model to suit. In addition to the casting, forging and machining, it also has the facility to machine various profiles.

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

7. Human Resources:
Working Style: Sincere pragmatic , Persistent effort , Teamwork , Struggle&Transcend
Employee Image: Elegant style, Polite and courteous, Warmly and humble, Be neither Arrogance nor Inferiority, Preciseness and Professional.

Human resources
Casting Engineers3
Material Engineers1
Heat Treatment Engineers11
Machining Engineers125
Professional Technician12
Production Managers55
Sales &Customer Service Staffs1818
Direct Labor390
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
2015 $ 34.1m
2016$ 36.6m

9. Product Descripition:

DescriptionInvestment casting
MaterialCarbon steel, alloy steel, stainless steel
ProcessLost wax casting + cnc machining
Casting dimension toleranceCT7
Casting surface roughnessRa 12.5um
Casting weight range0.1-90kg
SizeMax linear size: 1200mm, Max diameter size: 600mm
Machining PrecisionPositioning accuracy 0.008mm, Rep. position. accuracy 0.006mm
Machining surface roughnessRa0.8~6.3um
Max Machining Travel Of Spindle1900mmx850mmx700mm
Max Machining Turning Diameter830mm
Material standardGB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR.......
Surface treatmentKTL(E-coating), Zinc plating, Mirror Polishing, Sand Blasting, Acid pickling, black oxide, Painting, Hot galvanizing,Powder coating, Nickel plating
Service availableOEM & ODM
Quality control0 defects,100% inspection before packing


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. Marterial percentage

alloy steel:45%
carbon steel:35%
stainless steel:10%

2. Casting weight percentage

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 compponents:10%

4. Globa market share

United States:30%
Japan& Korea:15%
Domestic market:15%

5. Production capacity

Production Capacity: 25,000 tons / year
The Current Production Output: 18,000 tons / 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

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

Precision Steel Casting+Metal Casting+Lost Wax Investment Casting

12. Major Machining Equipment List:
Machining Capabilities
Three-Axis turning centre: 1Four-Axis Vertical Machine Center: 21
Four-Axis Horizontal Machine Center: 1CNC Milling Machine: 6
Vertical Lifting Milling Machine:4 Universal Milling Machine: 2
Plane Milling Machine: 2Fase Milling Machine: 3
CNC Lathe Machine: 27Oblique Guide CNC Lathe Machine: 2
Engine Lathe Machine: 6Special Lathe: 5
Radial Drilling Machine: 4Porous Drilling Machine: 1
CNC Drilling Machine: 5Cylindrical Drilling Machine: 11

13. Key Testing Equipments:
1.Direct-Reading Spectrometer12.3D Scanner
2.Non-contact infrared thermometer13.Coordinate Measuring Machine
3.Metallographic Microscope14.Surface Roughness Tester
4.Tension Tester15.Ultrasonic Testing Machine(HS600)
5.Low Temperature Chamber For Impact Specimen16.Coating thickness gauge
6.Impact Test Machine17.Portable Magnetic Particle Tester
7.Magnetic Particle Testing Machine18.Portable Hardness Tester
8.Ultrasonic Testing Machine19.Hardness Test Machine
9.X-ray tester20.Rockwell Hardness Test Machine
10.Surface Roughness Tester21.Contact infrared thermometer
11.Video Measurement Machine

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:
  1. Process Flow Diagrams
  2. Control Plan
  3. Process FMEA
  4. Casting Process Instruction
  5. Solidification Simulation Report
  6. Heat Treatment Work Instruction
  7. Casting Final Quality Control WI
  8. Visual Inspection VI For Surface Irregularities
  1. Process Flow Diagrams
  2. Control Plan
  3. Process FMEA
  4. Machining Process Instruction
  5. Gauge List And Validation Plan
  6. Final Quality Control WI
Inspection Report-Casting
  1. Material Test Report(A)
  2. Material Test Report(B)
  3. Magnetic Particle Inspection Report
  4. Ultrasonic Examination Report
  5. Radiographic Test Report
  6. Destructive Test Report
  7. Coating Test Report
  8. Visual Inspection Report
  9. Casting Inspection Report
Inspection Report-Machining
  1. Dimensional Inspection Report(A)
  2. Dimensional Inspection Report(B)
  3. CMM Report
Other Quality Document
  • PPAP Checklist
  • Measurement System Analysis Study
  • Process Capability Studies
  • Corrective Action Report(8D)
  • Packaging Instruction

16. Core Competition Advantages:
Advantages 1:High Engineering and Technical Capability
  1. An industry's top engineering technical team , with special skills and rich experience in product design, casting ,heat treating and machining fields.
  2. 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.
  3. Special Techniques Enable LONGXING to Be Competent with Those Difficulties at Wax Injection & Shell Making Procedures When Manufacturing the Parts with Inner-Sophisticated-Structures.
  4. Use casting simulation analysis system software 100% to ensure the success of the one-time trial sample.
Advantages 2: Advanced Inspection Equipment & Strong Quality Assurance Capacity
  1. 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.
  2. Carrying out ISO9001 and TS16949 quality management system, full implementation of 6S and Kanban site management, which is software guarantee of the quality.
  3. IQC, IPQC and FQC quality management team to control the whole production process, effectively prevent the generation of unqualified product.
  4. Our casting' PPM ≤1000 Machining ' PPM ≤600.
  5. 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".
Advantages3: Good Customer Service
  1. LONGXING can provide customers with good service, our staff have abundant commercial experience, good language ability, and rich foundry or mechanical background. We are committed to providing customers with accurate, careful and speedy service.
  2. Quotation, Quality Complaints and Email Response get fast effective feedback within 48 hours.
  3. We have carried out an information-based management which is driven by an ERP and PMC system, to ensure on time delivery rate: 95%
Advantages 4: Powerful Deep-processing Ability
It is the best core competitive advantage different with others in the industry
  1. Machining capability as the same as casting, the machining facility is fully independent from the casting foundry and has an independent management team and tailored business model to suit.
  2. LONGXING has completed a transformation and upgraded to a deep-processing manufacturer with expanded production capabilities and is committed to be equipped with other capabilities except casting, we focus on developing terminal products for top-end markets.
  3. High technical content in machining, and casting with sheet metal, welding, assembling, LONGXING has the most competitive advantage, it is the best choice for you.

17. Contact Information:

Our Contact