Product Description

Auto Parts Aluminum/Aluminium Alloy Plaster Model Low Pressure Die Casting Compressor Wheel Impeller for Centrifugal Compressor Pump

Aluminum alloy centrifugal fan impeller used for rail transit ventilation system, Fan impeller is finished by integral casting. And casting method of fan impeller is plaster low precessure casting, casting surface smoothness can meet Ra3.2μm.

The material of compressor impeller is aluminum A356. And all compressor impeller will do T6 heat treatment to imporve the mechanical properties of products. After T6 heat treatment mechanical properties can meet:

Tensile strength ≥280MPa
Yield strength ≥220MPa
Elongation ≥3.5%
Hardness ≥HB85

Product Photos   

The rotating speed of impeller is 5000RPM, the initial dynamic balancing accuracy ≤10g.
What are the advantages of integral casting instead of welding process:
* The overall consistency of the impeller is good
* The dynamic balance is good
* Production cost is lower

All impeller will be done X-Ray inspection and fluorescent penetration test in our factory, including CMM, tensile strength test and hardness test.



• Make low noise, light weigh, big air flow high stabiltiy and high efficiency.

• Reasonable structure, stronger wheel and the strong suction.
• Specification backward curved blades centrifugal fans, better blades design.


Production Process

Our Production Capacity

Item Name Annual output MAX weight & size Material Material Remarks
Lost wax investment 
vacuum casting
Aluminum alloy low pressure casting 500TON 480KG φ1200 ALUMINUM ALLOY A356,A357,C355,ZL105A,
Five axis 
CNC machining
5000EA 1000KG φ600 AL ALLOY, TI ALLOY, STAINLESS STEEL 7075,2618,6061,2A70,


1. We can finish mould design and mould machining, mould assembly in our factory to ensure plan of casting
2. We can finish all casting and machining in our factory to ensure production time
3. We can finish all inspection in our factory to ensure production quality

Our Certificates

1. Are you trading company or manufacturer ?
We are manufacturer with area of 16000 m^2 factories verified by Made-In-China, we have 70+ workers with professional experience.

2. Can I customize manufacturing products?
Yes, we can customize products based on your design and technical requirements. Please send your detailed requirements to us.

3. What is your Minimum Order Quantity and pricing?
The MOQ for each product is different, so it would be best to refer to the detail requirements of the product you are demanding or interested in. If you need further clarification, send me the product link and I will reply as soon as possible.

4. How can I get a quote?
We need to check the 2D drawings (PDF files) and 3D models(step/stp/igs/stl…) with details of: material, quantity, surface treatment to provide you the professional quotation. With sufficient information, we are able to provide quick quotation within 1 work day.

5. What is the production time?
CNC: 10~20 days.
3D printing: 2~7 days.
Molding: 3~6 weeks.
Mass production: 3~4 weeks.
Other production services: please contact with us.

6. How do you control the quality?
We will make samples before mass production with first article report. After sample approved, we will begin mass production, with quality control by X-Ray inspection, penetrate inspection, tensile testing machine, hardness tester, Ultrasonic, Spectrograph, etc., we control the quality on every process.

7. Which shipping methods do you use?
We offer sea, air, and land freight as well as express delivery. The specific options depend on the quantity of the order and the requirements from you.

Please contact us freely if you are interested in any kind of product, we will response to you within 12 hours!

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Die Casting Machine Type: Hot Chamber Die Casting Machine
Die Casting Method: Vacuum Die Casting
Application: Compressor
Machining: CNC Machining
Material: Aluminum
Surface Preparation: Electroplating
US$ 10/Piece
1 Piece(Min.Order)




cast aluminium

What are the latest technological advancements in cast aluminium production?

Technological advancements in cast aluminium production have been driven by the need for improved efficiency, quality, and sustainability. Here’s a detailed explanation:

1. Advanced Simulation and Modeling: The use of advanced simulation and modeling techniques has significantly enhanced the design and optimization of cast aluminium components. Computer-aided engineering (CAE) tools, such as finite element analysis (FEA) and computational fluid dynamics (CFD), allow for virtual testing and prediction of casting defects, solidification behavior, and flow patterns. These tools enable engineers to optimize designs, reduce trial-and-error iterations, and improve the overall casting process.

2. 3D Printing and Additive Manufacturing: Additive manufacturing, including 3D printing, is increasingly being explored as a complementary technology for cast aluminium production. 3D printing can be used to create complex sand molds and cores with intricate geometries, eliminating the need for traditional tooling. This approach offers design flexibility, reduces lead times, and enables the production of customized and low-volume cast aluminium parts.

3. Improved Mold Materials: The development of advanced mold materials has contributed to more efficient and higher-quality cast aluminium production. Innovative materials, such as ceramic-based coatings and refractory materials, offer improved thermal stability, reduced mold degradation, and enhanced surface finish. These advancements help minimize casting defects, increase mold lifespan, and improve overall productivity.

4. Automated Casting Processes: Automation and robotics are being increasingly integrated into cast aluminium production processes. Automated systems for mold handling, pouring, and post-casting operations enhance productivity, reduce labor costs, and improve consistency. Robotic systems can perform tasks such as mold spraying, mold manipulation, and part extraction, ensuring precision and reducing the risk of human error.

5. Advanced Melting and Casting Technologies: Newer melting and casting technologies have emerged to enhance the efficiency and quality of cast aluminium production. For instance, electromagnetic stirring systems can improve melt homogeneity and reduce impurities. Vacuum-assisted and low-pressure casting techniques help minimize gas porosity and improve casting integrity. These technologies contribute to better mechanical properties, reduced scrap rates, and enhanced process control.

6. Real-Time Monitoring and Control: The integration of real-time monitoring and control systems allows for better process visibility and optimization in cast aluminium production. Sensors and data analytics enable the collection and analysis of critical process parameters, such as temperature, pressure, and flow rate. This data can be used to detect anomalies, optimize process parameters, and ensure consistent quality throughout production.

7. Energy Efficiency and Sustainability: The focus on energy efficiency and sustainability in cast aluminium production has led to advancements in process optimization and resource utilization. Improved insulation materials, energy recovery systems, and optimized process parameters help reduce energy consumption and environmental impact. Recycling and reusing aluminium scrap and waste also contribute to the sustainability of cast aluminium production.

8. Alloy Development: Ongoing research and development efforts are focused on the creation of new aluminium alloys with improved properties and casting characteristics. These alloys aim to provide enhanced mechanical strength, corrosion resistance, and thermal properties while maintaining good castability. Alloy development enables the production of cast aluminium components tailored to specific applications and industry needs.

These technological advancements in cast aluminium production are continually evolving, driven by research, innovation, and the growing demand for high-performance and sustainable manufacturing solutions.

cast aluminium

How does cast aluminium perform in high-temperature applications?

Cast aluminium can perform well in high-temperature applications, but its performance is influenced by several factors. Here’s a detailed explanation:

Aluminium has a relatively low melting point compared to other metals, which can lead to concerns about its performance in high-temperature environments. However, cast aluminium can still be suitable for many high-temperature applications due to its unique properties:

  • High Thermal Conductivity:
  • Aluminium has excellent thermal conductivity, meaning it can efficiently transfer heat away from the high-temperature areas. This property allows cast aluminium to dissipate heat quickly, reducing the risk of overheating and maintaining dimensional stability.

  • Lightweight:
  • Cast aluminium is lightweight compared to many other metals. This characteristic is advantageous in high-temperature applications where weight reduction is desirable, as it can help improve energy efficiency and ease of handling.

  • Oxide Layer Formation:
  • Aluminium forms a natural oxide layer when exposed to air, which provides a degree of protection against corrosion and oxidation at high temperatures. This oxide layer acts as a barrier between the metal and the surrounding environment, helping to maintain the integrity of the cast aluminium part.

  • Alloy Selection:
  • The choice of aluminium alloy is critical in high-temperature applications. Different alloy compositions can offer enhanced heat resistance, improved mechanical properties at elevated temperatures, and better overall performance. For example, aluminium-silicon alloys, such as A356 or A413, exhibit good high-temperature strength and stability.

  • Heat Treatment:
  • Applying heat treatment processes to cast aluminium can further enhance its high-temperature performance. Heat treatment can refine the microstructure, improve mechanical properties, and increase the material’s resistance to thermal fatigue and creep.

  • Design Considerations:
  • Proper design considerations, such as incorporating appropriate wall thickness, heat sinks, or insulation, can help manage high temperatures effectively. By optimizing the design, cast aluminium parts can withstand and function reliably in demanding thermal conditions.

Despite its favorable properties, there are limitations to consider when using cast aluminium in high-temperature applications:

  • Aluminium has a lower melting point compared to other metals, so it may not be suitable for extremely high-temperature environments where materials with higher melting points, such as refractory metals or ceramics, are preferred.
  • Excessive exposure to high temperatures can cause gradual softening and deformation of cast aluminium parts, leading to a decrease in mechanical strength.
  • Thermal expansion and contraction of cast aluminium can affect dimensional stability, especially in applications with significant temperature fluctuations. Proper allowances and design considerations are necessary to accommodate these thermal changes.

Overall, cast aluminium can perform well in many high-temperature applications, thanks to its thermal conductivity, lightweight nature, oxide layer formation, and suitable alloy selection. By considering the specific requirements of the application and implementing appropriate design and material considerations, cast aluminium can provide reliable and cost-effective solutions for high-temperature environments.

cast aluminium

What are the advantages of using cast aluminium in manufacturing?

Using cast aluminium in manufacturing offers several advantages. Here’s a detailed explanation:

  • Lightweight:
  • Cast aluminium is lightweight compared to other metals, such as steel or iron. This property makes it an ideal choice for applications where weight reduction is crucial, such as in the automotive and aerospace industries. The use of cast aluminium components can contribute to improved fuel efficiency, increased payload capacity, and enhanced overall performance.

  • Strength-to-Weight Ratio:
  • Although cast aluminium is lightweight, it exhibits excellent strength-to-weight ratio. It provides sufficient structural strength and rigidity for many applications while keeping weight to a minimum. This property makes it suitable for applications requiring strength and durability, such as in the construction of machinery, vehicles, and structural components.

  • Corrosion Resistance:
  • Aluminium naturally forms a protective oxide layer on its surface, which provides inherent corrosion resistance. This oxide layer helps prevent rusting and corrosion, making cast aluminium components suitable for outdoor or corrosive environments. Additionally, aluminium can be further enhanced with coatings or finishes to improve its corrosion resistance and prolong its lifespan.

  • Malleability and Versatility:
  • Cast aluminium is highly malleable, allowing it to be easily shaped and formed into complex designs and intricate details. This versatility opens up a wide range of possibilities for manufacturing intricate components, decorative elements, and custom designs. Cast aluminium can be used to create aesthetically pleasing and functional products across various industries.

  • Excellent Thermal Conductivity:
  • Aluminium has excellent thermal conductivity, meaning it efficiently transfers heat. This property makes cast aluminium components suitable for applications where heat dissipation is critical, such as in heat sinks, cooling systems, or electronic enclosures. The high thermal conductivity of aluminium helps dissipate heat and maintain optimal operating temperatures.

  • Recyclability:
  • Aluminium is highly recyclable without losing its inherent properties. Recycling cast aluminium requires significantly less energy compared to primary aluminium production. The recyclability of cast aluminium makes it a sustainable choice, reducing the demand for primary aluminium and minimizing environmental impact.

  • Cost-Effectiveness:
  • Cast aluminium manufacturing processes are often cost-effective compared to other metal manufacturing methods. The relatively low melting point of aluminium reduces energy consumption during casting, and the lightweight nature of aluminium reduces transportation costs. Additionally, the recyclability of aluminium contributes to cost savings in the long run.

These advantages make cast aluminium a popular choice in various industries, including automotive, aerospace, construction, electronics, and consumer goods. However, it is important to consider specific application requirements, such as load-bearing capacity, temperature resistance, and surface finish, to determine the suitability of cast aluminium for a particular manufacturing project.

China manufacturer Auto Parts Aluminum/Aluminium Alloy Plaster Model Low Pressure Die Casting Compressor Wheel Impeller for Centrifugal Compressor Pump  China manufacturer Auto Parts Aluminum/Aluminium Alloy Plaster Model Low Pressure Die Casting Compressor Wheel Impeller for Centrifugal Compressor Pump
editor by Dream 2024-04-29