Why Choose Welle As Casting  Manufacturer

Welle stands out with a proven track record in metal casting, backed by years of industry expertise. Our seasoned team navigates the complexities of the sector, ensuring your projects benefit from a wealth of experience. Trust Welle for a partner deeply rooted in the nuances of metal casting.
  • Profound expertise in diverse casting processes.
  • Rigorous quality control processes and comprehensive quality documentation.
  • Internal mold production for swift and precise sample feedback.
  • Well-established surface treatment methods.
  • Robust supply chain for heat treatment, ensuring optimal material properties.
  • Collaboration with third-party testing organizations for material composition verification.
  • Customized packaging solutions to meet specific requirements.
  • Adherence to committed timelines.
  • Rapid identification and resolution of customer complaints.
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Types of Welle Casting Technologies

Investment Casting

Precision in Detail: From tooling design and manufacturing to casting, heat treatment, secondary machining, and surface treatment, our capabilities encompass the full spectrum.
Versatility: Ideal for complex geometries and intricate designs, providing a high degree of design freedom.
Material Diversity: Meeting stringent standards (ASTM, SAE, AISI, ACI, DIN, EN, ISO, GB), producing high precision and geometrically complex castings weighing from 0.01kg to 45kg. and measuring up to 600mm in diameter or length.

3D Printing Integration: Our advanced capabilities include 3D printing for rapid prototyping and intricate design alterations.

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Die Casting

High-Speed Production: Employing Hot Chamber & Cold Chamber processes, we ensure versatility and minimize machine corrosion.Welle’s die casting ensures rapid and cost-effective production.

Tight Tolerances: Our typical tolerance accuracy ranges from ±0.0762 mm to ±0.127 mm, depending on customer specifications.

Ideal for Mass Production: Suited for large volumes and complex metal parts, making it an efficient choice for various industries.

Alloys Expertise: Proficient in Aluminum 46100, ADC12, A383, Al-Si11Cu3, 46500, A380, Al-Si8Cu3, and Zinc Alloys including Zamak 2, 3, 4, 5, and 7.

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Vacuum Casting

Prototyping Excellence: Welle specializes in vacuum casting for rapid prototyping of high-quality superalloyed components.
Material Simulation: Welle excels in pouring Nickel base, Cobalt base, and Iron base alloys, with a maximum pouring weight of 180 kg in a vacuum.
Small Batch Production: Suitable for small-scale production with the precision of larger-scale methods.
NDT (Non Destructive Testing) Inspections:Conduct non-destructive tests, including Fluorescent Penetrant Inspection (FPI), X-rays, dimensional checks, and final visual inspection, certifying full conformity.
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Sand Casting

Cost-Effective Solution: Welle’s sand casting offers a cost-effective method for producing large metal components.
Versatility in Materials: From ductile iron to gray iron and compacted graphite iron (CGI), Welle meets diverse material specifications.
Adaptability:We operate green sand and resin sand casting production lines, which ideal for both simple and complex shapes,making it a versatile choice for different applications.
Applications:Welle’s sand casting prowess manifests in diverse end markets, crafting products such as engine blocks, cylinder heads, frames, brackets, and gearbox parts for construction and agriculture equipment.
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Material Types of Welle Casting Components

Explore the unparalleled diversity of material options offered by Welle, your trusted Metal Casting manufacturer. Our commitment to excellence is reflected in the extensive range of material types for casting components.


Alloy Steel Casting Parts

Strength and Durability: Welle’s Alloy Steel Casting Parts combine exceptional strength with durability, making them ideal for applications demanding robust performance.
Versatility: Alloy steel components offer versatility in various industries, from automotive to industrial machinery.


Stainless Steel Casting Parts

Corrosion Resistance: Welle’s Stainless Steel Casting Parts provide superior corrosion resistance, ensuring longevity and reliability in challenging environments.
Hygienic Applications: Widely used in food and medical industries due to their non-reactive and hygienic properties.


Aluminum Alloy Casting Parts

Lightweight Excellence: Aluminum Alloy Casting Parts from Welle offer a perfect balance of strength and lightweight properties, ideal for applications where weight is a crucial factor.
Heat Dissipation: Widely utilized in automotive and aerospace industries for their excellent heat dissipation capabilities.


Carbon Steel Casting Parts

High Strength: Welle’s Carbon Steel Casting Parts exhibit high tensile strength, making them suitable for heavy-duty applications in construction and machinery.
Cost-Effective Solutions: Known for providing cost-effective solutions without compromising on performance.


Non-Ferrous Alloy Casting Parts

Non-Magnetic Properties: Non-Ferrous Alloy Casting Parts, including components like copper and brass, are prized for their non-magnetic properties, making them essential in electronics and telecommunications.
Electrical Conductivity: These alloys excel in applications requiring excellent electrical conductivity.


Grey&Ductile Iron Casting Parts

Versatility: Welle excels in crafting components from both Grey and Ductile Iron, offering versatility in applications.
High Strength: Ductile Iron provides high strength and ductility, suitable for a wide range of industrial uses.

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Casting Capabilities:Welle Value-Added Services


Tools Design&Engineering

Casting Simulation Software: Utilize cutting-edge casting simulation software for accurate predictions and optimizations in the casting process.

3D Modeling: Leverage advanced 3D modeling techniques to bring your casting designs to life and ensure precision in manufacturing.

Reverse Engineering: Welle excels in reverse engineering, breathing new life into existing components through meticulous analysis and recreation.

Casting Geometry Design: Benefit from expert casting geometry design services, optimizing shapes for enhanced performance and manufacturability.


CNC Machining&Fabrication

Precision Machining: Welle’s CNC machining capabilities ensure high-precision components that meet the most stringent requirements. Such as

  • Boring
  • Drilling
  • Honing
  • Milling
  • Oil grooving
  • Polishing
  • Shrink fitting
  • Slitting
  • Slotting
  • Tapping
  • Threading
  • Turning
  • Assembly

Heating&Surface Finishing

Tailored Heat Treatment: Welle provides customized heat treatment processes, enhancing the mechanical properties of your components.
Surface Finishing Excellence:Our surface treatment expertise extends to various industries, with typical products including:

Nickel-plated, zinc-plated, zinc-nickel, or zinc-iron plated parts for automotive applications.
Chrome-plated components for hydraulic equipment.
Cadmium-plated and anodized parts designed for Aluminum Components applications.
Elevate your products with Welle’s surface treatment, where precision meets aesthetics and functionality.

Quality Inspection

Non-Destructive Testing (NDT): Welle employs NDT techniques such as ultrasonic testing and magnetic particle inspection to identify defects without compromising the integrity of the components.
Material Testing: Rigorous material testing ensures that the composition meets the specified standards for strength, durability, and other critical factors.
Dimension Testing: Welle conducts thorough dimension testing to verify that each component adheres to exact specifications.Such as Visual Inspection,CMM,Laser Scanning for Dimensional compliance inspection,etc
Quality Certification: Welle provides comprehensive ISO9001 or IATF 16949 certifications to validate the quality and compliance of each casting.

Manufacturing Process of Precision Metal Castings

At Welle, our commitment to excellence shines through in our meticulous manufacturing processes, offering precision metal castings that stand out for their quality and versatility. Explore our expertise across various techniques and materials:
 Investment Casting
Craft intricate designs with high precision.
Utilizes stainless steel, alloy steel, carbon steel, nickel-based alloys.
Ideal for applications in automotive, medical, and marine hardware.
Sand Casting
Versatile and cost-effective for various shapes and sizes.
Ductile iron, gray iron, and aluminum options available.
Widely used in agriculture wear parts, pump castings, and valve castings.
Permanent Mold Casting
Consistent, reliable, and suitable for high-volume production.
Offers options in ductile iron, aluminum, and other alloys.
Applied in hydraulic equipment, construction equipment, and general die casting.
Shell Mold Casting
Ideal for intricate, small to medium-sized castings.
Utilizes materials like aluminum, bronze, and alloy steel.
Commonly found in telecom casting, glass spider fittings, and container castings.
Centrifugal Casting
Ensures uniformity and high-strength castings.
Materials include bronze, aluminum, and non-ferrous alloys.
Applied in high horsepower engine components and industrial settings.
Die Casting
High&Low-pressure die casting for complex shapes.
Aluminum, zinc, and copper-based alloys employed.
Widely used in automotive, medical, and general die casting.
Resin Shell Casting
Precision casting for intricate designs.
Materials include stainless steel, aluminum, and more.
Applied in prototyping die casting and continuous casting.
Spin Casting
Efficient for small to medium-sized production runs.
Utilizes materials like aluminum, zinc, and other non-ferrous alloys.
Applied in prototyping, automotive components, and builders’ hardware.
Choose Welle for precision metal castings with distinctive craftsmanship. Our innovative processes ensure superior quality across diverse industries, elevating your products to new heights of excellence.

The Various Uses of Welle Precision Casted Parts

We redefine excellence in precision metal castings through a fusion of craftsmanship and cutting-edge manufacturing processes. Our commitment to delivering superior quality across various techniques and materials sets us apart in the industry. Explore the artistry and innovation behind our diverse casting solutions, designed to meet the most demanding specifications in today’s competitive market.



With a significant market share, metal casting components dominate the automotive sector. Engine blocks, transmission parts, and intricate components contribute to the efficiency and reliability of vehicles, showcasing the versatility and wide application of metal castings.

Advanced Engineering Solutions: Precision Prowess in Aerospace and Defense


The aerospace industry relies heavily on metal casting for critical components. From aircraft engine parts to structural elements, the precision and strength offered by metal castings make them indispensable in this high-demand sector, where safety and performance are paramount.


Energy&Power Generation

In the energy sector, metal casting components have a substantial market share, providing essential parts for turbines, generators, and power transmission systems. The durability and heat resistance of castings make them integral to the efficient functioning of power generation facilities.



Metal casting components play a crucial role in the production of heavy machinery for construction, mining, and industrial applications. The robust nature of castings ensures the durability and longevity of equipment, contributing to the sector’s overall market dominance.



The medical industry relies on precision metal castings for a range of applications, including implants, prosthetics, and diagnostic equipment. The biocompatibility and precision offered by castings contribute to their substantial market share in the medical sector.

Micro-parts for-electronics-and-microelectronics


Metal casting components are widely used in the telecommunications industry, providing durable and corrosion-resistant elements for infrastructure. Antenna mounts, enclosures, and support structures showcase the market presence of castings in ensuring the stability and reliability of telecom networks.


Railway and Transportation

The railway sector utilizes metal casting components extensively for the manufacturing of railway equipment. From braking systems to structural components, castings contribute to the safety and efficiency of rail transportation, holding a considerable market share in the industry.


Marine and Offshore

In the maritime and offshore engineering sectors, metal casting components are crucial for shipbuilding and offshore structures. With a niche but significant market share, castings provide the necessary strength and corrosion resistance for marine applications.

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Custom Casting Components Knowledges and FAQs

We provide a range of materials, including alloy steel, stainless steel, aluminum, and specialized alloys. Material choice affects factors such as strength, corrosion resistance, and heat tolerance, ensuring optimal performance in diverse applications.Welle can meet material specification according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, GB standards.

Stainless Steel Casting Material Data Sheet

Martensitic Stainless Steel
100 Series
ZG2Cr13 and more
Duplex Stainless Steel
400 Series
Ferritic stainless steel
200 Series
ZG1Cr19Mo2 and more
Precipitation Hardening Stainless Steel
500 Series
15-5PH and more
Austenitic stainless steel
300 Series
SUS304 and more

Low Alloy Steel Casting Material Data Sheet

42CrMo4 and more

Aluminum Alloy Casting Material Data Sheet

BS L99
BS L169 and more

Carbon Steel Casting Material Data Sheet

A216 WCB
A216 WCA
ZG340-640 and more

Super Alloy Casting Material Data Sheet

Inconel 713
Inconel 718
Inconel 738
Inconel 625
Inconel 100
MARM-247 and more

Copper Alloy Casting Material Data Sheet

M0580 and more

Ductile Iron Casting Material Data Sheet


Compacted Graphite Iron Casting Material Data Sheet


High SiMo-Ductile Iron Casting Material Data Sheet


Grey Iron Casting Material Data Sheet


Austempered Ductile Iron Casting Material Data Sheet


High Nickel Ductile Iron Casting Material Data Sheet


Our expertise in investment casting and advanced technologies like 3D printing for patterns ensures the production of complex geometries with high precision. We use casting simulation software and CNC machining for tight tolerances and dimensional accuracy.

We offer various surface treatments, including electroplating, anodizing, and powder coating. These options enhance aesthetics, provide corrosion resistance, and contribute to the durability and functionality of the metal casting components.

Our commitment to quality is evident through ISO certifications and rigorous testing processes. We provide material certifications, non-destructive testing (NDT), and dimensional inspections to ensure the highest quality and compliance with industry standards.

Absolutely. Our capabilities in custom metal casting allow us to accommodate unique designs and specifications. Whether it’s complex geometries, specific material requirements, or tight tolerances, we tailor solutions to meet clients’ individual needs.

We focus on efficient tool design, streamlined production planning, and a deep understanding of manufacturing processes to offer competitive pricing. Our cost-effective solutions prioritize quality, ensuring clients receive optimal value for their investment.

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