Centrifugal castings are metal components produced by pouring molten metal into a rotating mold, using centrifugal force to distribute the molten metal against the mold wall during solidification. This manufacturing method is particularly suitable for cylindrical, tubular, ring-shaped, and rotationally symmetrical components where material distribution, internal soundness, and dimensional consistency are important.
Category: Lost Foam Casting
Centrifugal castings are metal components produced by pouring molten metal into a rotating mold, using centrifugal force to distribute the molten metal against the mold wall during solidification. This manufacturing method is particularly suitable for cylindrical, tubular, ring-shaped, and rotationally symmetrical components where material distribution, internal soundness, and dimensional consistency are important.
For OEM buyers, the value of centrifugal casting is not simply the casting process itself. The key question is whether the process can provide the required material structure, wall thickness, bore geometry, machining allowance, and dimensional performance for the final component.
Qingdao Zhaoyuqi Machinery Co., Ltd. provides custom centrifugal casting solutions based on customer drawings, CAD files, samples, material requirements, and application specifications. Depending on the component design, the manufacturing process can be combined with machining, surface treatment, and final inspection to produce finished or semi-finished components for industrial equipment and mechanical applications.
Centrifugal casting is a metal casting process in which molten metal is introduced into a rotating mold. As the mold rotates, centrifugal force pushes the molten metal toward the mold wall, where it gradually solidifies from the outside toward the inside.
This process is different from conventional gravity casting, where molten metal primarily fills the mold under gravity.
The rotating mold creates a different solidification environment that can be advantageous for certain components, particularly those with:
Cylindrical geometries
Tubular structures
Ring-shaped sections
Large internal bores
Rotational symmetry
Long or relatively thin walls
Requirements for consistent material distribution
However, centrifugal casting is not automatically the best solution for every metal component. The appropriate process depends on the component geometry, material, dimensions, production quantity, machining requirements, and application.
Our engineering team evaluates these factors before production rather than applying the same casting process to every project.
A centrifugal casting project involves more than simply pouring metal into a rotating mold. The interaction between mold rotation, molten metal temperature, mold condition, solidification, and component geometry can affect the final casting.
We begin by reviewing the customer's technical information, including:
2D engineering drawings
3D CAD models
Existing samples
Material requirements
Wall thickness
Bore dimensions
Machining allowances
Dimensional tolerances
Production quantity
Surface requirements
For components with critical internal dimensions, the required finished bore size and machining allowance should be clearly defined before production.
The material and manufacturing process are evaluated according to the actual application.
Important considerations may include:
Mechanical loading
Wear conditions
Temperature
Corrosion environment
Required hardness
Required strength
Final machining requirements
Component dimensions
This evaluation helps determine whether centrifugal casting is appropriate for the project.
The mold is prepared according to the component's dimensions and production requirements.
Mold condition and preparation can influence:
Surface quality
Dimensional consistency
Solidification behavior
Internal geometry
Casting quality
The mold is rotated at a controlled speed while molten metal is introduced.
The centrifugal force distributes the molten metal along the mold wall. Process parameters must be controlled according to the material and component design.
As the molten metal cools, the casting gradually solidifies.
The solidification process affects the internal structure and final mechanical characteristics of the component. Appropriate process control is therefore important for consistent production.
After solidification and cooling, the casting is removed from the mold.
The component can then undergo:
Cleaning
Cutting
Surface treatment
Shot blasting
Inspection
Where required, critical surfaces can be machined after casting.
Available operations may include:
CNC turning
CNC milling
Drilling
Boring
Reaming
Tapping
Internal bore machining
Face machining
Precision surface machining
The finished component is inspected against the approved drawing and technical requirements.
Inspection can include dimensional inspection, visual inspection, material verification, machining inspection, and other agreed quality checks.
The main advantage of centrifugal casting is its suitability for specific geometries and applications rather than being a universal replacement for other casting methods.
The rotating mold helps distribute molten metal around the casting wall. For suitable cylindrical or ring-shaped components, this can provide consistent material formation around the circumference.
Centrifugal casting is particularly useful when the component has a rotationally symmetrical structure.
Typical examples may include:
Sleeves
Bushings
Rings
Cylindrical components
Tubular components
Wear sleeves
Industrial liners
Custom cylindrical castings
For certain hollow cylindrical components, the process can reduce the need for conventional core structures used in some other casting methods.
Whether a core is required depends on the actual component design.
Many centrifugal castings are supplied as near-net-shape components that are subsequently machined.
This can be useful when the final component requires accurately machined:
Internal bores
Outer diameters
End faces
Grooves
Threads
Mounting surfaces
For B2B customers with an existing component design, centrifugal casting can be integrated into an OEM manufacturing workflow from engineering evaluation through production and machining.
The appropriate casting method depends heavily on the component.
| Consideration | Centrifugal Casting | Conventional Sand Casting |
|---|---|---|
| Cylindrical parts | Highly suitable for many designs | Suitable depending on geometry |
| Tubular parts | Particularly suitable | May require cores |
| Ring-shaped components | Suitable | Also possible |
| Complex non-symmetrical parts | May not be ideal | Often more flexible |
| Internal bores | Can be advantageous | Often require cores |
| Custom OEM production | Available | Available |
| CNC machining | Available | Available |
| Process selection | Geometry-dependent | Geometry-dependent |
The table is intended as a general engineering reference. The actual process should be selected after reviewing the customer's drawing, material, quantity, and application.
Material selection should be based on the component's actual operating conditions rather than simply choosing the strongest or lowest-cost material.
Depending on the project, available material options may include:
Gray iron can be considered for applications requiring good machinability, vibration damping, compressive strength, and dimensional stability.
It may be suitable for certain industrial housings, sleeves, bases, and mechanical components.
For additional information, see our Gray Iron Castings page.
Ductile iron provides higher tensile strength and toughness than conventional gray iron and may be considered for components exposed to higher mechanical loads or impact.
Learn more about our Ductile Iron Castings and related material options.
Carbon steel can be considered where the component requires specific strength and toughness characteristics.
Stainless steel may be evaluated for applications where corrosion resistance is an important requirement.
If your drawing already specifies a material grade or standard, provide it together with the drawing.
Our engineering team can evaluate the material requirement and manufacturing process before production.
Depending on the component geometry and application, custom centrifugal castings can include:
Cylindrical components can be manufactured for industrial machinery and mechanical assemblies.
Sleeves and bushings can be supplied with machining allowances for subsequent CNC turning, boring, or other precision operations.
Custom ring-shaped castings can be manufactured according to required outer diameter, inner diameter, width, and machining specifications.
Tubular components can be developed according to wall thickness, length, bore dimensions, material requirements, and final machining specifications.
Where material selection and component design are appropriate, centrifugal casting can be considered for certain wear-related components.
If your component does not correspond to a standard product, you can provide your drawing, CAD model, or sample for technical evaluation.
For many OEM projects, casting is only the first stage of manufacturing.
The final component may require precision machining to achieve the dimensions necessary for assembly.
A typical production route may include:
Drawing Review → Material & Process Evaluation → Mold Preparation → Centrifugal Casting → Cooling & Cleaning → Shot Blasting → CNC Turning / Milling → Boring / Drilling / Reaming → Dimensional Inspection → Packaging & Delivery
This integrated approach is especially useful when the casting contains both near-net-shape areas and precision functional surfaces.
For example, the main body of a component may be produced through casting, while the bore, end face, mounting surface, or thread is subsequently machined to the dimensions specified on the engineering drawing.
For industrial OEM components, quality control should not start only at final inspection.
The production process can be controlled at several stages.
Raw materials are checked according to the specified material requirements.
For applicable metal materials, chemical composition can be tested according to the agreed material specification.
Casting parameters are controlled according to the approved production process.
Finished castings are checked for visible casting and surface defects according to the agreed quality requirements.
Critical dimensions are measured against the customer's approved drawings.
Depending on the project, inspection may focus on:
Outer diameter
Inner diameter
Wall thickness
Length
Flatness
Concentricity
Machined surfaces
Mounting dimensions
Machined bores, threads, faces, holes, and other critical features are inspected according to the required tolerances.
Inspection reports and material documentation can be supplied according to project requirements.
Our OEM service is designed for manufacturers, engineering companies, equipment suppliers, and industrial distributors that need custom cast components rather than standard catalog products.
You can provide:
2D engineering drawing
3D CAD model
STEP / STP file
Existing sample
Material specification
Required dimensions
Tolerance requirements
Production quantity
Surface treatment requirements
Application information
We can then evaluate:
Drawing → Process → Material → Tooling → Prototype → Production → Machining → Inspection → Delivery
If you are replacing an existing casting supplier, an existing sample can also be provided for technical evaluation.
To reduce quotation time and avoid unnecessary technical communication, we recommend providing as much of the following information as possible.
A 2D drawing with dimensions and tolerances is preferred.
For complex components, STEP, STP, IGES, or other common CAD formats can help our engineers evaluate the geometry.
Please specify the required material grade if it has already been determined.
Provide the expected order quantity or annual demand.
Identify critical bores, diameters, threads, faces, grooves, and other functional surfaces.
Basic information about the component's working environment can help us evaluate material and manufacturing requirements.
Please specify painting, coating, shot blasting, anti-corrosion treatment, or other finishing requirements if applicable.
Custom centrifugal castings can be considered for a range of industrial and mechanical applications, including:
Industrial machinery
Mechanical equipment
Pump components
Fluid handling equipment
Power transmission systems
Agricultural machinery
Construction equipment
Manufacturing equipment
Wear-related components
Custom engineering assemblies
The suitability of centrifugal casting depends on the actual component geometry and operating requirements.
Centrifugal casting is a metal casting process that uses a rotating mold and centrifugal force to distribute molten metal along the mold wall during solidification.
Cylindrical, tubular, ring-shaped, and rotationally symmetrical components are commonly considered for centrifugal casting. The final suitability depends on the component design and material.
Yes. We manufacture custom components according to customer drawings, CAD files, samples, and technical specifications.
Yes. CNC turning, milling, boring, drilling, reaming, tapping, and other machining operations can be considered according to the component requirements.
Depending on the project, gray iron, ductile iron, carbon steel, stainless steel, and other customer-specified materials can be evaluated.
Yes. An existing component or sample can be provided for technical evaluation. Reverse engineering requirements should be confirmed before production.
Yes. Inspection and material documentation can be provided according to the agreed project requirements.
A 2D drawing or 3D CAD file, material requirement, quantity, machining requirements, and application information are recommended.
Yes. We provide custom OEM manufacturing for industrial customers according to approved technical specifications.
Send your drawing, CAD file, sample information, material requirements, estimated quantity, and machining requirements. Our engineering team can review the project and determine the appropriate manufacturing route.
Looking for a custom centrifugal casting manufacturer in China?
Send us your 2D drawing, 3D CAD file, existing sample, or technical specification.
Qingdao Zhaoyuqi Machinery Co., Ltd. can evaluate your component and help determine the appropriate:
Casting process
Material
Machining method
Dimensional requirements
Surface treatment
Inspection requirements
Drawing → Engineering Review → Process Evaluation → Casting → Machining → Inspection → Delivery
Contact us for your custom centrifugal casting project.
Professional technical research and development team to provide customers with the best solution.
Jimo District, Qingdao City, Shandong Province, China
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