Qingdao Zhaoyuqi Machinery Co., Ltd. manufactures custom cast parts and OEM metal components for machinery manufacturers, equipment companies, engineering contractors, and industrial distributors.
We produce cast parts according to 2D engineering drawings, 3D CAD files, physical samples, and customer specifications. Depending on the component design, material, production volume, and required accuracy, suitable manufacturing processes can be evaluated before production.
Category: Clay Sand Casting
Qingdao Zhaoyuqi Machinery Co., Ltd. manufactures custom cast parts and OEM metal components for machinery manufacturers, equipment companies, engineering contractors, and industrial distributors.
We produce cast parts according to 2D engineering drawings, 3D CAD files, physical samples, and customer specifications. Depending on the component design, material, production volume, and required accuracy, suitable manufacturing processes can be evaluated before production.
Our casting capabilities can support components used in industrial machinery, agricultural equipment, motorcycles, automotive applications, construction equipment, pumps, valves, and other mechanical systems.
A cast part is not simply a piece of metal produced in a mold. The final performance of a casting depends on the relationship between material, part geometry, mold design, casting process, machining requirements, and inspection criteria.
For this reason, our OEM process starts with engineering review rather than immediately selecting a casting method.
Send us your drawing, CAD file, or sample for a casting evaluation.
Cast parts are metal components manufactured by pouring molten metal into a mold and allowing it to solidify into the required shape.
Casting is widely used for components with shapes that may be difficult, expensive, or inefficient to manufacture entirely by machining, forging, or fabrication.
Depending on the component, casting can integrate multiple design features into a single part, including:
Mounting bosses
Reinforcing ribs
Flanges
Internal cavities
Curved surfaces
Bearing housings
Connection points
Structural supports
Complex external profiles
This can reduce the number of separate components required in an assembly and, for suitable designs, reduce subsequent machining and fabrication operations.
However, not every component should automatically be manufactured by casting.
The appropriate process depends on factors such as:
Part geometry → Material → Weight → Production volume → Dimensional requirements → Machining → Application conditions
This is why we evaluate each OEM component individually before production.
Our custom casting service covers a wide range of mechanical and industrial components.
Custom cast components for industrial machinery may include:
Machine bases
Brackets
Housings
Covers
Mounting supports
Gear housings
Structural components
Mechanical connectors
These components can be supplied as castings or combined with CNC machining where critical dimensions require additional processing.
For applications involving vibration damping, machinability, and compressive loading, see our Gray Iron Castings.
Agricultural equipment operates under vibration, impact, dust, moisture, and repeated mechanical loads.
Depending on the application, cast parts can include:
Machinery brackets
Housings
Mounting components
Support structures
Gear-related components
Mechanical connectors
Custom equipment parts
For agricultural equipment manufacturers and OEM buyers, we also provide a dedicated Agricultural Machinery Parts manufacturing solution.
For agricultural machinery projects, material and surface treatment should be selected according to the actual operating environment.
Motorcycle components often require compact geometry combined with strength and dimensional consistency.
Custom cast parts can include:
Engine brackets
Mounting supports
Frame connectors
Housings
Control mounts
Structural components
Transmission-related components
For motorcycle manufacturers and aftermarket component suppliers, see our Motorcycle Castings page for more information about custom motorcycle components.
Casting can be used for selected automotive components where the geometry and material requirements are suitable.
Potential applications include:
Brackets
Housings
Mounting components
Structural parts
Mechanical supports
Engine-related components
The final manufacturing process should be determined according to the component drawing and required mechanical performance.
Pumps and valves often contain complex flow paths, mounting structures, and sealing surfaces.
Depending on the design, cast components can include:
Valve bodies
Pump housings
Flanges
Mounting components
Fluid-handling components
Structural supports
Critical sealing and mounting surfaces can be CNC machined after casting.
Material selection is one of the most important decisions in a casting project.
The lowest-cost material is not necessarily the most suitable option.
The material should be selected according to the component's:
Mechanical load
Impact conditions
Vibration
Wear
Corrosion exposure
Operating temperature
Machining requirements
Service life requirements
Depending on the component and manufacturing process, material options may include the following.
Gray iron is widely used for machinery components because of its good machinability, vibration damping, compressive performance, and dimensional stability.
It can be considered for:
Machine bases
Housings
Covers
Brackets
Machinery components
For detailed material information and applications, see our Gray Iron Castings page.
Ductile iron provides higher tensile strength and toughness than conventional gray iron and can be considered for components exposed to higher mechanical loads or impact.
Typical applications include:
Structural components
Housings
Brackets
Machinery components
Automotive components
Agricultural machinery parts
For projects where higher strength and toughness are important, see our Ductile Iron Castings page.
Carbon steel castings can be considered for components requiring specific strength and toughness characteristics.
Material grade should be specified according to the customer's engineering requirements and applicable standard.
Stainless steel can be considered when corrosion resistance is an important requirement.
Typical applications may include:
Pumps
Valves
Marine equipment
Food-processing equipment
Chemical equipment
Industrial components
If your project already specifies a material grade, please provide it with your drawing or technical specification.
Our engineering team can evaluate the manufacturing requirements according to the specified material.
Different casting processes have different strengths.
Choosing a casting method should depend on the actual part rather than simply selecting the process with the highest advertised precision.
Sand casting is widely used for general industrial components and larger castings.
It can be suitable for:
Machine housings
Bases
Brackets
Large structural components
Industrial machinery parts
Lost foam casting can be considered for certain complex-shaped components where reducing parting lines and simplifying mold structures can be advantageous.
You can learn more about the process on our Lost Foam Castings page.
Investment casting, also called lost wax casting, is suitable for selected components requiring detailed geometry and relatively fine features.
It can be considered for:
Small precision components
Complex mechanical parts
Valve components
Pump components
Detailed OEM castings
For more information, see our Investment Casting Castings page.
A reliable casting is produced through controlled steps rather than a single casting operation.
We review the customer's:
2D drawings
3D CAD files
Physical samples
Material requirements
Dimensional tolerances
Surface requirements
Production quantity
We also identify critical dimensions and features that may affect casting design or machining.
The appropriate manufacturing route is evaluated according to:
Part geometry
Material
Component size
Production quantity
Dimensional requirements
Machining requirements
Surface treatment
Depending on the component, this may involve sand casting, lost foam casting, investment casting, or another suitable production method.
For cast components requiring dedicated tooling, the pattern and mold system are developed according to the approved design.
Tooling design can consider:
Part geometry
Shrinkage
Machining allowance
Parting structure
Gating
Risers
Core requirements
The selected metal is melted according to the required material specification.
For applicable projects, chemical composition can be monitored to help maintain material consistency between production batches.
Molten metal is introduced into the prepared mold.
The filling and solidification process can influence:
Internal soundness
Surface quality
Dimensional stability
Casting defects
Proper process control is therefore important for repeat production.
After solidification and cooling, the casting is removed from the mold.
Sand, gates, risers, and other unwanted material are removed.
Depending on the product requirements, castings can undergo:
Shot blasting
Surface cleaning
Grinding
Painting
Powder coating
Anti-corrosion treatment
Where required, critical surfaces can be machined after casting.
Available operations may include:
CNC milling
CNC turning
Drilling
Boring
Tapping
Reaming
Surface machining
Casting establishes the basic geometry, while CNC machining can establish critical assembly dimensions.
Finished cast parts are inspected according to the customer's approved drawings and quality requirements.
Inspection may include:
Dimensional inspection
Visual inspection
Material verification
Chemical composition testing
Hardness testing
Machining inspection
Surface inspection
Inspection documentation can be provided according to project requirements.
Many OEM customers do not need a casting supplier alone.
They need a manufacturing partner capable of supplying a finished component ready for assembly.
For suitable projects, we can combine casting with CNC machining.
A typical workflow is:
Casting → Cleaning → Shot Blasting → CNC Machining → Dimensional Inspection → Finished Cast Part
This approach can be useful when a component contains both complex cast geometry and precision-machined functional surfaces.
Examples include:
Bearing seats
Mounting holes
Threaded holes
Bores
Sealing surfaces
Flat mounting surfaces
The machining allowance and critical surfaces should be defined during the engineering review.
Our OEM service is designed for customers who already have a component design or existing part and need a manufacturing partner.
You can provide:
A dimensioned engineering drawing helps define material, tolerances, surface requirements, and critical features.
A STEP, STP, IGES, or other compatible CAD file can help evaluate complex geometry.
An existing component can be provided for technical evaluation when drawings are unavailable.
Provide the required material grade if it has already been determined by your engineering team.
Estimated annual demand or order quantity helps us evaluate tooling and manufacturing requirements.
If possible, tell us what the component does and what conditions it operates under.
This information allows the production route to be evaluated according to the actual component.
For OEM components, quality should be controlled throughout production rather than only at the end.
Materials are checked against the specified material requirements.
Applicable cast materials can be tested to verify chemical composition according to the required material specification.
Critical dimensions are checked against approved drawings.
Machined holes, bores, threads, mounting surfaces, and other functional features are inspected.
Casting surfaces are inspected according to agreed quality requirements.
Finished products are checked before packaging and shipment.
Inspection reports and material documentation can be provided according to project requirements.
One of the most useful parts of an OEM casting project is identifying potential problems before tooling is manufactured.
Several common issues can be reduced through early engineering review.
Very thin areas may increase casting difficulty and create filling or solidification problems.
Appropriate radii can help improve metal flow and reduce stress concentration.
Not every surface needs the same tolerance. Identifying critical dimensions can prevent unnecessary machining requirements.
Applying extremely tight tolerances to every dimension can increase manufacturing cost without improving actual component performance.
The material grade should be clearly specified before production.
Knowing how the component is loaded, mounted, or exposed to the environment can help determine whether the selected material and process are appropriate.
For this reason, drawing review before quotation can be valuable for complex OEM cast parts.
Our custom cast parts can be developed for a wide range of industries and equipment.
Machine housings, brackets, supports, bases, and mechanical components.
For broader equipment component requirements, see our Industrial Parts page.
Equipment housings, brackets, supports, and mechanical components.
Our dedicated Agricultural Machinery Parts page provides more information for agricultural equipment applications.
Selected structural, mounting, and mechanical components.
Engine-related, frame, mounting, and mechanical components.
See our Motorcycle Castings page for motorcycle-specific applications.
Selected heavy-duty structural and mechanical castings.
Housings, valve bodies, flanges, and fluid-handling components.
Custom components for machinery and engineering systems.
The final specification of a cast part should be based on the customer's engineering drawing.
| Item | Customer Requirement |
|---|---|
| Material | Gray Iron / Ductile Iron / Steel / Stainless Steel / Specified Grade |
| Casting Process | Sand Casting / Lost Foam / Investment Casting / Suitable Process |
| Part Weight | According to Drawing |
| Dimensions | According to Approved Drawing |
| Tolerance | According to Drawing / Agreed Standard |
| Machining | CNC Turning / Milling / Drilling / Boring / Tapping |
| Surface Treatment | Shot Blasting / Painting / Coating / Customer Requirement |
| Inspection | Dimensional / Material / Surface / Mechanical Testing |
| Packaging | Export Packaging / Customer Requirement |
Important: Casting tolerances, surface finish, mechanical properties, and inspection requirements should be confirmed for each individual component rather than applying one specification to every cast part.
We manufacture according to customer drawings, CAD models, samples, and technical specifications.
Different casting processes can be considered according to part geometry, material, quantity, and required accuracy.
For suitable components, casting and CNC machining can be combined into one manufacturing workflow.
We review component requirements before production to identify potential manufacturing issues.
Material, dimensional, machining, and surface inspections can be arranged according to project requirements.
We work with overseas customers on technical communication, production coordination, inspection documentation, packaging, and shipment arrangements.
Cast parts are metal components produced by pouring molten metal into a mold and allowing it to solidify into the required geometry.
Depending on the application and casting process, materials may include gray iron, ductile iron, carbon steel, stainless steel, alloy steel, and other customer-specified materials.
Yes. We manufacture custom OEM cast parts according to 2D drawings, 3D CAD files, samples, and technical specifications.
Yes. A physical sample can be provided for technical evaluation. Reverse engineering requirements should be discussed before tooling and production.
Yes. CNC machining can be added for critical holes, threads, bores, mounting surfaces, sealing surfaces, and other functional dimensions.
The appropriate process depends on the part's geometry, material, size, production quantity, dimensional requirements, and machining requirements. Our engineering team can evaluate the component before production.
Yes. Casting can be suitable for repeat production when the component geometry, material, tooling, and production volume are appropriate.
Material documentation and inspection reports can be provided according to customer and project requirements.
A 2D drawing or 3D CAD file is preferred. Material requirements, quantity, machining requirements, surface treatment, and application information are also helpful.
MOQ depends on the component, tooling requirements, material, manufacturing process, and production volume. The requirement can be evaluated after reviewing the project information.
Looking for a custom cast parts manufacturer for your next OEM project?
You do not need to determine the casting process before contacting us.
Send us your:
2D Drawing / 3D CAD File / Physical Sample / Material Requirement
Our team can evaluate:
Part Design → Material → Casting Process → Tooling → Machining → Inspection
For suitable projects, we can support the process from initial engineering review through casting, machining, quality inspection, packaging, and delivery.
Qingdao Zhaoyuqi Machinery Co., Ltd.
Custom OEM Cast Parts for Industrial and Mechanical Applications