Custom Grey Ductile Iron Green Sand Casting Valve Parts and Flywheels with CNC Machining
Direct factory support
Get a quote that fits your project
Send your drawing or product reference, material grade and required quantity. Relia will review the requirements with you.
- Drawing & specification review
Confirm the supply scope and critical requirements.
- Samples before custom production
Review inspected samples before approving a batch.
- Inspection documents
Agree material and dimensional records for your part.
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ServiceOEM ODM
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MaterialGrey Iron, Ductile IronApplicationIndustry Machinery, Automotive, Electricity
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ProcessMould, Casting, CNC MachiningMachining ProcessCNC Lathe, CNC milling center
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Heat treatmentAnnealing, Quench and temper, ADISurface treatmentZinc plating, Painting, Powder Coating
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Quality ControlPFMEA, PPAP, APQP, Control Plan, MSAMachining tolerance+/-0.005mm, ISO2768-mk
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Casting toleranceCT4-CT9
Custom green-sand casting enquiries cover grey-iron and ductile-iron valve parts or flywheels for industrial, automotive and electrical-component requests. Select the actual component and complete grade. A valve-duty requirement and a rotating-service requirement need their own drawing, supplied condition and acceptance criteria.
Define the geometry for the selected duty
For a valve part, identify the connection and internal interfaces that control assembly and service. For a flywheel, define the locating geometry and any rotating-service checks required by the design. Generator-related requests should state the actual component function and operating requirements.
Separate casting and machining acceptance
Mold work, casting, CNC lathe work and milling-center processing are named within the service scope. The casting reference is CT4–CT9, while machining references are ±0.005 mm and ISO2768-mk. Assign each requirement to agreed dimensions, the relevant document and the delivered stage being measured.
- Provide the controlled drawing and order quantity.
- Mark functional interfaces and the measurement datum scheme.
- Define the material condition and required acceptance records.
- Identify any application-specific testing or sample approval.
Coordinate treatment and quality planning
Annealing, quench-and-temper and ADI-related treatments should match the chosen grade and required condition. Zinc plating, painting and powder coating are named finish options. PFMEA, PPAP, APQP, Control Plan and MSA are quality-planning services to scope for the order. Connect the selected treatment and planning requirements to the actual component, including any masking or appearance criteria at finished interfaces.
