Custom CNC-Machined Ductile/Grey-Iron Sand Castings — Heavy-Machinery Components with Drilling, Milling, Boring and Tapping
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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MaterialDuctile Iron / Gray Cast IronProduction ProcessSand Casting, Cast Iron Forming
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Casting ToleranceCT9-11 Casting Tolerance for Grey Cast Iron PartsMachining ProcessCNC Machining, Drilling, Milling, Boring, Tapping, etc.
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Packaging MethodMulti-layer wooden case with large inner plastic bagLead Time40 to 50 days, subject to final confirmation per actual product.
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Our ServiceCustom metal parts as per drawings/samples.Surface TreatmentShot Blasting, Oiling, etc., customizable as per customer requirements
Heavy-machinery casting enquiries should define the material, cast geometry and finished interfaces required by the equipment. This service includes ductile-iron or grey-iron sand-cast parts made from drawings or samples. CNC machining, drilling, milling, boring and tapping are named secondary operations.
Identify the machinery component and grade
Provide the complete part drawing or explain the requirements represented by the sample. Select the iron family and full grade needed for the design. Describe the operating duty and any load acceptance established by the project rather than relying on the heavy-duty label alone.
- Supply the controlled drawing or sample reference.
- Select the ductile-iron or grey-iron grade.
- Mark casting dimensions and machined interfaces.
- State quantity and the required surface condition.
Apply CT9–11 to the grey-iron casting scope
The casting-tolerance reference is CT9–11 for grey-iron parts. Identify the dimensions governed by that requirement and distinguish them from CNC-finished acceptance. Each required machining operation should be tied to the finished dimensions and datums on the component drawing.
Specify shot blasting or oiling
Shot blasting, oiling and customer-required surface treatments are available. Describe the selected result and any interfaces needing particular finishing instructions. The surface condition should be included with the required delivered component.
Define the supply and acceptance requirements
Multilayer wooden-case packing with a large internal plastic bag is stated. Identify the actual inspection characteristics and records required for the part. The grade, machining and surface specification should establish measurable precision and duty requirements for the ordered machinery component.
