Custom Iron Sand-Cast Bushings — HT200, HT250, GG25 and GGG40/GGG50/GGG60 Enquiries with CNC Boring

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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.

Email your requirements[email protected]
Product description
  • Product Name
    Custom Metal China Made Bushing Iron Casting
  • Material Grade
    GGG40, GGG50, GGG60 etc. As customers request
    Blank Process
    Sand casting , cast iron
  • Casting Tolerance
    CT9-11 for iron casting
    Machining Process
    CNC Machining , DRILLING , Milling, boring, Tapping etc.
  • Machining Tolearnce
    Up to IT7, Ra 0.8~3.2 , according to customer requirement
    Surface Treatment
    Dacromat Coating, Finish Painting etc. As customers request
  • Package for tractor chassis parts
    Multilayer wooden box with big plastic bag inside
    Lead Time
    45-50 days for iron casting
  • Our Service
    Supply metal parts solution as per customer's drawings/ samples

Iron bushings should be specified through the bore, outside interfaces and material required by the assembly. This custom sand-casting service works from drawings or samples, with CNC machining, drilling, milling, boring and tapping included in the enquiry. Material choices name HT200, HT250, GG25, GGG40, GGG50 and GGG60.

Define the bushing from its mating surfaces

Show the bore and the surfaces that locate the bushing in its assembly. Identify the finished dimensions and any additional holes, threads or faces required by the design. If a sample is used, explain which geometry and conditions the replacement component must reproduce.

Apply grade and tolerance references to the correct stage

Select the iron family, complete grade and governing material standard. The casting-tolerance reference is CT9–11, while machining references are up to IT7 and Ra 0.8–3.2. Put the applicable limits on the relevant dimensions and define the roughness unit and surface acceptance requirement for the ordered bushing.

  • Provide the bushing drawing or sample reference.
  • Select the required iron grade and order quantity.
  • Identify CNC-finished bore and mating dimensions.
  • Specify coating, surface requirements and inspection criteria.

Select the coating for the finished component

Dacromat coating and finish painting are available to customer request. Identify the required treatment and any contact or fitted areas needing particular instructions. Coordinate the finish with the final dimensional acceptance so the part is specified in the condition in which it will be received.

Keep the requested supply scope component-specific

Describe the bushing's intended duty and any required acceptance records. Agree packing for this order rather than automatically adopting details associated with another component type. The material, machining and finishing request should all refer to the same controlled bushing drawing.