General
After receiving the customer’s PDF and 3D drawings, we reviewed the material specification, dimensions, tolerances, manufacturer identification requirements, and casting feasibility.
We need to stamp the Manufacturer’s Identification Symbol on the back of the product. We have determined to use YT-202410, our logo YT, plus the order time.
Project Overview
This project involved the production of custom cast iron components for an industrial customer in Panama.
The parts were manufactured using ASTM A48 Class 20 grey cast iron through a cast iron foundry process. Each component includes the manufacturer’s identification symbol cast on the back of the product for traceability and quality control.
Material – ASTM A48 Grey Iron
ASTM A48 grey iron is widely used in industrial castings due to its good machinability, vibration damping, and wear resistance.
Grey iron components are commonly used for:
- pump housings
- valve bodies
- machinery bases
- industrial structural components
These properties make cast iron a reliable and cost-effective material for mechanical and structural applications.
Manufacturing Process
The production process included:
- cast iron melting and mould casting
- cooling and removal from mould
- machining of critical dimensions
- inspection and quality verification
For custom cast iron components requiring mould development, critical-dimension machining, hole processing, identification marking, surface finishing, and documented dimensional inspection, explore our custom precision metal parts manufacturing capabilities.
Iron casting allows manufacturers to produce complex and durable components efficiently by pouring molten iron into moulds and allowing it to solidify into the required shape.
Process
The components were produced using a shell mold casting process. We first manufactured the metal tooling and produced samples for customer approval before starting batch production.
The samples were sent by express courier to the customer’s office for inspection and approval. After approval, batch production started immediately.
Sample pictures



Batch Quantity
275pcs
Drawing

Material
Cast Iron, ASTM A48, Class 20
It is the common Cast iron, the standard is ASTM A48. We need to make sure that our material’s chemical composition and mechanical properties 100% meet the requirements of this standard.
Product Picture
After around 30 days of production (China spring festival 20 days is extra), we finished production.

Quality Inspection
Material Certificate

Size Certificate
We measured all the sizes in the drawing, took pictures and then sent them to our client for approval before shipment.
We marked the number of each size inside the drawing, which corresponds to each measured photo












Size Certificate
Packing
The finished cast iron components were securely packed in export-standard plywood cases, with shipping marks attached before dispatch. For OEM projects involving castings together with machined parts, fabricated components, plastic parts, rubber parts, surface treatments, or assemblies, explore our broader custom industrial parts manufacturing capabilities.


For a complete overview of casting technologies, read our Metal Casting Process Guide.





