CNC Machined Steel Circular Component
Custom machined metal parts like this circular steel component are widely used in industrial equipment where strength, dimensional stability, and accurate assembly are required. Manufactured from ST52 structural steel, this part provides reliable mechanical performance for long-term service in demanding working conditions.
Product Structure
The component features a solid round body with a precisely machined stepped internal cavity. The outer diameter is Φ100 mm, offering good structural rigidity. A 10 mm internal step is integrated to ensure accurate axial positioning during assembly.
The internal cavity diameter of Φ90.5 mm allows proper fitting with mating components. Multiple threaded holes are evenly distributed along the inner circumference, enabling secure fastening and balanced load distribution. All edges are processed with a 2 mm chamfer to improve installation safety and reduce the risk of damage.

Key Dimensions
| Parameter | Specification |
|---|---|
| Material | ST52 structural steel |
| Manufacturing Method | CNC turning & machining |
| Outer Diameter | Φ100 mm |
| Overall Thickness | 23 mm |
| Step Height | 10 mm |
| Internal Cavity Diameter | Φ90.5 mm |
| Chamfer | 2 mm |
| Surface Roughness | Ra 6.3 |
| Structure Type | Stepped circular component |
| Application | Mechanical housing / industrial assembly |
| Custom Options | Dimensions, tolerances, surface treatment |
Manufacturing Process

The part is produced using CNC turning combined with secondary machining operations. Critical surfaces are precisely controlled to ensure good concentricity and dimensional consistency.
During production, processes such as CNC turned steel parts machining, deburring, and surface inspection are strictly applied to maintain stable quality and repeatable performance. This approach makes the component suitable for precision steel machining requirements in industrial applications.
Application & Custom Capability
This component is commonly used in mechanical housings, fixture assemblies, and custom equipment structures. As an experienced supplier of custom steel machined components, we are able to manufacture parts according to customer drawings, samples, or technical requirements.
Whether for small batches or ongoing production, we support flexible manufacturing solutions for a wide range of custom machined metal parts, including material selection, tolerance control, and surface treatment options.
Frequently Asked Questions
Q: Can you manufacture this part according to our drawing or sample?
A: Yes. We specialize in custom machined metal parts and can manufacture according to your drawings, samples, or technical specifications.
Q: What tolerances can you achieve for this steel component?
A: Standard machining tolerances can be controlled according to drawing requirements. Tighter tolerances are available upon request.
Q: Can you supply this part in materials other than ST52?
A: Yes. Besides ST52 steel, we can machine carbon steel, alloy steel, stainless steel, and aluminum based on your application needs.
Q: What is your typical lead time?
A: Lead time depends on order quantity and machining complexity. For standard custom parts, production usually takes 7–20 days.
Q: Do you support small batch or prototype orders?
A: Yes. We accept prototype, small-batch, and mass production orders to support product development and long-term supply.
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