SEMI Precision CNC Machined Components

Custom Precision Machining Parts – SEMI Components

SEMI Precision CNC Machined Components

From one modular platform we supply custom precision machining parts produced to your drawings in Aluminium 6063, Aluminium 7075, SUS304 or SUS316L, and as a CNC machining parts manufacturer we combine that machining with anodizing, nickel plating and Zeiss 3D dimensional verification.

SEMI precision components - CNC Precision Machining Parts
SEMI precision components - CNC Precision Machining Parts

Machining Built Around Your Drawings

A single product line that keeps holes, threads and finishes consistent from the first part to the last.

Suntontop produces SEMI precision components to customer drawings, pairing CNC machining with oxidation processes that provide high precision and a variety of product colours. The line is fully customizable, and its modular design accommodates diverse assembly configurations by leveraging flexible material and finish options within a single product line.

Precision location comes from customized fixtures used during the manufacturing phase, which ensures high positional accuracy of the holes and threads that are critical in system integration. Advanced CNC equipment and measurement protocols support dimensional repeatability, a key advantage in reducing fitting issues when parts reach the assembly line.

Tight tolerance adherence and surface integrity reduce wear and potential assembly failures. The capacity to customize finishes for corrosion resistance or functional aesthetics contributes to product durability and to lower downstream maintenance, in configurations ranging from automated assembly lines to complex multi-component systems.

Specifications at a Glance

Published parameters for the SEMI precision component range, as listed on the product page.

Materials Aluminium 6063 / Aluminium 7075 / SUS304 / SUS316L
Processing Cycle 3–15 days
Equipment Precision CNC lathe (Tsugami), 3+2 machining center, etc.
Mechanical Processing CNC turning of length and outer circle per drawing; fixtures and jigs locate the product; finish machining of all precision holes and threaded holes to drawing requirements
Measuring Equipment Zeiss 3D, plug gauges, thread gauges
Surface Treatments Sandblasting clear anodizing / Sandblasting black anodizing / Hard anodizing / Nickel plating, etc.
Customization Custom parts to customer drawings; various surface treatments available as required

What the Machining Scope Covers

Each stage of the manufacturing route is tied to the drawing and to a measurable result.

  • Turning to drawing The CNC lathe works the length and outer circle according to the dimensions on your drawing.
  • Fixture-based location Customized fixtures and jigs locate the product during the manufacturing phase, which ensures high positional accuracy of holes and threads that are critical in system integration.
  • Finish machining of holes and threads All precision holes and threaded holes are finish-machined to the requirements stated on the drawing.
  • Measurement and repeatability Zeiss 3D measurement, plug gauges and thread gauges are used to confirm the result, supporting the dimensional repeatability that reduces fitting issues downstream.

Choosing Materials and Finishes

Material and finish are selected together, because the pair determines weight, corrosion resistance and service life.

Aluminium 6063 and Aluminium 7075

For automotive prototype and low-volume production work, Aluminium 7075 or Aluminium 6063 supports weight reduction. Hard anodizing can then be applied to extend component life.

SUS304 and SUS316L

Stainless grades are available where corrosion resistance is the deciding factor. In medical device manufacturing, corrosion-resistant materials such as SUS316L are used together with cleanroom workflow integration and dimensional verification via Zeiss 3D.

Surface Treatment Options

Sandblasting clear anodizing, sandblasting black anodizing, hard anodizing and nickel plating are offered. Finishes are chosen for corrosion resistance or functional aesthetics, contributing to durability and reduced downstream maintenance.

Where These Components Are Used

The same modular platform serves assembly lines, medical equipment builds and automotive prototypes.

Automated Assembly Lines

Stated compatibility with automated assembly lines and complex multi-component systems makes the modular design suitable for builds where several parts must fit together consistently.

Medical Device Manufacturing

Corrosion-resistant materials such as SUS316L, cleanroom workflow integration and dimensional verification via Zeiss 3D are the elements described for medical device applications.

Automotive Prototypes and Low-Volume Builds

Weight reduction through Aluminium 7075 or Aluminium 6063, followed by hard anodizing to extend component life, is the approach described for prototype and low-volume production.

Inspection and Dimensional Verification

Measurement is planned into the route rather than added at the end of it.

Because fixtures and jigs locate the product during the manufacturing phase, hole and thread positions are held accurately before finish machining begins. All precision holes and threaded holes are then completed to the requirements on the drawing.

Zeiss 3D measurement equipment is used alongside plug gauges and thread gauges. Together they confirm that tight tolerance adherence and surface integrity are maintained, which is what reduces wear and potential assembly failures once the parts are in service.

This measurement approach also supports dimensional repeatability across a batch, a key advantage when components from the same line are fitted into automated assembly lines or complex multi-component systems.

Send Your Drawing for a Quotation

Share the drawing, the material you have in mind and the finish you need. We will confirm the machining route, the surface treatment and the processing cycle for your batch.

Related Reading

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Frequently Asked Questions

which materials are available for these precision components?

the range covers aluminium 6063, aluminium 7075, sus304 and sus316l. aluminium grades are used where weight matters, while the stainless grades suit parts that need corrosion resistance, such as medical device components.

how long is the processing cycle?

the listed processing cycle is 3 to 15 days, and the exact schedule is confirmed with your quotation and drawing review.

how are holes and threads checked for position?

customized fixtures and jigs locate the part during manufacturing, and all precision holes and threaded holes are finish-machined to drawing requirements. zeiss 3d, plug gauges and thread gauges are used for verification.

what surface treatments can be applied?

sandblasting clear anodizing, sandblasting black anodizing, hard anodizing and nickel plating are available, along with other treatments selected to suit the required corrosion resistance or appearance.

can parts be produced to my own drawings?

yes. custom parts are produced to customer drawings, with various surface treatments available as required by the application.

which equipment is used for production and inspection?

production uses precision cnc lathes such as tsugami equipment and a 3+2 machining center. inspection is carried out with zeiss 3d measurement equipment, plug gauges and thread gauges.