Cast A356 Optical Housing Body, 5 Axis Machined Bore Cluster

Cast A356 lens barrel body with 5 axis finish machining: coaxial bore cluster with position tolerances, multi direction mounting threads, machined threads and slots grounded. Quote in 24 hours.

A356 Cast Aluminum Lens Barrel Body, 5 Axis Finish Machined

Semiconductor & Optics

A cast aluminum optical module housing finished on five axis centers: complex internal cavity, coaxial bore cluster, and multi directional mounting interfaces all cut from the casting.

Custom to drawing±0.005 mm standard toleranceQuote in 24 hNo MOQISO 9001 · ISO 13485 · AS9100D

Request a Quote for This Part

Or email drawings to kgl@kglmfc.com

Relevant Capabilities

5-Axis CNC Machining

Materials

Aluminum

Key Specifications

Parameter	KGL Capability
Material	Cast aluminum A356, as cast then finish machined
Process	Casting, 5 axis CNC boring and milling of cavity and bores, threading, deburring, cleaning, inspection
Bores	Multi step coaxial cluster with position tolerances
Threads and slots	All machined, grounding per drawing
Inspection	CMM on geometry, inside micrometer and caliper on bores, appearance
Tolerance	±0.005 mm standard on metals, engineering plastics, and carbon fiber composite
Certifications	ISO 9001:2015, ISO 13485:2016, AS9100D
Capacity	100+ CNC machines including 11 five-axis centers
MOQ	No MOQ; 1-piece prototypes supported
Quote	Within 24 hours for complete 2D/3D files

About This Part

Casting gets the housing near net shape; five axis machining gets it optical. This A356 body carries a cluster of precision coaxial bores with position tolerances, milled internal cavity geometry, and mounting threads in several directions, every functional surface cut from the casting rather than used as cast.

All threads and mounting slots are machined and grounded per the drawing note, which matters for optics where a floating ground or a paint filled thread is a real failure. The appearance standard is smooth surfaces with no burrs, scratches, or missing material.

Inspection runs the CMM on the bore positions and coaxiality, inside micrometers and calipers on the bores, and visual appearance.

This part family supports the Optical / Semiconductor Parts industry. Read how KGL machines parts for that sector, then send your drawing for a quote.

Why Machine It at KGL

Five-Axis Fleet

100+ CNC machines including 11 five-axis centers run complex geometry in single setups, so tolerances do not stack up across refixturing.

Verified Accuracy

±0.005 mm standard on metals, plastics, and carbon fiber composite, verified on Hexagon and Zeiss CMMs (0.0015 mm accuracy).

Fast Prototypes

Engineering feedback with every quotation; prototype parts typically machined in 15 to 25 days.

One Supplier, End to End

Material sourcing, machining, heat treatment coordination, finishing, CMM inspection and export packaging under one roof.

Part-Specific Advantages

Coaxial bore cluster with position tolerances, CMM verified
Complex internal cavity five axis finish machined
Multi direction mounting threads, all machined and grounded
A356 casting with functional surfaces fully machined
Lightweight rigid optical module housing

Typical Applications

Optical module housings and lens barrel bodies
Optoelectronic device enclosures with bore clusters
Cast then machined precision optical structures

Commercial Terms

Commercial	Detail
MOQ	No MOQ; 1-piece prototype supported
Quote	Within 24 hours for complete 2D/3D files
Terms	EXW / FOB Shenzhen
Certifications	ISO 9001:2015
Packaging	Individual bubble wrap, export carton or wooden case
Lead Time	Prototypes 7 to 15 days; production scheduled by volume

Common Questions

Why cast then machine instead of billet?

The outer shape is organic and does not need precision; the bores and interfaces do. Casting buys the shape cheaply and five axis machining buys only the geometry that needs it.

Why do the threads need grounding?

Optical assemblies are sensitive to stray paths and to coating in the threads. Machined, grounded threads are conductive and clean where the drawing needs them to be.