Aluminum Alloy CNC Machining

Malaysia-based aluminium machining for housings, heat sinks, brackets, base plates, spacers and turned components. Milling, turning, drilling, boring, tapping and finishing — to your drawing, from first article through repeat production.

CNC Aluminum Shift Knob Extension Rod, CNC machined aluminium part by Gran Industries
Turned and anodised aluminium gran.my / products
34
Aluminium parts in catalogue
800 × 1200
Max milled envelope, mm
Ø 180
Max turned diameter, mm
24 h
Quote turnaround

What we actually cut
in aluminium.

All thirty-four aluminium parts in our catalogue, grouped by the operation that defines them. Every one came off our machines and has its own page — find the one closest to yours, it is the fastest way to tell whether we are the right shop.

Assemblies and machined castings

Aluminium components finished and fitted together, and cast blanks brought to final dimensions on the machine.

2 parts
All 34 aluminium parts in the catalogue  →

Which aluminium,
and what it costs you.

Grade choice changes machinability, finish quality and price — not just strength. If your drawing does not name a grade, we will propose one with the quote and say why.

Grade familyWhere it fitsFinishing note
6061-type The default for housings, brackets, covers, support components, plates and general OEM detail parts. Balanced machinability, weldability and corrosion resistance. Takes clear and dyed anodising cleanly — the safe choice when appearance matters.
7075-type Chosen when strength and stiffness lead the design: load-bearing brackets, adapters, tactical and motorsport hardware. Costs more and is less forgiving on thin walls. Anodises darker and less evenly than 6061; hard anodising is the usual route.
5052-type Sheet-oriented covers, panels and formed parts rather than solid block machining. Good corrosion resistance, forms well. Fine for clear anodise; dyed finishes can vary batch to batch.
Other grades 6063, 5083, 2000-series and cast stock are quoted on request against the drawing and the quantity. Confirm availability at quotation

Longer read: How to choose aluminium grades for CNC machined parts · 6061 vs 7075

Finishing changes
the size of the part.

Say so on the drawing. Anodising grows roughly half its thickness per surface, so a bore toleranced before treatment is not in tolerance after it — we flag this at quotation rather than after the first article.

Finishing routes

Anodising, decorativeType II, 5–25 µm
Anodising, hardType III, 25–75 µm
Bead blastbefore anodise
Polishing and brushingon request
Chemical conversionMIL-DTL-5541
Deburr and edge breakStandard on every part

What to tell us

ColourReference or approved sample
Masked areasMarked on the drawing
ThreadsMask, or tap after treatment
Cosmetic facesWhich faces are visible
Dimensions after treatmentFlag which ones
Acceptance testOnly if service needs it

The full method — standards, types, classes, thickness build-up and masking — is written up in our specification library.

Read the guide  →

What we can hold
on an aluminium part.

Published on the page so you can rule us in or out in thirty seconds. If a feature on your drawing sits outside it, we say so in the quote.

Machining envelope

Milling3-, 4- and 5-axis
TurningCNC lathes + turn-mill
Max milled envelope800 × 1200 mm
Max turned diameterØ 2 – 180 mm
Machines on the floor88 CNC

Tolerance and finish

Standard toleranceISO 2768-m (± 0.10 mm)
Tightest tolerance held± 0.005 mm
Surface finish, as machinedRa 1.6 µm
Minimum order quantity1 pc, prototype
Quality systemISO 9001:2015

What we check before
we price an aluminium part.

Five questions decide most of the cost. Answering them in the RFQ usually removes a full round of emails.

Whether the part is primarily a milling job, a turning job, or a mixed-operation component — this sets the machine, the fixturing and half the price.

Alloy preference and stock form, against the strength, finish and corrosion behaviour the part actually needs in service.

Hole features, thread sizes, wall thickness and datum relationships — thin walls and deep pockets in aluminium drive cycle time more than overall size does.

Which surfaces are cosmetic, which are masked, and which dimensions must still hold after anodising.

Whether this is a sample-stage part or scheduled repeat production — the two are quoted and fixtured differently.

Send the drawing.

Six things let us quote an aluminium part without a round of questions. Miss one and we will ask — but the quote takes a day longer.

  • 3D model STEP / IGES
  • Dimensioned drawing PDF
  • Alloy and temper or ask us
  • Quantity, and repeat volume required
  • Critical tolerances and datums if any
  • Anodise colour and masking if any
+60 108812868 info@gran.my No. 85, Jalan SILC 2/1, Johor

Or email STEP / IGES / PDF / DWG straight to info@gran.my — we will match it to this request.

Your drawing stays with the engineering team. We reply within 24 hours on business days.

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