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CNC Machining

Precision machining,
built to spec.

From prototypes to production components, manufacture complex parts with engineering-grade precision.

Get QuoteTalk to Engineering

No public prices: every part is quoted by an engineer from your model and drawing.

A machined aluminium housing, a turned shaft and cut gears on a machine table, with a mill cutting behind them
  • 7 materialsMetals and engineering plastics
  • ISO 2768-mFiner on request, from your drawing
  • 400 × 300 × 150 mmLargest part, 3-axis milled
  • From 5 daysWorking days, to dispatch

Materials

Metals and engineering plastics

Stock we machine regularly. Need something else? Choose “Other” in the request and tell us what the part has to do.

MetalsEngineering plastics

7 materials

Metals

  • Aluminium 6061-T6

    Light, strong and quick to machine

    A machined aluminium part
    Density
    2.7 g/cm³
    Get Quote
  • Aluminium 7075-T6

    High-strength aluminium for load-bearing parts

    A machined aluminium bracket
    Density
    2.81 g/cm³
    Get Quote
  • Brass C360

    Fittings, bushings and decorative parts

    A machined brass part
    Density
    8.5 g/cm³
    Get Quote
  • Mild steel 1018

    Strong, weldable, low-cost steel parts

    A machined steel fixture
    Density
    7.87 g/cm³
    Get Quote
  • Stainless steel 304

    Corrosion-resistant parts for food and outdoors

    A machined stainless flange
    Density
    8 g/cm³
    Get Quote

Engineering plastics

  • Acetal (POM-C)

    Low-friction gears, bearings and jigs

    A machined plastic part
    Density
    1.41 g/cm³
    Get Quote
  • Nylon 6

    Tough, wear-resistant plastic parts

    A machined nylon part
    Density
    1.14 g/cm³
    Get Quote

Capabilities

CNC capabilities

The envelope, the materials and what we hold to. Outside it? Send the drawing and ask.

Machining

The envelope a part has to fit.

Process
CNC machining, 3-axis
Work envelope
400 × 300 × 150 mm
Thinnest wall
0.8 mm
Holes & threads
Drilled and tapped to your drawing
Lead time
8 working days, express 5

Accuracy

What the drawing can ask for.

General tolerance
ISO 2768-m · ISO 2768-f · Tighter than ISO 2768-f
Surface roughness
Ra 3.2 µm · Ra 1.6 µm · Ra 0.8 µm
Tighter than that
Call it out on the drawing and an engineer will confirm it
Inspection
Dimensional report on request

Materials

Stock we cut from.

Metals
Aluminium 6061-T6 · Aluminium 7075-T6 · Brass C360 · Mild steel 1018 · Stainless steel 304
Engineering plastics
Acetal (POM-C) · Nylon 6

Files

What to send, and what it is read for.

Design file
STEP, IGES or BREP — the solid the part is quoted from
Technical drawing
PDF, for tolerances, threads and finishes
Also accepted
DXF and STL, with a drawing alongside
Read from them
Stock size, machined faces, holes and tapped threads
A part bigger, tighter or in another alloy?Send the model and the drawing — an engineer will tell you straight.Talk to an engineer

Design review

Designed for the way it’s made.

Use this checklist before you send your drawing. Our engineers review the details that affect fit, finish and manufacturing.

Request a design review
01Upload a STEP file

Machined parts are quoted from the exact solid, so send STEP, IGES or BREP where you can. A mesh has no true circles or flat faces to measure — the same file can still be 3D printed.

02Holes that can be drilled

Holes under 0.8 mm can't be drilled. Holes deeper than ten times their diameter are gun-drilling, and go to an engineer.

03Round internal corners

A round cutter leaves a radius in every internal corner. Square corners are pointed out, and corners tighter than 0.75 mm are flagged.

04Reachable features

Pockets deeper than eight cutter diameters, undercuts and freeform surfaces are flagged, and so is a part that needs four setups or more.

05Tolerances and threads

ISO 2768-m applies when your drawing says nothing. Anything tighter, and any tapped thread, is checked by an engineer and quoted.

06Send the drawing too

Add a PDF or DXF drawing with your STEP and its tolerances are the ones we make to.

How it works

From CAD to machined part

Start a request
  1. 01

    Upload CAD

    A STEP model, with a PDF or DXF drawing for tolerances, threads and finishes.

  2. 02

    Specify

    Material, quantity, tolerance, surface finish and when you need the parts.

  3. 03

    Engineering review

    An engineer checks manufacturability and asks about anything unclear.

  4. 04

    Quotation

    Price, lead time and terms — accept it online, or ask for changes.

  5. 05

    Machining & inspection

    Made to your drawing and inspected before packing.

  6. 06

    Delivery

    Shipped with tracking, a GST invoice and any reports you asked for.

FAQ

Questions, answered

Why isn't there an instant price?
A machined part's price depends on how it is held, how many setups it needs and what the drawing asks for. An engineer reads your model and drawing and sends a quotation with the price, lead time and terms.
Which files should I send?
A STEP file (AP214 or AP242) gives the most accurate quote. Add a PDF or DXF drawing when the part has tolerances tighter than ISO 2768-m, threads, fits or finishes to hold.
What tolerances can you hold?
ISO 2768-m applies when the drawing says nothing, and ISO 2768-f on request. Tighter tolerances are taken from your drawing and confirmed by an engineer in the quotation.
Can you sign an NDA?
Yes — tick “NDA before quoting” in the request and we sign yours, or send ours, before the files are reviewed.
Do you tap threads?
Yes. Tell us how many holes are tapped in the request, and an engineer checks the thread callouts on your drawing before quoting.

Your next project

Have a part to machine?

Upload your CAD and drawing — our engineers review it and reply with a quotation.

Get QuoteTalk to Engineering
AEMS

From engineering to manufacturing: one partner for PCBA, 3D printing and CNC machining, from the first prototype to production.

Amaravati Electronics Manufacturing Services Private LimitedPlot No: C-15A & B, 5th Floor, SSRK PlazaEC Complex, Kushaiguda, ECILHyderabad, Telangana, India 500062info@amaravatiems.com+91 96186 66372

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Photographs by Albert Stoynov, Minku Kang, Zheng ji on Unsplash.

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