Extrusions From Mill Finish Extrusion to a Finished Product

Our unique press size allows us to run smaller profiles than other NZ Extruders. Which means we have the advantage of a higher level of precision, significantly lowering initial set-up costs and making smaller orders possible.

Lead time for standard profiles is typically 10 days for mill finish, and 15 days for powder-coated or anodised finished. However, get in touch, we will help where we can to get you out of a production jam.

Design & Die Development

Standard Profiles

We have a huge range of standard profiles, and application specific shapes that have been designed by is in house.   These dies are available for immediate use with no die making charge.

These are tun to order, and cut to your required length.   This is suitable for orders over atound 100-200Kg.

Custom Design

We can design your solution from scratch or from the ‘back of the napkin’.  If you need more help with looking at the wider context of your solution or design, or need different options, we’re happy to do that too.

You own your intellectual property in your die profile. If required, we are happy to sign a non-disclosure agreement with you if the job is sensitive. Rest assured we will not run your die for other customers or distribute details without first receiving your permission.

Stocked Items

We have a number of standard profiles held in stock, with no minimum order quantity.

Have a look at our standard profiles on our WebShop

Alexco. Quality aluminium extrusions. In house die design. Small to medium profiles. Specialised extrusions. Mill finish. Powder coating. Anodising.
Die manufacture costs can vary, depending on the complexity and tolerances. We manufacture all our dies in-house, for over 40 years, there’s not much we haven’t done before.

Our fully CNC – controlled method gives us consistent and repeatable results in a short time frame which means, once your design is finalised, we can usually have the sample to you in less than a week.

Once the sample has been approved, your first delivery can be as little as 5-10 days later

Extrusion Production

Alexco. Quality aluminium extrusions and finishing. Specialised extrusions. Mill finish. Powder coating. Anodising.


We run exclusively in 6060 alloy
Selected for its consistent and reliable extrusion properties, good anodising and finishing. We source our raw aluminium billet from several different suppliers, each with slightly different chemical compositions which results in different mechanical properties, depending on the specifications of the run. Having a full understanding of your end use, any subsequent work such as anodising, bending etc, will allow us to select the right material for your application.
Alexco. Quality aluminium extrusions and finishing. Specialised extrusions. Mill finish. Powder coating. Anodising.

Temper & Tolerances

Standard extrusion tolerances are to BBS1474
We can supply our material in a range of tempers, depending on the end-use requirements – F, T4, T5, T6. Depending on your requirements, we can exceed the standard tolerances. By knowing what’s critical to you and your project, we can usually design and manufacture around your requirements, or look at developing or adapting your design slightly to achieve the required result.
Alexco. Quality aluminium extrusions and finishing. Specialised extrusions. Mill finish. Powder coating. Anodising.

Cut Lengths

Cut lengths 1m to 6m as standard
We cut lengths 1m-6.5m as standard. Our standard tolerances are: -0 +6mm. Tighter tolerances are available for an additional charge. Cut lengths as small as 50mm are possible for a small additional charge. Note: Aluminium has a co-efficient expansion of 0.000023mm per mm length of extrusion per °C, that means a 6m long extrusion will expand 2mm when the temperature changes by 15°C.

Shipping & Order Fulfilment

Packaging and order fulfilment is managed onsite, we can ship nationally and internationally.

Shipping Tolerances

The nature of the extrusion process means there is a shipping tolerance of 5-10% on order quantities. Orders less than 250kg +/- 10%, orders greater than 250kg +/-5%.


Our standard packaging is bundled, and spiral wrapped on timber bases, with an additional paper covering. This is a cost-effective and robust level of protection for most applications and can be easily handled with forklifts and pallet trucks

On applications where surface finish is absolutely critical, we interleave with paper between extrusions to prevent them rubbing. We are also happy to work with you on customised packaging, from basic cardboard, through to fully branded retail packaging and distribution. International freight is available on request.

Alexco. Quality aluminium extrusions and finishing. Specialised extrusions. Mill finish. Powder coating. Anodising.
We're working hard to leave behind plastic packaging and moving towards paper and untreated timber