Sampling and First Article Approval for Aluminium Extrusion
Quality · sampling, first article, colour approval Sampling and First Article Approval for Aluminium Extrusion Plan 30–40 days to a finished first article with a new die and anodising, or 12–20 days on an existing die and mill finish — then hold production until dimensions, finish and colour are signed. Sampling is a gated sequence, […]
How to Choose (and Audit) an Aluminium Extrusion Supplier
Sourcing and Procurement · audit, alloy, factory vs trader How to Choose (and Audit) an Aluminium Extrusion Supplier Choose the supplier by the decision rule first: lock the series from load, unsupported span or slot/hardware — then audit whether the seller can extrude, finish and certify that series at your volume. A 2020 quote without […]
Aluminium Extrusion Certificates and Standards Explained (EN 755, EN 12020, ISPM 15)
Quality · certificates, EN standards, packing marks Aluminium Extrusion Certificates and Standards Explained (EN 755, EN 12020, ISPM 15) On every RFQ, ask for three documents by name: an EN 10204 3.1 mill certificate, a PO that cites EN 755-9 or EN 12020-2 for dimensions, and packing with an ISPM 15 IPPC mark on the […]
Aluminium Extrusion Claims: What the Contract Must Say
Quality · claims, rework, contract risk Dimensional Claims, Rework and Penalty Clauses The buyer bears the risk of an unenforceable dimensional claim when the drawing never names a tolerance standard. EN 755-9 is the reference; without it, “out of tolerance” has no definition. Close the gap with three contract paths: rework at seller cost, concession […]
What EN 755-9 Allows: Aluminium Extrusion Tolerances
Quality · EN 755-9 wall, straightness, twist Aluminium Extrusion Tolerance Chart (EN 755-9) Standard extruded profiles hold wall ±0.15 mm, straightness 1.5 mm per metre and twist 2° under EN 755-9 — anything tighter is a different process, not a different supplier. A 45×90 six-slot 6063-T5 at 4.10 kg/m with I ≈ 68 cm⁴ is […]
Anodising vs Powder Coating: Thickness, Colour, Salt Spray
Surface treatment · film thickness, colour, salt spray Anodising and Powder Coating: Thickness, Colour and Salt Spray For outdoor T-slot workbenches choose sealed anodising at 20–25 µm or exterior polyester powder at ≥60 µm; decorative 10 µm indoor anodising is the wrong finish for weather, and colour breadth belongs to powder, not to the dye […]
Cleanroom and Medical Framing: There Is No Medical-Grade Aluminium Extrusion
Cleanrooms · medical · cleanability Cleanroom and Medical Framing: There Is No Medical-Grade Aluminium Extrusion The phrase medical-grade aluminium appears in a lot of marketing and in no alloy standard. What a cleanroom or a medical equipment frame actually has to satisfy is a cleanability requirement, a particulate class, a cleaning-chemical regime and a traceability […]
European Anodised Aluminium Specification: What Should a Purchase Order Contain?
Finishes · European specification European Anodised Aluminium Specification: What Should a Purchase Order Contain? A European buyer is rarely paying for the look of an anodised profile. They are paying for a finish whose thickness, sealing and certification can be written into a purchase order and measured on delivery. This is the standard that specification […]
Aluminium Profile Anchor Pins: A Preloaded Joint, Not a Pin
Connectors · preload and metallurgy Aluminium Profile Anchor Pins: A Preloaded Joint, Not a Pin Anchor pins are usually sold on alloy grade and surface finish. What decides whether the joint holds is different: how much clamping force the pin actually develops, and whether the aluminium thread it goes into can carry that force without […]
Good vs Bad Aluminium Profiles: What Your Receiving Dock Can and Cannot Check
Incoming quality · receiving dock Good vs Bad Aluminium Profiles: What Your Receiving Dock Can and Cannot Check Most “how to spot a bad profile” guides put visual inspection first, because it is the only check a buyer can do without equipment. That is exactly the problem: the two defects that cost the most money, […]
Aluminium Profile Finishes: Choose by Failure Mode, Not by Process Name
Surface treatment · failure and acceptance Aluminium Profile Finishes: Choose by Failure Mode, Not by Process Name A list of process names tells you what a finish is called, not how it will fail in your application. Finishing should be selected the way any other engineering decision is: from the failure you have to avoid, […]
T-Slot Aluminium: The Slot Mouth Is the Interface Standard, Not the Series Name
Slot geometry · fit and tolerance T-Slot Aluminium: The Slot Mouth Is the Interface Standard, Not the Series Name “40 series” is a family name, not a fit guarantee. Two suppliers can both sell a 40x40 section whose grooves will not accept the same nut. The dimension that decides compatibility is the slot mouth, and […]
ESD Anti-Static Workbench Grounding: The Four Joints That Break the Path
ESD workbenches · grounding continuity ESD Anti-Static Workbench Grounding: The Four Joints That Break the Path Almost every ESD bench that fails an audit fails in the same way. The worksurface reads a comfortable 107 ohms, the wrist strap passes, the footwear passes — and the overhead light arm, the pegboard and the tool rail […]
Precision Cutting and Tapping of Aluminium Profiles: The Tolerance That Actually Matters
Cutting, tapping and machining Precision Cutting and Tapping of Aluminium Profiles: The Tolerance That Actually Matters Most drawings ask for ±0.1 mm because it sounds precise. On a frame, the number that decides whether the kit assembles is usually not the cut length at all — it is the squareness of the end face, and […]
6063-T5 Aluminium Profile: What the Designation Actually Guarantees
Material audit 6063-T5 Aluminium Profile: What the Designation Actually Guarantees The designation on a drawing looks like a guarantee. It is closer to a route description: it says how the profile was cooled and aged, and nothing about whether the delivered metal meets the numbers you designed to. Here is what each part of the […]
Aluminium Extrusion Tolerances: What to Write, and How to Inspect
Metrology · incoming inspection Aluminium Extrusion Tolerances: What to Write, and How to Inspect Most tolerance articles tell you that a bigger profile has a bigger tolerance and that you should not ask for more accuracy than you need. None of them give you the numbers. Here are the EN 755-9 tables you actually inspect […]
Global Sourcing Excellence: Multi-Category OEM and ODM Manufacturing and Supply Chain Integration
Sourcing Global Sourcing Excellence: Multi-Category OEM and ODM Manufacturing and Supply Chain Integration A sourcing programme is not a purchase order. It is five gates, a document pack and a repeat order that matches the first. Here is what each gate needs, and the questions that separate a factory from a forwarder with a website. […]
T-Slot Aluminium Profiles for Industrial Frames and Automation: A Specification Playbook
Sourcing specification T-Slot Aluminium Profiles for Industrial Frames and Automation: A Specification Playbook Most profile problems are specification problems, not manufacturing problems. Nine lines turn a purchase order into a repeatable part — and six of them are the lines buyers leave out. 12 min readEN 755-9Incoming inspectionRFQ template Quick answer The nine lines that […]
Aluminum Extrusion Tolerances: How to Write a Specification Your QC Team Can Actually Inspect
Specifying a tolerance is the easy half. The hard half is measuring it honestly on a six-metre profile in a workshop at nine in the morning. Measurement methods, temperature error, and what to do when the goods are marginal.
