A 6063-T5 aluminium pulley is chosen where weight matters: aluminium machines quickly and weighs about a third of steel. This page covers 6063-T5 aluminium pulley produced for robotics: high speed machining of aluminium with sharp tooling and controlled chip evacuation. Every unit is supplied to drawing rather than to a catalogue description, and 300 × 200 × 80 mm envelope is the starting point rather than the limit.
In practice the difficulty is rarely the nominal size. ±0.02 mm is held on the features that locate the part in the assembly, and the process is set up so that the first piece and the five hundredth measure the same way.
Specification
| Process | High speed machining of aluminium with sharp tooling and controlled chip evacuation |
|---|---|
| Material / configuration | 6063-T5 aluminium |
| Size / capacity | 300 × 200 × 80 mm envelope |
| Tolerance | ±0.02 mm |
| Surface finish | as machined, anodised or bead blasted |
| Application | pulley for robotics |
| Inspection | Dimensional report, material certificate, first article report on request |
| Lead time | 7–15 working days for samples, 3–4 weeks for production |
| Minimum order | 1 piece for prototypes, from 50 pieces for production pricing |
Manufacturing process
Production begins with a drawing and material review. Stock is certified, the operation sequence is fixed, and high speed machining of aluminium with sharp tooling and controlled chip evacuation is carried out on equipment maintained to hold ±0.02 mm over a full shift, not just on a first piece.
Material is purchased against a certificate and checked on receipt, so the composition is known before any cutting starts. Work in progress is identified by part number and operation, and the finished parts are deburred, cleaned and protected before they leave the machine area.
Typical applications
Most of the work supplied in this category falls into the following examples.
- Lightweight structural brackets.
- Electronic enclosures and heat sinks.
- Robot arm components.
- Aerospace interior fittings.
- Optical instrument bodies.
Quality control and documentation
Inspection is not a final formality. Dimensions are checked during the cycle and again at the end, so drift is corrected while there is still stock to remove.
Material certificates to EN 10204 3.1, dimensional reports and first article inspection reports are issued with the shipment where the application requires them. Calibration dates and measurement uncertainty are recorded alongside every result.
Ordering, lead time and packaging
Orders start from a single piece. Samples are quoted from the 3D model, and production pricing follows once quantity, finishing and inspection are agreed.
Frequently asked questions
Which aluminium grade should be specified?
6061-T6 for general work, 7075-T6 where strength matters, 6082 for structural sections and 2024-T3 where fatigue performance is specified. Anodising behaviour differs between them.
Does anodising change dimensions?
Yes. A standard 10 µm anodised layer adds roughly 5 to 8 µm per surface after sealing, so threads and close fitting bores are either masked or machined to suit before treatment.
Can you supply material and inspection certificates?
Yes. Material certificates to EN 10204 3.1, full dimensional reports, first article inspection reports and, where required, PPAP or AS9102 documentation are issued with the shipment.
Send the drawing or the 3D model for a quotation. Include material, quantity, tolerance and finish, and a detailed quote with lead time is returned within one working day.
