What we make, and how an order runs
The detail behind the four cards above — scope, materials, tolerances and inspection, and exactly what to send for a quote.
What we make
We machine CNC turned and turn-milled components for automation, robotics and equipment builders. Typical parts are stepped shafts with concentric diameters and shoulders, dowel and locating pins, plain and flanged bushes, thin-wall sleeves and spacers, spacer and retaining rings, threaded connectors and couplings, round and lock nuts, plus custom rotational geometries manufactured to your print.
Most work runs on 2-axis CNC turning; parts that also need flats, cross-holes, slots or angular features are milled in the same setup — see CNC turning and turn-mill machining. Batch sizes run from prototype and small-batch quantities through repeat production orders. There is no published blanket minimum: the starting quantity for a particular part depends on material, setup and machining time, and is confirmed when we review your drawing.
From drawing to parts
Send a 2D drawing as PDF with tolerances and finish marked, a 3D model in STEP/STP if you have one, and state the material, quantity and any certificate or report you need. From there:
- DFM review — we check tolerances, corner radii, tool access, thread and surface requirements, and flag what will drive cost or risk before anything is priced. The review is free.
- Quote — unit pricing and the production lead time for that order come back within 24 hours on working days, once the drawing package is complete.
- First article — the first completed part is checked in full against the drawing before the run continues; the record can be shared with you on request.
- Production and in-process inspection — key dimensions are checked during the run as tools wear, so drift is caught mid-batch rather than at the end.
- Outgoing check and shipment — a final dimensional and visual check plus count and packing review, then DHL or FedEx, with trade terms such as DDP or FOB on request.
Dimensional inspection reports and material certificates (mill test reports) are supplied with shipment on request — state the requirement at RFQ so it is built into the plan. Drawings and process details stay on file, which is why repeat orders come back consistent batch to batch. The full sequence is on how it works.
Materials
Standard scope is steel, stainless steel and copper alloys: carbon steel such as 45#, alloy steel such as 40Cr, austenitic stainless 304/304L and 316/316L, copper, free-cutting brass such as H62 and lead brass such as HPb59-1. Aluminium and engineering plastics are available on request, but they are not our promoted scope.
That is the list we work with most often, not an exclusive one. If your drawing calls a grade under a different designation, send it and we confirm availability with the quote instead of assuming a substitution. Surface finish, heat treatment and plating requirements belong on the drawing or in the enquiry, because the manufacturing route and inspection plan are fixed at quotation stage. Grade detail and certification options are on materials.
Tolerance and inspection
±0.01 mm is the standard tolerance on precision turned features; tight-tolerance features are controlled down to ±0.005 mm, subject to feature geometry and the inspection plan agreed at quotation. Whether a specific feature can hold that is decided on your drawing during the DFM review, not assumed from a headline figure.
Shop-floor metrology covers micrometers for outside diameters and thickness, a height gauge for height, step and position checks, a profilometer wherever a surface-roughness value (Ra) is called out, and vision inspection for small profiles and edges that are awkward to gauge by contact. Coordinate measuring capability (CMM) is planned and not yet in service — ask for current status if your project needs CMM reports.
Every batch runs first-article, in-process and outgoing inspection; the staged sequence is described on quality.
Who we work with
Our customers are mostly automation and robotics integrators, machine builders and equipment manufacturers who want parts from the factory rather than through a trading company. We quote and correspond in English, work from drawings in metric or inch, and answer technical questions in the same 24-hour window as the pricing.
If a design needs protecting first, we can sign an NDA before drawings are released. The sectors we quote most are on industries we serve.
What to send for a quote
Drawing (PDF) + material + quantity + tolerance and inspection requirements, and a STEP/STP model if you have one. WhatsApp +86 186 6789 9166 or [email protected].
You get DFM feedback and pricing within 24 hours on working days. Lead time is confirmed per order — we do not publish a fixed number of days, because it depends on complexity, quantity, material availability and current capacity.
Quick answers
- Is there a minimum order? Small orders are accepted; the exact starting quantity depends on material, setup and machining time, and is confirmed from your drawing.
- How fast is a quote? Within 24 hours on working days once the package is complete; complex mill-turn geometry can need a little longer, and we say so.
- Can I get certificates? Yes — mill test reports and dimensional inspection reports on request, stated at RFQ.
- Can you sign an NDA? Yes, before sensitive designs are released.
Anything else is covered in the full FAQ.
