Cast to near shape, then machined on the same floor. We cover aluminum, steel, stainless and copper alloys, from one prototype to 10,000+ part runs, with 100% inspection before shipment.
Four failures we see on incoming inspection, and what each one costs you.
Gas holes and shrinkage show up only after the first cut. The part is already half-machined, so the whole casting is scrap. You pay for the pour, the freight and the machining time, then restart the schedule.
Hard scale and sand inclusion at the surface wear carbide inserts fast. Cycle times stretch, insert cost climbs, and the surface finish drifts between the first and the twentieth part of the run.
If the mold parting line and the machining datum disagree, wall thickness varies from part to part. You end up sorting, re-fixturing or adding an extra operation to rescue the batch.
Pattern work, pour scheduling and finishing run on separate calendars. When one slips, the machining slot is lost and the whole order pushes out. Line-down risk lands on your desk, not theirs.
Sand casting gives you the geometry: internal passages, ribs, thick bosses and part sizes that would waste material if cut from solid. What it does not give you is a bearing bore at ±0.005 mm or a sealing face at Ra 0.8–1.6 μm.
We handle both steps. The casting comes off the foundry floor, gets its first datum established, and moves to a CNC cell where the critical features are cut in one or two setups. No third party to chase when a dimension drifts.
Machining allowance is a decision, not a default. Too little stock and a slight mold shift leaves you with a breakout on the finished surface. Too much and you spend cycle time turning cast iron into chips.
We review wall sections, draft angles and the parting line against your tolerance stack before tooling is made. For a part like a Ø400 mm pump housing, the allowance runs larger on the flange than on the bore. For small brackets, 1.5–2 mm is often enough.
Compare the process against what the part actually needs.
| Condition | Sand castings | Better fit |
|---|---|---|
| Part size above 500 mm | Good fit | Die casting is size-limited |
| Wall thickness below 3 mm | Hard to fill | Die casting or machining |
| Annual volume over 20,000 | Tooling cost per part stays high | Die casting |
| Internal passages and cores | Good fit | Machining from solid is costly |
| Cosmetic mirror surface | Needs extra finishing | Investment casting |
| One-off or low volume | Good fit | Pattern cost rules out die casting |
Six services that cover the part after the pour.
16 simultaneous 5-axis centers cut angled faces, ports and contoured surfaces in one setup on cast stock.
12 four-axis mills handle cylindrical castings and bolt patterns that index around an axis.
27 three-axis machines take the flat faces, slots and bores where a simple fixturing job is enough.
16 mill-turn centers combine turning and milling for housings with a round body and side features.
Pattern and core checks before tooling is committed, so geometry errors surface early.
Anodizing, plating, powder coating, bead blasting and laser marking on cast and machined faces.
What the shop can hold on a casting, by machine group.
| Item | Capability | Notes |
|---|---|---|
| Maximum part size | 4,000 mm | Largest travel 4,000 × 400 × 150 mm |
| Medium envelope | 750 × 1,150 × 550 mm | Also 600 × 600 × 600 mm |
| Compact envelope | 500 × 500 × 450 mm | Also 500 × 310 × 200 mm |
| Rotary work | Ø400 mm table | Indexed features around a cast body |
| Tolerance | ±0.005 mm | On machined features, not as-cast |
| Surface finish | Ra 0.2–0.8 μm | Fine finish on seal and bearing faces |
| Standard finish | Ra 1.6–3.2 μm | As-machined condition |
| Order size | 1 to 10,000+ | No minimum order quantity |
Six reasons engineers keep the machining and the casting in one place.
Founded in 2011. The pour and the cut sit in the same supply chain, so a dimension problem is one phone call, not a three-party argument.
Tighter than ±0.0002 in. We quote the tolerance per feature, not as a blanket number for the whole casting.
Send the model and drawing. You get a quotation and a free DFM analysis within 12 hours, with the allowance and datum points marked up.
Once the drawing is released, the job can enter production within 24 hours. Pattern and tooling lead time is quoted separately.
Raw material check, in-process monitoring and final inspection on every order. Reports available on request.
Below 2% across past orders. Parts ship in 3–5 days once machining is complete.
Housing and bracket castings with a machined mounting face and a sealed bore.
Pump bodies and gearbox casings with a Ø400 mm rotary table setup for bores.
Cast frames and heatsink bodies with flat machined faces for board mounting.
Cast hubs and end plates finished on 5-axis centers with a single datum chain.
As-cast surfaces follow normal foundry variation, which depends on part size and wall sections. Machined features are a different story. We cut those to ±0.005 mm on the CNC side.
Tell us which dimensions matter. We quote the tolerance per feature rather than promising one number across the whole part.
Aluminum grades include 6061, 6061-T6, 2024, 5052, 5083, 6063, 6082, 7075 and ADC12. Stainless covers 303, 304, 316, 316L, 420, 430, 431, 440C and 17-4PH. Carbon and alloy steel includes 1018, 1045, 4130, 4140, 4340 and A36.
Copper and brass grades such as C101, C110, C27400, C28000 and C36000 are also available, along with titanium and specialty alloys.
It depends on the feature. Flanges and large flat faces usually need 2–3 mm so a slight mold shift still cleans up. Bores that are cut early can run 1.5–2 mm.
For large housings, we sometimes leave more on the mounting face than on the interior pocket. Send the model and we will mark the allowance on the DFM report.
No. The quotation and DFM analysis come back within 12 hours at no cost. The report flags thin sections, draft problems, datum conflicts and any feature that will not clean up.
You can use that feedback with another supplier. We would rather catch a geometry issue before tooling is cut.
There is no minimum order quantity. We run one prototype casting through the same process as a 10,000-part production order.
Low-volume jobs pay more per part because pattern and setup costs are spread over fewer pieces. That is a cost curve, not a policy limit.
First-article inspection catches most drift before the run continues. If a machined dimension moves mid-run, we stop, measure the casting and check the fixture before cutting more.
The fix is either a fixture correction or a pattern change, depending on whether the error comes from the casting or the setup. We tell you which one it is.
Uploads are secure and confidential. We sign a non-disclosure agreement on request before receiving files.
Data handling follows our ISO 27001:2022 procedures, which cover access control and file retention.
Anodizing in clear, color, hardcoat and conductive types. Electroless nickel, zinc, silver and gold plating. Powder coating and black oxide. Bead blasting, tumbling, brushing and polishing.
Laser marking and engraving are available with a minimum character height of 1.5 mm.
Upload your model and drawing. We return a quotation and a free DFM analysis within 12 hours, with the machining allowance and datums marked up.
Quote in 12 hoursNo minimum order quantity100% inspection before shipmentNDA on request
Trusted by engineers and manufacturers worldwide
Upload your 3D model or 2D drawing and get a quotation with a free DFM analysis. Maximum processing size 4,000 mm.
CNC Metals 13 grades
CNC Plastics 10 grades
Machines & processes 12 options
Surface & post-processing 10 options
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