Typical size
Often > 1 m length and > 1 ton weight
Usinage CNC
Dedicated large-format CNC for parts typically over 1 m and 1 ton — aerospace, energy, shipbuilding, and heavy equipment.
Large Part CNC Machining is a professional manufacturing service that uses large-scale, dedicated CNC machine tools to cut workpieces that exceed the size or weight capacity of conventional equipment. Typical parts are longer than 1 meter and heavier than 1 ton, and are widely used in aerospace, energy, shipbuilding, and mining machinery.
Large-part CNC is for work that does not fit a standard vise: frames, spars, hubs, and plates that are often longer than a meter and heavier than a ton. Gantry mills, large HMCs, and big lathes establish datums on the floor, not on a benchtop.
AIHFABS quotes this route when logistics, stress relief, and span accuracy matter as much as the toolpath. If the part is small and tight, use milling, turning, or precision machining instead.
Size, weight, and crane access are reviewed before a rate is promised.
Often > 1 m length and > 1 ton weight
Around ±0.025 mm on critical features; large spans project-dependent
Gantry mills, large HMC/VMC, large lathes, universal turn-mill
Gantry crane / modular transport as required
Quoted per project (fixturing and logistics driven)
Aluminum plate, carbon and alloy steel, stainless, titanium, cast iron, and selected plastics.
Most faces stay as-machined. Paint, blast, or local polish is applied where the drawing asks.
Gantry or HMC texture on structural faces. Cosmetic plates can get a finer pass.
Bead or grit blast plus primer or paint on frames that leave the shop as assemblies.
Pads, bores, and datums finished tighter than the rest of the span.
Use this page for envelope and mass. Use precision machining for small, documented fits.
| Procede | Delai | Tolerance | Tarif |
|---|---|---|---|
| CNC Machining ServicesMetals & plastics | From 1–5 business days depending on complexity and finish | ±0.05 mm standard; tighter on request with drawing callouts | Instant quote · typical prototype from $45 |
| CNC Milling ServicesMetals & plastics | Simple 1–3 days; complex 3–7 days; batch 5–15 days | ±0.01 mm standard; ±0.005 mm high precision | Instant quote · typical prototype from $40 |
| CNC Turning ServicesMetals & plastics | Simple 1–3 days; complex 7–10 days | ±0.01 mm standard; ±0.001–0.002 mm high precision | Instant quote · typical prototype from $35 |
| CNC Routing ServicesPlastics & composites | From 2–4 business days | Medium precision (~±0.025 mm class) | Instant quote · typical panel job from $30 |
| 5-Axis CNC MachiningMetals & plastics | From 3–7 business days depending on complexity | ±0.02–0.05 mm on critical features when specified | Instant quote · typical prototype from $80 |
| Precision Machining ServicesMetals & plastics | From 3–8 business days (complexity dependent) | ±0.005–0.01 mm; Ra 0.4–1.6 μm; CPK ≥ 1.33 | Instant quote · quoted to drawing / inspection grade |
| Large Part CNC MachiningMetals & plastics | Quoted per project (fixturing and logistics driven) | Around ±0.025 mm on critical features; large spans project-dependent | Project quote · fixturing and logistics driven |
| Swiss CNC MachiningMetals & plastics | From 3–7 business days; faster on repeat batches | ±0.005 mm standard; down to ±0.0025 mm when specified | Instant quote · most economical in batch runs |
Part envelope, weight, and material are reviewed against large-travel machine capacity.
Heavy-duty fixturing, thermal control, and stress-relief steps stabilize the workpiece.
Gantry, HMC/VMC, or large lathe/turn-mill operations establish datums and critical features.
Floor CMM, laser tracker, or large 3D scanning verifies spans and hole patterns.
Envelope, weight, and lift points are confirmed before fixturing. Stress relief is scheduled when the stock or the weldment needs it.
Floor CMM, laser tracker, or large-area scan verifies hole patterns and long datums. Tight numbers should sit on local pads, not on a full 2 m face.
Design for a crane and a long table, not for a 3-axis vise.
| Feature | Recommended practice |
|---|---|
| Cavities | Reduce deep pockets and undercuts that force long tools on a gantry. |
| Span tolerance | About ±0.1 mm/m is more honest on large travels than a blanket ±0.02 mm. |
| Local pads | Put tight holes and faces on machined pads, not on as-welded skin. |
| Lift & ship | Show lift points and packing limits early; they change the quote. |
CNC machining removes material from solid stock with computer-controlled mills, lathes, and multi-axis centers.
Fiche procede
CNC Milling Services use computer numerical control (CNC) mills to cut workpieces with rotating tools according to programmed toolpaths.
Fiche procede
CNC Turning Services use computer numerical control lathes to remove material while the workpiece rotates at high speed and the cutting tool feeds along a set path.
Fiche procedeTypical jobs are over 1 m in a major length and can exceed 1 ton. Smaller tight parts should use standard or precision milling.
Around ±0.025 mm on local critical features. Long spans are quoted to the drawing and the machine travel.
Yes — gantry crane, modular packing, and freight are part of the project quote.
Yes, after stress relief and a datum strategy. Send the weldment model plus the finish-machine drawing.
Upload still starts the file. Oversized work is often confirmed manually because fixtures and logistics move the number.
Use these process-specific checks when preparing your model, drawing and quote request. The confirmed quotation and approved drawing define the requirements for your part.
A machine envelope alone does not prove a large part can be completed. Stock, fixtures, tool reach, handling and access to each face also matter. Share the full model, mass estimate and required datum relationships for a project review.
Removing substantial stock can release stress and move the part. Thin sections need support during machining and measurement. Specify lifting provisions, finished surfaces to protect and transport restrictions before the manufacturing plan is finalized.
Confirm stock condition, setup sequence, agreed measurement support, flatness or alignment requirements and protective packaging. Establish which dimensions will be inspected on-machine or by a separate method.
AIHFABS chiffre impression 3D et usinage CNC à partir d’un upload CAO. Comparez SLA, SLS, MJF, SLM, FDM, DLP, fraisage et tournage, puis ajoutez lissage vapeur, teinture, anodisation, polissage ou thermolaquage à la même commande.
Le devis instantané convient aux prototypes, gabarits, boîtiers et petites séries. Matière, procédé, quantité et délai s’affichent ensemble.
Matière, procédé, quantité et délai s’affichent ensemble, pour éviter un nouveau tour de mails fournisseurs à chaque modification.
Téléversez STL, STEP et formats CAO courants pour un devis en ligne.
Comparez technologies d’impression 3D et options CNC sur la même pièce.
Choisissez polymères ou métaux, puis ajoutez une finition hardware 3D Plus si besoin.
Vérifiez prix et délai avant paiement, ou demandez un devis manuel.
Si cette page décrit un procédé, un secteur ou une pièce à reproduire, partez de l’upload et alignez technologie et finition sur votre plan.
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