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Large Part CNC Machining Services

Large part CNC machining planning for custom plates, housings, fixtures and structural components.

  • Large workpiece review
  • Fixture and datum planning
  • Stable inspection requirements
Large Part Machining services by JADMAKE
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Large Part Machining for Custom Precision Parts

JADMAKE reviews large CNC parts for machine envelope, workholding, flatness, datum strategy, shipping and inspection requirements before quotation.

JADMAKE workshop for Large Part Machining
Capabilities

Large Part Machining Capabilities

Choose the machining strategy that matches part geometry, access, tolerance and production quantity.

Large CNC machined aluminum plate with pockets and holes

Large Plate Machining

Custom plates, mounting surfaces, tooling plates and structural components reviewed by drawing and machine envelope.

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CNC workshop for large part workholding review

Workholding Review

Clamping, datum setup, deformation risk and machining sequence are reviewed before quotation.

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CNC machining setup for datum and flatness planning

Flatness and Datum Planning

Large flat surfaces and datum relationships should be defined clearly to avoid unnecessary cost.

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Engineering review for large CNC part shipment planning

Packaging and Shipment

Large machined parts need practical packaging, protection and export shipment planning.

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Large Part Machining Capabilities and Specifications

Available ProcessesCNC milling, drilling, tapping, boring, finishing and inspection review for large parts
Typical PartsLarge plates, housings, fixtures, frames, mounting bases and structural components
Maximum Part SizeConfirmed by drawing, machine envelope, workholding method and inspection plan before quotation
Standard ToleranceDrawing-based and reviewed against part size, material, flatness and datum requirements
FlatnessConfirmed by functional surface, material condition, machining sequence and inspection method
MaterialsAluminum, steel, stainless steel and project-specified materials by feasibility review
QuantityPrototype and low-volume large parts reviewed by geometry, material and setup complexity
Lead TimeConfirmed after drawing, material, size, finish and inspection review
DocumentationInspection reports and material certificates by project requirement
ShippingPackaging and shipment requirements should be discussed before production

Large Part Machining Materials

Aluminum

Lightweight, corrosion resistant, machinable and suitable for cosmetic or functional finishing.

Applications
RF housings, heat sinks, brackets, covers, fixture plates and enclosures.
Common Grades
6061, 7075, 5052, 2024

Stainless Steel

Corrosion resistant, durable and suitable for parts that need strength and stable surfaces.

Applications
Fixtures, brackets, covers, equipment components and industrial precision parts.
Common Grades
304, 316, 17-4 PH

Carbon and Alloy Steel

Strength, wear resistance and optional heat treatment depending on grade and application.

Applications
Tooling plates, structural components, machinery parts and durable brackets.
Common Grades
1045, 4140, 40Cr

Brass and Copper

Good conductivity, machinability and corrosion resistance for electrical and thermal uses.

Applications
Electrical parts, contacts, RF details, grounding parts and thermal components.
Common Grades
C360, H59, C110

Titanium

High strength-to-weight ratio and corrosion resistance, with higher machining cost and tool-wear risk.

Applications
High-performance prototypes, lightweight structures and demanding precision parts.
Common Grades
Ti-6Al-4V

Engineering Plastics

Lightweight, insulating, low-friction or chemical-resistant options with material-specific stability risks.

Applications
Jigs, housings, wear parts, test fixtures and functional prototypes.
Common Grades
POM, PEEK, Nylon, PC, ABS

Surface Finishing Options for Large Part Machining Parts

As Machined

Finish requirements can be reviewed with your material, tolerance and application needs.

Bead Blasting

Finish requirements can be reviewed with your material, tolerance and application needs.

Anodizing

Finish requirements can be reviewed with your material, tolerance and application needs.

Hard Anodizing

Finish requirements can be reviewed with your material, tolerance and application needs.

Powder Coating

Finish requirements can be reviewed with your material, tolerance and application needs.

Painting

Finish requirements can be reviewed with your material, tolerance and application needs.

Electroless Nickel Plating

Finish requirements can be reviewed with your material, tolerance and application needs.

Zinc Plating

Finish requirements can be reviewed with your material, tolerance and application needs.

Passivation

Finish requirements can be reviewed with your material, tolerance and application needs.

Polishing

Finish requirements can be reviewed with your material, tolerance and application needs.

Black Oxide

Finish requirements can be reviewed with your material, tolerance and application needs.

Laser Marking

Finish requirements can be reviewed with your material, tolerance and application needs.

Why Choose JADMAKE

Engineering Review Before Production

CAD files, drawings, material, tolerance and finishing requirements are reviewed before machining starts.

Consistent Quality Control

ISO 9001 process control and inspection checkpoints help manage dimensions, appearance and batch repeatability.

Direct Factory Communication

Project requirements are discussed with the team responsible for engineering review and production planning.

Flexible Production Volumes

Support for prototypes, engineering samples and repeat low-volume orders.

Complete Manufacturing Support

Machining, finishing, inspection, packaging and delivery are coordinated together.

Quality Control for Large Part Machining Parts

Inspection reports, material certificates and surface treatment certificates can be provided according to project requirements.

Drawing ReviewMaterial VerificationFirst Article InspectionIn-Process InspectionFinal Dimensional InspectionSurface and Appearance InspectionPackaging and Shipment
CMMHeight GaugeProjectorMicrometerRoughness TesterPlug GaugesRing Gauges

Large Part Machining Parts We Manufacture

Aluminum Housings CNC machined part example

Aluminum Housings

  • Material: Aluminum
  • Process: CNC Milling
  • Finish: Anodizing
  • Tolerance: Project dependent
Heat Sinks CNC machined part example

Heat Sinks

  • Material: Aluminum
  • Process: CNC Milling
  • Finish: Black Anodizing
  • Tolerance: Project dependent
Precision Brackets CNC machined part example

Precision Brackets

  • Material: Aluminum / Steel
  • Process: 3+2 Axis Milling
  • Finish: As Machined
  • Tolerance: Project dependent
Robotics Components CNC machined part example

Robotics Components

  • Material: Aluminum / Steel
  • Process: CNC Milling
  • Finish: Painting
  • Tolerance: Project dependent
Communication Enclosures CNC machined part example

Communication Enclosures

  • Material: Aluminum
  • Process: CNC Milling
  • Finish: Anodizing
  • Tolerance: Project dependent
SATCOM Components CNC machined part example

SATCOM Components

  • Material: Aluminum / Alloy Steel
  • Process: 5-Axis Milling
  • Finish: Black Oxide
  • Tolerance: Project dependent
Optical Mounts CNC machined part example

Optical Mounts

  • Material: Aluminum / Stainless Steel
  • Process: CNC Milling
  • Finish: Passivation
  • Tolerance: Project dependent
Automation Fixtures CNC machined part example

Automation Fixtures

  • Material: Aluminum / Steel
  • Process: CNC Milling
  • Finish: Hard Anodizing
  • Tolerance: Project dependent
Medical Device Components CNC machined part example

Medical Device Components

  • Material: Stainless Steel / Plastic
  • Process: CNC Milling
  • Finish: Polishing
  • Tolerance: Project dependent
Aerospace Structural Parts CNC machined part example

Aerospace Structural Parts

  • Material: Aluminum / Titanium
  • Process: 5-Axis Milling
  • Finish: As Machined
  • Tolerance: Project dependent

Large Part Machining Services for Different Industries

Robotics

Structural brackets, actuator parts, sensor mounts and precision housings.

Communication and SATCOM

RF housings, antenna structures, terminal brackets and shielding components.

Industrial Automation

Fixtures, machine components, mounting plates and custom tooling.

Electronics

Heat sinks, enclosures, connectors, plates and shielding parts.

Medical Equipment

Prototype components, device housings, fixtures and precision metal parts where requirements are confirmed by drawing.

Aerospace

Engineering prototypes, lightweight structures and precision components with project-specific documentation requirements reviewed before quotation.

Prototype to Low-Volume Production

Rapid Prototyping

1-20 Parts

Suitable for design validation, functional testing, engineering samples and early project review.

Low-Volume Production

20-500+ Parts

Suitable for bridge production, repeated small-batch orders and controlled production ramp-up.

Large Part Machining Design Guidelines

Machine EnvelopeDo not assume maximum size; submit drawings so machine envelope and workholding can be confirmed.
FlatnessApply tight flatness only to functional surfaces where assembly requires it.
Material StressLarge plates may move after machining, especially when material stress or heavy pocketing is involved.
Datum SchemeDefine primary datums and inspection points clearly for large parts.
WeightPart weight affects handling, fixturing, packaging and shipping cost.
Wall ThicknessThin large walls or ribs can vibrate or deform during machining.
FinishingLarge anodized or painted parts need cosmetic surface and masking notes.
PackagingProtect flat surfaces, edges, threads and cosmetic faces during shipment.

FAQ

What counts as large part CNC machining?

Large part machining refers to plates, housings, frames or fixtures where size, weight, flatness, workholding and inspection become important quoting factors.

What is JADMAKE's maximum CNC part size?

Maximum part size must be confirmed with the drawing, machine envelope, workholding method and inspection plan before quotation.

Can large aluminum plates be CNC machined?

Yes. Large aluminum plates can be reviewed for material stress, flatness, pocketing, datum strategy and finishing requirements.

Why is flatness difficult on large CNC parts?

Flatness can be affected by material stress, part size, pocketing, clamping, machining sequence and inspection method.

What should I include in a large part RFQ?

Send CAD files, 2D drawings, material, quantity, overall size, weight if known, flatness, finish, critical surfaces and packaging needs.

Can large parts be surface finished?

Surface finishing can be reviewed by material, part size, cosmetic requirements, masking and supplier capability.

Ready to Start Your Large Part Machining Project?

Upload your drawings and CAD files. Our engineering team will review your project and provide a quotation with machining recommendations.

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