Large CNc Parts done right

Large CNC Machining Services

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Delivering large CNC parts and assemblies up to 34 feet long with industry-leading tolerances and lead times as fast as 10 days.

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ISO 9001:2015  Certified QMS

ASME, ASTM, MIL, and AWS Standards

High Repeatability, Precision, QA, & Compliance

Gantry CMM, 3D Scanning, & Non-Destructive Testing

Hardware Installation & Large Parts Assembly

Climate Controlled Machining Facilities

Precision Machining for Large CNC Parts

CNC parts up to 34 feet long at tolerances as tight as 0.007 in—10X tighter than competitors.

Precision grinding to meet tolerances as low as 0.1mm cylindricity, 0.5mm parallelism, 0.1deg angularity, 10μm runout. Enables finishing critical dimensions.

Production CNC Parts as Fast as 10 Days

Flexible production, lead times as fast as 10 days, and lowest landed cost with our 4-region global sourcing network. 

Your Critical Dimensions Verified

Gantry CMMs up to 2500 x 5000 x 1800 mm, 3D scanning, surface roughness testers, and non-destructive testing to verify every dimension. Nadcap certified NDT.

Built to Spec Every Time

Requirements met per 2D drawings, including special finishes, post-processing, insert installation, and assembly. 

Global Supply Chain &
Logistics Support

Access full-service CNC machining, processing, welding, assembly, and finishing, all with one partner. 

Large CNC Machining Capabilities

Large CNC Milling

Live tooling, palletized loading, robotic tending

Tolerances as tight as 0.0005mm—or as tight as 0.2mm over a 2m span

Large CNC Turning

Up to 30 tools, high rigidity

Tolerances as tight as 0.01mm

Material Handling and Inspection

Hoist systems, pallet systems, gantry-style CMMs, non-destructive testing, overhead crane system up to 60 tons

Secondary Finishing

CNC jig boring, robotic laser, cladding, grinding, honing, straightening, heat treatment

Dimensions Table

CNC Process Max Length (mm) Max Width (mm) Max Height (mm) Max Diameter (mm)
Large CNC Mill 10,500 3,700 1,200 -
Large Horizontal
CNC Lathe
10,500 - - 2,500
Large Vertical
CNC Lathe
1,600 - - 2,500
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Master GD&T for Large Parts

Our Intro to GD&T eBook offers clear, practical guidance to help you convey design intent with precision.

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Large CNC Machining Materials

A2 Tool Steel

ABS

Acrylic

Aluminum

Copper

Delrin

Stainless Steel

A2 Tool Steel

Tool Steel has excellent wear resistance and toughness, commonly used to make fixtures, tools, tool holders, gauges, and punches.

Mill Lead Time:
As fast as 7 days
Finishing Options:
Media Blasting, Vibratory Tumbling, Black Oxide, Powdercoating
*For materials not shown here, please contact us directly.

Get the Essential CNC Design Guide

Learn how to reduce costs, simplify the design for machining process, and achieve high-quality results with CNC machining.

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Finishing Options for Large CNC Machining

Name Applicable Materials Colors Can Be Applied with
Chem film or Alodine™ Aluminum Clear, gold Media Blasting, Tumbling, Type II Anodizing* Type III Anodizing with PTFE*
Anodizing Aluminum Clear, black, grey, red, blue, gold Media Blasting, Tumbling, Alodine*
Black Oxide Steel, Stainless Steel Black Media Blasting, Tumbling, Passivation
Electroless Nickel Plating Aluminum, Steel, Stainless Steel
Electropolishing Steel, Stainless Steel
Hand Polishing Acrylic Enhanced Cosmetic Appearance
Media Blasting Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper All post processes, except Electropolish and Powder Coat
Nickel Plating Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper Media Blasting, Tumbling
Passivation Steel, Stainless Steel Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting
Powder Coating Services Aluminum, Steel, Stainless Steel Black (20% or 90% gloss), White (20% or 90% gloss)
Tumbling Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper All post processes, except Electropolish and Powder Coat
Vapor Polishing CNC Polycarbonate (Clear, Black) Enhanced Cosmetic Appearance, Near Optically Clear Applications
Zinc Plating Steel, Stainless Steel Clear (light blue coating). Black (glossy black coating). Media Blasting, Tumbling, Passivation
*Additional finishing options include chromic acid anodizing, cadmium plating, copper plating, titanium anodizing (blue anodizing), gold plating, silver plating, and more. For materials not listed here, please contact us directly.
Struggling to find the best material for your parts? Try  Materials.AI.
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Large CNC Parts Machined by Fictiv

Why Fictiv for Large CNC Parts?

Only Fictiv delivers CNC parts up to 34 feet long with industry-leading precision, backed by end-to-end supply chain management to simplify sourcing at every stage.

Fictiv’s global manufacturing network enables production of high-volume, large CNC parts without excess lead time. The competition may have one or two large machines, whereas Fictiv has dozens.

Tighter Tolerances

CNC parts at tolerances as tight as 0.007”—10X tighter than competitors.

Large CNC Capabilities

7+ CNC processes including large milling, turning, jig boring, and more. Table weight capacity up to 20,000 kg.

Processing & Assembly

Services include grinding, honing, straightening, heat treatment, welding, finishing, and assembly.

Accuracy & Inspection

Gantry CMMs, 3D scanning, and non-destructive testing to verify every dimension.

Compliance & Quality Control

ASME, ASTM, AWS (17.1), and military specifications under an ISO 9001:2015-certified QMS.

Global Supply Chain & Logistics

Flexible production, fast lead times, and lowest landed cost with our 4-region global sourcing network.

Industry Applications
Large, precision-machined parts and assemblies engineered to meet the
toughest industry requirements.
Robotics
Robotics

Engine components, transmission parts, and other precision parts that require mass production.

Heavy Equipment

Oversized parts for tractors, construction equipment, and mining machinery, including frames, booms, housings, brackets, and more.

ClimateTech

Renewable energy components like wind turbine hubs, frames, turbine blades, energy storage housings, and more.

Aerospace

Satellite structural components, fuselage frames, engine mounts, landing gear assemblies, and more.

Industrial Machinery

Large components for processing, packaging, conveying, steel and plastic processing, fluid power systems, and more. 

Oil & Gas

Heavy-duty components for oil drilling, pipeline systems, subsea equipment, structural support assemblies, and more.

Success Story

How Heliospace Cut Lead Times by 90%

Fictiv’s CNC machining cut lead times from 18 weeks to just two weeks for complex aerospace parts, helping Heliospace win key contracts.

Read Case Study

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