CNCALPARTS
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Aluminum Alloys · High Strength

7000 Series Aluminum

CNCALPARTS machines 7000 series aluminum alloys for high-strength structural, aerospace, robotics, and industrial automation components. Zinc-alloyed grades such as 7075, 7050, and 7021 deliver exceptional strength-to-weight performance, and because we work with aluminum only, our tooling, cutting parameters, workholding, and heat control are tuned specifically for these demanding materials.

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  • ±0.01 mm Precision tolerance
  • 3 / 4 / 5-Axis Milling & turning
  • 1 – 500+ pcs Prototype to production

7000 Series at a Glance

Zinc-bearing aluminum grades engineered for maximum strength and fatigue resistance.

Common grades
7075, 7050, 7021
Key property
High strength-to-weight
Typical parts
Structural, housings, mounts
Finishes
Anodizing, bead blasting
Inspection
CMM, FAIR, dimensional report
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Why Machine 7000 Series Aluminum?

The 7000 series is the strongest family of aluminum alloys, with zinc as the primary alloying element. Grades like 7075 and 7050 reach tensile strengths that approach some steels while keeping aluminum's low weight, making them a natural fit for structural and load-bearing components where every gram matters.

These alloys are also less forgiving to machine than 6061. They require controlled cutting conditions, rigid workholding, effective chip evacuation, and careful heat management to prevent distortion and maintain surface integrity. At CNCALPARTS, this is the material category we handle every day.

High Strength

Excellent strength-to-weight ratio for brackets, frames, housings, and structural components that must resist load and fatigue.

Tight Tolerance Machining

Precision down to ±0.01 mm with flatness and parallelism controlled to 0.02 mm for demanding mating and assembly features.

Anodizing Ready

Surface preparation, dimensional allowance, and cosmetic handling planned for clear, black, color, and hard anodizing.

Thin-Wall & Deep Pocket

Deformation control strategies for thin walls down to 0.5 mm and deep cavities that release internal stress during machining.

Multi-Axis Capability

3-axis, 4-axis, and 5-axis milling plus turn-mill machining for complex geometry and multi-sided features in one setup.

Aluminum Only Focus

We machine aluminum. Only aluminum. That single-material focus sharpens tooling, workholding, and process consistency.

7000 Series Alloys We Machine

Each 7000 series grade has its own balance of strength, toughness, corrosion resistance, and machinability. Browse the articles below to compare alloys, applications, and machining considerations, or send your drawing and we will recommend the right grade for your part.

Attribute Aluminum 7075 Aluminum 7050 Aluminum 7021
Material Aluminum Alloy 7075 Aluminum Alloy 7050 Aluminum Alloy 7021
Process CNC milling, turning, 5-axis CNC milling, turning, 5-axis CNC milling, turning
Applications Aerospace, robotics, molds, high-stress parts Aerospace structures, automation, industrial equipment Structural components, frames, general engineering
Lead Time Prototype 3–7 days; production by schedule Prototype 3–7 days; production by schedule Prototype 3–7 days; production by schedule
Quote Request quote Request quote Request quote

Lead times depend on quantity, geometry, finish, and inspection requirements. Contact CNCALPARTS for a project-specific schedule.

Focused on Aluminum. Only Aluminum.

CNCALPARTS is a precision CNC machining company based in Shenzhen, China, specializing exclusively in custom aluminum parts. Because 7000 series alloys behave differently from softer grades, that single-material focus matters: we understand tooling selection, cutting parameters, workholding, deformation control, surface finish, dimensional accuracy, and anodizing preparation for high-strength aluminum.

From prototypes to production parts, we manufacture aluminum housings, enclosures, heat sinks, brackets, plates, structural components, precision turned parts, and complex 5-axis components for customers worldwide.

We machine aluminum. Only aluminum.

If you also need steel, stainless, brass, or titanium, we will tell you honestly that it is outside our focus. For aluminum, it means deeper process knowledge on every order.

Prototype to Production

Quantities from 1–10 pcs for prototypes, 10–500 pcs for low volume, and 500+ pcs for recurring batch production.

Quality Control

CMM, height gauges, micrometers, calipers, thread gauges, and surface roughness testers, with dimensional and first article reports.

Surface Finishing

As machined, bead blasting, brushing, polishing, powder coating, chromate conversion, and clear, black, color, or hard anodizing.

Drawing Support

STEP, STP, SLDPRT, IGES, X_T, DWG, DXF, and PDF accepted. Send a 3D model plus a 2D drawing with tolerances for the fastest quote.

Explore 7000 Series Aluminum Articles

Browse our guides to individual 7000 series grades, including material properties, machinability, typical applications, finishing options, and production considerations. Each article is written for engineers and buyers sourcing custom aluminum CNC parts.

Get a Quote for 7000 Series Aluminum Parts

Send your 3D model and technical drawing to CNCALPARTS and our team will review tolerances, critical dimensions, surface requirements, and inspection needs before production. We support customers in robotics, automation, electronics, optics, industrial equipment, mobility, and other technology-driven industries.

  • Fast prototype turnaround for design evaluation
  • Stable setups and repeatability for low volume and batch production
  • Dimensional inspection and first article reports available on request
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Inquiry Form

Share your aluminum part requirements and we will respond with pricing, lead time, and manufacturing feedback.