Our Machining Projects

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-Custom parts from your drawings, no MOQ.

-End-to-end service: sourcing, machining, finishing & QC.

-Streamlined process = on-time delivery, every time.

CNC Machining of Aluminum 7075-T6 Bicycle Chainrings

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CNC machined bicycle chainring made of Aluminum 7075-T6 with 44 teeth and hard anodized finish.

A client commissioned us to manufacture a custom CNC machined 44-tooth bicycle chainring from 7075-T6 aluminum, designed for a high-performance off-road bicycle. The primary engineering objective was to significantly reduce the weight of the component compared to the stock steel part, without compromising its torsional rigidity and load-bearing capacity under extreme riding conditions.

We processed the 7075-T6 aluminum alloy via multi-axis CNC milling. The design includes extensive hollowing to remove excess material while maintaining a strong, rigid structure. Critical features, including the precision tooth profile and mounting hole interfaces, were machined to strict tolerances to ensure smooth chain engagement and accurate alignment within the drivetrain. Finally, the CNC bike component was treated with a hard anodized finish, providing excellent wear resistance and enhanced surface durability for demanding off-road environments.

Project Details

Part type: Custom CNC Machining Bicycle Chainring

Material: Aluminum 7075-T6

Surface Finish: Black Anodizing

Quantity: 206 pcs

Lead Time: 39 day

Your Partner for Custom CNC Bicycle Parts

As a specialized manufacturing facility, we offer comprehensive services for custom CNC bicycle parts across a range of categories. In addition to swingarms, our production capabilities include high-precision components such as chainrings, brake levers, suspension linkages, and pedal bodies. We recognize that in the bicycle aftermarket, every gram and every millimeter matters, so we focus on delivering parts that balance weight and strength. All parts undergo rigorous quality control, including dimensional inspection and material testing, to ensure consistent performance and reliability.

Free Quote & Design Review

We provide custom CNC machining services for low-volume production and Rapid Prototyping for design verification.  Click Here to Upload Your CAD Files

Our Manufacturing Capabilities

5-axis CNC milling machine cutting an aluminum block during the manufacturing process.

Capabilities include 3-Axis, 4-Axis, and 5-Axis CNC Milling, as well as CNC Turning operations. Standard materials processed include Aluminum alloys, Stainless Steel, Titanium, etc. and Engineering Plastics. Available secondary operations include Anodizing, Powder Coating, Bead Blasting, and Laser Engraving.

Capacity supports requirements ranging from single-unit Rapid Prototyping to Low-Volume Production runs (1-1,000+ units).

Factory Quality Assurance

Coordinate Measuring Machine (CMM) inspecting the dimensional accuracy of a custom CNC machined part.

A standardized Quality Management System (QMS) is applied to all manufacturing orders, regardless of part complexity or production volume. The following inspection stages are mandatory for every CNC machining project:

  • Material Verification: Raw material certification (chemical composition and mechanical properties) is verified upon receipt to ensure compliance with material specifications.

  • First Article Inspection (FAI): The first unit from any production run undergoes a full dimensional report to validate the machining setup and programming before volume processing begins.

  • In-Process Monitoring: Periodic checks are conducted during the machining cycle to monitor tool wear and ensure dimensional consistency is maintained throughout the batch.

  • Final Inspection: Completed components undergo a final dimensional and cosmetic verification using CMM (Coordinate Measuring Machine) and calibrated manual instruments prior to packaging.

Order Fulfillment Process

Finished CNC machined components securely packaged in custom foam inserts for global shipping.

From CAD to part.

Step 1: Upload & Quote

Upload your CAD files (STEP/IGES) to our secure platform. Receive a detailed online CNC quote and lead time estimate within 24 hours.

Step 2: Free DFM Review

Our engineers conduct a Design for Manufacturability (DFM) analysis to optimize your design for rapid machining and reduce costs.

Step 3: Precision Machining

We ensure your custom CNC parts meet strict tolerance requirements.

Step 4: Quality Control

Every part undergoes rigorous inspection before leaving our factory to ensure it matches your specifications perfectly.

Step 5: Fast Delivery

We partner with DHL/FedEx for global express shipping. Get your CNC prototypes delivered to your door in as fast as 3 days.

FAQs About CNC Machining Services

No. We support projects of all sizes, from a single prototype unit to low-volume production runs.

Standard lead times are typically 10–15 business days. Expedited services (Rapid Prototyping) can be completed in as little as 3–5 business days, depending on part complexity and material availability.

In most cases, we source materials from our approved suppliers to ensure quality control. However, we can machine customer-supplied materials for specialized alloys or specific requirements upon engineering review.

Unless otherwise specified, our general tolerance standard is ISO 2768-m (±0.125 mm) for metals and ±0.25 mm for plastics. Precision tolerances ±0.005 mm are achievable but must be explicitly stated in 2D technical drawings.

Our facility can accommodate parts up to 4000 x 1500 x 600 mm for milling and Ø200 mm x 500 mm for turning.

Yes. We can install inserts (e.g., Helicoils, PEM fasteners) and perform basic mechanical assembly of machined components prior to shipment.

To provide an accurate quote, we require a 3D CAD file (STEP, IGES, or X_T format). If the part has threaded holes, tight tolerances, or specific surface finish requirements, a 2D PDF drawing must also be provided.

We take IP protection seriously. All files are stored securely, and we are willing to sign a Non-Disclosure Agreement (NDA) prior to receiving your data.

Yes. We can provide material certificates (COA) and dimensional inspection reports upon request. Please specify this requirement when placing your order.

We ship globally using major carriers (DHL, FedEx, UPS). Shipping terms are typically Ex Works (EXW) or DAP, depending on the agreement.

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On-Demand CNC Machining

  • Secure file upload. NDA compliant.

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