Since its inception, Ganggu has focused on the development and manufacturing of high-quality hardware fasteners and precision CNC machining services.

Aluminum Stainless Steel CNC Parts, Custom OEM Machining 1

Aluminum Stainless Steel CNC Parts, Custom OEM Machining 2

Aluminum Stainless Steel CNC Parts, Custom OEM Machining 3

Aluminum Stainless Steel CNC Parts, Custom OEM Machining 4

Aluminum Stainless Steel CNC Parts, Custom OEM Machining 5

Aluminum Stainless Steel CNC Parts, Custom OEM Machining

Our custom CNC machined metal parts service produces precision components for OEM, machinery, automation, maintenance and product development. The pictured range includes shafts, sleeves, flanges, rings, gears, bushings, housings, threaded parts and multi-feature components. We provide a CNC machining service for aluminum and stainless steel, plus brass, steel, plastic and other specified materials. For buyers seeking custom CNC turning and milling parts, we support drawing review, prototypes, small batches, inspection and repeat supply.

Brand name:

GANGGU

MOQ:

Package:

support customized

Place of origin:

China

OEM&ODM:

Quality guarantee:

After-sales service:

Finish:

support customized

Material:

support customized

Inquiry

Write a Review

Part Families We Manufacture

Part family	Visible or typical features	Suitable applications
Turned shafts	Steps, shoulders, grooves, threads and end details	Motion systems, transmission and replacement parts
Cylindrical sleeves	Internal bore, outside diameter and end faces	Spacers, guides, housings and assembly interfaces
Flanges and rings	Bolt holes, bores, locating steps and circular profiles	Mounting, adapters, seals and rotating assemblies
Bushings	Controlled bore, outer diameter and length	Bearings, pivots, sleeves and wear interfaces
Threaded components	Internal or external threads, hex sections and reliefs	Fittings, connectors and fastening systems
Gears and toothed parts	Teeth, hubs, bores and locating features	Drives, mechanisms and machinery prototypes
Hollow housings	Internal cavities, ports, bores and mounting holes	Sensors, instruments and industrial equipment
Custom blocks and brackets	Holes, pockets, flats, slots and irregular profiles	Fixtures, automation and equipment frames
Precision rings and collars	Circular seating, shoulders and radial holes	Retaining, alignment and positioning
Replacement components	Reverse-engineered or drawing-defined forms	Maintenance and spare-part programs

Materials and Finish Directions

The material image visibly identifies Aluminum, Brass, Steel and Plastic. Exact grades and conditions must be confirmed from the customer drawing or purchase specification.

Material direction	Typical characteristics	Example use
Aluminum	Lightweight and suitable for complex machining	Brackets, housings, covers and moving components
Stainless steel	Corrosion resistance and durable mechanical performance	Shafts, fittings, sleeves and exposed parts
Brass	Machinability, conductivity and distinctive appearance	Connectors, inserts, fittings and small turned parts
Steel	Strength and load-bearing potential	Pins, shafts, structural components and wear parts
Engineering plastic	Lightweight, insulation and application-specific performance	Bushings, guides, sleeves and non-conductive parts

Finish direction	Potential purpose	Confirmation required
As-machined	Functional metallic appearance	Surface roughness and visual standard
Polishing	Smoother and brighter appearance	Target appearance or sample
Brushing	Directional surface texture	Texture direction and grade
Anodizing	Color and surface protection for suitable aluminum	Alloy, color and coating requirement
Plating or coating	Appearance or corrosion-control requirement	Coating type and thickness
Passivation	Surface treatment direction for suitable stainless steel	Material grade and required standard

CNC Turning and Milling Scope

Process	What it produces	Buyer benefit
CNC turning	Shafts, pins, sleeves, rings, collars, bushings and threaded parts	Efficient for rotational geometries
CNC milling	Pockets, slots, flats, holes and irregular profiles	Adds non-rotational features
Combined turning and milling	Turned body plus holes, flats, pockets or mounting details	Reduces separate suppliers and assembly steps
Swiss-type turning	Small-diameter and slender precision components	Supports miniature or long slender parts
Drilling and boring	Through holes, blind holes, bores and counterbores	Supports shaft, bearing and fastener interfaces
Threading	Internal and external threads	Creates defined connections and adjustments
Grooving and chamfering	Relief grooves, retaining grooves and edge breaks	Improves fit, insertion and assembly
Gear-related machining	Teeth, hubs, bores and locating features	Supports transmission and mechanical prototypes

Drawing-Based Manufacturing Process

Step	Process	Output
1	Drawing or sample submission	Customer reference and application information
2	Engineering review	Geometry, material and key-feature review
3	DFM feedback	Manufacturability questions and improvement suggestions
4	Quotation	Project-based price and production plan
5	Prototype or first article	Physical part for fit and function confirmation
6	CNC turning/milling production	Parts made to the approved revision
7	Inspection	Dimensional, visual and specified feature checks
8	Surface treatment	Finish applied where required
9	Packing	Protective packing, labels and part identification
10	Delivery	Shipment according to the agreed project plan

Quality and Inspection Discussion

Quality requirements should be defined by the drawing, purchase order and inspection plan. The following controls can be discussed for the project:

Quality point	English description	Customer benefit
Drawing revision	Production follows the approved drawing version.	Reduces revision confusion.
Critical dimensions	Important fit and function dimensions are identified.	Focuses inspection on functional features.
Thread verification	Thread form and usable length are checked as specified.	Supports reliable assembly.
Bore and fit review	Internal diameter and mating relationship are confirmed.	Reduces fit-related rework.
Visual inspection	Burrs, damage and finish are reviewed.	Improves delivered appearance.
First article check	First part can be reviewed before repeat production.	Confirms design before batch work.
Batch consistency	Repeat parts are compared against the approved requirements.	Supports ongoing supply.

Customization Services

Custom item	What can be customized	Customer input
Geometry	Shafts, sleeves, flanges, rings, gears, housings, brackets and fittings	2D/3D drawing or sample
Dimensions	Diameter, length, bore, step, flange, hole and slot dimensions	Dimensioned drawing
Turning features	Threads, grooves, chamfers, shoulders and tapered features	Section views and thread callouts
Milling features	Pockets, flats, keyways, slots, holes and mounting faces	Datum and feature locations
Material	Aluminum, stainless steel, brass, steel, plastic or specified alternatives	Grade and application
Surface finish	Machined, polished, brushed, anodized, plated or coated finish	Finish sample or requirement
Marking	Part number, batch code, revision or logo where feasible	Artwork and location
Prototype quantity	One-piece prototype, sample batch or small production	Quantity and timing
Packaging	Bulk, individual, tray, label or customer-specific packing	Packing and label instructions
Repeat supply	Revision, inspection and packing control for repeat orders	Demand plan and order frequency

Applications

Industry or use	Example custom components	Typical requirement
Industrial machinery	Shafts, rings, bushings, housings and flanges	Load, fit and serviceability
Automation	Brackets, collars, guide parts and precision interfaces	Alignment and repeatability
Automotive systems	Turned pins, fittings, hubs and custom mounts	Durability and assembly fit
Electronics and instruments	Housings, rings, connectors and small turned parts	Interface and appearance
Medical equipment	Small mechanisms, sleeves, fittings and enclosures	Drawing control and material confirmation
Robotics	Lightweight brackets, shafts, joints and adapters	Motion, weight and connection
Repair and maintenance	Replacement shafts, bushings, rings and adapters	Sample matching and revision control
Product development	Functional prototypes and design-validation parts	Speed, fit and iteration

FAQ — Frequently Asked Questions

Q1. What are custom CNC machined metal parts?

They are metal components manufactured to a customer’s drawing, CAD file or approved sample. They may include shafts, sleeves, flanges, rings, gears, bushings, housings, fittings, brackets and other custom geometries.

Q2. Can you provide both CNC turning and milling?

Yes. The service can be reviewed for CNC turning, CNC milling or a combined route. The correct process depends on whether the part is mainly rotational or also requires pockets, slots, flats, holes and irregular profiles.

Q3. Can you machine aluminum and stainless steel parts?

Yes. The product direction specifically covers aluminum and stainless steel machining. Exact grades, material conditions, finishes and inspection requirements must be confirmed by the drawing.

Q4. Can you make custom CNC turned parts from a sample?

Sample-based development can be discussed. A drawing is recommended for critical dimensions, threads, material, tolerance, surface treatment and functional requirements.

Q5. What types of parts are suitable for CNC turning?

Shafts, pins, sleeves, bushings, collars, rings, flanges, threaded fittings and cylindrical housings are common turning-oriented forms. Additional milling features can be reviewed when needed.

Send your drawing or approved sample to discuss customized metal parts in aluminum, stainless steel, brass, steel or suitable engineering plastic. We can review CNC turning, milling, prototype production, surface finish, inspection and repeat-order requirements for your project.

Recommended

High Tolerance CNC Machining Services, ISO 9001 Certified Supplier

As a top-tier precision machined parts supplier, we support 3-day prototyping and 7-day batch delivery. Our in-house lab ensures 100% strict quality control, backed by ISO 9001/14001. We provide technical DFM feedback and manufacturing scale for global supply chains.

Custom CNC Milling Services, Machining Prototypes & Anodized Parts

Accelerate your product development with our comprehensive custom cnc milling services. Our facility is optimized for cnc machining prototypes, allowing for rapid iteration of complex housings, structural brackets, and intricate industrial components. We handle a vast range of materials, specializing in anodized cnc aluminum parts with vivid surface finishes, as well as precision-turned stainless steel rods and custom polymer components. Our capabilities include high-gloss mirror polishing and multi-part assembly fitment. Whether you need a single functional prototype or a bridge to mass production, we provide DFM feedback and 100% inspection to ensure every dimension matches your STEP/IGS files.

Custom Knurled Thumb Screws & Precision Turned Brass Parts, CNC OEM

Source hardware directly from a trusted precision turned components manufacturer. We produce custom knurled thumb screws and diverse brass cnc machining parts, including nozzles and standoffs. Using CNC lathes and Swiss technology, we achieve tight tolerances and intricate knurling patterns (straight or diamond). We also process stainless steel and aluminum into ball studs and turned fittings. Whether for prototypes or production, we offer ready stock and full customization. Nickel plating and passivation are available for longevity.

CNC Machining Prototype, Rapid Aluminum & Stainless Steel Parts

Our custom CNC machining prototype service supports engineers, product developers, maintenance teams and OEM buyers. Send a 2D/3D drawing or approved sample for geometry review and prototype planning. The images show threaded shafts, stepped pins, sleeves, flanges, bushings, housings, connectors and brackets.

This rapid prototyping CNC service produces CNC aluminum stainless steel parts for one-piece development, fit checks, functional testing, design verification and small batches. The image states 5–7 day prototyping, free DFM feedback, one-piece MOQ and 100% QC before shipping. Final grade, finish, tolerance and inspection documents are confirmed per project.

Send your inquiry

Feel free to contact with us

If you have any questions about our products or services, feel free to reach out to customer service team.