CNC Customized Solutions. Quality Guaranteed Your CNC expert, one-stop solution.
We are a professional CNC machining manufacturer with advanced equipment and exquisite craftsmanship. We provide one-stop service and can quickly and efficiently produce a variety of high-precision metal and plastic parts to meet your various needs from prototyping to mass production.
Our CNC Machining Services
About HKAA
Established in 1998, covering an area of over 15,000 square meters. HKAA has more than 26 years of experience and specializes in providing CNC milling and turning services for industries such as power transmission, bearings, industrial, automotive, medical, and aerospace.
Our Headquartered in Dongguan, China, with branches in Guizhou and Hong Kong, we are strategically positioned to respond rapidly to the needs of our global clients. Backed by rich resources and a dedicated team of over 150 experts, we offer comprehensive one-stop solutions and customized services, ensuring that clients can access all necessary services on HKAA, significantly enhancing efficiency and reducing costs.
Why Choose HKAA?

Industry Experience
More than 26 years of industry experience, with a mature quotation system, providing technical consultation, pre-examination drawings, structural analysis and other services.

Personalized Production
Equipped with more than 200 automatic CNC machining centers, aswell as the industry's top CNC equipment such as MAZAK GROB GF,to support the production of various non-standard products to meet the production needs of different customers.

One-stop Service
With precision mold design and manufacturing, product precision metal parts or plastic parts, surface treatment, component assembly capabilities, with multiple materials, multiple processes, multiple equipment and other advantages, providing one-stop service.

Delivery Guarantee
Formulate production plans, strictly control production progress, and arrange special personnel to follow up from order confirmation to shipment.

Quality Control
Equipped with multiple sets of three-coordinate high-end testing equipment, strictly controls the quality of products, and almost harsh requirements for the quality of the products to meet the set standards.

Perfect Quality Management System
HKAA has passed ISO9001, IATF16949, AS9100D, IS013485 quality management systems, and has reached internationally recognized standards in product quality, production process control, customer satisfaction, etc.
How To Start
Demand Communication
Communicate with customers in detail about processing requirements, including materials, dimensions, precision, surface treatment, etc.
Request For Quotation
Provide detailed quotations according to customer needs, including product unit price, mold fees, freight, etc.
Signing A Contract
Both parties sign a PI contract based on the confirmed drawings, quotations and delivery dates.
Arrange Production
Arrange production plans according to the contract, determine the processing sequence, select appropriate machine tools and tools, purchase raw materials, and prepare for processing.
Production Process Monitoring
We will conduct strict quality monitoring during the production process and regularly feedback production progress to customers.
Product Inspection And Packaging
After the product is processed, it will be strictly inspected to ensure that the product meets the contract requirements. Qualified products are packaged and ready for shipment.
Shipping And Acceptance
Provide quotations for different shipping methods to customers, and customers will inspect the products and sign for them after confirmation.
After-Sales Service
We provide comprehensive after-sales service. If there are quality problems with the product, please contact us in time and we will provide solutions immediately.
The Ability To Customize is Extremely Powerful
Personnel to seek the truth and pragmatic attitude, the spirit of excellence, all the details, harsh hone, all the products have been tempered, strict control.
100+ Materials Can Be Freely Selected Metals
Select the ideal metal for your project’s success by understanding its unique characteristics.
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Industries We Serve
With 20 years of machining expertise under our belt, we’ve catered to a broad spectrum of sectors including medical, robotics, consumer goods, automotive, aerospace, defense, marine, green energy, and industrial, among others.
HKAA Everyday Share

CNC Machining Cost Factors: What Affects the Price of Custom Parts?
CNC machining cost factors include material selection, part complexity, machining time, tolerances, surface finish, quantity, fixture requirements, inspection needs, and delivery schedule. For custom CNC parts, the price is not based only on size or weight. A small part with tight tolerances, difficult materials, deep features, and complex finishing can cost more than a larger but simpler component. For buyers, understanding CNC machining price factors helps avoid unclear quotations, unnecessary design cost, and production delays. It also helps engineers and procurement teams make better decisions before sending drawings to suppliers. When sourcing custom CNC parts, the goal should not be to choose the lowest price

CNC Machining for Plastic Parts: Materials, Tolerances and Use Cases
Plastic CNC machining is suitable for prototypes, low-volume parts, functional components, jigs, fixtures, and engineering plastic parts that require accurate dimensions without mold tooling. Compared with injection molding, CNC machining is often more flexible when the quantity is low, the design is still changing, or the part needs to be made from a specific engineering plastic such as POM, PEEK, ABS, Nylon, PTFE, PP, or acrylic. For B2B buyers, plastic CNC machining is not just a substitute for metal machining. Plastic materials behave differently during cutting, clamping, cooling, and inspection. Material selection, wall thickness, tolerance planning, tool sharpness, heat control, and fixture design all affect

CNC Surface Finish Options for Aluminum and Stainless Steel Parts
CNC surface finish should be selected based on part function, material, appearance, corrosion resistance, wear resistance, dimensional requirements, and cost. For aluminum CNC parts, common options include as-machined finish, anodizing, hardcoat anodizing, bead blasting, polishing, painting, and powder coating. For stainless steel CNC parts, buyers often consider as-machined finish, polishing, brushing, passivation, bead blasting, and plating depending on the application. Surface finish is not only a cosmetic decision. It can affect assembly fit, friction, sealing performance, corrosion resistance, electrical behavior, coating adhesion, and long-term durability. For custom CNC machined parts, choosing the wrong finish can increase cost, delay delivery, or create quality problems after machining.