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Custom Part Manufacturing Services In China

Focus on Rapid Prototypes & Low-Volume Production for Plastic and Metal Components. Trusted by Aerospace, Electronics, Bicycle, and Startups.

24H
Quote Turnaround
3 Days
Fastest Lead Time
1-10,000
Parts On Demand
No MOQ
Minimum Order
CNC Milled Part

About PKAI

Founded in 2014, PKAI is a China-based machine shop specializing in custom flexible manufacturing. We focus on providing precision machine parts from prototype to production with affordable pricing and rapid turnaround.

Our two CNC workshops in Dongguan cover 3,000 square feet and are equipped with 74 sets of CNC machines. With 39 skilled employees, we deliver high-quality parts for industries including aerospace, electronics, bicycles, and startups.

Headquarters

No.13, Zaokeng Street, Dongguan City, Guangdong, 523838, China

Established

2014

CNC Machines

74 Sets In-House

Employees

39 Team Members

CNC Turned Parts CNC Wire EDM Knurling Part Precision Component

Our Core Capabilities

In-house manufacturing with 24/7 operations ensures rapid turnaround and consistent quality for all your custom part needs.

CNC Machining

Milling, turning, drilling, tapping, threading, and more. Tight tolerances down to +/-0.005mm.

Injection Molding

High-precision plastic parts with excellent surface finish. Ideal for low to mid-volume production.

Die Casting

Durable metal components with complex geometries. Suitable for aluminum, zinc, and magnesium alloys.

Sheet Metal

Laser cutting, bending, welding, and finishing for enclosures, brackets, and structural parts.

Our Product Portfolio

High-precision machined parts for aerospace, electronics, bicycles, and startups. All parts are ISO-compliant with CMM inspection and FAI reports available.

CNC Milled Aluminum Part

CNC Milled Aluminum Part

Precision-machined aerospace component with tight tolerances and anodized finish.

  • Material: 6061-T6 Aluminum
  • Tolerance: ±0.05mm
  • Finish: Anodized Black
  • Volume: 500 pcs/month
CNC Turned Steel Shaft

CNC Turned Steel Shaft

High-strength shaft for industrial motor applications with polished finish.

  • Material: 4140 Steel
  • Tolerance: ±0.02mm
  • Finish: Polished
  • Volume: 1,200 pcs/batch
Wire EDM Mold Insert

Wire EDM Mold Insert

Complex geometry mold insert for plastic injection with mirror finish.

  • Material: SKD11 Tool Steel
  • Tolerance: ±0.005mm
  • Finish: Mirror Polish
  • Volume: Prototype & Low-Volume
Knurled Brass Fitting

Knurled Brass Fitting

Threaded brass component with diamond knurling for grip and aesthetic.

  • Material: C3604 Brass
  • Tolerance: ±0.03mm
  • Finish: As-Machined + Knurl
  • Volume: 3,000 pcs
Precision Encoder Housing

Precision Encoder Housing

Aluminum housing for optical encoder with tight sealing requirements.

  • Material: 7075-T6 Aluminum
  • Tolerance: ±0.04mm
  • Finish: Anodized Clear
  • Volume: 800 pcs
Stainless Steel Valve Body

Stainless Steel Valve Body

CNC-machined valve body for fluid control systems with NPT threads.

  • Material: 316 Stainless Steel
  • Tolerance: ±0.06mm
  • Finish: Passivated
  • Volume: 600 pcs
Medical Instrument Shaft

Medical Instrument Shaft

High-precision shaft for surgical tools with strict biocompatibility.

  • Material: 304 Stainless Steel
  • Tolerance: ±0.01mm
  • Finish: Electropolished
  • Volume: 200 pcs (Prototype)
Drone Frame Component

Drone Frame Component

Lightweight aluminum part for UAV with complex 3D geometry.

  • Material: 7075 Aluminum
  • Tolerance: ±0.05mm
  • Finish: Bead Blast + Anodized
  • Volume: 1,500 pcs

Why Choose PKAI?

We combine advanced technology, skilled craftsmanship, and customer-focused service to deliver exceptional manufacturing results.

Excellent Quality

Advanced facility and 100% part inspection guarantee high quality. ISO-compliant processes, CMM inspection, and FAI reports available.

Quick Response

Small size enables us to react quickly and give personal attention to clients. Quotes delivered within 24 hours.

Rapid Turnaround

24/7 factory operation ensures the best lead times. As fast as 3 days for prototypes.

Broad Experience

Highly skilled engineers and machinists with rich experience in aerospace, electronics, bicycles, and startups.

2014
Founded
74
CNC Machines
3,000+
Finished Parts
39
Employees

Frequently Asked Questions

What materials can you machine?

We work with all kinds of metal and plastic materials including aluminum, steel, stainless steel, brass, copper, titanium, and engineering plastics like PEEK, Delrin, and nylon.

What is your standard tolerance?

Our standard tolerance is +/- 0.1 mm. Tighter tolerances down to +/- 0.005 mm are available upon request.

Do you have a minimum order quantity (MOQ)?

No, we have no MOQ. We can produce from 1 to 10,000 pieces based on your needs.

How fast can you deliver?

We offer rapid turnaround with prototypes as fast as 3 days. Production parts typically ship within 7-15 days depending on complexity and volume.

What surface finishes do you offer?

We offer as-machined, smooth, polish, anodizing (clear, black, colored), plating (nickel, zinc, chrome), powder coating, and more.

Let’s Discuss Your Project

Ready to bring your idea to life? Contact us today for a free quote and expert manufacturing advice.

Phone

(+86) 15384264303

Email

pkai.rapid@gmail.com

Address

No.13, Zaokeng Street, Dongguan City, Guangdong, 523838, China

Visit Official Website to Contact

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