CNC machining, sheet metal fabrication, casting and assembly of precision components with more than 40 materials and 20 processes.
Dongguan Harmony Machinery Technology Co., Ltd (Parts Partner Limited)
Dongguan (Dalingshan Town), China · Hong Kong · Germany (office for European customers)New on Amplifa
About PPL
Dongguan Harmony Machinery Technology Co., Ltd produces precision mechanical parts, made-to-order components and modular assemblies in Dongguan (China). The company, with headquarters Parts Partner Limited (PPL) in Hong Kong, offers one-stop services from design through manufacturing to assembly and inspection. The process range includes CNC milling (3-, 4- and 5-axis), CNC turning, grinding, EDM, laser cutting, sheet metal working, tube bending, investment casting, die casting, sand casting, heat treatment, surface treatment as well as assembly and jig and fixture building. Parts are manufactured from more than 40 materials, including aluminium, stainless steel, titanium, brass, copper and engineering plastics such as PEEK and POM. Tolerances down to 0.0002" are verified with Zeiss and Tesa coordinate measuring machines; the company is certified to ISO 9001:2015 and ISO 13485:2016. Customers come from industries such as electro-optics, medical technology, semiconductors, robotics, energy, valve and pump technology as well as automotive; an office in Germany serves European customers.
- Site
- 5 Dongguan City, Guangdong, China
- Processes
- CNC Milling (3-axis, 4-axis, 5-axis), CNC Turning (Turn turret lathe, Turning and milling), 5-Axis Machining Parts, Grinding (Surface, OG and IG grinding), EDM/Wire cut, Gear Hobbing, Welding (MIG, ARC, spot, friction welding), Turret NC Punch
- Materials
- Aluminum, Brass, Bronze, Cast Iron, Copper, Stainless Steel, Steel Alloy, Titanium
- Certificates
- ISO 9001:2015, ISO 13485:2016, FAI / IPQC / FQC / OQC
- Industries
- Electro-optics, Medical technology, Semiconductors, Robotics, Precision instruments, Automation
- 01
Design/Engineering
- 02
CNC manufacturing (milling, turning, grinding, EDM)
- 03
Casting/Sheet metal fabrication
- 04
Heat and surface treatment
- 05
Assembly
- 06
Inspection (FAI, IPQC, FQC, OQC)
Locations
Dongguan (Dalingshan Town)
CNProduction plant
- Materials
- Aluminium, brass, bronze, cast iron, copper, stainless steel, steel alloy, titanium, zinc, engineering plastics
- CNC milling machines (3/4/5-axis)
- CNC lathes
- Grinding machines
- EDM/Wire EDM
- Laser cutting machine
- NC press brake and punching machines
- Zeiss CMM
- Tesa CMM
- Mitutoyo/Trimos height gauges
- 2D measuring devices
- Zero-point and self-centering chucks
- ERP/MES system
Hong Kong
HKHeadquarters Parts Partner Limited (PPL)
Germany
DEOffice for European customers
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC Milling (3-axis, 4-axis, 5-axis)Machining | – | – | – | – | Aluminium, Brass, Bronze, Cast iron, Copper, Stainless steel, Steel alloy, Titanium, Zinc |
| CNC Turning (Turn turret lathe, Turning and milling)Machining | – | – | – | – | Aluminium, Brass, Bronze, Cast iron, Copper, Stainless steel, Steel alloy, Titanium, Zinc |
| 5-Axis Machining PartsMachining | 0.0002" | – | – | – | – |
| Grinding (Surface, OG and IG grinding)Machining | – | – | – | – | – |
| EDM/Wire cutMachining | – | – | – | – | – |
| Gear HobbingMachining | – | – | – | – | – |
| Welding (MIG, ARC, spot, friction welding)Joining | – | – | – | – | – |
| Turret NC PunchForming | – | – | – | – | – |
| Laser CuttingMachining | – | – | – | – | – |
| NC BendingForming | – | – | – | – | – |
| Tube Bending (Bending Tubes)Forming | – | – | – | – | – |
| Press Forming (Cold and hot forming)Forming | – | – | – | – | – |
| Sheet Metal FabricationForming | – | – | – | – | – |
| Die castingCasting | – | – | – | – | Aluminium, Zinc |
| Lost Wax CastingCasting | – | – | – | – | Steel alloy, Stainless steel |
| Sand castingCasting | – | – | – | – | Cast iron |
| Assembly (On-site installation, sub-assembly, equipment built)Assembly | – | – | – | – | – |
| Jig and FixtureAssembly | – | – | – | – | – |
| Laser MarkingSurface | – | – | – | – | – |
| Bead BlastingSurface | – | – | – | – | – |
| PolishingSurface | – | – | – | – | – |
| Silk-screenSurface | – | – | – | – | – |
| Painting (Powder coating, Teflon coating)Surface | – | – | – | – | – |
| Anodizing (Gold, black, blue, natural, hard anodize)Surface | – | – | – | – | Aluminium |
| Cleaning (Class 100 chemical cleaning)Surface | – | – | – | – | – |
| Heat Treatment (Case harden, vacuum harden, nitriding, high frequency)Heat treatment | – | – | – | – | Steel alloy |
| Testing / Quality inspection (IQC, FAI, IPQC, FQC, OQC)Testing | 0.0002" | – | – | – | – |
| One-stop services from design, manufacturing, assembly to testingEngineering | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Zeiss CMM (coordinate measuring machine) | Zeiss | – | – | – | Dongguan, China |
| Tesa CMM (coordinate measuring machine) | Tesa | – | – | – | Dongguan, China |
| Height Gauge | Mitutoyo | – | – | – | Dongguan, China |
| Height Gauge | Trimos | – | – | – | Dongguan, China |
| 2D measuring devices | – | – | – | – | Dongguan, China |
| Zero-point chuck and self-centered chuck | – | – | – | – | Dongguan, China |
Additional services
Quality Assurance
Quality is ensured through defined processes across all production stages: first article inspection (FAI), in-process quality control (IPQC) as well as final and outgoing quality control (FQC, OQC). Zeiss and Tesa coordinate measuring machines, height gauges from Mitutoyo and Trimos as well as 2D measuring devices are regularly calibrated by third parties; orders are handled via ERP/MES.
| Evidence | Dongguan (Dalingshan Town) |
|---|---|
| ISO 9001:2015 | |
| ISO 13485:2016 | |
| FAI / IPQC / FQC / OQC |
History
- ca. 2008
Start of precision machining; Parts Partner Limited has been offering CNC machining for over a decade.
- 2023
Introduction of proprietary zero-point chucks and self-centering chucks.
- 2025
Average on-time delivery (OTD) of 98.5%.