Shenzhen Ruiyihang Technology makes unique CNC Milled Plastic parts with surface finishes as smooth as Ra 1.6 μm and tolerances of ±0.05 mm. We've been specialising in engineering-driven manufacturing since 2008, letting you talk directly to skilled engineers who make your ideas easier to machine. From prototypes to mass production, our multi-axis CNC cutting can work with materials like POM, PEEK, PTFE, and Nylon. We offer fast response without lowering quality or accuracy. Samples are usually sent out in 7 days, and simple parts in 3 days.

For precise plastic cutting, you need more than just the right tools. It needs to be understood.
You don't talk to a sales team when you work with us. You talk to engineers who have worked in the field for more than 15 years immediately. Before production starts, they'll look over your plans, offer different materials, and help you avoid common design mistakes.
This method helps you save time and money. It also makes sure that your parts do what they're supposed to do.
Three- to five-axis machine tools are used in our CNC milling process. This means that we can use just one setup to make complicated shapes, tight pockets, and complex curves. With fewer sets, accuracy goes up and delivery times go down.
We cut a lot of different types of industrial plastics. Cutting forces affect different materials in different ways. The qualities of the material are taken into account when our team changes the toolpaths, speeds, and cooling methods. This keeps the dimensions stable during production and stops the material from deforming.

| Item | Specification |
|---|---|
| Material | POM, Nylon (PA66), PTFE, PEEK, PEI/ULTEM, ABS, PC, PMMA, HDPE, or per customer request |
| Process | CNC Milling / CNC Turning / CNC Machining |
| Surface Finish | Machined, Polished, Bead Blasted, or Sandblasted |
| Tolerance | ±0.05 mm (tighter tolerances available depending on material and geometry) |
| Surface Roughness | Ra 1.6 μm (varies by material and finish) |
| Size | Per Customer Drawing |
| Drawing Format | PDF / DWG / STEP / IGS |
| Production Volume | Prototype to Mass Production |
| Inspection | 100% Inspection / Sampling Inspection |
| Feature | Lightweight, chemical-resistant, excellent dimensional stability, customizable colors |
Plastic parts have special benefits that make them useful in current situations.
Because they're light, the total weight of the product is lower without losing any power. A lot of industrial plastics are better than metals at withstanding chemicals, oils, and harsh conditions. They are also very good at keeping electricity from moving and don't cause much friction.
Despite temperature changes, CNC Milled Plastic components retain their shape. Materials like PEEK and PEI work well in tough situations, like hospital settings and places with high temperatures.
With machining, you can make undercuts, internal threads, and accurate pockets, which you can't do with moulding. You are also not limited to a certain number of items you can buy. We'll help you with your project at every stage, whether you need 5 samples or 5,000 final parts.

First, we go over your drawings with you. Our engineers look for possible problems with the cutting and offer ways to make things better if they find any. You know exactly what to expect because this talk takes place before the quote.
Once you give us the go-ahead, we'll create toolpaths that work best with your plastic. The cutting settings are changed to keep heat from building up and stop the material from twisting. With multi-axis features, you don't have to adjust as often, which improves both accuracy and surface quality.
We keep an eye on important factors in real time during production. We know right away if changes need to be made. As part of the final review, precise measuring tools are used to check the dimensions and the surface is looked at visually.
If you report a quality problem within the same month, we'll remanufacture it within a week and pay for the shipping. That's our promise to be reliable.
Our product parts are used in many areas, including:
Every business has its own set of needs. Our tech team can help you choose the best material and style for your needs.

Q: What types of plastic are suitable for CNC milling?
We mill engineering plastics such as POM, Nylon, PTFE, PEI (ULTEM), PC, ABS, and PPS depending on application requirements.
Q: How do you prevent deformation during plastic milling?
We control cutting parameters, clamping methods, and heat generation to minimize deformation and maintain dimensional stability.
Q: Can CNC milling achieve tight tolerances in plastic parts?
Yes, we achieve ±0.05 mm generally, with tighter tolerances depending on material and geometry.
Let's discuss your requirements. Contact our engineering team at bill@bldmachining.com to get started with your custom CNC Milled Plastic components today.