Precision Machining
- CNC Machining Service
- CNC Milling
- CNC Turning
- Automatic Turning
- Machining Screw/Rivet
- Wire EDM Machining
- Casting & CNC
- Aluminum Profile & CNC
- Cold Heading & CNC
LML Metal Products Ltd.No. D309, Yunchuang E Valley, No. 3 Huanshi West Road, Tangxia Town, Dongguan City, Guangdong,China
(86) 17833674102dlynn9527@gmail.com
ALL PLASTICS
Over 20 different kinds of surface finishes for you. Make your part more corrosion resistant and aesthetical.
Home / All CNC Plastics
Our Available Plastics
We look forward to delivering high-quality products and professional services to meet your expectations and requirements.
| Image | Material | Key Grades | Key Properties | Typical Applications | Processability |
|---|---|---|---|---|---|
 | ABS | PA-757, PA-777 | High impact resistance, surface hardness | Appliance housings, auto dashboards | Good: Easy injection/extrusion |
 | FR4/G10 | FR4 (epoxy + glass) | High strength, insulation, heat resistant | PCB substrates, aerospace parts | Poor: Lamination only |
 | Nylon (PA) | PA6, PA66, PA12 | Wear resistance, self-lubricating | Gears, bearings, sportswear | Moderate: Drying required |
 | PEEK | PEEK-1000, PEEK-CF30 | Heat resistant (240°C), chemical resistance | Aerospace, medical implants | Difficult: High-temp molding |
 | PET | PETG, APET | Transparency, chemical resistance | Bottles, packaging films | Moderate: Fast cooling needed |
 | PMMA (Acrylic) | PMMA 8N, VH001 | 92% light transmission, surface hardness | Lenses, taillights, displays | Moderate: Bubble prevention |
 | POM (Delrin) | POM-H, POM-C | Rigidity, low friction, dimensional stability | Gears, bearings, zippers | Good: High flowability |
 | PTFE (Teflon) | PTFE 7A, TF1625 | Lowest friction (0.04), chemical resistance | Seals, non-stick coatings | Very Difficult: Sintering only |
 | PVC | PVC-U, PVC-P | Flame retardant, low cost | Pipes, wire conduits | Good: Easy extrusion/injection |
LML's portfolio of secondary operation
Secondary operation will improve aestheic or prevent injuries from sharp corner of the products.
Knurling
After knurling, it can increase the sense of beauty of the part and make it easy to handle. It is often used for the outer surface processing of casing, hinge wrench and other parts
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Chamfering
After knurling, it can increase the sense of beauty of the part and make it easy to handle. It is often used for the outer surface processing of casing, hinge wrench and other parts
learn more
Grinding
After knurling, it can increase the sense of beauty of the part and make it easy to handle. It is often used for the outer surface processing of casing, hinge wrench and other parts
learn more
Heat Treatment
After knurling, it can increase the sense of beauty of the part and make it easy to handle. It is often used for the outer surface processing of casing, hinge wrench and other parts
learn more
welding
After knurling, it can increase the sense of beauty of the part and make it easy to handle. It is often used for the outer surface processing of casing, hinge wrench and other parts
learn more
riveting
After knurling, it can increase the sense of beauty of the part and make it easy to handle. It is often used for the outer surface processing of casing, hinge wrench and other parts
learn moreCosmetic Finishes
Surface finishes can have either a functional or aesthetic intent. Finishes that cater to both aspects are classified as cosmetic finishes and are frequently employed for enhancing the appearance of different parts. The fabrication of these parts demands additional measures to minimize defects such as tool-induced marks and scratches.
Functional
There is no necessary to have aesthetic look.Machining veins will be seen
- Smooth machining
- Passivation
- TYPE III andozied
- Glossing
- Brushing
- Black oxide
- Mechanical Polishing
- Etching
- Degreasing
- Electroplating
- Electrophoresis deposition
Matte
slogan：Removes surface streaks and defects, make surface matt and rough
- Blasting
- Acid pickling
- Passivation
- Parkerising
Functional
There is no necessary to have aesthetic look.Machining veins will be seen
- Chemical or electrochemical polishing
- Blasting+Anodizing
- Glossing+Brushing
- Glossing+Polish
- Powder coating
Wide Array of Materials We Offer
Call on RapidDirect’s staff to recommend the right materials from our rich selection of metal and plastic materials with different colors, infill, and hardness. Every material we utilize comes from reputable suppliers and is thoroughly inspected to ensure they can be matched to various manufacturing styles, from plastic injection molding to sheet metal fabrication.
Competitive Prices
You are guaranteed 30% lower costs and competitive prices to help you settle your material and start your project.
Reliable supply chain
Apart from self-owned factory, we have thousands of suppliers to maintain a stable supply of materials.
Superior Quality
Each of our material bears certified material certification to guarantee excellent quality for your parts.
Professional Support
Creative engineers and technicians are happy to help and recommend the suitable material for you.
Introduction to the common process of CNC plastic materials
We can generate instant machining quotes for 50+ plastics and composites.
Plastic CNC services
LML provides advanced CNC plastic machining services, delivering superior product quality and fast turnaround. We operate over 40 CNC machining centers and lathes dedicated to plastics processing, offering both capacity and competitive pricing. We specialize in prototyping and small-batch production with a MOQ of 1, handle complex geometries, and accommodate urgent orders. At LML, you’re not just a client—you’re a collaborator, and we’re your trusted manufacturing partner in China.
Plastic machining
Plastic machining is the subtractive process of shaping a solid plastic workpiece into a finished part using computer-controlled equipment. CNC (Computer Numerical Control) machining enables precise, repeatable production of complex 3D geometries designed in CAD (Computer-Aided Design) software. Our workshop is equipped with 3- and 5-axis CNC machines capable of handling a wide range of engineering plastics—from POM and nylon to high-performance PEEK and PEI—while maintaining tight tolerances and excellent surface finishes. Every part undergoes thorough DFM (Design for Manufacturability) analysis to ensure optimal manufacturability and cost-effectiveness.
Metal CNC Milling
CNC milling for plastics involves rotating multi-point cutting tools to remove material from a stationary workpiece, creating features such as pockets, slots, contours, and complex 3D surfaces. Our 3-axis and 5-axis milling centers allow for high-precision machining of plastic parts with tight tolerances up to ±0.05 mm (±0.002 in). The use of sharp, polished cutters, optimized coolant strategies, and controlled machining parameters ensures minimal heat buildup, reduces internal stress, and prevents material deformation—critical for achieving dimensional stability in plastic components.
Plastic CNC Turning
CNC turning of plastics uses a stationary cutting tool to remove material from a rotating cylindrical workpiece, ideal for producing round, concentric, or axi-symmetric parts such as bushings, rollers, and enclosures. Our CNC lathes and turning centers are configured for plastics, with adjustable spindle speeds, fine feed controls, and specialized tooling to prevent melting, chattering, or burr formation. This process delivers excellent concentricity, smooth finishes, and high repeatability, making it perfect for high-volume runs of precision plastic turned parts.
Gallery of surface finishing part made by LML
The metal part can serve as functional or aesthetic purpose,and the way of usage will decide on the type of surface finish.
Manufacturing vetted network of our service
We look forward to delivering high-quality products and professional services to meet your expectations and requirements.
Consistency requirements
Each part must be visually consistent across the same batch.meaning:
- Same grit must be used across parts for sanding orbrushing
- Brush marks must be in the same direction*
- Color must be consistent to the same pantone when parts are placed next to each other
- Gloss units must be consistent across the batch
* Manual brushing marks will be as unidirectional aspossible. Please note that for rounded geometries, brushingmarks may not be entirely unidirectional.*
Visual inspection conditions
The surface quality of every part must meet the followingconditions:
- Distance: 50cm +10cm (19,7 in + 3,9 in) with a 10/10 vision(or corrected)
- Incidence angle: Approximately 45 in all directions
- Lighting conditions: 500-1000 Lux, color 3300-5300 Kelvin(neutral white)
Defining an A and a B side
We can generate instant machining quotes for 50+ metals and plastics.
Surface finishing often leaves aesthetic defects on yourparts, such as hang marks for anodizing. Defining an Aand a B-side in your design will ensure that the most important areas of your part remain free of defects
In this image you can see how you can define an A-side and a B-side in your technical drawina:
A side: Indicates the most aesthetically importantsurface, typically the visible side of your product.
B side: Indicates the side that is not aesthetically important, typically the side hidden from visibility after assembly
For the primary surface (A-side) of your part, we guaranteedefect-free production. In contrast, secondary surfaces (B-side)may be machined with hanging marks and other minor defects. Bside surfaces, like the rest of your part, will be free of scratches.stains and blemishes.
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FAQs
LML takes the stress out of manufacturing by guaranteeing the quality and consistency of every part. Each order is dimensionally and visually inspected by our in-house quality control team to make sure it meets the LML Standard. If you’re not satisfied with your order, we’ll remake your parts as fast as possible, free of charge, or refund you - whichever you prefer.
- Why 5-Axis CNC Machining Has Superior Advatages?"5-Axis" generally refers to the ability of a CNC machine to move the tool in five directions, which belongs to a high precision production technology.
- GALLERY OF CNC MACHINED PARTSGALLERY OF CNC MACHINED PARTS
- Could I have a look at your production facility for sliver contacts?Cold Heading & Stamping Workshop
Let's Work Together For Reciprocity and Mutual Benefit
LML Metal Products Ltd.No. D309, Yunchuang E Valley, No. 3 Huanshi West Road, Tangxia Town, Dongguan City, Guangdong,China
(86) 17833674102dlynn9527@gmail.com
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