Precision CNC Milling Services
TTD provides you with trustworthy high-quality precision CNC milling services, featuring competitive pricing and fast lead times.
Over 60 certified materials available
Tolerance precision up to ±0.005mm
Custom finishes supported
Lead times from 7 days
Customer data security guaranteed
Precision CNC Milling Services
Looking for a dependable supplier of CNC-milled parts?
Our Maximum Capabilities For CNC Milling
Advanced Milling Technology for Efficient and Precise Machining
3-axis and 3+2-axis CNC Milling
| Size | Metric units | Imperial units |
|---|---|---|
| Max. part size for soft metals & plastics | 2000 x 1500 x 200 mm 1500 x 800 x 500 mm |
78.7 x 59.0 x 7.8 in 59.0 x 31.4 x 27.5 in |
| Max. part for hard metals | 1200 x 800 x 500 mm | 47.2 x 31.4 x 19.6 in |
| Min. feature size | ∅ 0.50 mm | ∅ 0.019 in |
5-axis CNC milling
| Size | Metric units | Imperial units |
|---|---|---|
| Max. part size for all materials | 650 x 650 x 300 mm | 25.5 x 25.5 x 11.8 in |
| Min. feature size | ∅ 0.50 mm | ∅ 0.019 in |
CNC Milling General Tolearances
| Type | Tolerance |
|---|---|
| Linear Dimension | ± 0.025 mm ± 0.001 inch |
| Hole Diameters (not reamed) | ± 0.025 mm ± 0.001 inch |
| Shaft Diameters | ± 0.025 mm ± 0.001 inch |
| Part Size Limit | 950 * 550 * 480 mm 37.0 * 21.5 * 18.5 inch |
Materials For CNC Machining Parts
CNC Metals
Aluminum
Aluminum: Aluminum’s strength-to-weight ratio, affordability, and recyclability have made it widely used across industries worldwide.
Alloys: 6061-T6, 7075-T6, 2024, 5052, 6060, 5083, 2017, 6082
Finishing Options: Alodine, Anodizing Types II, III, III + PTFE, ENP, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing
Stainless steel
Stainless steel: Stainless steel’s corrosion resistance and ductility make it ideal for long-term exposure to elements and easy shaping into different forms
Finishing Options: As machined, Bead Blasted, Polishing, Decorative Chrome Plating, Powder Coat, Nickel Plating, Gold Plating, Silver Plating
Alloys: SS303, Stainless Steel 304/304L, Stainless Steel 316/316L, Stainless Steel 17-4, Stainless Steel 416, etc.
Alloy Steel
Alloy Steel: Alloy steel is steel mixed with elements like manganese, nickel, and chromium to enhance its strength, hardness, corrosion resistance, and durability, tailored to meet specific application needs.
Alloy: AISI 1215, AISI 4140, AISI 4340, AISI 8620, AISI 4130
Finishing Option: Polishing, Plating, Painting, Powder Coating and etc.
Tool Steel
Tool Steel: Tool steel is a high-carbon, high-alloy steel prized for its hardness, wear resistance, and toughness, making it ideal for tools, dies, and molds.
Alloy: A2 Tool Steel, D2 Tool Steel, O1 Tool Steel, S7 Tool Steel, M2 Tool Steel
Finishing Option: Bead/Sand Blast, Polishing, Plating, Painting, Powder Coating, Heat Treatment and etc.
Brass
Brass: Brass is an alloy of copper and zinc, especially metal material with more than 20% zinc content, which is the most commonly used metal material in cnc machining
Finishing Options: Nickel Plating, Bead Blasted, Gold Plating, Silver Plating
Alloy: C360, C260
Copper
Copper: Copper is a soft, malleable metal with excellent thermal and electrical conductivity, making it an essential material in many industries.
Grade: C10100, C11000, C12200, C14500, C17200
Finishing Option: Plating, Polishing
Titanium
Titanium：With its low density, high strength, and excellent corrosion resistance, titanium is an ideal lightweight material for demanding applications in the aerospace, automotive, and biomedical industries.
Alloy: Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-3Al-2.5V
Finishing Option: Polishing, Anodizing, Sandblasting, Chemical etching, Laser engraving and etc.
Magnesium
Magnesium:Magnesium is a versatile, lightweight metal with a high strength-to-weight ratio and excellent conductivity, making it vital for the aerospace, automotive, and healthcare industries.
Alloy: AZ31B, AZ91D, We43, AM60B, ZK60A, QE22
Finishing Option: Blasting, Anodizing, Chromate Conversion Coating, Passivation, Powder Coating, Electroplating etc.
CNC Plastics
POM (Delrin/Acetal)
POM (Delrin/Acetal) is an easy-to-machine thermoplastic with high stiffness and excellent moisture resistance. Its low friction and high wear-resistance make it ideal for durable, precision mechanical parts.
Color: White, black, brown
Grade: POM-C, POM-H, UV stabilized POM, Food-Grade POM
PMMA(Acrylic)
PMMA: PMMA is commonly known by the trade name “acrylic” or “plexiglass”. It is a lightweight and shatter-resistant material that is often used as a glass substitute in applications such as skylights, displays, signage, and lenses
Color: Transparency
Grade: Extruded PMMA, Cast PMMA, Impact-Modified PMMA, UV-Stabilized PMMA, Heat-Resistant PMMA
PEEK
PEEK: PEEK is a high-performance engineering thermoplastic with excellent mechanical, chemical, and thermal properties, short for Polyether Ether Ketone
Color: Beige with no transparency
Grade: Unfilled PEEK, 30% glass-fiber reinforced PEEK, 30% carbon-fiber-reinforced PEEK, Bearing Grade PEEK
Nylon(PA)
Nylon: Nylon is Strong, durable, and elastic, Nylon offers excellent resistance to abrasion, chemicals, and moisture, making it ideal for textiles, ropes, industrial gears, and automotive components.
Color: Nylon is often used in its natural off-white or slightly yellowish color
Grade: Nylon 6, Nylon 6/6, Nylon 11, Nylon 12
PTFE (Teflon)
PTFE: PTFE(Teflon) is a high-performance plastic material known for its exceptional chemical resistance, low friction coefficient, and high-temperature resistance
Color: The color of PTFE is typically white or off-white
PVC
PVC: PVC stands for polyvinyl chloride, which is a synthetic thermoplastic polymer that is widely used in various applications. PVC is a versatile material that can be rigid or flexible
Color: clear or opaque
Grade: UPVC, PPVC, CPVC
PEI(Ultem)
PEI: PEI has excellent mechanical, thermal, and electrical properties, as well as good chemical resistance
Color: Amber or brownish color
Grade: Unfilled PEI, Glass-Filled PEI, Carbon-Filled PEI, Ultem PEI
PAI(Torlon)
PAI: or Torlon Polyamide-imide, is a type of thermoplastic polymer that is known for its excellent mechanical properties that it maintains over a wide range of temperatures.
Color: Yellow
Grade: Torlon4203, Torlon4503, Torlon4301,Torlon4501
Surface Finishes For CNC Machined Parts
TTD offers a wide selection of surface finishes to improve the surface qualities of CNC-machined parts. The surface finishes applied after machining can change the appearance, surface roughness, hardness, and chemical resistance of the produced parts.
As machined (Ra 3.2μm / Ra 126μin)
This finishing option with the shortest turnaround time. Parts have visible tool marks and potentially sharp edges and burrs, which can be removed upon request.
Smooth machining (Ra 1.6μm / Ra 63μin)
Smooth machining is similar to a ‘As machined’ finish, but with less visible machine marks. Parts are machined at a lower feed rate, with no hand polishing.
Polishing (Ra 0.8μm / Ra 32μin or better)
Polishing is the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment.
Bead Blasting
Machined parts are bead blasted with glass beads which results in a uniform grainy texture and reduced machining marks.
Vibratory finishing
A process that removes burrs, sharp edges, and machining marks from workpieces by tumbling them with vibrating media.
Bead blasted + Anodizing type II
The parts are bead blasted to #120 grit before being anodized type II—ideal for increasing the aluminum part’s corrosion resistance and cosmetic effects.
Bead blasted + Anodized type III (Hardcoat)
The parts are bead blasted to #120 grit before being anodized type III. Type III (Hard Coat) is thicker and adds a wear-resistant layer to Type II’s corrosion resistance, suitable for functional applications.
Black Oxide
Black oxide is a conversion coating that is used on steels to improve corrosion resistance and minimize light reflection.
Powder Coated
This is a finish of applying powdered paint to the components and then baking it in an oven, which results in a stronger, more wear- and corrosion-resistant layer that is more durable than traditional painting methods.
Chromate Conversion Coating
Chromate conversion coating is used to improve the corrosion resistance of aluminum and aluminum alloys while keeping their conductive properties. It is also applied as a base layer prior to priming and painting parts.
Plating
Include Nickel Plating, Silver Plating, Gold Plating, Zinc Plating, Chrome Plating, Tin Plating and etc, it is ideal to reduce corrosion, improve the appearance and function of solderability and electrical conductivity.
DLC (Diamond-Like Carbon) Coating
DLC (Diamond-Like Carbon) coating is a hard, wear-resistant coating made of a carbon-rich material that exhibits some of the properties of diamonds.
*Other surface finishes are also available. Learn more about our metal and plastic surface finishing capabilities here.
Why Order CNC Milled Parts From HtsPrecision
01
Rapid Turnaround
Send your CNC milled parts order today. Experience a smooth, efficient process. We guarantee fast delivery of quality results, with turnaround as quick as 7 days to keep your projects on schedule.
02
High Accuracy
Our standard CNC tolerance is +/- 0.127mm. Use our tolerance configurator for precision machining down to +/- 0.005mm, meeting strict precision needs.
03
A Wide Variety Of Materials
We offer over 60 production - grade materials. Each part gets careful material selection to match your application perfectly.