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CNC Machining Services

High Precision Parts,
To Spec To Tolerance

On-demand high precision plastic and metal
parts and prototypes.

Lead times from 4 days
3, 4 and 5 axis machines available
70+ machines available
Many metal and plastic materials available
ISO and IATF certified
What is CNC Milling and What is it Used for?

CNC Milling

CNC milling shapes out of a metal or plastic material blank that is usually flat, holding dimensions to tolerances as tight as 0.002”. CNC mills consist of a multi-axis system (three, four, or five axes, depending on the part complexity).
What is CNC Turning and What is it Used for?

CNC Turning

Typically used to create a rounded surface. Turning rotates the part when machining the desired shape, whereas milling rotates the tool.
EDM Machining

EDM

Electrical discharge machining (EDM), also known as spark machining, uses thermal energy instead of mechanical force to remove material from a workpiece. It is often used to produce sharp internal corners or particularly deep cavity.

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Our Custom CNC Machining Services

CNC machining delivers high speed, high precision, and robust manufacturing solutions. You take a block or billet of material and cut away at it with a series of tools and drill bits, removing material to make CNC machined parts. At HLH, over 70 high precision CNC mills, lathes, sink and wire EDMs, and surface grinding machines help us deliver custom parts for many industries.

Metal (standard) Plastics (standard)
Linear Dimension ISO 2768-1 Fine ISO 2768-1 Medium
Hole Diameters (Not Reamed) SO 2768-1 Fine ISO 2768-1 Medium
Shaft Diameters ISO 2768-1 Fine ISO 2768-1 Medium

CNC Machining Materials

PMMA

PMMA is known as a 50% lighter, clearer, more affordable, shatter-resistant alternative to glass. It is commonly used for automotive lights and windows to smartphones screens.
Material Reference
Translucent, Black PMMA
Appearance
Translucent, Black
transparent-cnc

HDPE

HDPE is an engineering plastic that is employed extensively in the packaging industry. It has a high strength-to-density ratio and high durability. It's known as one of the most versatile plastic materials and is used for a wide range of applications.
Appearance
Many Colors
_DSC0004(CNC-HDPE-Deburring).JPG

PET

PTE is a clear, strong and lightweight material that is very well suited for applications where complex parts and high dimensional accuracy and surface quality are needed.
Appearance
Colorless
PET

PC

PC has high impact resistance, wear resitance and can withstand functional testing. It is commonly used in the medical, automotive, telecommunications industries.
Material Reference
Translucent PC, Black PC, Fireproof Black PC V0,PC+ABS
Appearance
Black, Translucent (or polished transparent)
PC Material HLH Rapid

PE

PE is a strong durable, light-weight and flexible material. It is known as a safe choice and is the most widely used thermoplastic polymer today.
Material Reference
PE, HDPE, LDPE,White PE+15%GF
Appearance
Translucent
PE MATERIAL

PVC

PVC is a durable material that is resistant to weathering and chemicals and doesn't conduct electricity, making it widely used in applications, such as pipes, medical devices and electronics.
Appearance
Lacquered appearance, comes in many colors
PVC Smooth

Bakelite

Bakelite is a castable, fire-resistant plastic. It is lightweight, durable, and can be molded into nearly infinite shapes. Bakelite is popularly used for industrial purposes and making jewellery.
Appearance
Many Colors
Bakelite

PEEK

PEEK is a tough, rigid, high performance engineering plastic with outstanding resitance to harsh chemicals and high temperatures, making it an excellent choice for aerospace and automotive parts.
Material Reference
PEEK
Appearance
Colourless, Light brown
PEEK

PP

PP is durable, robust and resistant to many external factors. It is the second most extensively used plastic, often known to be one of the safer choice.
Appearance
Many Colors
PP Materials

PBT

PBT, or polybutylene terephthalate, is a high strength and high rigidity plastic with stable electrical properties. It is commonly used in the automotive and electronics industries.
Appearance
White to Bright Colors
PBT Material

PTFE

PTFE is a soft, low friction material with excellent chemical and weathering resistance. It is commonly used to make non-stick coating in kitchen cookwares, bearings, slide plates and many other components.
Appearance
Black, Grey
PTFE Smooth

ABS

ABS is an extremely rigid, versatile thermoplastic with fantastic chemical and weather resistance, making it great for outdoor applications like automotive acessories and aircraft panels.
Material Reference
White ABS, Black ABS, Cream ABS,Fireproof ABS
Appearance
White, Black, Cream, Milky
Smooth ABS

PEI

PEI is an amorphous thermoplastic with high mechanical strength and exceptional mechanical, thermal and electrical properties. It is widely used in the medical instrument to make reusable devices such as stopcocks, instrument trays, and pipettes
Appearance
Translucent and Amber
PEI MATERIAL

POM

POM is a high crystaline, high-performance plastic with high rigidity, high mechanical strength and excellent wear resitance. It is commonly used in automotive parts, consumer goods and electronics.
Material Reference
White POM, Black POM,Anti-static Black POM
Appearance
White, Black
POM Material

Copper

Copper is a soft metal that can be easily shaped and it has excellent electrical and thermal conductivity.
Material Reference
Pure Copper, Brass, Beryllium Copper, Bronze, Beryllium Bronze, Phosphor Bronze 510
Appearance
Pinkish Orage, Reddish Brown, Reddish-Gold, Yellow
Copper Deburring

Aluminium

Aluminum is strong, light, cost-efficient and has great machinability, making it a popular choice in the aerospace and aviation, automotive, and consumer electronics industry.
Material Reference
AL7075, AL7075 T6/T7351, AL2024 T3/T4/T351, AL2024 T351/T6, AL6061, AL6061 T6/T651, AL5052 H32, AL5082, AL5083, AL2017,AL2017 T351/T4, ADC12, A380, LM24
Appearance
Silvery White
Aluminium Parts

Steel

While steel is not corrosion resistant and it be tricky to machine, it is stronger and cheaper than stainless steel, making it ideal for toxic, long-lasting, durable cookware and many other applications.
Material Reference
Steel 45#, Alloy Steel, Spring Steel, Bearing Steel, Mild Steel, Cold Roll Steel, Tool Steel, 41CrALMo7, Magnetic Steel, Steel8620, Steel4130, Steel9310, Steel1018, Steel1010
Appearance
Silver
Steel 2

Stainless Steel

Stainless steel is strong and highly resistant to corrosion and rust, making it ideal for parts that are exposed to different elements for long periods and do not easily break.
Material Reference
174PH, SS201, SS202, SS301, SS303, SS304, SS304L, SS316, SS321, SS310S, SS401, SS409, SS410, SS416, SS4140, SS4340, SS455, SS630, SS316L
Appearance
Silver
Stainless Steel 2
PMMA HDPE PET PC PE PVC Bakelite PEEK PP PBT PTFE ABS PEI POM Copper Aluminium Steel Stainless Steel

Typical CNC Finishing Options

Applicable Materials Color Description
Anodizing Aluminium, Titanium, Stainless Steel Clear, black, grey, red, blue, gold Anodising is used to increase surface hardness, wear resistance and durability of metals such as Aluminium and Titanium.
Painting All metals and plastics Black, RAL/Pantone colors Painting is a well-known way to add colour. Overall, it is a great choice to improve the aesthetics of cnc machined parts.
Black Oxide Steel, Stainless Steel, Copper Black Black oxide is a coating used to improve corrosion resistance and minimize light reflection.

How It Works

CNC or computer numerical control machining is a subtractive manufacturing method that leverage a combination of computerized controls and machine tools to rapidly remove layers from a solid block of material. The process produces custom high precision metal and plastic parts.

CNC Machining Services
HLH Changes The Prototyping Scene For Joost Engines 2

Why CNC Machining

CNC vs 3D Printing
Compared with parts manufacturing through additive methods, CNC machined parts are functionally stronger and typically have superior production quality and finish. Thus, CNC machining is typically used in the mid to late stages of product development when parts are ready to be tested for functional accuracy.

Custom CNC Machining is Used For
High precision parts and rapid prototyping metal parts, performance plastics, and rapid low-mid volume production runs. When it comes to CNC machining, our approach is: provide highly flexible rapid low volume manufacturing solutions that deliver superior parts, fast.

Advantages of CNC Machining

  • Fast and repeatable
  • Delivers on precise and high tolerance specifications
  • Wide range of metal and plastic materials
  • Little room for human error

FAQs

CNC machining is subtractive machining manufacturing process in which pre-programmed software and code dictates the movements of factory tools and machinery.

Industries that use CNC machining include the aerospace, automotive, robotics, medical and electronics industries.

The standard machining tolerance is ± 0.005″ or 0.13mm. Tolerances are the allowable range for a dimension.

Generally, we would recommend CNC machining parts over 3D printing, as CNC machined parts are functionally stronger than those 3D printed and typically have superior production quality. This is why CNC machining is typically used in the mid to late stages of development, when parts are ready to be tested for functional accuracy.

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