We have 3, 4 and 5-axis machining capabilities for simple and complex geometries, holding dimensions to tolerances as tight as 0.002”.
CNC Turning
We have CNC turning capabilities for custom precision threads, deep holes, and all types of intricate cylinder and round shapes.
EDM
We have electrical discharge machining (EDM) capabilities suitable for producing deep pockets, creating complex features, and cutting the hardest metals with great precision.
Our Custom CNC Machining Services
Our Custom CNC Machining Services is ideal for engineers and industrial designers seeking high-speed, high-precision parts. At HLH Rapid, we offer CNC services suitable for rapid prototyping and low-volume production of end-use components. With a dedicated facility housing over 150 high-tech CNC mills, lathes, wire EDMs, countersinks, and surface grinding machines, along with quality assurance at every stage, we ensure the finest quality components tailored to your exact specifications.
At HLH, tolerances are controlled to ISO-2678 Fine (F) for metals and Medium (M) for plastics as standard. Tighter tolerances available on request.
Metals With Drawing
Metals No Drawing
Plastics With Drawing
Plastics No Drawing
Linear Dimension
±0.01mm
ISO 2768 Fine
±0.05mm
ISO 2768 Medium
Hole Diameters
±0.008mm
ISO 2768 Fine
±0.05mm
ISO 2768 Medium
Shaft Diameters
±0.004mm
ISO 2768 Fine
±0.05mm
ISO 2768 Medium
Prototype and Production Parts in Days
We understand the needs of engineers and industrial designers. At the core of our mission is a commitment to deliver excellence. HLH Rapid’s full in-house capacity ensures that each CNC project receives prompt attention, whether it’s a bespoke prototype or a low volume production. Trust us to bring your designs to life with thorough attention to detail and dedication to meeting deadlines.
One of our areas of expertise is CNC Rapid Prototyping & CNC Machining Services. We understand the urgency and importance of prototyping in product development. When you upload your file, our team will get back with a quote within one business day. Our rapid prototyping services guarantee swift turnaround times without compromising on quality, with lead times as fast as 4 days, and parts delivered via express shipping to your door.
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, we 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
Injection Moulding FAQs
What is CNC machining?
CNC (or computer numerical control) machining is a subtractive manufacturing process in which pre-programmed software and code dictates the movements of factory tools and machinery. It 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.
What is rapid CNC prototyping?
CNC prototyping uses computer-controlled machines to make precise prototypes from digital designs. These machines carve out shapes from materials like plastic, metal, or wood based on the design. Starting with a digital model, the CNC machine follows exact instructions to create the prototype, ensuring high accuracy and intricate details.
Unlike traditional prototyping methods, CNC rapid prototyping allows for iterations within days. This process speeds up product development by allowing quick testing and adjustments before making the final product. Industries like automotive, aerospace, medical and electronics use CNC prototyping to test concepts, refine designs, and ensure quality before mass production. It’s a vital step that brings ideas to life, improving products and meeting high standards.
How much does CNC machining cost?
CNC parts could cost from as low as a few dollars, or as high as $1000 or more. The price depends on the material, tolerance, machining hours, geometrical complexity, part size or quantity. Learn how suppliers calculate the cost of your CNC part.
What are the different types of machining processes?
The two primary CNC machining processes are CNC turning and 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 turning rotates the part when machining the desired shape, which results in cylindrical parts.
We use a third CNC machining process known as EDM or 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.
Which industries use CNC machining?
Many industries rely on CNC machining for high-precision parts and prototypes, including:
Aerospace & defense
Automotive
Electronics
Robotics
Medical
Oil & gas
What are standard machining tolerances?
For features left unspecified, standard tolerances are used. The standard machining tolerance is ISO 2768 Fine (F) for metals and Medium (M) for plastics. Tighter tolerances are available on request.
When is best to CNC parts vs 3D print?
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.
