A Comprehensive Guide to CNC Milling Services

A vast number of modern products, ranging from smartphones to advanced aircraft, owe their existence to the dependable and adaptable nature of CNC milling services. CNC milling is perfectly suited for both rapid prototyping and mass production in materials like plastic and metal. In this article we consider the ​​impressive benefits and uses of CNC milling services in the world today.

People have been turning symmetrical objects on lathes and achieving high precision results for centuries, but the multi-axis CNC milling machine is a relatively new invention, which is unbeatable for subtractive machining, giving CNC milling services the capability to make square shapes, bevels, slots, angles, and complex cures, and even the milling of round or near-spherical objects.

How is CNC milling different from CNC turning?

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In CNC milling operations, the workpiece is clamped in a stationary position and the cutting tool, which is mounted on a rotating spindle, is moved to make cuts in the workpiece. The workpiece is usually mounted in a horizontal (X-Y coordinate) machine vise, and the spindle, fitted with any of a range of cutting tools designed for specific cutting operations, is moved by computer control along X, Y, and Z axes.

A CNC milling machine often has a set of tools mounted on a turret that can be rapidly swapped over to make different types of cut without significantly slowing down the cutting process. In common with all types of metal machining and cutting operations, however, CNC milling employs a special cutting fluid to keep the cutting tool and workpiece cool as well as to clear chips and debris from the surface of the workpiece to improve the finish and extend tool life. 

As CNC machining operations, the accuracy of CNC turning and CNC milling are both extremely high, and tolerances of 0.01mm or better are easily achievable with our modern, high quality, CNC milling machines. Our CNC milling machines include the highly sophisticated Makino V33i Vertical 3-Axis Hard Milling Machine, which is designed to mill dies and molds from hardened materials with extreme precision.

What are CNC milling services used for?

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CNC Mills can be used simply to drill holes, but they are best suited for the milling of parts that are asymmetric, often with complex shapes. Asymmetric components cannot easily be manufactured by CNC Turning without repositioning the stock repeatedly in the chuck, if it is possible to turn them on a lathe at all. This makes CNC milling services invaluable for precision machining of prototypes as well as accurate batch production of parts that require fine tolerances and perfect duplication.

What can you make with CNC milling services?

  • Precision dies & stamping tools  in hardened materials
  • High precision injection molds & mold parts including fine surface textures
  • Intricate, complex molds for metal casting
  • Precision dies & punches, including non-round, oblong & form punches
  • High pressure, hardened extrusion dies
  • Machining of very hard tooling and components including instruments & surgical tools
  • Specialized cutting tools, holders, arbors & fixtures
  • Precision machined components including aerospace turbine blades
  • Micro-mechanical & micro-electromechanical components
  • Electronic & semiconductor components
  • Automotive engineering parts including engine and transmission components

It would be possible to carry out these operations using simpler machines, but even the process of repositioning and reclamping the stock for a sequence of different cutting tasks is likely to cause registration errors and distortion of the finished product. Milling and turning are the most common CNC machining services, and between these two operations almost any complex shape can be manufactured.

The more axes of independent motion that the CNC milling machine can use, the more complex the shapes it can cut, and the less likely it will be that the workpiece may need to be moved to a different machine or repositioned in the vise for any specific cutting process. The most sophisticated CNC milling machines offer multiple axes of motion for very high accuracy and precision.

What are the benefits of JC Machining CNC milling services?

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The benefits of our CNC milling services become clear when you are making combinations of chamfers, grooves, profiles and square face cuts that require very high precision on a single workpiece. Carrying out all these tasks in a single machine, and only having to clamp the workpiece in position once, increases accuracy and speeds up the overall cutting time. Our state of the art CNC milling machines are multi-axis models, which minimizes the need for repositioning the workpiece and maximizes accuracy.

10 Features of JC Machining CNC Milling Services

  1. 3,4,5 Axis Milling
  2. Tolerances to 0.01mm
  3. Many Finishing Options
  4. Rapid Quotes
  5. IP Confidentiality Guaranteed
  6. Zero-Defect Manufacturing
  7. Automatic & Manual Quality Control Systems
  8. ISO 9001:2015 Certification
  9. ISO-2768-m and ISO-2768-c Standards for Tight Tolerances
  10. 3D Coordinate Measuring Machine (CMM)

An advantage of using JC machining CNC milling services is the ease and convenience of being able to simply upload your design to our website in CAD format and receive rapid feedback. This includes cost quotations as well as suggestions from our expert technicians if they can see a way to optimize your design. We then mill your design and ship it to you anywhere in the world at very competitive rates.

At JC Machining, we are dedicated to delivering the highest quality CNC milling services to our global customers at affordable prices. Not only experts in CNC milling, we are a one-stop-shop for all CNC machining and grinding servicesContact us today to discover how we can manufacture your designs with zero defects guaranteed and industry leading accuracy.

The Range of CNC Machining Services from JC Machining

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Frequently Asked Questions
  • Parts machined will follow ISO 2768-m (medium) or ISO 2768-f (fine).
  • We guarantee on following ISO 2768 standards for all CNC machined parts and other components  that do not include specific tolerance requirements.
  • For even tighter tolerances on shafts, we offer custom quotes as a free service.

In our current facilities, we have:

  • 6 CNC milling machines
  • 12 CNC lathe machines
  • 15 High-variant grinding machines
  • 46 Grinding machines
  • 11 Types of Wire-EDM Sandblaster
  • Knurling Machine

Other advanced manufacturing equipment.

There is no MOQ. We offer solutions such as one-off rapid prototypes, custom low-volume CNC machining, and mass production with short lead times.

Even though our in-house machines can machine larger parts, we recommend these sizes:

  • Maximum Turning Diameter: 250 mm
  • Maximum Turning Length: 300 mm
  • Maximum Grinding Diameter: 250 mm
  • Maximum Grinding Length: 400 mm
  • Maximum EDM Length Hole: 50mm
  • Maximum EDM Length: 250mm
  • Maximum Wire-EDM Thru hole Height: 100mm
  • Maximum Wire-EDM Length & Width Capacity: 300*500mm

Lead times will vary depending on your project complexity and our capacity:

For larger projects, in general, you can expect shipment 2-3 weeks after sending in your confirmed order.

With rapid one-off CNC prototypes, global delivery can be within 10 days.

Our sales office operates from 8:00 am to 6:00 pm local time (GMT+8)

Our factory operates 24/7 Monday to Sunday.

As Machined, Polishing, Sand Blasted, Black Oxide, TiN, TiCN, TiALN, AlCrN, DLC and Chrome Plated.

We offer free ground shipping limited to customers in Taiwan and China. For other locations, our sales and fulfillment team will work with the carriers of your choice.

We understand that your 3D data and designs are invaluable to your business. Therefore, we take the protection of your intellectual property rights (IPR) very seriously. We encrypt all files that are transferred using SSL, ensuring that they can’t be intercepted while being uploaded to our servers.All the information and any files which you upload onto our platform are stored securely, and only ever shared within our organization with those employees who need access to it in order to manufacture your parts.

We ensure confidentiality across the entirety of your order; original drawings are not shared with 3rd party suppliers as all our production is done in-house.If you would like some additional reassurance, we can sign a Non-Disclosure Agreement.

JC Machining has a CNC manufacturing team of professional engineers and machinists to reduce manufacturing redundancy, optimize CNC programming, shorten machining time, improve surface finish, and deliver the best quality machined parts.We take each project personally and carefully examine each drawing, we can then enhance the 2D/3D designs by adding clarity and detailed information and further analyze your design to accommodate any special fixturing and machining strategies used to produce your parts at a very reasonable cost.

Our manufacturing team follows strict quality control standards, delivering 100% accuracy at strict tolerances. You can also call or email us at any time, and we’ll help with ordering parts, design feedback, material recommendations, and answer any questions.