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CNC Mill Tool Changer: Enhancing Efficiency and Productivity


At the heart of every CNC milling machine lies a crucial component that significantly impacts its efficiency and productivity - the tool changer. The tool changer automates the process of replacing tools during machining operations, allowing for uninterrupted workflow and reduced downtime. In this blog post, we will explore the importance of a CNC mill tool changer, its benefits, different types, and considerations when choosing the right tool changer for your needs.

Enhancing Efficiency:

The primary advantage of a CNC mill tool changer is the improvement in efficiency. Traditional manual tool changing can be time-consuming and prone to human errors. With an automated tool changer, the machine can quickly and accurately swap tools, minimizing idle time between machining operations. This enhanced efficiency translates to increased production output, reduced lead times, and ultimately, improved profitability.

Additionally, the tool changer allows for greater flexibility in complex machining tasks. It enables the use of multiple tools within a single machining operation, eliminating the need for manual intervention to change tools manually, thus saving valuable time and effort.

Types of Tool Changers:

There are several types of tool changers available for CNC milling machines. The most common ones include:

  1. Umbrella-style tool changer: This type features a rotating carousel that holds a variety of tool holders around its periphery. The carousel moves laterally to bring the required tool into position.
  2. Drum-style tool changer: In this type, the tools are arranged in a cylindrical drum, which rotates to align the desired tool with the spindle.
  3. Arm-style tool changer: This type utilizes a robot arm or a gantry system to pick tools from a magazine and present them to the spindle. It offers a high degree of flexibility and can accommodate a large number of tools.

When choosing a tool changer, factors such as the type and size of tools used, required tool capacity, and space limitations should be considered to ensure the optimal tool changing solution for your specific milling application.

Considerations for Tool Changer Selection:

When selecting a tool changer for your CNC mill, it's important to consider the following factors:

  • Tool capacity: Determine the number of tools required for your machining tasks.
  • Tool size and weight: Ensure that the tool changer can handle the size and weight of your tools.
  • Tool change time: Consider the required tool change time for minimizing downtime.
  • Machine space: Evaluate the available space on your CNC mill for accommodating the tool changer.
  • Reliability and maintenance: Look for a tool changer that offers reliable operation and requires minimal maintenance.


In conclusion, the tool changer plays a vital role in enhancing the efficiency and productivity of CNC milling machines. By automating the tool changing process, manufacturers can reduce downtime, increase production output, and improve overall profitability. When selecting a tool changer, it is crucial to consider factors such as tool capacity, size, change time, machine space, reliability, and maintenance requirements. By choosing the right tool changer for your needs, you can maximize the potential of your CNC mill and ensure smooth and uninterrupted machining operations.

cnc mill tool changer

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


CNC Turning Service

CNC Turning Service

Our CNC Turning Service provides different sizes of roll shape work-pieces, the diameter range is from 0.5mm to 480mm, reaching tolerance +/-0.003mm.

CNC Milling Service

CNC Milling Service

Our milling machines and CNC centers are able to produce complicated structure part, five-axis devices produce multi-sides at one-time jag which bring high precision result

Sheet Metal Fabrication

Sheet Metal Fabrication

Our Sheet Metal Fabrication provides slicing, punching, bending, welding, painting and assembling for set products, unique tooling for each project to raise production efficiency

Aluminum Extrusion

Aluminum Extrusion

Our Aluminum Extrusion brings clients various shapes of aluminum parts, high efficiency for mass quantity, our precision extrusion mold control tolerance within 0.01mm

Forging Service

Forging Service

For some steel serious products, we apply Forging Service to make out their outer shape and them use CNC devices to start drilling, forming, rolling, cutting, etc.

Finishing Service

Finishing Service

Our Surface Finishing Service uses chemical or electro post-treatments after machining tasks are finished, normally includes Oxide, Anodizing, Passivation, E-Plating, Painting,etc.


CNC Brass Machining


CNC Machining Brass material is used for wide range components, we support clients to produce a variety of parts such as gears, locks, electronics, pipe fittings, etc.

CNC Copper Machining


CNC Machining Copper material is soft and easy to machining on different shape of components. We mostly produce copper components for electric devices by machining and stamping

CNC Aluminum Machining


CNC Machining Aluminum materials is one of our most used materials. We support clients to turning, drilling or milling on aluminum material from size 0.5mm to 470mm

CNC Stainless Steel Machining

Stainless Steel

CNC Machining Stainless Steel are common material for wide range components, we produce Stainless Steel turning parts, milling parts, high smoothness components, etc.

CNC Titanium Machining


CNC Machining Titanium material brings components superb features, we use titanium to produce high precision work-piece for clients from aircraft, aerospace, medical devices

CNC Plastic Machining


Our CNC Machining Plastic materials includes ABS, HDPE, LDPE, Nylon, POM, Peek, Polycarbonate, etc. We produce them in high precision and high smoothness.


Experienced Skills

Asianstar have long term experience in CNC machining service and built up skillful team servicing clients from designing to product

High Quality

Asianstar QC system controls the production following internal quality protocol, which make sure every procedure are working under quality demands

High Efficiency

Asianstar abundant facilities allows multiple machining process, we can support clients in rapid sampling/prototyping and quick order lead-time

Competitive Price

Asianstar has enough in-house facilities for all machining processes, so we can choose the best machining solutions to make the production cost lowest


  • Q1.Do you support ODM/OEM?

    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

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