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Ensuring Safe Workflows: Unclamping Your CNC Machine Before Turning Off

Every machinist knows no matter how high-powered, reliable, or advanced your CNC machine is, treating it with care is crucial to maintain its performance and ensure its longevity. One of the key areas that's often overlooked is the importance of unclamping your CNC machine before turning it off. When overlooked, it could lead to damages that might cost much in repairs and lost productivity.

The Essence of CNC Machine Clamping

To appreciate why it's crucial to unclamp before shutting down, let's understand the role of clamping in a CNC machine. Clamping in CNC machine refers to the method used to hold the workpiece securely in place during operations, preventing displacement or movement that could destroy the workpiece or damage the machine.

The Impact of not Unclamping

Now, what could go wrong if you don't unclamp your CNC machine before turning it off? In an ideal world, nothing should happen. But in reality, leaving your CNC machine clamped while turning it off might lead to struggles when trying to unclamp it later on as the machine might fail to release the workpiece.

This could potentially lead to damages, such as brake or spindle damage, especially when excessive force is applied trying to remove the workpiece.

Steps to Safely Unclamp CNC Machine

When it comes to unclamping your CNC machine before turning it off, there are a few steps to ensure it is done correctly.

1. Pause the machine: Before any interaction with the machine components, make sure to hit the pause or stop function on the machine.

2. Back off the tool: Subsequently, depending on the type of CNC machine involved, direct the machine to back off the tool. This step may involve different commands based on the specific CNC machine in question, as the commands vary due to the difference in CNC control panels.

3. Engage Unclamp command: After backing off the tool, engage the unclamp command. This command disengages the force holding the workpiece, freeing it from the hold of the CNC machine.

Adopting A Machine-friendly Shutdown Routine

Adopting a routine for shutting down your CNC machine is beneficial and can save you time, money and premature machine ware. Remember, any CNC machine is an investment, and like any good investor, protecting your investments should be a top priority.

In conclusion, observe the simple but essential habit of unclamping before turning off your CNC machine, and you'll be ensuring the extended lifespan of your equipment and maintaining the high quality of your outputs.


Transformative Maintenance: Unclamp Your CNC Machine Before Shutting Down!

In maintaining a thriving and effective output with your Computer Numerical Control (CNC) machines, observing the correct shutdown procedures is crucial. In this context, unwavering focus should be on one key aspect - unclamping before turning off.

Understanding Clamping

Clamping in a CNC machine is the means by which the workpiece gets firmly held in place during operations. The goal is to ensure that the workpiece doesn't get displaced during operations, hence maintaining the integrity of the working process.

Why Should You Unclamp Before Turning Off?

Failing to unclamp before shutting down can lead to struggles when trying to unclamp later. In worst-case scenarios, it might mean brake or spindle damage due to the application of excessive force to remove the workpiece.

The Correct Unclamping Steps

Does the unclamping process feel a little intimidating, perhaps? Let's break it down into manageable steps:

1. Mr or Mrs Stop Button: The first essential step is to pause the machine before you do anything else.

2. Take a Step Back, Tool: Depending on your particular CNC machine, you'll guide the machine to move the tool away from the workpiece.

3. Time to Unclamp: Now that the tool is out of the way, you can command the machine to unclamp, thereby releasing the clamping forces on the workpiece.

Unclamping: The Secret Lifespan Extender

Never ignore the importance of unclamping. It is one of the protective measures for your machinery. Always remember, CNC machines are investments that are meant to last and help achieve a broad spectrum of tasks. Therefore, the care you show to them is the care you show to your own bottom line.

Unclamping as a crucial shutdown procedure is simple, essential and impactful. Adopt this healthy habit, and keep your CNC machine in peak condition.

cnc machine unclamp before turning off

What is CNC Turning

CNC turning is a process that involves using computer numerical control (CNC) machines to shape and finish various materials, such as metals and plastics, into desired shapes and sizes.
This process is typically used in the manufacturing industry to produce precision parts and components for a wide range of applications, including automotive, automation, aerospace, medical, machinery, and industrial.

CNC Turning service

Asianstar Professional CNC Turning Service

Asianstar CNC turning Service offers precision machining for a wide range of materials, including metals, plastics, and composites. With high level facilities and skillful operators, we can produce high-quality parts with tight tolerances and intricate designs.

Our CNC turning capabilities allow us to produce parts with diameters ranging from 0.5 mm to 480mm and lengths up to 450mm. We offer both single and multi-axis turning, as well as live tooling options for added complexity and accuracy.

We use proven processes and quality control measures to ensure that every part we produce meets our clients' specifications and expectations.

Whether you need a single prototype or high-volume production runs, our CNC turning service can provide the precision and reliability you need to get your project completed on time and on budget.

CNC Turning service

Components Sizes of Asianstar CNC Turning Service

Unit (mm) Min Max
Out Diameter 0.5 480
Inner Diameter (Hole) 0.3 465
Length 1.0 450
Groove Diameter 0.4 above
Thread M1.2 above

Components Tolerance of Asianstar CNC Turning Service

Unit (mm) Tolerance according to sizes
Height Tolerance Diameter Size 0.5 to 3 3 to 6 6 to 30 30 to 120 120 to300 300 to480
Tolerance ±0.003 ±0.010 ±0.020 ±0.030 ±0.035 ±0.040
Length Tolerance Length Size 0.5 to 3 3 to 6 6 to 10 10 to 20 20 to 30 30 above
Tolerance ±0.010 ±0.020 ±0.250 ±0.250 ±0.030 ±0.035

Components shape and position tolerance of Asianstar CNC Turning Service

Tolerance Class followed Tolerance (mm)
Straightness and Flatness Verticality Symmetry
10 10 to 30 30 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000
H ±0.015 ±0.02 ±0.03 ±0.05 ±0.10 ±0.15 ±0.02 ±0.025 ±0.03 ±0.035 ±0.02 ±0.03 ±0.04 ±0.05

Capability of Asianstar CNC Turning Service

Type of Turning Machine Diameter Size (mm) Length Size (mm) Productivity (PCS/Month)
Auto Turning Machine Simple Turning Machine Multi Turning Machine Pin Turning Machine Min 0.5 Max 480 Min 1.0 Max 450 200’000/Item


Multiple Machining Processes

Multiple Machining Processes

Asianstar has various machining processes to support different types of components from client, we can choose the best suitable manufacturing solution to carry result in perfect performance and cheap cost

Flexible Custom Service

Flexible Custom Service

With skillful machining technologies, Asianstar is flexible to support clients on different materials and different structures of the components, we also flexible on the components quantities and even assembly

Create Designing for Clients

Create Designing for Clients

Not only producing according to clients drawings, Asianstar also propose the better designing to clients, supporting clients to buildup improved designing or even new generation components

Standard Procedures

Standard Procedures

Asianstar production, as experienced by many years, is strictly following internal Standard Operating Procedures, to make sure the production schedule is smooth and plans are well carried out well without accidents

Standard Procedures

Standard Procedures

Asianstar strictly controlling product quality by system. We start QC controlling from production plan once setting up, to production process by monitoring QC checking and until the final Inspection before packing

Fast Lead-Time Delivery

Fast Lead-Time Delivery

Asianstar strictly control the production processes, teams keep the plan moving ahead according to the procedures, we have internal time management schedule which mostly bring earlier lead-time of delivery

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.


  • 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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