A limit switch controls the limits of your CNC machine. CNC is all about accuracy and precision to come up with the best-finished part.
Thus, limits are important, and the CNC should know where to stop.
The limit of the axes is controlled so that the switch is activated, and the CNC stops when the limit is reached.
But finding the best limit switches for CNC can be cumbersome. The quality and other aspects play a vital role.
To cover all the aspects and make it easy for you, I have brought you the best options with their characteristics. Let’s dive right into it!
Our Top 10 Picks
Out of various products, finding the well-suited becomes easy when you get sifted and the best options.
The following top 10 picks will help you a lot in making the right decision and getting yourself the best product.
1. Push Button Switch Limited for CNC
Let’s get it on with the push button switch by RATTMMOTOR that is a limit switch consisting of six pcs.
This model sits on top due to many reasons. First, it is a high-quality push to stop and lock, twist to reset, and an emergency stop switch.
Secondly, this product assures high safety and reliability at the same time. Moreover, the great robust design makes it convenient to operate and long-lasting.
Lastly, the construction is quite impressive as well. The package includes one E-stop push button and six end-stop two-pin limited micro switches. Let’s have a look at its pros and cons as well.
More photos & price on amazon.com
Pros
- Sturdy design
- Good material and construction
- High-quality product
Cons
- No cons in particular
2. URBEST AC 250V 5A SPDT
URBEST Micro Switches is my follow up product. In this deal, you get ten pcs of 3 pins containing micro switches quite suitable for your CNC.
The motion type of this product is momentary and more like an actuator.
Moreover, this is a single pole double throw SPDT type of switch. Controlling the switch becomes easy by the roller arm actuator of this switch.
If the material is concerned, durable material is used in the construction of this switch.
More photos & price on amazon.com
Pros
- Wide applications
- Durable material
- Easy installation
- Actuator type and easy
Cons
- Quality can be improved
- Screw holes are fragile
3. Antrader SPDT Limit Switch Button
Next, I bring you the Antrader SPDT, a pack of 12 micro limit switch buttons. The materials used in the construction are metal and plastic.
This limit switch has wide applications, and thus, not only in CNC, you can use it in other electronic equipment as well like microwave, oven, refrigerator, etc.
To top that off, there is a hinge lever actuator with a 1NO + 1NC contact configuration.
It can be used for both AC and DC circuits. Remember that if you are a US buyer, you should take care of the voltage as well because the rating of this switch is AC 250 6amp 16amp SPDT.
More photos & price on amazon.com
Pros
- Wide usability
- Good current rating
- Suitable for both AC and DC
- Good price
Cons
- Not a long-lasting solution
- Quality can be improved
4. MXRS 3 Pin Micro Limit Switches
Now comes for you the MXRS 3 pin tact switch micro limit switch that is ideal for your CNC due to many reasons.
First, this switch has a good rating; 250V 5A and is an SPDT type. The action-type is the momentary actuator type.
Secondly, the product contains 12 pcs to cover all of your needs. Also, the fast ON and OFF feature of these switches provides you good control as well.
To top this off, there is a small contact spacing, and the switch has wide applications overall—all in all, this a good product to go for if you are looking for these features.
More photos & price on B088QTFZQG
Pros
- Wide range of applications
- Fast-break action
- 12 pcs in the pack
- Good price
Cons
- Superficial quality
- Metal levels are not sturdy
5. Gebildet 10 Pcs Micro Limit Switch
If you haven’t found your choice yet, then don’t worry as there is a lot more. So, keep reading!
This deal by Gedbildet consists of 10 pcs of high-quality micro limit switches for your limit switches.
These switches use the snap action to get operated, and the high precision mechanism makes it very good to work with.
Using this switch, you can control the ON and OFF operation real-quick without worrying about delays and stuff.
Moreover, it has a higher precision mechanism as well to keep the standard of your CNC.
More photos & price on amazon.com
Pros
- Snap action control
- Higher precision
- Good price
Cons
- Medium quality
6. UXCELL ME-8166 Limit Switch
Next on, we have the UXCELL ME-8166 that is a high-quality switch for your CNC, but it is also very expensive relatively.
You can use these switches over a wide range of applications to monitor the motion of moving parts and stuff.
Moreover, where safety and control are priorities, you can readily use this limit switch there.
The good thing about this enclosed switch is that it is very safe and reliable. To top that off, it is oil and dustproof as well at the same time.
Lastly, the installation size is quite small. Thus, all of your requirements get covered.
More photos & price on amazon.com
Pros
- Safe and reliable
- Wide applications
- Oil and dustproof
- Small installation
Cons
- High price
- There is room for improvement still there
7. Gowoops 5Pcs Limit Switch with Cable
The Gowoops end stop limit switch also contains a cable with it for 3D printer Prusa ramps 1.4, and you can use this switch for both CNC and 3D printing applications and getting good results as well.
The 22 AWG wire allows you to have a high-quality connection, and the rating is around 300V and 2A. Another good thing is that it is robust in design, and the construction is sturdy as well.
Moreover, the switch is very easy to use, and the switch has one side of the integrated plug. The package includes five mechanical end-stops for your purpose.
More photos & price on amazon.com
Pros
- Wire included for wider applications
- Easy to use
- Sturdy construction
- Good price
Cons
- The quality can be improved further
8. URBEST 2 Pcs Micro Limit Switch
Here is another deal by URBEST in which you get two pcs of good quality switches.
This switch also works on snap action, and thus a quick response can be obtained in it. The operating voltages are 220V and 110V; this increases the compatibility as well.
To top this off, this product has CCC, SGS, and CE certification as well. Check the voltage supply of your area and then buy.
All in all, you get a great design in this product that also delivers great precision. So, what else could one ask for?
More photos & price on amazon.com
Pros
- Good compatibility
- Snap action
- Good precision
Cons
- Relatively higher price per piece
9. Antrader 3-Pack AC 250V 5A
On the ninth spot, you have this good quality product for your CNC.
The three limit switches offer a double reed mechanism momentary limit switch to ensure a good life cycle.
The switches are made of good quality material, and the design is sturdy and good experience and control.
Providing safety at the same time, this switch is water and oil proof as well. Thus, you get good value for the money in this product.
More photos & price on amazon.com
Pros
- Water and oil proof
- Sustainable switch
- Long-lasting
- Double reed mechanism
Cons
- Relatively higher price per piece
10. Arceli 5 Pcs CNC Limit Switch
Last but not least, this switch by Arceli is great for your CNC and can be used for 3D printing as well. These switches, moreover, support the use of RAMPS 1.4 as well.
To top that off, you have the optical end stop that is a reliable end-stop switch for your purpose.
Thus, you get five pcs of cheap and good quality optical limit switches for your CNC. You can go for it if you are looking for this type of limit switch.
More photos & price on amazon.com
Pros
- Reliable option
- Multipurpose
- Cables are included for wide applications like 3D printing
Cons
- Quality is superficial
- Not the best choice
Buyer’s Guide
For beginners, knowing more is important. There are some aspects that you should know before going for the best limit switch for CNC.
The following aspects are what you should keep in mind before making the final call.
Snap Action
Snap action is important where you need quick actions and responses.
Thus, a limit switch should have that quick action phenomenon/feature in it. Snap action also helps in controlling the position real-quick.
Robustness
The robustness of the switch is also important both in the case of material and design.
A good design makes working efficiently while good material increases its life and make it durable as well. So, keep this aspect in mind most of the time.
Precision
CNC is all about precision and accuracy, as I mentioned earlier. So, if a switch compromises this aspect, then that is not a good choice.
You have to look for a good quality switch that provides good precision while avoiding problems.
Convenience
Operating machines is not easy. Convenience is what motivates you to work for longer on that machine.
The limit switches should be convenient and easy to use, and there should not arise any problem while merely turning the switch ON and OFF.
Compatibility
This factor is not very important, but it is good to have it.
A switch that goes on various applications is good, and you do not have to spend extra money on other jobs as you can buy a bundle of the same switch.
Budget
Whenever you go to buying something, pay attention to features and affordability.
An affordable product comprising of your desired features is always a good option. So, find yourself that option.
Frequently Asked Questions
What do limit switches do?
Limit switches are used to limit the travel of an object. They can detect the presence or absence of an object and can work accordingly.
Which circuit are the limit switches used?
Limit switches are used in control systems where motion control is a concern.
How do you hook up a limit switch?
Like digital devices, a limit switch is hooked up to the digital sidecar as one wire goes to the COM, whereas the other wire is placed either on the upper or lower end.
Can you bypass the limit switch?
Yes, you can bypass the limit switch based on your need.
What is the most basic type of limit switch?
The most basic type of limit switches is classification standard industrial oil-tight.
Is limit switch a sensor?
Yes, limit sensors are contacted sensors that consist of a mechanical actuator and a series of electrical contacts.
Is a limit switch analog or digital?
Limit sensors are digital input devices.
Can you reset a limit switch?
As these are sensors, basically, you have to reset these switches depending on the position of the reset button and bring it to the initial position.
How do I know if my limit switch is bad?
The continuous operation of the furnace blower indicates that the limit switch is bad. There can be other reasons as well, but this is the common one.
Conclusion
I have tried to cover all the necessary information to help you. The rest is up to you, and you have to choose.
I must say that you should never settle for less and always make a good call to not regret it afterward. I wish you good luck with the buying phase!
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