What are the different requirements for machines with different rotational speeds in cnc lathe?

Hello everyone, this is HANBS and I'm Sonay.

Today I'm here to talk to you about swiss lathe rpm. In fact, we all know that swiss cnc lathe from the beginning of 200 revolutions per minute to now tens of thousands of revolutions per minute, the difference is very big, the performance of the machine and the requirements of the product have changed. So let's take a look at the differences between them.

Luckily, most of the Swiss lathes in the HANBS factory are tens of thousands of rpm machines, and we have plenty of examples to prove the difference between them. Take the HS-320 as an example. It can reach a maximum speed of sixty thousand revolutions per minute. Let's take a look at them at work~

Above is how the HS-320 works. It can reach 60,000 rpm to control and manage the precision of the product, so that the product has a higher surface finish and processing efficiency. But there are some places to pay attention to in order to reach such a high speed:

Spindle Design: High speed spindles often utilize air bearings or oil film bearings to reduce friction and heat generation to support higher speeds. These bearings are capable of maintaining stability and accuracy at very high speeds.

Materials to be machined: Higher speeds are particularly suited to machining materials such as aluminum alloys, brass, titanium alloys, and certain high-strength plastics. These materials have excellent cutting performance at high speeds, resulting in extremely high surface finishes.

Small Diameter Workpieces: Swiss-type CNC lathes are primarily used for machining long, thin, small diameter workpieces. The high speeds help to reduce cutting forces during machining and avoid bending or vibration of the workpiece.

Cooling and Lubrication: At such high speeds, the heat generated during machining can increase significantly. To prevent overheating of the workpiece and to maintain tool life, it is often necessary to use efficient coolant systems or atomized cooling.

Tool selection: Use high-quality carbide tools or coated tools that have better wear resistance and cutting performance at high RPMs.

Only when the above conditions are met, can the machine reach 60,000 RPM, the average machine may not be able to withstand the consequences that high RPM brings to them. (Please do not modify the machine without the appropriate configuration)

Usually, Swiss lathes with more than 10,000 rpm are used for machining small diameter workpieces or parts that require a very high surface finish. But don't lathes with other speeds have a role to play? Not really. Let's take a look at what lathes with low and medium speeds are used for!

Let's take another machine as an example, the W-20, also from the HANBS factory, which is not a swiss type cnc lathe but a five-cutter simultaneous motion precision CNC lathe. It is not a swiss type cnc lathe, but a five tool simultaneous motion precision CNC lathe, but it usually runs at 6,000 rpm. The precision of the product is not as good as swiss type cnc lathe, but it is faster and has more tools, so it is possible to have more than one type of tools moving together. Let's take a look at how it works.

Compared with swiss type cnc lathe, the differences between them are more obvious:

1. Machining materials and workpiece types

Harder materials: low to medium speeds are usually suitable for machining difficult materials such as stainless steel, titanium alloys, tool steels, etc. The low speeds reduce the amount of cutting required during the machining process. The low RPM reduces the heat generated during the cutting process and reduces tool wear.

Larger diameter workpieces: Low and medium speed lathes are capable of machining larger diameter workpieces in a stable manner, which is especially important in situations where greater cutting forces and stability are required.

2. Spindle design

More power: Compared to high speed Swiss-type CNC lathes, low and medium speed models are often equipped with more powerful spindle motors to provide enough cutting power to handle larger depths of cut and hard materials.

More Rigid: These lathes are usually more structurally rigid to cope with the higher cutting forces generated at lower speeds and to ensure stability during machining.

3. Tool life

Extended tool life: Low to medium speeds help to extend tool life because lower cutting speeds reduce thermal loads and wear on the tool, especially when machining high hardness materials.

4. Surface finish

Moderate surface finish: Although low to medium speeds do not provide as high a surface finish as higher speeds, they are adequate for many applications, especially on parts requiring high strength and durability.

5. Cooling and Lubrication

Higher cooling requirements: Despite the lower speeds, coolant is still important when machining harder materials to prevent overheating and distortion of the workpiece and to ensure dimensional accuracy.

6. Application scenarios

High-volume production: When large quantities of larger or complex parts need to be produced, the Swiss-type CNC lathe with its low to medium RPM is ideally suited because it can run steadily for long periods of time, maintaining a high level of consistency.

Medical equipment, aerospace and other industries: These industries often require high precision parts made of harder materials, so Swiss-type CNC lathes with low to medium RPM are widely used in these areas.

7. Stability and precision

Higher Stability: The machining process is more stable at low and medium speeds, reducing the vibration problems that can be encountered at high speeds and helping to improve the dimensional accuracy of the workpiece.

Overall, the difference between them before is still very obvious, as far as the machine speed is concerned, nowadays many people will choose the swiss type cnc lathe with high rotational speed, because it can not only guarantee the precision and quality of the products, but also its production speed is very fast. If you want to ensure the precision of your products and also need to produce large quantities, then swiss type cnc lathe can be your first choice.

Above is all we know about swiss cnc lathe in terms of rotational speed, I hope this article can help people in need. We will see you next time. See you next time.