Water cooled spindle or air cooled spindle for CNC router?

Router is an indispensable part of CNC machines which perform high speed milling, drilling, engraving, etc.. 

But high speed rotation of the spindle relies on proper cooling. If the heat dissipation problem of the spindle is ignored, some serious problems might occur, from shorter working life to completely shutting down. 

There are two common cooling methods in CNC router spindle. One is water cooling and the other is air cooling. As their names suggest, air cooled spindle uses fan to dissipate the heat while water cooled spindle uses water circulation to take away the heat from the spindle. What would you choose? Which is more helpful? 

There are a few factors you should consider when choosing the cooling method. 

1.Cooling effect

For water cooled spindle, its temperature often remains less than 40 degree Celsius after water circulation, which means water cooling offers a choice of temperature adjustment. Therefore, for CNC machines which require long-period running, water cooling is more suitable than air cooling. 

2.Noise problem

As mentioned before, air cooling uses fan to dissipate the heat, so air cooled spindle has serious noise problem. On the contrary, water cooled spindle uses water circulation which is pretty quiet during working. 

3.Lifespan

Water cooled spindle often has a longer lifespan than air cooled spindle. With regular maintenance like water changing and dust removing, your CNC router spindle can have a longer life. 

4.Working environment

Air cooled spindle can basically work at any working environment. But for water cooled spindle, it needs special treatment in winter or at places which are pretty cold all year around. By special treatment, it refers to adding anti-freeze or heater to keep the water from freezing or rising temperature quickly, which is quite easy to do. 

Water cooled spindle often requires a chiller to provide water circulation. And if you are looking a spindle chiller, then S&A CW series might be suitable for you.

CW series spindle chillers are applicable to cool CNC router spindles from 1.5kW to 200kW. These CNC machine coolant chillers offer cooling capacity ranging from 800W to 30KW and stability up to ±0.3℃. Multiple alarms are designed to protect the chiller and spindle as well. There are two temperature control modes available for selection. One is constant temperature mode. Under this mode, water temperature can be manually set to remain at a fixed temperature. The other is intelligent mode. This mode enables automatic temperature adjustment so that the temperature difference between the room temperature and the water temperature won’t be too much. 

Find out the complete CNC router chiller models at https://www.teyuchiller.com/cnc-spindle-chillers_c5

Ultrafast laser improves glass machining

Glass machining is an important part in the production of flat panel display (FPD), automobile windows, etc., thanks to its outstanding features of good resistance to impact and controllable cost. Although glass has so many advantages, high quality glass cutting becomes quite challenging due to the fact that it is brittle. But with the demand of glass cutting is increasing, especially the one with high precision, high speed and high flexibility, many glass manufacturers are seeking new machining ways. 

Traditional glass cutting uses CNC grinding machine as the processing method. However, using CNC grinding machine to cut glass often leads to high failure rate, more material waste and decreased cutting speed and quality when it comes to irregular shape glass cutting. Besides, micro crack and crumble will occur when the CNC grinding machine cuts through the glass. More importantly, post procedures like polishing are often required to clean up the glass. And that is not only time consuming but also human labor consuming. 

Comparing with traditional glass cutting method mentioned before, the mechanism of laser glass cutting is outlined. Laser technology, especially ultrafast laser, has now brought so many benefits to the customers. It is easy to use, non-contact with no pollution and at the same time can guarantee smooth cut edge. Ultrafast laser is gradually playing an important role in high precision cutting in glass. 

As we know, ultrafast laser refers to pulse laser with pulse width of equal or less than picosecond laser level. That makes it have very high peak power. For transparent materials like glass, when the super high peak power laser is focused inside the materials, the non-linear-polarization inside the materials changes the light transmission feature, making the light beam to self focus. Since the peak power of ultrafast laser is so high, the pulse keeps focusing inside the glass and transmitting to the inside of the material without diverging until the laser power is not enough to support the ongoing self focusing movement. And then where the ultrafast laser transmits will leave silk-like traces with diameter of several micrometer. By connecting these silk-like traces and imposing stress, the glass can be cut perfectly without burr. In addition, ultrafast laser can perform curve cutting quite perfectly, which can meet the increasing demand of curved screens of the smart phones these days. 

The superior cutting quality of ultrafast laser relies on proper cooling. Ultrafast laser is quite sensitive to heat and needs some device to keep it cool at a very stable temperature range. And that’s why a laser chiller is often seen beside the ultrafast laser machine. 

S&A RMUP series ultrafast laser chillers can provide precise temperature control up to ±0.1°C and feature rack mount design which allows them to fit in the rack. They are applicable to cool up to 15W ultrafast laser. The proper arrangement of the pipeline inside the chiller can greatly avoid bubble which could otherwise impose great impact to the ultrafast laser. With compliance to CE, RoHS and REACH, this laser chiller could be your reliable partner for ultrafast laser cooling. 

For detailed information of the RMUP series ultrafast laser chillers, click https://www.teyuchiller.com/ultrafast-laser-uv-laser-chiller_c3 

Is the laser cutter power the higher the better?

Laser cutter has become quite common these days. It offers unmatched cutting quality and cutting speed, which outperforms many traditional cutting methods. But for many people who are the laser cutter users, they often have a misunderstanding - the higher the laser cutter power the better? But is it really the case?

Well, absolutely not. In terms of laser power, laser cutter can be divided into low power laser cutter, middle power laser cutter and high power laser cutter. For relatively thin stainless steel sheet and carbon steel sheet, low power laser cutter should be sufficient to perform high quality cutting while maintaining high cutting speed. Choosing the right one can help you not only improve the working efficiency but also save considerable operating cost. So what should be considered when selecting a proper laser cutter? 

1.The type and thickness of the materials to be processed

Generally speaking, the thicker the materials, the bigger the cutting difficulty. That means thicker materials require laser cutters of higher power. And there are two common types of laser cutters. One is CO2 laser cutter and the other is fiber laser cutter. For cutting non-metal materials, CO2 laser cutter is often the ideal option. And for metal materials, fiber laser cutter works better. 

2.Your budget

Many people would consider the ratio of investment and output. It is normal that the higher the power of the laser cutter, the more expensive it will be. And different configurations inside the laser cutter also lead to price difference.

But no matter what laser cutter you get in the end, there is one thing you can’t ignore - cooling problem. Either CO2 laser or fiber laser can generate heat in the operation. And the higher the power, the more heat the laser cutter would generate. If those heat continues to accumulate, it will certainly lead to serious problem like machine shut down. And a laser chiller is often the “cure” for this issue. 

S&A Chiller offers a wide variety of laser water chillers for fiber laser, CO2 laser and many other laser sources ranging from low power to high power. The cooling capacity can be up to 30KW and the temperature stability can be up to ±0.3°C. With 20 years of experience, S&A Chiller has helped many users in more than 50 countries to solve their overheating problems. Go select the ideal water chiller for your laser cutter at https://www.teyuchiller.com/products