The spindle motor of the stone engraving machine should be air-cooled or water-cooled.

 For this problem, many customers have doubts. On this issue, we will briefly introduce: First, let us know the commonality between the two: in the internal structure, the two are unified, and they all use the stator to rotate around the coil; From the control mode of the motor, the water cooling is almost always controlled by the inverter, and the air-cooled spindle is not. It can be controlled by frequency conversion and non-frequency conversion.
The difference between water-cooled main shaft and air-cooled main shaft: First, water cooling, as the name implies, uses water circulation to cool the heat generated by the high-speed rotation of the main shaft. This effect will be good, because the temperature after the water passes through the circulation (common test) will not exceed 40 degrees. The air-cooled main shaft uses a fan to dissipate heat, and its effect is certainly not as good as water cooling. Second, the noise, water-cooled main shaft is basically no noise, but the air-cooled main shaft is very loud; third, the service life, the water-cooled main shaft should pay attention to maintenance, Changing the water frequently or using an industrial water cooler, the life of the spindle is much longer than that of the air-cooled spindle! Fourth, the accuracy, the axial and radial runout of the water-cooled spindle are basically below 0.003 mm, while the air-cooled spindle (domestic) is far behind!

The difference between engraving machine and engraving and milling machine

The difference between the 958 engraving machine and the engraving and milling machine is not clear to many people. People intuitively feel that the small format is the engraving machine, the large-format engraving and milling machine, or the engraving machine, the router, or simply the large engraving machine. In fact, they are two types of machines with different structures, but the working principle is roughly the same. They are driven by three axes of X, Y and Z, and are controlled by the electronic controller.

    From the point of use: the engraving machine is mainly used for engraving of plates, and is widely used in two-color plates or acrylic engraving. The depth of engraving is about 1mm-3mm, which is more common in signs and signs. From the mechanical construction point of view, the design of the engraving machine is light, the X and Y axes move at a fast speed, and the Z-axis stroke is short, which is suitable for engraving materials of 5mm-8mm. The engraving spindle head is equipped with a spring pressure nose, which is used to flatten thin sheets of 3 mm or less during engraving. The engraving spindle is connected to a larger diameter motor by a belt to increase the rotational speed, so that the quality of the engraved workpiece is smoother. The engraving tool used is long, about 15.9 cm in length and about 4.35 mm in diameter. Due to design constraints, it is suitable for high-speed engraving processes with small cutting volumes.


    The engraving and milling machine can be understood as both fine engraving and cutting and boring. For example, for three-dimensional engraving, although the drop is very large, the 200mm wide material can be completed at one time, and the amount of one feed is quite large. The cutter diameter for the engraving and milling machine is from 1mm to 16mm, and the tool length is 50~80mm. We can use it flexibly, work with fine knives, and work with thick knives. Because the machine design pays attention to heavy load, the frame is steel and the Z-axis stroke is large, so it can not only do the process of small engraving machine, but also cut the thick plate at high speed. The amount of one-time feeding can reach 20mm-30mm. This is the engraving machine. Process manufacturing that cannot be done at all.