•  Water circulates and cools the electric spindle. Water cooling does not generate wind to blow away the waste materials generated during the entire working period, which is friendly to the environment.
• The water cooling pipe or hose port is on the back of the water-cooled spindle. Either port can be used for input or output. Please ensure the water flows through the electric spindle and forms a cycle.
• The noise produced by the water-cooled electric spindle is very low. In fact, it’s quieter than the entire CNC machine.

The CNC spindle is the core role of a CNC machine. It’s used for high-speed cutting, milling, engraving, and drilling. The inverter controls the spindles; High-speed spindle rotation can generate significant heat. If not cooled in time, it will reduce the service life of the spindle, and in severe cases, the spindle can be burned out. Water-cooled spindles are a type of spindle. It can effectively use water or other coolant liquid to remove the heat generated by the spindle.

The water-cooled electro spindle system includes the collet, collet nut, bits, water pump, water pipe, water tank, and the inverter (controller) that all spindles have. Some of the coolant systems include the water cooling unit

RicoCNC has a close cooperative relationship with major suppliers of CNC router spindles, so the products we get are more affordable. It’s not just about lower prices, but also because of excellent.

Our spindle motors are supplied directly from the factory and are not purchased from the lowest-priced suppliers with unknown sources, thus ensuring known quality and reliability. All CNC Router Spindles from RicoCNC are original, with No fake.

• Increase feed speed

• Reduce cutting depth

• Use high-efficiency coolant

• Reasonably set the spraying method and position of the coolant

Solid Wood & Hard Wood

• Redwood, cherry, cottonwood, ash, oak, pine, birch, mahogany, poplar, beech, hard maple, walnut, teak, purple heart, etc.

• Soft maple, pine, fir,  redwood, etc.

• MDF, OSB, LDF, plywood, etc.

• ABS, PVC, PET,  Acrylic, etc.

Stone

• Tombstone, granite, natural marble, milestone, jade, artificial stone, etc.

Metal

• Copper, brass, bronze, honeycomb aluminum, mild steel, etc.

• Sign foam, polyethylene, polyurethane, polystyrene, EVA, styrofoam, etc.

• PCB, ren board, fiberglass, vinyl coated panels, machinable wax, mat board, butter board, gypsum, magnetic rubber mats, composites, leather, wood veneers, etc.

Please know that the materials I listed above are just a part. There are many materials that spindles can process, waiting for you to explore.

• The water-cooled spindle motor is one of the core components of high-end manufacturing equipment. Developing and applying its technology can improve the technical level and competitiveness of the entire industry.
• Promote energy conservation and emission reduction. The water-cooled spindle motor has the characteristics of efficient heat dissipation and low energy consumption. It can effectively reduce energy consumption and carbon emissions, significant for energy conservation, emission reduction and environmental protection.
• Supporting the development of the high-end equipment manufacturing industry. The water-cooled spindle motor is an essential foundation for the high-end equipment manufacturing industry. Its development can promote the progress of the entire industry. The water-cooled spindle motor industry has experienced a transformation from traditional oil-cooling technology to water-cooling technology. With the continuous advancement of technology and the expansion of application fields, the water-cooled spindle motor industry has gradually become one of the essential development directions in the manufacturing industry.
• In the future, with the continuous innovation of technology and the expansion of application fields, the water-cooled spindle motor industry will continue to maintain a rapid development trend and develop in the direction of higher precision, higher efficiency and longer life. At the same time, with the improvement of environmental awareness and the intensification of energy consumption, the energy-saving and environmental protection characteristics of water-cooled spindle motors will receive more attention.

• Grease lubrication: Fill the bearing with grease for lubrication. This method is relatively simple. Most spindle bearings are already lubricated when leaving the factory and do not need to be lubricated in the future, except if the spindle is broken or repaired.
• Oil mist lubrication: Lubricate by atomizing the grease and spraying it onto the bearings. This method has a better lubrication effect, but it requires an oil mist machine
• Oil-air lubrication: Lubricate by mixing lubricating oil with compressed air. This method can achieve automatic lubrication but requires an oil-air lubrication system.
• Splash lubrication: Lubricate by splashing oil onto the bearings. This method is simple, but the lubrication effect is relatively poor.

The electro spindle comprises a motor, spindle, bearings, spindle unit housing, drive module, and cooling device. The motor’s rotor is integrated with the spindle by press fitting, and the spindle is supported by front and rear bearings. The motor’s stator is installed in the housing of the spindle unit through a cooling sleeve. The spindle drive module controls the speed variation of the spindle, and the cooling device limits the temperature rise within the spindle unit. Speed and angular displacement sensors are installed at the rear end of the spindle, while the front end’s internal taper hole and end face are used for tool mounting.

The air-cooled spindle uses the movement of the motor and the flow of air to produce a hot and cold effect to achieve high-temperature cooling of the spindle. High-pressure air cooling is formed by blowing cold air into the spindle. An excellent air-cooled electro spindle has a good cooling effect and the advantages of energy saving and environmental protection. It is suitable for various processing industries.

1. Selection steps

• Determine the application field and processing object;
• Determine the maximum power, speed, torque and other performance parameters required for processing;
• Determine the accuracy requirements according to the processing quality requirements, such as radial runout, axial runout, etc.;
• Select the type that suits the processing requirements, such as single electric spindle, dual electric spindle, multi-head electric spindle, etc.;
• Comprehensively consider the external dimensions of the electric spindle based on power supply voltage, speed, installation method, etc.

•  Power: mainly refers to the power consumed when the machine rotates. The greater the power, the higher the processing efficiency;
•  Speed: The speed determines the accuracy and quality of the processing. The appropriate speed should be selected according to the characteristics of the processing object;
• Torque: The greater the torque, the higher the load-bearing capacity of the electric spindle. When processing parts, the torque must meet the processing needs;
• Accuracy: Accuracy refers to the runout of the rotating axis of the electric spindle. It is generally divided into radial runout and axial runout. The higher the accuracy, the higher the accuracy of the processed parts.

3. Precautions

• Before purchasing, you must understand the processing object and its characteristics and determine the required performance parameters;
• Try to avoid electric spindles that exceed your own needs, which can save costs and prevent waste of resources;
• During use, pay attention to maintenance and usage methods to ensure the normal life of the electric spindle.

The air-cooled spindle uses the movement of the motor and the flow of air to produce a hot and cold effect to achieve high-temperature cooling of the spindle. High-pressure air cooling is formed by blowing cold air into the spindle. An excellent air-cooled electro spindle has a good cooling effect and the advantages of energy saving and environmental protection. It is suitable for various processing industries.

1. The high-speed motor inside the water-cooled spindle uses an inverter as the driving power supply. It is strictly forbidden to connect it directly to the grid voltage; otherwise, it will cause direct damage to the high-speed motor and water-cooled spindle
2. When driving with an inverter, the built-in parameters of the inverter must be correctly set (the parameters set by the inverter at the factory are usually not suitable for high-speed motors, so the inverter must be reset), ensuring that the reference frequency (turn frequency) and the maximum frequency and output voltage are consistent with the parameters required by the high-speed motor so that the inverter parameters match the high-speed motor parameters and usually operate.

• When ordering, please tell us the motor model, power, voltage, reference frequency, and installation type to our team members. We will give you a satisfying answer

1. The electric spindle and the inverter shall suit each other. The specifications and parameter settings of the inverter shall match the nominal parameters of the spindle, and it will burn the spindle if the settings are not correct
2. Before using a water-cooling spindle, it shall ensure that the cooling cycle system usually works and that running under no cooling conditions is prohibited. The volume of cooling water is calculated as per 1 liter/hw minute. The minimum flow of cooling water is at least 5 liter/minute; the cooling water pipe and the nozzle shall be connected reliably, and there is no leakage.
3. The cooling liquid shall be clean and grease-free, and the temperature shall be within 5-30℃. The cooling medium shall conduct force cooling when the ambient temperature exceeds 30 C. The precision lathe requires the cooling liquid with a constant temperature of 20±2℃.
4. During storage and transport of the spindle, the status of high-speed grease inside the bearing will change; the user shall run it at a low speed first by starting from the lowest speed of the spindle for 30 minutes and then 20 minutes for every 3000 rounds. Otherwise, abnormal sounds, noise, heat, and other phenomena will affect the bearing life if the spindle is started directly at a high speed. During long-term storage, the spindle shall run (at low speed) for 15-30minutes once a week at least
5. Collet, nut and inner taper hole shall be washed clean when installing blades on the spindle to avoid any impact on the precision. The blade handle shall be inserted into the collet more than 15mm.
6. For daily machining, the spindle shall be warmed up, run for15-20 minutes when the machining speed is reached and then performed precise machining; it is better to stop the spindle for two hours every day to recover its mechanical fatigue and prolong its lifetime
7. No knocking the end cover of the spindle, No hammering the collet and blade head when removing blades.No. No shocking or colliding during transport, storage and use, especially at the end of the spindle.
8. The spindle shall run in the designated direction.
9. The spindle shall be installed and fixed according to the relevant drawings and instructions
10. The temperature shall be within 20-26℃ if a water-cooling machine is used.
11. The spindle adopts a vapor lock, and the gas source shall only be used once it has passed the oil-water separator and dry filter. The air pressure is 0.2-0.25MPa, and the filtering precision is 5μm. Otherwise, there will cause damage to the bearing

1. The CNC router spindle installation method must be reliable and must be equipped with corresponding safety protection devices
2. During the operation of the CNC spindle, it is forbidden to touch the rotating part. Otherwise, it may cause serious personal injury and property loss
3. Reasonable use, operation, and daily maintenance otherwise it may cause personal injury and property loss
4. If abnormal changes such as temperature, vibration, abnormal sound, triggering of monitoring devices, etc., are found during the operation of the spindle, the machine should be stopped immediately and checked

• The water-cooled spindle is installed in the machine base, and the spindle shell is slidably matched with the machine base mounting hole. Clamping it in the front and rear bearings is strictly forbidden to prevent the bearing chamber from deforming. If stuck in the bearing, it will cause premature damage. The clamping force should not be too large, and the electric spindle should not be loose when installed in the machine base.

• Use dry compressed air to blow and clean the water-cooled spindle;
• Remove the water pipe connected to the spindle and clean it with cleaning tools and chemical descaling solution;
• For severe blockage, you can use a weak acid aqueous solution for flushing.

If your spindle is equipped with a chiller and the chiller is blocked, then scale is the main culprit. In addition to correct operation in daily use, the circulating water should be purified regularly to ensure the cleanliness of the water. This can greatly reduce the risk of blockage of water-cooled spindles and chillers. Some daily maintenance methods can be used:

1. Check the filter and pipes regularly, and clean or replace the circulating water as needed.
2. Pre-treat the water tower and tap water to filter their dust and impurities effectively.
3.  Once blockage is found, physical and chemical methods should be used to clean it in time to prevent excessive accumulation of impurities and scale.

• Water flow rate is too slow

A slow water flow rate will cause the spindle temperature to rise, leading to unstable spindle stroke, decreased precision, and other problems. The solution can be started from the following aspects: check whether the water pump is working correctly, clean the water pipes and filters, and replace the coolant.

• Water flow rate is too fast

The water flow rate is too fast, which will cause condensation, water rust, and other problems, affecting the spindle’s operation and life. The solution can be started from the following aspects: install a water flow control valve, avoid water pipe bends, and use filter elements to set up water filtration.