Spindle

• Integrated electric spindle, features a compact structure and zero transmission loss, with characteristics of high rotational speed, high precision, high rigidity, high efficiency, and low vibration.

• The power can be customized on demand, covering 800 W to 6 kW, to meet different processing load requirements.

• With a rotational speed range of 0-60,000 RPM and support for stepless vector speed control, it can significantly increase the material removal rate per unit time and improve the overall processing speed of CNC equipment.

• It can be customized with various spindle end connections such as ER8, ER11, ER20, ER25, and ER32 to meet diverse tool clamping needs.

• It adopts four NSK hot-pressed silicon nitride ceramic bearings. Compared with steel balls, they have 60% lower density, which can greatly reduce centrifugal force; 50% higher modulus, resulting in higher rigidity; a smaller coefficient of thermal expansion, leading to minimal preload variation under high temperature and high speed for more stable operation; a lower friction coefficient, which can reduce bearing heating, wear, and power loss; and excellent wear resistance, ensuring a longer bearing service life.

• The collet is made of 65Mn manganese steel. After quenching and tempering heat treatment⁷, its Rockwell hardness reaches HRC 44-48, and the yield strength is ≥800 MPa⁸. Fatigue tests show that after 100,000 clamping cycles, the hardness attenuation rate is <5%, and the radial deformation of repeated clamping is ≤0.002 mm³.⁹

• Through optimizing the layout of shell ribs via finite element analysis, combined with high-precision ceramic bearings and dynamic balance correction, the noise during no-load operation is controlled at approximately 60 decibels, ensuring stable and quiet operation.

• It uses lubricating grease resistant to 200°C high temperature, which has strong oxidation resistance, low evaporation loss, and excellent extreme pressure and anti-wear properties. This can effectively reduce maintenance frequency and ensure the stable operation of the spindle under high-speed and high-temperature working conditions.

Air-Cooled Spindle

The air-cooled spindle adopts a heat dissipation solution with fan-forced cooling. It requires no external water circuit, featuring a simple and compact structure, convenient installation, and low maintenance costs.

Advantages and Features

• Adopts a combination of angular contact ball bearings and deep groove ball bearings¹⁰. Angular contact ball bearings provide excellent rotational precision, high rigidity, and strong axial load capacity.

• Utilizes a square, high-strength, lightweight aluminum alloy housing with higher thermal conductivity and a larger heat dissipation surface.

• Equipped with an 85mm-diameter enhanced axial fan made of polypropylene (PP) + glass fiber. Optimized for aerodynamics, the fan’s blade shape, quantity, and angle are designed to achieve higher airflow rate and air pressure, improving heat dissipation efficiency. It can also inhibit fan blade deformation at high temperatures while maintaining light weight.

• Customizable with various specialized spindles, such as the specialized spindle for planers. This spindle has undergone exclusive optimization and design for planing operations: its rated maximum speed is limited to 12000 RPM, and its torque can reach 5.9 N·m, making it more suitable for heavy-load scenarios such as planing. The heat dissipation fins on the housing effectively increase the heat dissipation area, further enhancing the spindle’s heat dissipation performance.

Water-Cooled Spindle

The water-cooled spindle achieves efficient heat dissipation via liquid cooling circulation, supports long-duration high-load machining, and delivers excellent thermal stability at high rotational speeds.

Advantages and Features

• It adopts a smooth-surfaced, fully sealed cylindrical high-strength stainless steel housing, which offers unparalleled durability, stability, and resistance to harsh environments. It is rust-proof, corrosion-resistant, and resistant to physical damage.

• All four bearings are angular contact ball bearings¹¹. Angular contact ball bearings provide excellent rotational precision, high rigidity, and strong axial load capacity.

• Equipped with H17/H20 aviation connectors, it features high reliability, outstanding protection (IP67 protection class), vibration resistance, resistance to plugging and unplugging, high current-carrying capacity, and a foolproof design. These features ensure absolute stability of power and signal transmission for the spindle under harsh working conditions, significantly reducing downtime due to faults.

• The interior of the spindle is designed with a spiral surrounding water channel, which tightly wraps around the spindle stator. This design maximizes the contact area and contact time between the coolant and heat sources, ensuring that the heat generated by the spindle during high-speed rotation is fully and efficiently absorbed, thus preventing the spindle from overheating.

• The water cooling system boasts extremely high heat dissipation efficiency. Even during long-term full-power operation, it can stably control the temperature within 40°C, making it more suitable for long-duration wood carving work and enabling 24/7 continuous operation.

Spindle for 5-Axis Machining Center

It is suitable for 5-axis machining centers. Four types of tools can realize high-speed switching, making it especially suitable for efficient machining of complex processes and featuring exceptional cost-effectiveness.

Core Configuration

• Power Configuration:

  Industrial-grade rated power: 7.5kW (max. customizable to 15kW permanent magnet synchronous spindle), optimized specifically for 5-axis linkage woodworking machining centers. It is particularly suitable for high-torque scenarios such as mortise and tenon structure machining.

  Windings with IP54 protection class, ensures stable power output in wood chip environments.

• Bearing System:

  8 sets of silicon nitride ceramic ball bearing assemblies, certified to the ISO 15243-2017 standard. At 12000rpm, their service life reaches 300% that of traditional steel bearings.

• Structural Design:

  Double-ended spindle stacking design, equipped with four spindle end connections, enabling simultaneous installation of four tools.

  Active air cooling technology, eliminates the internal fan structure, saving the fan’s mounting gap and heat dissipation gap. Compared with fan-type forced cooling, this technology can reduce the spindle length by 15cm. The smaller spindle size enhances its compatibility installation environments and allows it to adapt to more special or complex machine tool installation requirements.

Other Configuration

• Machine Body Material:

  Adopting a high-strength stainless steel housing, its rigidity, thermal stability, and corrosion resistance are significantly superior to those of aluminum alloy. This design effectively reduces deformation during heavy cutting and ensures stability in long-term continuous machining as well as adaptability to harsh environments.

  Key Indicato	Stainless Steel	Aluminum Alloy	Significance
  Rigidity	Modulus of Elasticity ≈ 200 GPa	Modulus of Elasticity ≈ 70 GPa	During heavy cutting (e.g., hardwood processing, deep relief carving), it effectively avoids tool path deviation or vibration marks caused by spindle deflection.
  Thermal Stability	Coefficient of Thermal Expansion (CTE) ≈ 10-15 μm/m·°C	Coefficient of Thermal Expansion (CTE) ≈ 23 μm/m·°C	Smaller thermal deformation during high-speed operation, and the impact on spindle bearing preload is more controllable.
  Corrosion Resistance	Oxide Layer: Al₂O₃	Oxide Layer: Cr₂O₃	Some wood materials (e.g., oak, walnut) contain tannic acid and resin, which easily generate acidic vapor in humid environments. Long-term exposure may cause pitting corrosion or oxidation in aluminum. However, the passive film of stainless steel (especially 316 series with chromium/molybdenum) can fully resist such corrosion.

• Thermal Management Solution:

  Active Air Cooling System, Equipped with a directional compressed air channel design, the compressed air specification is 6bar@200L/min. Compared with traditional air-cooled spindles, this system improves heat dissipation efficiency by 20% and can control the continuous machining temperature rise within ΔT ≤ 30℃.

  The combination of a closed air intake pipeline and a one-way air outlet valve ensures excellent airtightness of the system, which can effectively block dust and machining chips from entering the spindle interior, protect precision internal components, and extend the spindle service life.

• Machining Capacity Configuration:

4-Station ER40 Tool Holder: Supports a maximum tool clamping diameter of φ26mm (compliant with ISO 15488-B standards).

Rapid Tool Change Solution: Can install 4 different types of tools simultaneously, with tool switching on demand via rapid rotation.

• 5-Axis Machining Compatibility:

Control System: Cooperate with a 5-axis CNC system featuring RTCP (Rotational Tool Center Point) function, can enabling optimal motion compensation.

Machining Capacity: Supports continuous surface machining at ±90°, with a repetitive positioning accuracy of 0.01mm. It is particularly suitable for precision milling and shaping of various complex European-style curved furniture and furniture accessories.