GUANGZHOU HAOZHI INDUSTRIAL CO., LTD.

Consultation

Product Series:Air Bearing Spindle

Product Number:DQF-250A.S

This product is a universal ultra high-speed air bearing motorizedspindle. It can also be used as the motorized spindle for the 250,000rpmdrilling machine with the capacity for drilling big holes at a low-speed andsmall holes at a high-speed with precision and efficiency.

This spindle is a motorized spindle with the built-in motor. It isbuilt-in with a three-phase variable frequency asynchronous efficient motor,with the maximum speed up to 250,000rpm. It can easily complete the drilling ofminor holes of φ0.1mm. Its torque can reach up to 0.12N·m at a speed less than30,000rpm. It can easily drill a hole of φ6.5mm at a drilling speed of 400mm/s.

1.High-precision: The spindle for PCB industry has the static rotary precision ≤ 0.002mm and dynamic precision ≤ 0.006mm (delivery standard), has the characteristic of incomparable high precision, and can achieve higher drilling CPK values.
2.High power and large torque output: Combined with the performance characteristics of driver, by adopting the design of embedded motor and the built-in three-phase variable-frequency asynchronous high-efficiency motor, it improves the output power and torque within the range of speed required by machining, and substantially enhances the machining capacity.
3.
High configuration: Motorized spindles for this industry all have theautomatic cutter change function. It also has protection functions such asmotor temperature sensor, spindle core speed sensor, etc.
4.High energy saving: On the premise of guaranteeing the performance, the gas consumption of dust-proof sealing is optimized to the minimum, in order to save the usage cost of the end users.
5.Good compatibility and good expansibility: The spindles for PCB industry have good compatibility, and can be widely used for various drilling machines and forming machines in the circuit board industry. It can also be customized according to customer needs.
6.Low failure rate: Owing to the innovative and stable design, the spindle’s stability is greatly superior to similar products; the averaged fault rate is less than 3% in the 1st year and less than 10% in the 2nd year.
7.Low maintenance rate: It adopts the pour-out tension structural design, the tension mechanism is composed by the combination the shaft handle made of high polymer materials, the disc spring with high stability and the chuck made of high-nitrogen stainless steel. The service lift of the spindle tool is up to 1,000,000 times.

8.High bearing capacity and rigidity: The front structure of the flying disc of the shaft core substantially increases the radial bearing capacity and rigidity of the spindle.



Spindle  ModelDQF-250A.S
Bearing TypeAir Bearing
Maximum Speed(rpm)250000
Maximum Voltage(V)220
(S6)Maximum  Power(kW)0.9
(S6)Maximum  Torque(Nm)0.11
APPlication ScopeDrilling Machine
Air Flow(L/min)46-54(@250000rpm)
Form of LubricationAir

    Cooling method and Medium
Internal  Cooling,Water or Oil
Weight(kg)3.5

    Dimension
    (mm)
D61.902-61.91
D173.5
D212
L223.2
L1138.5
L210




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