NK Engineering Services supplier of PCB Drilling spindles, CNC Spindles, CNC ATC Spindle Motor, Water Cooled Spindle Motor, CNC Router spindle, Milling spindles, Bangle engraving spindles

Model no.: ISO20-4kw

With a rich experience of spindle motors, NK Automations provide High frequency Spindle with ultra-hybrid ceramic bearings for précised CNC machine applications like CNC Milling, CNC Engraving, CNC bangle engraving, Machining of high precision auto parts, Sheet metal Cutting and The spindle is very high duty and high performance.

Also it has superior quality, enhanced reliability, smooth motion and balancing stability.

The spindle structure is a fast-automatic tool change mechanism, and the tool holder is equipped with ISO20-er16

NK Spindles 4kw and 40,000 rpm High frequency Spindle with Ultra hybrid ceramic bearings has a robust construction and highly précised and is in accordance with set industrial standards. High overload capabilities and high operation speed range are distinctive features of our Spindle Motors offering exceptional dynamic performance.

Application:

CNC Milling Machine
CNC Router
CNC Bangle Making Machine
CNC Denture Machine
CNC Mobile tempered Glass making Machine
CNC Glass Grinding
In Robotics arm for machining automobile Components

With a compact design at high speed, low noise, long and stable operational life. NK Automations spindles for CNC machines heavily built and heavy duty spindles. With rpm up to 40,000 rpm range, motor power as per requirement, and static runout: ≤2.0μm, the spindle is ideal for CNC Bangle engraving, sheet cutting, PCB drilling and routing, dentures making, mobile cover making and other similar applications.

Other features includes superior quality, enhanced reliability, smooth motion and balancing stability. The spindles are capable of completing very complex tasks very easily.

High precision: dynamic precision≤8μm, static precision≤2μm, shaft rotation runout≤1μm.
Small volume, small inertia, small heat variables.
Balance Grade: G0.4, low vibration, low noise.
High configuration: quick ATC system, optional temperature sensor, super precision ceramic ball bearing.
Low failure rate: Precision design, simple structure and easy maintenance.
Dustproof and waterproof: The front end of spindle adopts a multi-layer labyrinth structure to improve the dust sealing and waterproof effect.
High rigidity: Built-in motor, the front bearing seat and the spindle are integrated, and the overall rigidity and the coaxial precision are greatly improved.

Model	ISO20-40B	Max speed （rpm）	40000	Max frequency （Hz）	1333
Max voltage (V)	220	Rate current （A）	12.5	Rated power （Kw）	4.0
Max torque Nm	1.3	Max current （A）	18	Max power （Kw）	5.0

item	Name	Value	note
1	Bearing lubrication	Grease
2	Standard tool holder	ISO20shank-ER16
3	Number of broach	More than three million
4	spindle discharge pressure	0.5-0.6	MPa
5	Spindle pinch pressure	0.5-0.6	MPa
6	Air pressure	0.2-0.25	MPa
7	Spindle blowing air flow	30±10	L/min
8	Spindle gas seal pressure	0.2-0.25	MPa
9	Spindle Gas sealed gas flow	50±10	L/min
10	Cooling water pressure	0.25-0.4	MPa
11	Cooling water flow	2-3	L/min
12	Cooling water temperature	24-28	℃
13	Radial stiffness of spindle	≥80	N/μm
14	Axial stiffness of spindle	≥70	N/μm
15	Full runout of the inner Cone of the spindle end	≤0.001	mm
16	Static bias of spindle end	≤0.002	75mm
17	Spindle Vibration value	≤0.8	mm/s

18	Spindle assembly diameter	Φ80 0/-0.019	mm
19	Noise value	≤72	dBA
20	Tool holder Tightening force	1100(max)	N
21	Insulation resistance of motor	≥500
22	Pressure test of motor winding	1500V/min disruptive test

CNC ISO20 4kw Spindle Motor

Model no.: ISO20-4kw

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