This 3.5kW spindle and VFD kit is built for medium to heavy-duty CNC routing and milling. The air cooled square spindle provides excellent rigidity and smooth high-speed cutting without the need for water cooling. Paired with the HY 4kW VFD, this kit offers precise spindle speed control and reliable performance for demanding machining applications.
A 13-piece ER20 collet set is included, allowing a wide range of tool sizes to be used.
Includes:
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1× 3.5kW Air Cooled Square Spindle
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1× HY 4kW VFD
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1× ER20 13pc Collet Set
Spindle Specifications:
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Power: 3.5kW
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Voltage: 220V
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Current: 12A
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Collet System: ER20 (13-piece set included)
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Bearings: 7005DB + 6002DT (High Precision)
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Speed: 0–18,000 RPM
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Frequency: 0–300Hz
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Runout: < 0.005mm
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Cooling Method: Air Cooled
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Body Style: Square
VFD Specifications (HY 4kW):
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Model: HY Huanyang
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Power Rating: 4kW
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Input Voltage: 220V (Single Phase)
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Output Voltage: 220V (Three Phase)
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Frequency Range: 0–400Hz
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Use: CNC Spindle Speed Control
