3.0kW - 3.5kW ATC Spindle Motor

Compact precision ATC spindle platform

3.0kW - 3.5kW ATC Spindle Motor

Model 3.0kW / 3.2kW / 3.5kW

Compact precision ATC spindle platform for CNC drilling, tapping, mold finishing, 3C parts, aluminum, copper, and other non-ferrous machining.

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Known model facts

Power range
3.0 / 3.2 / 3.5 kW
Speed range
12,000-24,000 RPM
Interfaces
BT30 / HSK 40E
Bearing groups
7007/7008 front
Confirmed source dataCore values were cross-checked against the parameter HTML, DOCX series manual, operation PDF, and current ATC category page. 3.2 kW Basic uses 400 Hz at 12,000 RPM as the rated/operating reference; no separate max-frequency value was added. Model A Standard, Model B Pro, and Model C Max support both 4P and 8P configurations. Model B Pro and Model C Max Front Length use / in the dimension table.

Product overview

This product page groups the compact CINKR ATC spindle platform from 3.0kW to 3.5kW. It covers the 3.2kW Basic BT30 spindle, Model A BT30, the higher-rigidity Model B BT30, and Model C with HSK 40E tooling.

Use the 3.2kW Basic version for cost-sensitive 12,000 RPM ATC work, Model A for general BT30 productivity, Model B when rigidity and thermal stability matter more, and Model C when HSK 40E balance and clamping security are the priority.

Electrical values must be matched to the spindle laser label and source table. The 3.2kW Basic data uses 400 Hz at 12,000 RPM as the operating reference, without a separate expanded max-frequency value.

Source highlights

Power range
3.0 / 3.2 / 3.5 kW
Speed range
12,000-24,000 RPM
Interfaces
BT30 / HSK 40E
Bearing groups
7007/7008 front

Technical specifications

Power Range
3.0 / 3.2 / 3.5 kW
Tool Interface
BT30 / HSK 40E
Speed Range
12,000-24,000 RPM
Poles
4P / 8P
Voltage
220/380 V by model
Rated Torque
3.2 / 4.0 Nm
Bearing System
7007x2 / 7005 or 7008x2 / 7005x2
Lubrication
Grease
Runout
Category reference <= 0.003 mm taper runout
VFD Control Mode
V/F Control only; no Vector Control
Cooling Flow
5-8 L/min where liquid cooling is used
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference
3.0kW - 3.5kW ATC Spindle Motor gallery reference

Features

  • Compact 100 mm body platform for smaller CNC machining centers.
  • BT30 and HSK 40E options for different tool-change and precision priorities.
  • Model A Standard and Model B Pro BT30 models for general productivity and enhanced rigidity.
  • Model C Max HSK 40E uses the larger bearing/interface structure for high-speed precision work.
  • Grease lubrication and P4-grade angular contact bearing references from the technical sources.
  • Manual-derived VFD, pneumatic, cooling, and sensor notes are included for commissioning checks.

Applications

  • Compact CNC machining centers
  • Drilling and tapping
  • Mold finishing
  • 3C component machining
  • Aluminum and copper work
  • High-speed non-ferrous cutting

Selection notes

  • Send the required power class, BT30 or HSK 40E interface, 4P or 8P preference, voltage, maximum RPM, VFD frequency range, machine photos, and material.
  • Choose Model B Pro for enhanced rigidity and thermal stability when heavier compact milling cuts are needed.
  • Choose Model C Max when HSK 40E balance and clamping security are the priority.
  • Model B Pro and Model C Max front length is marked / in the dimension table.

3.2kW 4P 220V/380V 12,000RPM

Published reference data
3.2 kW at 12,000 RPM
3.2 Nm through 12,000 RPM
No separate max-frequency value in source table

3.0kW / 3.5kW 4P 24,000RPM

Published reference data
Rated/knee speed 12,000 RPM
3.0kW ends at 2.0 Nm at 24,000 RPM
3.5kW ends at 2.52 Nm at 24,000 RPM

3.0kW / 3.5kW 8P 18,000RPM

Published reference data
220 V rated point 6,000 RPM / 400 Hz
380 V rated point 12,000 RPM / 800 Hz
Maximum reference 18,000 RPM / 1,200 Hz

Core Model Data

GroupPowerSpeedPolesVoltageTorqueInterfaceBearings F/R
3.2 kW Basic3.2 kW12,000 RPM4P220/380 V3.2 NmBT307007x2 / 7005
Model A Standard 4P3.0 / 3.5 kW24,000 RPM4P220/380 V3.2 / 4.0 NmBT307007x2 / 7005
Model A Standard 8P3.0 / 3.5 kW18,000 RPM8P220 V or 380 V3.2 / 4.0 NmBT307007x2 / 7005
Model B Pro 4P3.0 / 3.5 kW24,000 RPM4P220/380 V3.2 / 4.0 NmBT307007x2 / 7005
Model B Pro 8P3.0 / 3.5 kW18,000 RPM8P220 V or 380 V3.2 / 4.0 NmBT307007x2 / 7005
Model C Max 4P3.0 / 3.5 kW24,000 RPM4P220/380 V3.2 / 4.0 NmHSK 40E7008x2 / 7005x2
Model C Max 8P3.0 / 3.5 kW18,000 RPM8P220 V or 380 V3.2 / 4.0 NmHSK 40E7008x2 / 7005x2

Dimension Data

ModelCoverageNose Dia.Body ODFront LengthBody LengthOverall Length
3.2 kW3.2 kW 4P 12,000 RPM78 / 55 mm100 mm37 mm182 mm388 mm
Model A Standard3.0 / 3.5 kW, 4P & 8P78 / 55 mm100 mm40 mm182 mm388 mm
Model B Pro3.0 / 3.5 kW, 4P & 8P55 mm100 mm/220 mm380 mm
Model C Max3.0 / 3.5 kW, 4P & 8P78 mm100 mm/214 mm390 mm

VFD Frequency & Voltage Reference

Motor TypeVoltageRated FrequencyMax FrequencyKnee SpeedMax Speed
3.2kW Basic 4P220/380 V400 Hz400 Hz12,000 RPM12,000 RPM
Model A Standard 4P220/380 V400 Hz800 Hz12,000 RPM24,000 RPM
Model A Standard 8P 220V220 V400 Hz1,200 Hz6,000 RPM18,000 RPM
Model A Standard 8P 380V380 V800 Hz1,200 Hz12,000 RPM18,000 RPM
Model B Pro 4P220/380 V400 Hz800 Hz12,000 RPM24,000 RPM
Model B Pro 8P 220V220 V400 Hz1,200 Hz6,000 RPM18,000 RPM
Model B Pro 8P 380V380 V800 Hz1,200 Hz12,000 RPM18,000 RPM
Model C Max 4P220/380 V400 Hz800 Hz12,000 RPM24,000 RPM
Model C Max 8P 220V220 V400 Hz1,200 Hz6,000 RPM18,000 RPM
Model C Max 8P 380V380 V800 Hz1,200 Hz12,000 RPM18,000 RPM

Frequently asked questions

Can this ATC spindle be connected directly to mains power?

No. It must be driven by a correctly configured VFD. Direct mains connection can burn the coils.

Which VFD control mode should be used?

Use V/F Control mode only. The operation manual says not to use Vector Control mode.

How does the 3.2kW Basic differ from Model A Standard?

The 3.2kW Basic runs at 12,000 RPM with a flat torque curve (3.2 Nm throughout) and uses 400 Hz as both rated and max frequency. Model A Standard runs up to 24,000 RPM with 800 Hz max frequency and torque tapering to 2.0-2.52 Nm at top speed.

When should I choose Model B Pro over Model A Standard?

Choose Model B Pro when rigidity and thermal stability matter more than raw speed. Model B Pro uses enhanced body structure for heavier compact milling cuts.

What is the max VFD frequency for each model?

3.2kW Basic: 400 Hz. Model A Standard and Model C Max 4P: 800 Hz. Model A Standard and Model B Pro 8P: 1,200 Hz (220V) or 1,200 Hz (380V). Always match the VFD max frequency to the spindle laser label.

What cooling flow is recommended?

The manual-derived reference is 5-8 L/min with 8 mm OD / 6 mm ID cooling tube where liquid cooling is used.

Can tool change be triggered while rotating?

No. Tool change should only be triggered when the spindle has fully stopped.

What information should I send for model matching?

Send power class, BT30/HSK 40E interface, 4P/8P, voltage, max RPM, VFD frequency, machine type, material, and photos.

MODEL REFERENCES

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