Product catalog
ATC Spindle Motors
Compare standard ATC spindle configurations for CNC router and machining center integration. The full range is focused on BT30 and HSK40E products, covering Basic, Model A, Model B, and Model C platforms in 100 mm and 125 mm body sizes.
Tool holders
Select by tool holder family
Choose between BT30 for our standard production range and HSK40E for high-precision machining center requirements.
BT30 ATC Spindle Motors
9modelsBT30 automatic tool change spindle motors for CNC router and machining center integration, covering 100 mm and 125 mm body sizes with air and liquid cooling options across the current standard range.
View spindle options
HSK40E ATC Spindle Motors
4modelsHSK40E automatic tool change spindle motors for high-speed precision machining, available in 100 mm and 125 mm body sizes across the current Model C range.
View spindle optionsProduct overview
All ATC spindle models
Explore the complete range of BT30 and HSK40E spindle motors, including Basic, Model A, Model B, and Model C series with fully detailed technical parameters.
Product filters
Filter by interface, power, diameter, series, and cooling.
Showing 1-12 of 13 models
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Tool holder
Choose by tool-holder interface
Choose the spindle family by tool-holder interface: BT30 for standard production applications, or HSK40E for high-speed precision requirements.
BT30
9 modelsBT30 options for standard CNC routing and machining applications from 3.0 kW to 7.5 kW.
BT30
9 modelsBT30 options for standard CNC routing and machining applications from 3.0 kW to 7.5 kW.
- Basic BT30 100mm 3.2KW 12000RPM100mm / 3.2 kW / 12000 RPM
- Model A BT30 100mm 3.5KW100mm / 3.5 kW / 18000 / 24000 RPM
- Model A BT30 100mm 3KW100mm / 3.0 kW / 18000 / 24000 RPM
- Model A BT30 125mm 5.5KW125mm / 5.5 kW / 18000 / 24000 RPM
- Model A BT30 125mm 7.5KW125mm / 7.5 kW / 18000 / 24000 RPM
- Model B BT30 100mm 3.5KW100mm / 3.5 kW / 18000 / 24000 RPM
- Model B BT30 100mm 3KW100mm / 3.0 kW / 18000 / 24000 RPM
- Model B BT30 125mm 5.5KW125mm / 5.5 kW / 18000 / 24000 RPM
- Model B BT30 125mm 7.5KW125mm / 7.5 kW / 18000 / 24000 RPM
HSK40E
4 modelsHSK40E options for high-speed precision machining in 100 mm and 125 mm body sizes.
HSK40E
4 modelsHSK40E options for high-speed precision machining in 100 mm and 125 mm body sizes.
Spindle platform
Compare by series and body size
Compare series and body size to match machine rigidity, mounting envelope, and power requirements.
Basic / 100mm
1 modelsBaseline BT30 configuration focused on the fixed 3.2 kW / 12000 RPM specification.
Basic / 100mm
1 modelsBaseline BT30 configuration focused on the fixed 3.2 kW / 12000 RPM specification.
Model A / 100mm
2 modelsBalanced production platform with both 100 mm and 125 mm body sizes.
Model A / 100mm
2 modelsBalanced production platform with both 100 mm and 125 mm body sizes.
Model B / 100mm
2 modelsBT30 platform positioned for higher-speed routing and lighter cutting loads.
Model B / 100mm
2 modelsBT30 platform positioned for higher-speed routing and lighter cutting loads.
Model C / 100mm
2 modelsHSK40E platform for higher-balance automatic tool change work.
Model C / 100mm
2 modelsHSK40E platform for higher-balance automatic tool change work.
Model A / 125mm
2 modelsBalanced production platform with both 100 mm and 125 mm body sizes.
Model A / 125mm
2 modelsBalanced production platform with both 100 mm and 125 mm body sizes.
Model B / 125mm
2 modelsBT30 platform positioned for higher-speed routing and lighter cutting loads.
Model B / 125mm
2 modelsBT30 platform positioned for higher-speed routing and lighter cutting loads.
Model C / 125mm
2 modelsHSK40E platform for higher-balance automatic tool change work.
Model C / 125mm
2 modelsHSK40E platform for higher-balance automatic tool change work.
ATC Spindle Motor Selection Guide
Choosing the right ATC spindle motor depends on three key factors: tool-holder interface (BT30 vs HSK40E), body diameter (100 mm vs 125 mm), and power rating (3.0 kW to 7.5 kW). Use the comparison below to match a spindle to your CNC router or machining center.
BT30 ATC Spindles
- Interface: Steep taper (BT30)
- Best for: General CNC routing, wood, plastic, aluminum
- Power range: 3.0 kW to 7.5 kW
- Available platforms: Basic, Model A, Model B
- Body sizes: 100 mm and 125 mm
HSK40E ATC Spindles
- Interface: Hollow-shank taper (HSK-E40)
- Best for: High-speed precision machining, steel, mold making
- Power range: 3.0 kW to 7.5 kW
- Available platforms: Model C
- Body sizes: 100 mm and 125 mm
BT30 vs HSK40E: Which ATC Spindle Is Right for You?
BT30 is the industry-standard interface for CNC router spindles up to 7.5 kW, offering wide tooling availability and simpler maintenance. HSK40E provides face-and-taper dual contact for higher clamping force and better repeatability at high speeds, making it the preferred choice for precision machining centers.
Frequently Asked Questions About ATC Spindle Motors
What is the difference between BT30 and HSK40E ATC spindles?
BT30 uses a steep taper interface suited for general CNC routing and milling. HSK40E uses a hollow-shank interface with face contact, offering higher rigidity, better repeatability, and suitability for high-speed precision machining centers.
How do I choose between 100 mm and 125 mm body diameter?
100 mm spindles are lighter and suit machines with limited Z-axis clearance and moderate cutting loads. 125 mm spindles offer higher rigidity and torque capacity for heavy cutting. Match the body diameter to your machine's mounting bracket and the material you primarily cut.
What VFD do I need for an ATC spindle motor?
ATC spindles require a VFD matched to the motor's rated voltage (220V or 380V), power (kW), and maximum frequency (typically 400-800 Hz). We recommend the BD612 series VFD configured for sensorless vector control with braking resistor support for tool-change operations.
Are these spindles water-cooled or air-cooled?
All current ATC spindle models in our catalog are water-cooled. Water cooling provides superior thermal stability during long machining cycles and quieter operation compared to air-cooled alternatives.
Can I get a quote for a specific spindle model?
Yes, visit the ATC spindle quote page with your model number, quantity, and shipping destination. We respond with pricing and lead time within 24 hours.
How do I wire an ATC spindle motor to a VFD?
Connect the spindle's U/V/W power leads to the VFD output terminals, wire the tool-change solenoid to a relay output, and configure VFD parameters for the motor's rated voltage, current, base frequency, and max frequency. Refer to our wiring guide for step-by-step instructions.
ATC Spindle Technical Guides
Explore our detailed technical resources to help you select, install, and maintain your ATC spindle motor.
What Is an ATC Spindle Motor?
Learn the basics of automatic tool-change spindle technology.
BT30 vs HSK40E Comparison
Detailed side-by-side comparison of tool-holder interfaces.
Power & Body Size Selection
Match power rating and body diameter to your application.
Water-Cooled vs Air-Cooled
Compare cooling methods for spindle longevity and performance.
VFD Wiring Guide
Step-by-step wiring instructions and parameter settings.
Request a Quote
Get pricing and lead time for your spindle configuration.
Need help matching a spindle to your machine?
Tell us your specifications and we'll help you find the right ATC spindle.