Motorized CNC Machine Spindles
As a motorized spindle manufacturer, Milwaukee MachineTool can help evaluate spindle series, motor power, operating speed and drive requirements for new CNC machines, OEM equipment or replacement applications. Contact our team to discuss a motorized spindle assembly for your machine.
What Is a Motorized Belt-Driven Machine Spindle?
A belt-driven motorized spindle pairs a machine spindle with an electric motor through a belt-drive arrangement. Motor speed and the selected belt ratio determine how power is transferred to the spindle, giving machine builders flexibility when configuring operating speed and horsepower for a specific machining application.
Milwaukee MachineTool motorized spindle options use defined NEMA motor frame sizes with available belt-drive ratios ranging from 2:1 to 1:2 across the configurations listed in the current performance table. This approach provides an alternative to a direct-drive motorized spindle while allowing the motor and spindle to remain separate components within the machine design.
Milwaukee MachineTool Motorized Spindle Series
Milwaukee MachineTool offers seven motorized spindle series for CNC equipment, OEM machinery and custom production systems. Available configurations combine block or cartridge spindle platforms with belt-driven electric motors, giving machine builders multiple options for different installation, machining and performance requirements.
- MC1875 Series: Compact motorized machine spindle option for CNC equipment with tighter machine envelopes and lighter spindle requirements.
- MC/MB275 Series: Versatile CNC motorized spindle configurations available with cartridge or block spindle construction for precision machining equipment.
- MC/MB35 Series: Belt-driven spindle options for production machinery requiring a balance of compact packaging, spindle capacity and motor-driven performance.
- MC/MB40 Series: Motorized spindle assemblies for CNC machines requiring increased power capacity across production machining and OEM equipment.
- MC/MB55 Series: Higher-capacity electric spindles for CNC machines used in more demanding machining systems and custom production equipment.
- MC/MB65 Series: Heavy-duty motor-driven revolving spindle options for machinery requiring greater spindle capacity and robust belt-driven performance.
- MC/MB80 Series: Large motorized spindle assemblies for higher-capacity CNC machinery, OEM systems and demanding production applications.
Speed and Power Specifications for Belt-Driven Motorized Spindles
Speed and Power Specifications for Belt Driven Motorized Spindles |
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|---|---|---|---|---|
| Spindle Series | Horsepower | Base Speed | Nema Motor Frame Size | Maximum Belt Drive Ratio |
| MC1875 | 1/3 | 1160 | 48C | From 2:1 to 1:2 |
| 1/3 | 1750 | 48C | ||
| 1/2 | 3500 | 48C | ||
| MC / MB275 | 1/2 | 1160 | 56C | From 2:1 to 1:2 |
| 3/4 | 1750 | 56C | ||
| 1 | 3500 | 56C | ||
| 1 1/2 | 1160 | 145TC | ||
| 2 | 1750 | 145TC | ||
| 3 | 3500 | 145TC | ||
| MC / MB35 | 1/2 | 1160 | 56C | From 2:1 to 1:2 |
| 3/4 | 1750 | 56C | ||
| 1 | 3500 | 56C | ||
| 1 1/2 | 1160 | 145TC | ||
| 2 | 1750 | 145TC | ||
| 3 | 3500 | 145TC | ||
| MC / MB40 | 1 1/2 | 1160 | 145TC | From 2:1 to 1:2 |
| 2 | 1750 | 145TC | ||
| 3 | 3500 | 145TC | ||
| 5 | 1160 | 215TC | ||
| 7 1/2 | 1750 | 213TC | ||
| 7 1/2 | 3500 | 184TC | ||
| MC / MB55 | 2 | 1160 | 184TC | From 2:1 to 1:2 |
| 3 | 1750 | 182TC | ||
| 3 | 3500 | 182TC | ||
| 5 | 1160 | 215TC | ||
| 7 1/2 | 1750 | 213TC | ||
| 7 1/2 | 3500 | 184TC | ||
| MC / MB65 | 5 | 1160 | 215TC | From 2:1 to 1:2 |
| 7 1/2 | 1750 | 213TC | ||
| 7 1/2 | 3500 | 184TC | ||
| 15 | 1160 | 284TC | ||
| 20 | 1750 | 256TC | ||
| 20 | 3500 | 256TC | ||
| MC / MB80 | 5 | 1160 | 215TC | From 2:1 to 1:2 |
| 7 1/2 | 1750 | 213TC | ||
| 7 1/2 | 3500 | 213TC | ||
| 15 | 1160 | 284TC | ||
| 20 | 1750 | 256TC | ||
| 20 | 3500 | 286TC | ||
Milwaukee MachineTool Advantage
Milwaukee MachineTool Corporation builds motorized machine spindle solutions for CNC equipment, OEM machinery and custom production systems. Our belt-driven spindle lineup combines proven block and cartridge spindle platforms with multiple electric motor configurations, giving machine designers flexibility when selecting horsepower, base speed, motor frame size and belt ratio.
Need help selecting a CNC motorized spindle? Our team can review machine layout, spindle size, horsepower, speed and drive requirements to identify an appropriate configuration for your application. Contact Milwaukee MachineTool to discuss a belt-driven spindle assembly or other motorized spindle requirements.