CNC Milling Spindle
170XDJ10G50
High-torque synchronous motor spindle with HSK A100 interface. 50 kW output, 478 Nm of class-leading torque, and sub-micron runout accuracy for heavy-duty milling and large machining centers.
170XDJ10G50 CNC Milling Spindle
The 170XDJ10G50 is a high-torque synchronous motor spindle engineered for heavy-duty milling operations in large CNC machining centers. With a rigid 170mm housing diameter, 50 kW of continuous power, and an exceptional 478 Nm of torque at low to mid-range speeds, this spindle delivers unmatched metal removal rates in steel, cast iron, and difficult-to-machine alloys.
The direct-drive motor-spindle architecture eliminates transmission losses and provides superior dynamic response under heavy cutting loads. Equipped with P4/P2 precision angular contact ball bearings in a tandem-O-tandem arrangement with disc spring preload, the spindle maintains runout accuracy within 1 micron even under maximum torque conditions. The high-capacity water-cooling jacket with a minimum 12 L/min flow rate ensures stable thermal conditions during prolonged heavy roughing cycles. The HSK A100 tool interface provides exceptional rigidity at the spindle nose for large-diameter face mills, high-feed cutters, and heavy boring tools. This spindle is ideal for heavy-duty milling, large machining centers, roughing and finishing of large components, and high-productivity manufacturing environments.
Download Drawing Get a QuoteDetailed Parameters
| Speed (r/min) | 10000 |
| Power (kW) | 50 |
| Torque (Nm) | 478 |
| Voltage (V) | 380 |
| Current (A) | 105 |
| Motor Type | Synchronous Permanent Magnet Motor |
| Tool Interface | HSK A100 (DIN 69893) |
| Bearing Type | P4/P2 Precision Angular Contact Ball Bearings |
| Bearing Arrangement | Tandem-O-Tandem (TBT) |
| Bearing Lubrication | Grease (standard) / Oil-air (optional) |
| Runout Accuracy | ≤ 0.001mm at spindle nose |
| Cooling Method | Water-jacket cooling with external chiller (min 12 L/min flow) |
| Housing Diameter | 170mm |
| Housing Length | ~750mm |
| Spindle Weight | ~210 kg |
| Tool Clamping | Hydraulic drawbar with disc spring preload |
| Drawbar Force | 30 kN |
| Sensor Integration | 2x PT100 temperature sensors + 1x vibration sensor port |
| Protection Class | IP54 (IP65 optional) |
| Noise Level | ≤ 75 dB(A) at max speed |
| Balancing Grade | G0.4 per ISO 1940-1 |
| Mounting Orientation | Vertical / Horizontal |
Available Options & Customizations
- Hybrid ceramic bearings (Si₃N₄ balls) for extended high-load operation
- Oil-air micro-lubrication for continuous heavy-duty cycles
- Built-in drawbar position sensor with analog output
- Custom tool interface (BT50, Capto C8, HSK A125)
- Rotary encoder for rigid tapping and spindle orientation (C-axis)
- Increased IP65 protection rating for wet machining environments
Class-Leading Torque for Heavy-Duty Machining
The 170XDJ10G50 delivers 478 Nm of torque with synchronous motor precision for the most demanding large-component machining applications.
50 kW Synchronous Motor
Permanent magnet motor delivers constant torque under heavy loads for consistent metal removal rates.
478 Nm Peak Torque
Class-leading torque output enables aggressive face milling and heavy boring in steel and cast iron.
P4/P2 Precision Bearings
High-precision angular contact bearings in TBT arrangement for maximum rigidity under 478 Nm loads.
HSK A100 Interface
Large HSK A100 ensures rigid clamping for face mills up to 315mm and heavy boring tools.
High-Capacity Cooling
12 L/min water-jacket cooling maintains thermal stability under continuous 50 kW heavy-duty cutting.
Precision-Balanced Rotor
Dynamically balanced to G0.4 grade for low vibration across the full 10,000 rpm speed range.
Hydraulic Drawbar System
30 kN clamping force with disc spring preload for secure tool retention during aggressive cutting.
Condition Monitoring Ready
Built-in temperature and vibration sensors enable predictive maintenance and real-time health monitoring.
Request a Quote for 170XDJ10G50
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Applications: Heavy-duty face milling and shoulder milling · Large machining centers · Roughing and finishing of large components · Heavy equipment and mining machinery parts · Steel and cast iron high-feed roughing · Large die and mold manufacturing