CNC Turning Module
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This page explains how Main Spindle Assembly is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
The main spindle assembly is the critical rotating component within an Aluminum Profile CNC Machining Center that provides the rotational force and precision required for cutting operations.
Technical details and manufacturing context for Main Spindle Assembly
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Spindle Taper | BT40 | Standard for tool retention; other tapers availableISO 7388/1 |
| Max Speed | 12000 rpm | Higher speeds require ceramic bearings |
| Power | 15–22 kW | Continuous rating; peak power higher |
| Torque | 120–180 N·m | At low speed range |
| Runout (TIR) | ≤0.003 mm | Measured at gauge lineISO 230-1 |
| Balancing Grade | G1.0 | For high-speed operationISO 1940-1 |
| Cooling Method | Oil-air | Required for speeds above 8000 rpm |
| Lubrication | Grease | For low-speed; oil mist for high-speed |
| Bearing Type | Angular contact | P4 accuracy class |
| Drawbar Force | 12–18 kN | Ensures tool retention |
| Operating Temperature | 0–45 °C | Above 45°C derating required |
| Weight | 120–180 kg | Depends on configuration |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Max 0.5 MPa (5 bar) coolant pressure at spindle face |
| other spec: | Max rotational speed: 20,000 RPM, Flow rate: 10-30 L/min coolant, Vibration limit: ≤ 2.5 mm/s RMS |
| temperature: | 0°C to +45°C |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
Manufacturer profiles associated with Main Spindle Assembly.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The maximum speed is 12,000 rpm. Higher speeds require ceramic bearings, which are listed as a material option.
The standard taper is BT40 per ISO 7388/1. Other tapers are available upon request, but this is the standard for tool retention.
Runout (TIR) is ≤0.003 mm measured at the gauge line, per ISO 230-1. This ensures high precision during machining.
For speeds above 8,000 rpm, oil-air cooling is required. For lower speeds, grease lubrication is used.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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