A2-8 Lathe Spindle (Standard) for Industrial CNC Turning Centers
The A2-8 Lathe Spindle (Standard) is a premier industrial headstock core designed for heavy-duty CNC turning and high-precision lathe operations. Featuring the standard A2-8 nose taper, this spindle offers exceptional rotational stability and clamping force for large-diameter workpieces. The robust mechanical architecture includes a significant 75mm through-bore, enabling the processing of large bar stock and the integration of high-capacity power chucks. Engineered with a high-rigidity 4+2 bearing configuration—utilizing 7024 P4 front and 7020 P4 rear bearings—it minimizes dynamic runout and thermal growth during sustained 3000 RPM operation. With its 642mm total length and precision-ground 230 h6 locating diameter, this spindle provides the structural integrity required for heavy-material removal while maintaining the surgical accuracy necessary for superior surface finishes in professional metalworking environments.
- Industrial A2-8 Nose Taper for maximum tool and chuck rigidity
- High-Speed 3000 RPM performance for efficient material removal
- Large 75mm Through-Bore for versatile bar stock handling
- Robust 4+2 Bearing Configuration for high-load stability
- Precision P4 Grade Bearing Assembly (7024 & 7020)
- Maintenance-free Grease-Packed lubrication system
- Long-frame 642mm design for enhanced axial stability
Comparative Technical Spindle Motor Configurations Matrix
Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.
| Spindle Capacity | Operating Speed | Operating Voltage | Cooling System |
|---|---|---|---|
| 12.0 kW | 18,000 RPM | 380 V | Water-Cooled |
| 0.8 kW | 24,000 RPM | 220 V | Air-Cooled (Long Shaft) |
| 3.7 kW | 40,000 RPM | 380 V | Water-Cooled ISO20 |
| 9.0 kW | 18,000 RPM | 380 V | Air-Cooled |
Technical Specifications
| Technical Parameter | Engineering Specification Value |
|---|---|
| MODEL NUMBER | MTLSA2-8 |
| NOSE TAPER | A2-8 |
| MAX SPEED | 3000 RPM |
| BORE DIAMETER | 75 mm |
| LOCATING DIAMETER | 230 h6 x 35 mm |
| FLANGE DIAMETER | 300 mm |
| TOTAL LENGTH | 642 mm |
| LUBRICATION TYPE | Grease Packed |
| BEARING SETUP | 4 Front + 2 Rear |
| BEARING TYPES | front: 7024 P4 | rear: 7020 P4 |
| MECHANICAL | bodyType: Belt Driven Lathe Spindle | precisionGrade: Industrial High Precision | applicationCompatibility: CNC Turning Centers & Heavy Lathes |
Industrial Applications
| Usage Scenario | Target Industry |
|---|---|
| Industrial CNC Turning Centers | Heavy Engineering and Tooling |
| Heavy-Duty Metal Lathe Machines | Automotive Component Manufacturing |
| Automated Bar Feeding Production Lines | Aerospace and Defense Fabrication |
| Large-Scale Component Fabrication | Industrial Machine Tool OEM |
| Automotive and Aerospace Part Machining | Oil and Gas Equipment Machining |
| Precision Spindle Retrofitting and OEM Manufacturing | General Engineering |
Technical FAQ & Operational Guide
What is the benefit of the A2-8 nose taper for heavy turning?
The A2-8 taper provides a massive, stable interface for mounting heavy power chucks and large workpieces. It offers superior resistance to centrifugal forces at 3000 RPM and ensures high clamping rigidity, which is essential for heavy-duty material removal.
How does the 75mm bore diameter impact production?
A 75mm bore allows for the processing of large bar stock directly through the spindle head. This is critical for automated production environments and bar-feeding systems, enabling high-volume manufacturing of oversized industrial parts.
Is grease-packed lubrication suitable for continuous 3000 RPM use?
Yes. This spindle is engineered with advanced grease-packed P4 grade bearings that are designed to handle the thermal demands of continuous industrial operation. This system eliminates the complexity of external oil mist lubrication while providing long-term reliability.
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