A2-6 Lathe Spindle (Short Spindle) - 65mm Bore CNC Turning

The A2-6 Lathe Spindle (Short Spindle) is a high-performance mechanical core engineered specifically for modern CNC turning and lathe machines where space-saving 'short spindle' dimensions are required without compromising on power. With a robust A2-6 nose taper and a significant 65mm bore diameter, this spindle allows for versatile bar-feeding and heavy-duty workpiece clamping. The unit features a precise locating diameter of 180 h6 x 200mm and a compact 400mm total length, making it ideal for rigid machine headstocks. Engineered for rotational stability, it utilizes a 2+2 bearing arrangement (7020 P4 front and 7018 P4 rear) to handle extreme radial and axial cutting forces. Rated for 3,500 RPM and featuring low-maintenance greased-packed lubrication, this spindle provides the consistent accuracy and torque necessary for professional-grade metal turning.

Standard A2-6 Nose Taper for industrial chuck compatibility
Large 65mm Bore Diameter for bar-fed operations
Compact Short Spindle design (400mm total length)
Precision 2+2 Bearing Layout (7020 P4 & 7018 P4)
High-Speed stability up to 3500 RPM
Greased-Packed lubrication for reduced maintenance

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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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
NOSE TAPER	A2-6
LOCATING DIAMETER	180 h6 X 200 mm
TOTAL LENGTH	400 mm
FLANGE DIAMETER	230 Dia
MAX SPEED	3500 RPM
BORE DIAMETER	65 mm
LUBRICATION TYPE	Greased Packed
BEARING CONFIGURATION	2 + 2 Arrangement
MECHANICAL	driveType: Belt Driven \| mounting: CNC Lathe / Turning Center Ready
MODEL NUMBER	MTLSA2-6-180-200-65
FRONT BEARING	7020 P4 Precision
REAR BEARING	7018 P4 Precision

Industrial Applications

Usage Scenario	Target Industry
CNC Turning Machines and Lathes	Automotive and Gear Manufacturing
Automated Bar Feeding Lathe Systems	Aerospace and Defense Machining
Industrial Metalworking Centers	Industrial Tool and Die Making
Heavy-Duty Turning and Threading	General Precision Engineering
Custom Machine Tool Retrofitting	Machine Tool OEM Production
Precision Lathe Spindle Replacements	General Engineering

Technical FAQ & Operational Guide

What is the benefit of a 'Short Spindle' design in a lathe?

A short spindle design reduces the overall footprint of the machine headstock, allowing for a more compact lathe build while maintaining high rigidity and reducing vibration for better surface finishes.

Can this spindle be used with automated bar feeders?

Yes, the 65mm bore diameter is specifically designed to accommodate various bar stock sizes, making it ideal for automated bar feeding operations in CNC turning centers.

What lubrication does this A2-6 model require?

This model is greased-packed, which means the high-precision bearings are lubricated during assembly. This minimizes maintenance requirements compared to oil-mist or oil-bath systems.

How is the rotational balancing calibrated on this spindle motor?

Every spindle motor is dynamically balanced in accordance with the ISO 1940 balancing standard to guarantee vibration-free running and maximum stability at high RPMs.

What are the runout tolerances of the shaft and collet interface?

The internal shaft taper maintains a runout accuracy tolerance of under 0.003mm (3 microns), maintaining precise tool concentricity and preventing premature cutter wear.

What cooling precautions are built-in to prevent heat exhaustion?

Built-in temperature dissipation channels support continuous water/liquid cooling circulation or forced fan airflow, preventing thermal expansion of components.

Is this spindle motor compatible with standard VFD inverters and collets?

Yes, the spindle supports direct electrical integration with standard variable frequency drives (VFD) and accepts industrial ER collets (ER11, ER20, ER25, or ER32) to match standard toolholder dimensions.

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A2-6 Lathe Spindle (Short Spindle) - 65mm Bore CNC Turning

Standard A2-6 Nose Taper for industrial chuck compatibility

Large 65mm Bore Diameter for bar-fed operations

Compact Short Spindle design (400mm total length)

Precision 2+2 Bearing Layout (7020 P4 & 7018 P4)

High-Speed stability up to 3500 RPM

Greased-Packed lubrication for reduced maintenance

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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 Parameter

Engineering Specification Value

NOSE TAPER

A2-6

LOCATING DIAMETER

180 h6 X 200 mm

TOTAL LENGTH

400 mm

FLANGE DIAMETER

230 Dia

MAX SPEED

3500 RPM

BORE DIAMETER

65 mm

LUBRICATION TYPE

Greased Packed

BEARING CONFIGURATION

2 + 2 Arrangement

MECHANICAL

driveType: Belt Driven | mounting: CNC Lathe / Turning Center Ready

MODEL NUMBER

MTLSA2-6-180-200-65

FRONT BEARING

7020 P4 Precision

REAR BEARING

7018 P4 Precision

Usage Scenario

Target Industry

CNC Turning Machines and Lathes

Automotive and Gear Manufacturing

Automated Bar Feeding Lathe Systems

Aerospace and Defense Machining

Industrial Metalworking Centers

Industrial Tool and Die Making

Heavy-Duty Turning and Threading

General Precision Engineering

Custom Machine Tool Retrofitting

Machine Tool OEM Production

Precision Lathe Spindle Replacements

General Engineering