Precision ISO30 ER40 Tool Holder | HSD Pull Stud Collet Chuck

The Precision ISO30 ER40 Tool Holder (ISO30-ER40-75L) is a critical interface for high-speed CNC routing and milling centers equipped with HSD spindles. Engineered for maximum concentricity and balance, this tool holder is forged from 20CrMnTi alloy steel, providing the perfect blend of surface hardness and core toughness. The ER40 collet series compatibility allows for a wide clamping range (up to 26mm or 30mm depending on the collet), making it ideal for heavy-duty bits and high-torque machining. This unit comes integrated with a precision-ground HSD-compatible pull stud, ensuring secure and consistent tool changes in automatic tool changer (ATC) systems. With a 75mm gauge length, it provides the necessary reach and stability for multi-axis carving, furniture manufacturing, and industrial plastic fabrication. Its advanced surface finish resists oxidation, ensuring long-term accuracy and a vibration-free machining experience at high spindle speeds.

Compatible with ER40 series collets for a broad tool clamping range
Forged from 20CrMnTi material for superior durability and high-speed stability
Integrated HSD pull stud specifically optimized for HSD CNC spindles
Precision balanced to minimize vibration at high RPM
75L gauge length for optimal reach and mechanical leverage
High-concentricity design to extend cutting tool life and improve surface finish

⚡ 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
MODEL NUMBER	ISO30-ER40-75L
TAPER TYPE	ISO30 (SK30)
COLLET SERIES	ER40
GAUGE LENGTH	75 mm
MATERIAL	20CrMnTi Steel Alloy
PULL STUD TYPE	HSD Style (Pre-installed)
MECHANICAL	surfaceHardness: HRC 56-58 \| concentricity: ≤ 0.005mm \| balancing: G2.5 / 24,000 RPM (Optional High-Balance versions available)

Industrial Applications

Usage Scenario	Target Industry
CNC Routing Centers with Automatic Tool Changers (ATC)	Woodworking and Cabinetry Industry
Heavy-Duty Woodworking and Furniture Production	Signage and Large-Format Fabrication
Industrial Plastic and Composite Machining	Automotive and Aerospace Prototyping
Non-Ferrous Metal Milling (Aluminum, Brass)	Industrial Model Making
Multi-Axis Carving and 3D Sculpting	Aluminum Fabrication Centers
Furniture manufacturing using HSD Spindles	General Engineering

Technical FAQ & Operational Guide

Can I use this ISO30 holder with a BT30 spindle?

No. While the taper dimensions are similar, ISO30 (often called SK30) and BT30 have different flange designs and pull stud requirements. This holder is specifically designed for ISO30 spindles, common on European and Chinese ATC routers using HSD motors.

Does the pull stud come pre-installed and tightened?

Yes, this model comes with the HSD-type pull stud pre-installed. However, we recommend checking the torque before first use to ensure it meets your spindle manufacturer's safety specifications.

What is the largest tool shank size I can use with an ER40 holder?

An ER40 collet system can typically clamp tool shanks up to 26mm (standard) or 30mm (specialty). This makes the ISO30-ER40 holder ideal for large-diameter surfacing bits and heavy-duty milling tools.

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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Precision ISO30 ER40 Tool Holder | HSD Pull Stud Collet Chuck

Compatible with ER40 series collets for a broad tool clamping range

Forged from 20CrMnTi material for superior durability and high-speed stability

Integrated HSD pull stud specifically optimized for HSD CNC spindles

Precision balanced to minimize vibration at high RPM

75L gauge length for optimal reach and mechanical leverage

High-concentricity design to extend cutting tool life and improve surface finish

⚡ 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

MODEL NUMBER

ISO30-ER40-75L

TAPER TYPE

ISO30 (SK30)

COLLET SERIES

ER40

GAUGE LENGTH

75 mm

MATERIAL

20CrMnTi Steel Alloy

PULL STUD TYPE

HSD Style (Pre-installed)

MECHANICAL

surfaceHardness: HRC 56-58 | concentricity: ≤ 0.005mm | balancing: G2.5 / 24,000 RPM (Optional High-Balance versions available)

Usage Scenario

Target Industry

CNC Routing Centers with Automatic Tool Changers (ATC)

Woodworking and Cabinetry Industry

Heavy-Duty Woodworking and Furniture Production

Signage and Large-Format Fabrication

Industrial Plastic and Composite Machining

Automotive and Aerospace Prototyping

Non-Ferrous Metal Milling (Aluminum, Brass)

Industrial Model Making

Multi-Axis Carving and 3D Sculpting

Aluminum Fabrication Centers

Furniture manufacturing using HSD Spindles

General Engineering