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

Engineering Analysis & Technical Data

Technical Parameter	Specification Details
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

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.

Detailed Overview of Precision ISO30 ER40 Tool Holder | HSD Pull Stud Collet Chuck

Advanced Engineering & Integration

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