Product Overview

The VDI (Verein Deutscher Ingenieure) tooling system, standardized under DIN 69880, is the industry standard for quick-change tool holders on CNC lathes and turning centers. It allows operators to preset tools offline and swap them into the turret in seconds with a single Allen wrench, drastically reducing machine downtime. Our E-Type VDI Tool Holders are designed for holding round/cylindrical shank tools. Built for ultimate rigidity and precision, they ensure that your boring bars, U-drills, and end mills are held perfectly on-center, providing superior surface finishes and extending cutting tool life.

Key Features & Advantages

• DIN 69880 Standard Compliance: Precision-manufactured to strict DIN 69880 specifications, ensuring perfect compatibility with all standard VDI turrets (Sauter, Duplomatic, Pragati, etc.).

• Comprehensive E-Type Range:

• Form E1: For indexable insert drills (U-drills) with internal coolant.

• Form E2: For boring bars, featuring secure set-screw clamping.

• Form E3: For DIN 6388 (OZ) collets.

• Form E4: For DIN 6499 (ER) collets, ideal for holding drills, taps, and end mills.

• Internal Coolant Routing: Designed with precise internal coolant channels to deliver high-pressure cutting fluid directly to the cutting edge, essential for deep hole boring and U-drilling.

• Premium Material & Hardness: Forged from high-grade alloy steel, case-hardened to HRC 56-58, and precision-ground on the shank and locating surfaces for maximum durability and vibration damping.

• Precision Ground Serrations: The VDI shank teeth are meticulously ground to ensure a flawless, rigid lock against the turret's clamping wedge, guaranteeing high repeatability.

Why Partner with Pingyuan Zhenghao Machinery?

• Direct Manufacturer Savings: Bypass trading companies and source premium CNC lathe tooling directly from our factory for highly competitive wholesale pricing.

• Full Size Availability: We stock and manufacture all common VDI shank diameters, including VDI20, VDI30, VDI40, VDI50, and VDI60.

• Custom Bore Sizes: We offer a wide range of internal bore sizes (e.g., a VDI40 holder with a 32mm bore: 40x32) to perfectly match your existing cutting tools.

• Strict Quality Control: Every VDI holder undergoes rigorous 3D CMM inspection for concentricity, dimensional accuracy, and coolant seal integrity before shipment.

Frequently Asked Questions (FAQ) - Selection Guide

Q1: How do I read the size of a VDI E-type holder, such as "VDI40 x 32"?

A: The first number (40) refers to the VDI shank diameter in millimeters, which must match the hole size in your CNC lathe's turret. The second number (32) refers to the internal bore diameter of the holder, which must match the cylindrical shank diameter of the cutting tool (like a boring bar or U-drill) you intend to clamp.

Q2: What is the difference between Form E1, E2, E3, and E4?

A: These are DIN 69880 classifications for cylindrical tool holding:

• E1: U-drill holder (coolant through the center).

• E2: Boring bar holder (solid clamping with set screws).

• E3: Collet chuck holder utilizing OZ (DIN 6388) collets.

• E4: Collet chuck holder utilizing ER (DIN 6499) collets.

Q3: Are these VDI holders suitable for high-pressure coolant systems?

A:Yes. Our E-type VDI holders are designed with tight tolerances and high-quality sealing surfaces to handle standard and high-pressure internal coolant systems, ensuring efficient chip evacuation and tool cooling.

Q4: Can I use these holders for milling operations?

A: Form E3 and E4 (collet chucks) can hold end mills for light milling operations if your CNC lathe is equipped with a Y-axis or C-axis. However, these are static (non-driven) tool holders. For active milling, you would need driven/live VDI tool holders.

Reduce setup times and maximize your CNC lathe's efficiency with our Precision DIN 69880 VDI Tool Holders.

Contact our sales engineering team today for a complete VDI catalog, compatibility checks, and bulk pricing.