Tool holders ISO 7388-1 (formerly DIN 69871)
Catalogue N°43 - Chapter 1
Catalogue N°43 - Chapter 1
Tool holders
ISO 7388-1 (formerly DIN 69871)
[Browse catalogue | web view]
Tool holders
ISO 7388-1 (formerly DIN 69871)
[Browse catalogue | web view]
Description:
Tool shanks with 7/24 taper for automatic tool changers
ISO 7388-1 (formerly DIN 69871)



Material:
Alloyed case-hardened steel, tensile core strength of min. 950 N / mm².
Case hardened HRC 60 ± 2 (HV 700 ± 50), hardening depth 0.8 mm ± 0.2 mm, black-finished and precisely grinded.
Form AD/AF (AD/B):
Delivery in form AD, type AF (B) closed with releasable headless screws.
Accuracy:
Quality of taper <AT 3 according to DIN 7187 and DIN 2080.
Alloyed case-hardened steel, tensile core strength of min. 950 N / mm².
Case hardened HRC 60 ± 2 (HV 700 ± 50), hardening depth 0.8 mm ± 0.2 mm, black-finished and precisely grinded.
Form AD/AF (AD/B):
Delivery in form AD, type AF (B) closed with releasable headless screws.
Accuracy:
Quality of taper <AT 3 according to DIN 7187 and DIN 2080.
Norms:
DIN ISO 7388-1
DIN ISO 7388-1:2014-07 [CURRENT]Werkzeugschäfte mit Kegel 7/24 für automatischen Werkzeugwechsel - Teil 1: Maße und Bezeichnung von Schäften der Formen A, AD, AF, U, UD und UF (ISO 7388-1:2007)
English Titel: Tool shanks with 7/24 taper for automatic tool changers - Part 1: Dimensions and designation of shanks of forms A, AD, AF, U, UD and UF (ISO 7388-1:2007)
This document replaces the previous national standard for steep taper shanks DIN 69871-1:1995-10 and specifies the dimensions of tool shanks with taper 7/24 of shank forms A, AD, AF, U, UD and UF (with two possible extensions in each case) for automatic tool change, which are used on machines that use an automatic gripper system for loading the spindle from the magazine and vice versa. These tools are designed on the basis of the most important dimensions used in spindle heads in accordance with ISO 9270.
Compared to DIN 69871-1:1995-10, the following changes have been made: a) Shank forms U and UD as well as AF and UF as supplements to forms A and U have been included as additional versions; b) Form B has been replaced by shank form AF or UF; c) Changes to dimensional designations and dimensions of tool shanks; d) Section on information on the material and heat treatment has been included; e) Labelling of a tool shank has been changed.
DIN 69871-1
DIN 69871-1:1995-10 [WITHDRAWN]Steilkegelschäfte für automatischen Werkzeugwechsel - Teil 1: Form A, Form AD, Form B und Ausführung mit Datenträger
English Titel: Tool shanks with 7/24 taper for automatic tool exchange - Part 1: Type A, type AD, type B and with data media