GB/T 783-2023Lifting appliances—Basic parameter series (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 783-2013 "Maximum lifting capacity series of basic lifting machinery" and GB/T 790-1995 "Electric axle Crane span and lifting height series". This document is based on GB/T 783-2013 and integrates the content of GB/T 790-1995.

Compared with GB/T 783-2013 and GB/T 790-1995, in addition to structural adjustments and editorial changes, the main technical changes are as follows:

a) Changed the scope (see Chapter 1, Chapter 1 of GB/T 783-2013);

b) Added the terms and definitions of "rated lifting capacity", "track gauge", "amplitude", "descent depth" and "lifting range" (see Chapter 3);

c) The term and definition of "basic type" is deleted (see 2.2 of GB/T 783-2013);

d) The term and definition of "span of factory building" is deleted (see 3.2 of GB/T 790-1995);

e) The values listed in the maximum lifting capacity series have been changed (see Table 1, Table 1 of GB/T 783-2013);

f) Added the list of span, gauge series and their values, and deleted the factory span and electric motor in Chapter 4 of GB/T 790-1995 The relationship between bridge crane spans is later included (see Chapter 5);

g) Added the amplitude series and its numerical list (see Chapter 6);

h) The lifting height, descending depth and lifting range series and their ranges and value lists are added, and Section 1 of GB/T 790-1995 is added.

Chapter 5 is included after deleting the provisions on the lifting height of electric overhead cranes (see Chapter 7);

i) Added the list of speed series and its values (see Chapter 8).

1 Scope

This document stipulates the maximum lifting weight, span, track gauge, amplitude, lifting height, descent depth, lifting range, and basic speed of the lifting machinery. Recommended values for the parameter series.

This document applies to lifting machinery defined in GB/T 20776. This document does not apply to mechanical parking equipment.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 6974 (all parts) Crane terminology

3 Terms and definitions

The terms and definitions defined in GB/T 6974 (all parts) and the following apply to this document.