GB/T 26949.12-2021Industrial trucks - Verification of stability - Part 12: Industrial variable-reach trucks handling freight containers of 6 m length and longer (English PDF)

1 Scope

This document specifies test methods for verifying the stability of industrial variable-reach trucks handling empty or fully loaded freight containers of 6 m length and longer.

This document applies to industrial variable-reach trucks, which are equipped with spreaders (top lift and side lift), used for interchangeable carriages, semi-trailers or other carrying device, for handling of container.

This document does not specify requirements for industrial variable-reach trucks (see

ISO 22915-11) and off-road industrial variable-reach trucks (see ISO 22915-14).

This document does not apply to forklifts handling containers, which have a movable center of gravity (see ISO 3874).

This document does not apply to counterbalanced forklifts, which have gantry, for handling freight containers (see ISO 22915-9).

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard.

GB/T 10827.2-2021 Industrial trucks - Safety requirements and verification - Part 2:

Self-propelled variable-reach trucks (ISO 3691-2:2016, IDT)

ISO 1496-2 Series 1 freight containers - Specification and testing - Part 2: Thermal containers

Note: GB/T 7392-1998 Series 1 thermal containers - Specification and testing (idt ISO 1496-2:1996)

ISO 3874 Series 1 freight containers - Handling and securing

Note: GB/T 17382-2008 Series 1 freight containers - Handling and securing (ISO 3874:1997, IDT)

ISO 5353 Earth-moving machinery, and tractors and machinery for agriculture and forestry - Seat index point

Note: GB/T 6236-2008 Tractors and machinery for agricultural and forestry - Seat index point (ISO 5353:1995, MOD)

ISO 22915-1 Industrial trucks - Verification of stability - Part 1: General

Note: GB/T 26949.1-2020 Industrial trucks - Verification of stability - Part 1: General (ISO 22915-1:2016, IDT)

ISO 22915-10 Industrial trucks - Verification of stability - Part 10: Additional stability tests for trucks operating in the special conditions of stacking with load laterally displaced by powered devices

Note: GB/T 26949.10-2011 Industrial trucks - Verification of stability - Part 10: Additional stability tests for trucks operating in the special conditions of stacking with load laterally displaced by power (ISO 22915-10:2008, IDT)

ISO 22915-20 Industrial trucks - Verification of stability - Part 20: Additional stability test for trucks operating in the special condition of offset load, offset by utilization

Note: GB/T 26949.20-2016 Industrial trucks - Verification of stability - Part 20: Additional stability test for trucks operating in the special condition of offset load, offset by utilization (ISO 22915-20:2008, IDT)

3 Terms and definitions

The terms and definitions, which are defined in ISO 22915-1, as well as the following terms and definitions, apply to this document.

3.1 Industrial variable-reach truck for handling freight containers A counterbalanced forklift, which is equipped with a telescopic or non-telescopic, non-slewing articulated arm, as defined in 4.13.2.2.2 of ISO 5053:1987, AND specially used for handling freight containers of 6 m length and longer.

Note 1: The handling device is directly installed on the lifting mechanism; the lifting mechanism cannot be slewed OR the slewing angle on either side of the longitudinal axis of the vehicle is not greater than 5°.

Note 2: The industrial variable-reach truck for handling freight containers is expected to be used on a firm, flat, level and paved site.

Note 3: According to the definition in GB/T 10827.2-2021, the industrial variable-reach truck for handling freight container can be equipped with stabilizers, axle locking devices or frame lateral leveling devices.

4 Operating conditions

5 Test conditions

6 Verification of stability

The stability of the vehicle shall be verified, according to Table 1.

When conducting test 4 and test 5, the wheels shall not lose contact with the tilting platform or any structural component; any part of the vehicle shall not contact the tilting platform.

7 Markings

The actual lifting weight of the container handling, which is determined by the stability test, shall be marked on the signboard, in accordance with the provisions of 6.3 in GB/T 10827.2-2021.

The additional lifting capacity (see 5.4), which is determined by the stability test with stabilizers and/or axle locking devices, shall be indicated on the signboard.

When the wind speed, which is used for calculation, in accordance with 5.3, is greater than the rated wind speed of 12.2 m/s, it shall mark the actual wind speed used for the calculation.