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GB/T 25638.2-2025Building construction machinery and equipment - Concrete pumps - Part 2: Procedure for examination of technical parameters (English PDF)

建筑施工机械与设备混凝土泵第2部分：技术参数的检验程序

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Issued by

State Administration for Market Regulation, National Standardization Administration

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

March 1, 2026

Scope

GB/T 25638.2-2025 is the English-translated version of 建筑施工机械与设备混凝土泵第2部分：技术参数的检验程序.

GB/T 25638.2-2025 — This document specifies the inspection procedures for the technical parameters of piston concrete pumps and extrusion concrete pumps as defined in GB/T 25638.1. and requirements.

This document applies to mobile (with or without placing boom) and stationary concrete pumps.

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Document preview — GB/T 25638.2-2025

National Standard of the People's Republic of China

ICS: 91.220
Classification: P 97

Issued by: State Administration for Market Regulation, National Standardization Administration

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Performance test items
5 Machine Parameters
5.1 Total mass of the machine
5.2 Overall dimensions
6 Pumping performance
6.1 Piston pump
6.2 Extrusion pump
7 Hopper loading height
7.1 Measurement conditions
7.2 Measuring equipment and accuracy requirements
7.3 Measurement process
8 Cleaning Pump Performance
8.1 Measurement conditions
8.2 Measuring equipment and accuracy requirements
8.3 Measurement process
9 Concrete placing boom performance
9.1 Measurement conditions
9.2 Measuring equipment and accuracy requirements
9.3 Measurement process
10 Outrigger Performance
10.1 Outrigger span
10.2 Maximum load of outriggers
10.3 Outrigger Movement Speed
10.4 Outrigger hydraulic system pressure
Appendix A (Informative) Calculation Example of Maximum Theoretical Delivery Volume and Delivery Pressure of Extrusion Pumps
A.1 Single roller extrusion pump
A.2 Double roller extrusion pump
Reference
Figure 1 Schematic diagram of concrete pump mass measurement
Figure 2 Schematic diagram of plane definition
Figure 3 Schematic diagram of the dimensions of a concrete pump truck
Figure 4 Schematic diagram of the dimensions of a truck-mounted concrete pump
Figure 5 Schematic diagram of the dimensions of the trailer concrete pump
Figure 6 Schematic diagram of actual delivery volume test system
Figure 7 Schematic diagram of the delivery pressure measurement system
Figure 8 Schematic diagram of hopper loading height
Figure 9 Schematic diagram of cloth radius
Figure 10 Schematic diagram of cloth height
Figure 11 Schematic diagram of arm section length
Figure 12 Schematic diagram of the fabric arm operating area
Figure 13 Schematic diagram of cloth arm expansion (retraction) movement
Figure 14 Schematic diagram of the rotary motion of the fabric arm
Figure 15 Schematic diagram of the rotation angle of the fabric arm
Figure 16 Schematic diagram of pressure measurement of the fabric arm system
Figure 17 Schematic diagram of outrigger span
Figure 18 Schematic diagram of load loading on the fabric arm
Figure 19 Schematic diagram of leg swing
Figure 20 Schematic diagram of horizontal extension of outriggers
Figure 21 Schematic diagram of the vertical cylinder extension of the outrigger
Figure A.1 Extrusion pump---single roller extrusion pump
Figure A.2 Extrusion pump---double roller extrusion pump
Table 1 Concrete pump quality measurement record
Table 2 Concrete pump truck overall dimensions measurement record
Table 3 Vehicle-mounted concrete pump overall dimensions measurement record
Table 4 Measurement record of trailer concrete pump dimensions
Table 5 Recommended concrete mix ratio
Table 6 Pipeline size record
Table 7 Concrete pump actual delivery volume measurement record
Table 8 Concrete pump delivery pressure measurement record
Table 9 Concrete pump pumping performance measurement record
Table 10 Single roller extrusion pump measurement record
Table 11 Double roller extrusion pump measurement record
Table 12 Concrete pump hopper loading height measurement record
Table 13 Concrete pump cleaning pump measurement record
Table 14 Measurement record of fabric arm performance
Table 15 Concrete pump leg span measurement record
Table 16 Maximum load measurement record of outriggers
Table 17 Outrigger speed and pressure measurement records

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 2 of GB/T 25638 "Construction Machinery and Equipment Concrete Pumps". GB/T 25638 has been published.

The following parts.

--- Part 1: Terminology and commercial specifications;

--- Part 2: Verification procedures for technical parameters.

This document is modified to adopt ISO 21573-2:2020 "Construction machinery and equipment concrete pumps Part 2: Verification of technical parameters the technical differences between this document and ISO 21573-2:2020 and their reasons are as follows.

--- Changed the measurement conditions and calculation formula of the total mass of the whole machine to 65kg for the quasi-passenger mass (see 5.1.1, 5.1.3.2) to match the occupant quality requirements in GB/T 12534 are consistent;

--- Changed the formula of the total mass of the concrete pump and adjusted the driver's weight to meet my country's technical requirements [see 5.1.3.2 in the public Formula (1)];

--- Added the requirement for the piston pump's pumping performance test condition at an altitude of < .2000m (see 6.1.1.2) to adapt to my country's technical requirements;

--- Added the basic composition of materials and aggregate gradation range in the preparation of piston pump pumping performance test to adapt to my country's concrete technology Technical requirements (see 6.1.1.4);

--- Changed the material requirements for sand in the recommended concrete mix ratio table to natural sand and machine-made sand, and the material requirements for stone were combined with the requirements for aggregate particles.

The diameter requirements are as follows (see Table 5) to adapt to my country's technical requirements and increase operability.

The following editorial changes have been made to this document.

---Adjusted the order of some formulas and added formula numbers;

--- Added introductory words for some items;

---Added references.

Introduction

GB/T 25638 "Construction machinery and equipment - Concrete pumps" is intended to consist of two parts.

--- Part 1: Terminology and commercial specifications. The purpose is to unify and standardize the terminology and commercial specifications of concrete pumps.

--- Part 2: Inspection procedures for technical parameters. The purpose is to standardize the inspection procedures and requirements for the technical parameters of concrete pumps.

This document is helpful to guide the performance testing of concrete pumping equipment produced by various manufacturers in my country, and effectively improve the performance of concrete pumps in my country.

The competitiveness and brand influence of our equipment in the global market.

Construction machinery and equipment concrete pumps Part 2: Verification procedures for technical parameters

1 Scope

This document specifies the inspection procedures for the technical parameters of piston concrete pumps and extrusion concrete pumps as defined in GB/T 25638.1.

and requirements.

This document applies to mobile (with or without placing boom) and stationary concrete pumps.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 25638.1 Construction machinery and equipment - Concrete pumps - Part 1: Terminology and commercial specifications

3 Terms and Definitions

The terms and definitions defined in GB/T 25638.1 and the following apply to this document.

Single-roller rotary pump Concrete pump that discharges fresh concrete by squeezing an elastic tube through a single rotating roller.

Double-roller rotary pump Concrete pump that discharges fresh concrete by squeezing an elastic tube through twin rotating rollers.

A device for storing, mixing and unloading concrete.

outriggerspan

The distance between the force center lines of the vertical cylinders of two adjacent legs or the projected distance on the reference plane when the legs are extended to the extreme position.

4 Performance test items

This document covers the measurement or testing of the following performance indicators.

a) Machine parameters;

b) pumping performance;

c) Hopper loading height;

d) Cleaning pump performance;

e) Fabric arm performance;

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 39 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 25638.1Building construction machinery and equipment -- Concrete pumps -- Part 1: Terminology and commercial specifications

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