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Building construction machinery and equipment - Concrete pumps - Part 2: Procedure for examination of technical parameters
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GB/T 25638.2-2025
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Basic data | Standard ID | GB/T 25638.2-2025 (GB/T25638.2-2025) | | Description (Translated English) | Building construction machinery and equipment - Concrete pumps - Part 2: Procedure for examination of technical parameters | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P97 | | Classification of International Standard | 91.220 | | Word Count Estimation | 46,479 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 25638.2-2025: Building construction machinery and equipment - Concrete pumps - Part 2: Procedure for examination of technical parameters
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ICS 91.220
CCSP97
National Standard of the People's Republic of China
Construction machinery and equipment concrete pumps
Part 2.Verification procedures for technical parameters
(ISO 21573-2.2020,MOD)
Released on August 29, 2025
Implementation on March 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface V
Introduction VI
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Performance test items 1
5 Machine Parameters 2
5.1 Total mass of the machine 2
5.2 Overall dimensions 4
6 Pumping performance 8
6.1 Piston pump 8
6.2 Extrusion pump 14
7 Hopper loading height 18
7.1 Measurement conditions 18
7.2 Measuring equipment and accuracy requirements 18
7.3 Measurement process 19
8 Cleaning Pump Performance 19
8.1 Measurement conditions 19
8.2 Measuring equipment and accuracy requirements 19
8.3 Measurement process 20
9 Concrete placing boom performance 20
9.1 Measurement conditions 20
9.2 Measuring equipment and accuracy requirements 20
9.3 Measurement process 20
10 Outrigger Performance 27
10.1 Outrigger span 27
10.2 Maximum load of outriggers 29
10.3 Outrigger Movement Speed 30
10.4 Outrigger hydraulic system pressure 33
Appendix A (Informative) Calculation Example of Maximum Theoretical Delivery Volume and Delivery Pressure of Extrusion Pumps 35
A.1 Single roller extrusion pump 35
A.2 Double roller extrusion pump 36
Reference 39
Figure 1 Schematic diagram of concrete pump mass measurement 2
Figure 2 Schematic diagram of plane definition 4
Figure 3 Schematic diagram of the dimensions of a concrete pump truck 5
Figure 4 Schematic diagram of the dimensions of a truck-mounted concrete pump 7
Figure 5 Schematic diagram of the dimensions of the trailer concrete pump 7
Figure 6 Schematic diagram of actual delivery volume test system 10
Figure 7 Schematic diagram of the delivery pressure measurement system 13
Figure 8 Schematic diagram of hopper loading height 19
Figure 9 Schematic diagram of cloth radius 21
Figure 10 Schematic diagram of cloth height 22
Figure 11 Schematic diagram of arm section length 22
Figure 12 Schematic diagram of the fabric arm operating area 23
Figure 13 Schematic diagram of cloth arm expansion (retraction) movement 24
Figure 14 Schematic diagram of the rotary motion of the fabric arm 25
Figure 15 Schematic diagram of the rotation angle of the fabric arm 25
Figure 16 Schematic diagram of pressure measurement of the fabric arm system 26
Figure 17 Schematic diagram of outrigger span 29
Figure 18 Schematic diagram of load loading on the fabric arm 30
Figure 19 Schematic diagram of leg swing 31
Figure 20 Schematic diagram of horizontal extension of outriggers 32
Figure 21 Schematic diagram of the vertical cylinder extension of the outrigger 33
Figure A.1 Extrusion pump---single roller extrusion pump 35
Figure A.2 Extrusion pump---double roller extrusion pump 37
Table 1 Concrete pump quality measurement record 3
Table 2 Concrete pump truck overall dimensions measurement record 8
Table 3 Vehicle-mounted concrete pump overall dimensions measurement record 8
Table 4 Measurement record of trailer concrete pump dimensions 8
Table 5 Recommended concrete mix ratio 10
Table 6 Pipeline size record 11
Table 7 Concrete pump actual delivery volume measurement record 11
Table 8 Concrete pump delivery pressure measurement record 14
Table 9 Concrete pump pumping performance measurement record 14
Table 10 Single roller extrusion pump measurement record 16
Table 11 Double roller extrusion pump measurement record 18
Table 12 Concrete pump hopper loading height measurement record 19
Table 13 Concrete pump cleaning pump measurement record 20
Table 14 Measurement record of fabric arm performance 26
Table 15 Concrete pump leg span measurement record 29
Table 16 Maximum load measurement record of outriggers 30
Table 17 Outrigger speed and pressure measurement records 33
Preface
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.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Construction Machinery and Equipment (SAC/TC328).
This document was drafted by. Zoomlion Heavy Industry Science & Technology Co., Ltd., China Machinery Huanyu Certification & Inspection Co., Ltd., Sany Automobile Manufacturing Co., Ltd.
Co., Ltd., Xuzhou XCMG Shi Weiying Machinery Co., Ltd., Shenyang Jianzhu University, and Product Quality Standards Research Institute of the Ministry of Water Resources.
The main drafters of this document are. Fu Ling, Wang Jiaqian, Gao Rongzhi, Wan Liang, Huang Dawei, Tian Xiangyu, Zhao Peiheng, Zhang Tian, Zhang Songtao, Zhang Jianmin,
Hu Weimin, Shi Hao, Zhao Yinxiang, Yi Xiuming, Shen Qianli, Zhang Ao, and Feng Xinhong.
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.
3.1
Single-roller rotary pump
Concrete pump that discharges fresh concrete by squeezing an elastic tube through a single rotating roller.
3.2
Double-roller rotary pump
Concrete pump that discharges fresh concrete by squeezing an elastic tube through twin rotating rollers.
3.3
A device for storing, mixing and unloading concrete.
3.4
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;
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GB/T 25638.2-2025: Building construction machinery and equipment - Concrete pumps - Part 2: Procedure for examination of technical parameters
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