GB/T 25432-2025 English PDF

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GB/T 25432-2025: Safety requirements of daylight press
Status: Valid

GB/T 25432: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25432-2025	1879	Add to Cart	10 days	Safety requirements of daylight press	Valid
GB 25432-2010	929	Add to Cart	7 days	Safety requirements of daylight press	Valid

Basic data

Standard ID: GB/T 25432-2025 (GB/T25432-2025)
Description (Translated English): Safety requirements of daylight press
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G95
Classification of International Standard: 71.120; 83.200
Word Count Estimation: 94,921
Date of Issue: 2025-08-29
Date of Implementation: 2026-08-01
Older Standard (superseded by this standard): GB 25432-2010
Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China

GB/T 25432-2025: Safety requirements of daylight press

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ICS 71.120;83.200 CCSG95 National Standards of the People's Republic of China Replaces GB 25432-2010 Safety requirements for flat vulcanizing machines Published on 2025-08-29 Implemented on August 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of Contents

Preface III Introduction IV 1.Scope 1 2 Normative References 1 3.Terms and Definitions 2 4.Safety requirements and/or protection/risk reduction measures 5. 4.1 General Rules 5 4.2 Basic Requirements for Safety Protection Devices 6 4.3 General Hazards 7 4.4 Hazards in Specific Areas 9 4.5 Hazards of Power-Operated Mold Clamping Systems 13 4.6 Hazards of Power-Operated Mold Changing Devices 14 4.7 Additional hazards related to specific designs 15 4.8 Additional Hazards of Auxiliary Equipment 17 5.Verification of safety requirements and/or protection/risk reduction measures 17 6.Instructions for Use 19 6.1 General Rules 19 6.2 Instruction Manual 19 6.3 Mark 22 6.4 Safety signs and alarm signals 22 Appendix A (Informative) Major Hazards 23 A.1 General Provisions 23 A.2 Danger Zone 23 of the Flat Vulcanizing Machine A.3 General Hazards 26 A.4 Hazards in specific areas of the machine 27 A.5 Hazards associated with power-operated mold clamping systems 28 A.6 Hazards associated with power-operated mold changing devices 28 A.7 Additional Hazards Related to Specific Designs 28 A.8 Additional hazards associated with the use of auxiliary devices 29 Appendix B (Normative) Type II Protection 30 B.1 Type II Protection (Active Protective Device for Hydraulic Shafts) 30 B.2 Type II Protection (Active Protection Device for Electric Drive Systems) 31 B.3 Type II Protection (Light Curtain for Hydraulic Shafts) 36 B.4 Type II Protection (Light Curtain for Electric Drive Systems) 37 Appendix C (Normative) Type III Protection 41 C.1 Type III Protection (Active Protective Device for Hydraulic Shafts) 41 C.2 Type III Protection (Active Protective Device for Electric Drive Systems) 49 C.3 Type III Protection (Light Curtain for Hydraulic Shafts) 67 C.4 Type III Protection (Light Curtain for Electric Drive Systems) 69 Appendix D (Normative) Confirmation System 76 D.1 Single Confirmation System 76 D.2 Dual Confirmation System 76 Appendix E (Normative) Use of Two-Handed Operating Devices in Mold Areas 77 E.1 General Requirements 77 E.2 Two-hand operating device for hydraulic shaft 77 E.3 Two-hand control device for electric drive system 78 Appendix F (Normative) Noise Test Procedure 85 F.1 Overview 85 F.2 Measurement of A-weighted sound pressure level at operator's workstation or other specified location 85 F.3 Measurement of A-weighted sound power 85 F.4 Installation and Installation Conditions for Noise Measurement 85 F.5 Operating Conditions 85 F.6 Information to be Recorded and Reported 86 F.7 Noise Emission Value Labelling and Verification 87 References 88

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 25432-2010 "Safety Requirements for Flat Vulcanizing Machines". Compared with GB 25432-2010, the only changes are structural adjustments and editing. Aside from the sexual alterations, the main technical changes are as follows. a) The terms "magnetic clamping system", "electric drive system", "motor", and "motor control unit" have been added (see Chapter 3); b) The "Example of a frame-plate structure upward-moving single-layer flat vulcanizing machine" has been deleted (see Figure 7 in the.2010 edition); c) Increased safety performance level requirements for protective measures (see 4.3.1.1, 4.4.1.1.1, 4.4.1.1.4, 4.4.1.1.5, 4.4.1.1.6); d) Added "Safe Torque Cancellation (STO)" (see 4.4.1.1.6.1); e) The normative appendix “Type I Active Interlocking Protective Device” has been deleted (see Appendix A of the.2010 edition); f) Increased risks of electromagnetic interference and mechanical design failure to adhere to ergonomic principles (see A.3.8, A.3.9); g) Increased hazards associated with power-operated mold clamping systems and power-operated mold changing devices (see A.5, A.6); h) Additional hazards related to a specific design have been changed (see A.7, 4.5 of the.2010 edition); i) The additional hazards associated with the use of assistive devices have been changed (see A.8, 4.6 of the.2010 edition); j) The normative appendix “Type II Active Interlocking Protective Device” has been amended (see Appendix B, Appendix B of the.2010 edition); k) The normative appendix “Type III Active Interlocking Protective Device” has been amended (see Appendix C, Appendix C of the.2010 edition); l) The normative appendix "Light Curtain Type Electronic Induction Protection Device" (see Appendix D of the.2010 edition) has been deleted; m) A normative appendix, "Confirmation System," has been added (see Appendix D); n) The normative appendix “Two-handed control device” has been amended (see Appendix E, Appendix E of the.2010 edition); o) The normative appendix "Use of proportional valves for hot plate motion" has been deleted (see Appendix G of the.2010 edition); p) The normative appendix “Additional requirements for the second circuit breaker in Figure C.1” has been deleted (see Appendix H in the.2010 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Rubber and Plastics Machinery (SAC/TC71). This document was drafted by. Yiyang Rubber & Plastics Machinery Group Co., Ltd., Yuyao Huatai Rubber & Plastics Machinery Co., Ltd., and Guangdong Yizumi Precision Machinery Co., Ltd. Rubber & Plastics Equipment Technology Co., Ltd., Ningbo Qianpu Machinery Manufacturing Co., Ltd., Dalian Rubber & Plastics Machinery Co., Ltd., Qingdao Hailang Special Equipment Technology Co., Ltd., Matsuda Industrial Technology (Wuxi) Co., Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd., National Plastics Machinery Products Quality Supervision and Inspection Center. The main drafters of this document are. Xu Zhi, Chen Xingzhong, Shen Gongneng, Li Xiaohai, Hong Jun, Liu Dandan, Sun Youping, Wang Hufa, He Cheng, and Wang Gengxin. Zheng Ji and Wu Jianming. The release history of this document and the document it replaces is as follows. ---First published in.2010 as GB 25432-2010; ---This is the first revision.

introduction

According to the classification of GB/T 15706-2012, this document belongs to Class C standards. This document is particularly relevant to the following stakeholders related to machinery safety. ---Machine manufacturer; ---Health and Safety Agency. Other stakeholders affected by the level of mechanical safety include. ---Machine users; ---Machine owner; ---Service provider; ---Consumer (when the machine is scheduled to be used by the consumer). All of the aforementioned stakeholders may participate in the drafting of this document. The scope of the machinery involved, as well as the hazards, hazardous conditions, and dangerous events covered, is given in the scope of this document. When the requirements of this document differ from those in Category A or Category B standards, for machines designed and manufactured in accordance with this document... For this instrument, the requirements of this document take precedence over the requirements of other standards. Safety requirements for flat vulcanizing machines 1.Scope This document specifies the safety requirements for the design and manufacture of flat vulcanizing machines for rubber and rubber-plastic blends with a stroke exceeding 6 mm. This document applies to the entire lifecycle of the flat vulcanizing machine (see section 5.4 of GB/T 15706-2012), during the intended use process. In addition, all significant hazards related to the flat vulcanizing machine that may arise from misuse that the manufacturer could reasonably foresee, and in cases of such misuse. Hazardous conditions and hazardous events (see Appendix A). This document specifies the additional hazards posed by the following devices. --- Reciprocating/rotary tables used for mold loading/unloading and/or cooling; ---Magnetic clamping system. This document does not include auxiliary devices (3.10), but only covers the interaction between the flat vulcanizing machine and auxiliary devices (especially the mold loading/unloading device). Additional dangers caused by it. This document does not cover the following machines. ---Pneumatic rubber and plastic vulcanizing machine; ---Tire shaping and vulcanizing machine; ---Inner tubes and various capsule vulcanizing machines. This document does not include. ---The material processing process may pose a risk of explosion; ---Requirements for equipment and protection systems used in potentially explosive environments; ---Design requirements for exhaust ventilation systems.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 3766-2015 General rules and safety requirements for hydraulic transmission systems and their components GB/T 3767 Engineering method for determining the sound power level and sound energy level of a noise source using acoustic pressure method in an approximately free field above a reflecting surface. GB/T 3768 Acoustic pressure method for determining the sound power level and sound energy level of a noise source using a simplified measurement method based on the envelope above the reflecting surface. Easy Method GB/T 4208 Degrees of protection provided by enclosures (IP code) GB/T 5226.1-2019 Electrical Safety of Machinery - Electrical Equipment of Machinery - Part 1.General Technical Conditions GB/T 5563-2013 Hydrostatic Test Methods for Rubber and Plastic Hoses and Hose Assemblies GB/T 7932 General rules and safety requirements for pneumatic systems and their components GB/T 8196 General requirements for the design and manufacture of fixed and movable protective devices for mechanical safety. GB/T 9574-2017 Verification pressure, burst pressure to maximum working pressure ratio of rubber and plastic hoses and hose assemblies GB/T 12668.501-2013 Speed-regulating electrical drives – Part 5-1.Safety requirements (electrical, thermal and energy) GB/T 14048.13-2017 Low-voltage switchgear and controlgear – Part 5-3.Control circuit appliances and switching elements in fault conditions Requirements for proximity switches (PDDBs) with defined functions under fault conditions ......

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