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GB/T 25432-2025Safety requirements of daylight press (English PDF)

平板硫化机安全要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

August 1, 2026

Scope

GB/T 25432-2025 is the English-translated version of 平板硫化机安全要求.

GB/T 25432-2025 is the Chinese standard "Safety requirements of daylight press". Its scope clause reads: 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.

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Document preview — GB/T 25432-2025

National Standard of the People's Republic of China

ICS: 71.120
Classification: G 95
Replacing: GB 25432-2010

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
Introduction
1.Scope
2 Normative References
3.Terms and Definitions
4.1 General Rules
4.2 Basic Requirements for Safety Protection Devices
4.3 General Hazards
4.4 Hazards in Specific Areas
4.5 Hazards of Power-Operated Mold Clamping Systems
4.6 Hazards of Power-Operated Mold Changing Devices
4.7 Additional hazards related to specific designs
4.8 Additional Hazards of Auxiliary Equipment
5.Verification of safety requirements and/or protection/risk reduction measures
6.Instructions for Use
6.1 General Rules
6.2 Instruction Manual
6.3 Mark
6.4 Safety signs and alarm signals
Appendix A (Informative) Major Hazards
Appendix B (Normative) Type II Protection
Appendix C (Normative) Type III Protection
Appendix D (Normative) Confirmation System
Appendix E (Normative) Use of Two-Handed Operating Devices in Mold Areas
Appendix F (Normative) Noise Test Procedure
References

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

GB/T 45132 | GB/T 25156 | GB/T 32662 | GB/T 25431.2 | GB/T 25431.1 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 75 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

GB 46035-2025Rubber and plastics machinery - General safety requirements

Editions of GB/T 25432

Edition	Title	Revision	Status
GB/T 25432-2025	Safety requirements of daylight press	current edition	Current
GB 25432-2010	Safety requirements of daylight press	previous edition	In force

This page sells the current edition, GB/T 25432-2025. Earlier editions are listed for reference only.

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