GB24386-2009
Gear grinding machines -safeguarding specifications
磨齿机 安全防护技术条件
GB 24386-2009 is a current mandatory Chinese national standard for Gear grinding machines -safeguarding specifications. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jul 1, 2010.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to general-purpose cylindrical gear grinding machines. It specifies the basic safeguarding technical requirements and measures, along with verification methods, to address the main hazards associated with these machine tools. It is mandatory for manufacturers producing gear grinding equipment for the Chinese market. The standard references GB 15760-2004 for general metal-cutting machine tool safety.
Technical requirements
The standard outlines comprehensive safety requirements to mitigate mechanical hazards, such as crushing, shearing, and entanglement risks associated with moving parts like grinding wheels and worktables. Manufacturers must ensure that moving parts do not create pinch points or shear hazards. It also addresses the prevention of component ejection and requires reliable clamping devices for grinding wheels and workpieces. Regarding electrical and control systems, the standard mandates compliance with GB 5226.1 for electrical equipment. It specifies requirements for control devices, start/stop mechanisms, and emergency stop functions to prevent unexpected start-up or hazardous movements during system failures. Control systems must be designed to fail-safe conditions. The document also covers noise limits, hazardous substance emissions (such as dust and oil mist), and fire/explosion prevention. It includes specific ergonomic requirements for operator interfaces, such as maximum operating forces for handwheels and appropriate installation heights for control panels, referencing GB/T 14775 and GB/T 16251. Furthermore, the standard details requirements for safeguarding devices, including fixed, movable, and adjustable guards, as well as interlocking mechanisms. Proper safety signs and user information must be provided to warn operators of residual risks.
Testing methods
Verification methods primarily involve visual inspection, functional checks, and measurement of specific parameters. Key tests include measuring noise sound pressure levels under no-load conditions (referencing GB/T 16769), testing oil mist concentration (referencing GB/T 23574), and verifying dust concentration (referencing GB/T 23573). Functional tests are also required for control systems, interlocking devices, and emergency stop functions.
FAQs
What products are regulated under GB 24386-2009?
It regulates general-purpose cylindrical gear grinding machines, specifying safety requirements to protect operators from mechanical, electrical, and other operational hazards.
Is GB 24386-2009 a mandatory standard?
Yes, most clauses are mandatory, although some sections regarding ergonomic recommendations and specific testing methods are recommended. Compliance is essential for market access in China.
How does this standard relate to other safety standards?
It works in conjunction with general machine safety standards like GB 15760-2004 and electrical safety standards like GB 5226.1, providing specific requirements tailored for gear grinding machines.
The summary above provides a high-level overview of GB 24386-2009. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 24386-2009 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- J56
- ICS
- 25.040.20
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology
Relationships
Replaced by:GB 15760-2025 (Upcoming)