GB28244-2012
Automatic metalforming machinery - Safety requirements
自动锻压机 安全技术要求
GB 28244-2012 is a current mandatory Chinese national standard for Automatic metalforming machinery - Safety requirements. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jan 1, 2013.
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
GB 28244-2012 applies to automatic metalforming machinery, including various cold heading machines and cold forming machines such as automatic cold headers, nut cold headers, thread rolling machines, and spring coiling machines. This standard is mandatory for manufacturers of these specified metalforming equipment entering the Chinese market. It does not apply to hot forging machinery.
Technical requirements
The standard specifies comprehensive requirements for the design, manufacturing, and safe operation of automatic metalforming machinery. It outlines the responsibilities of suppliers, users, and operators in ensuring machine safety. Suppliers must conduct risk assessments and eliminate hazards through inherent safe design or control them via appropriate safeguarding measures. Manufacturers must provide adequate safety guards and instruction manuals for every new machine. Regarding design and manufacturing, the standard mandates compliance with electrical safety (referencing GB 5226.1), pneumatic, and hydraulic systems. It specifies that control systems must have reliable stop and emergency stop functions, taking precedence over start circuits. Category 0 stop functions are mandatory, and emergency stop devices must be easily identifiable and accessible. The standard also covers operational modes like continuous run and jog modes, ensuring that jog controls prevent accidental operation. Additionally, it sets forth noise limits (referencing JB 9972 and JB 9975) and requires the provision of working platforms, ladders, and railings for safe access during maintenance at heights.
Testing methods
The standard outlines evaluation procedures for electrical safety, including protective bonding circuit continuity tests, insulation resistance tests, and dielectric withstand tests. It also requires noise level assessments to ensure compliance with specified acoustic limits. Furthermore, functional verification of interlocking guards and safety devices (such as photoelectric and presence sensing devices) is mandated to ensure they effectively stop hazardous motions during operation.
FAQs
What products are regulated under GB 28244-2012?
GB 28244-2012 regulates automatic metalforming machinery, specifically including automatic cold headers, nut cold headers, thread rolling machines, spring coiling machines, and multi-station cold formers. It is mandatory for all such equipment manufactured or sold in China.
What are the key electrical safety requirements in this standard?
The standard requires compliance with GB 5226.1 for electrical equipment. It mandates specific tests for protective bonding circuit continuity, insulation resistance, and dielectric withstand voltage to prevent electric shock and unexpected hazards.
Does GB 28244-2012 specify requirements for emergency stop functions?
Yes, every machine must have one or more emergency stop devices that can stop all hazardous movements. The emergency stop function must comply with Category 0 stop requirements as defined in GB 16754 and must override all other stop functions.
The summary above provides a high-level overview of GB 28244-2012. 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 28244-2012 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- J62
- ICS
- 25.120.10
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology
Relationships
Partially replaced by:GB 17120-2025 (Current)