GB13887-2008
Safety codes for cold pressing
冷冲压安全规程
GB 13887-2008 is a current mandatory Chinese national standard for Safety codes for cold pressing. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Oct 1, 2009.
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 13887-2008 applies to the cold pressing production field, covering safety requirements for stamping parts, processes, mechanical and hydraulic presses, safety devices, and dies. This standard is mandatory for all manufacturers and facilities involved in cold stamping operations. It is not applicable to hot forging or non-metallic stamping processes.
Technical requirements
This standard specifies comprehensive safety requirements across several critical areas. First, it mandates structural and process design principles for stamping parts to ensure inherent manufacturability and hazard prevention. Second, it details extensive safety requirements for presses, including transmission control systems, friction and rigid clutches, hydraulic control systems, and slide balancing devices. Presses must be equipped with reliable emergency stop mechanisms and interlocking control systems. The standard also defines strict requirements for safety devices, prioritizing physical safety guards and sensor-based safety control devices (such as photoelectric and capacitive types) to prevent operator access to the danger zone during slide descent. Furthermore, it outlines safety specifications for die design and manufacturing, including structural symmetry, weight distribution, fastening methods, and limit devices to prevent accidental descent. Additionally, the standard regulates die installation and debugging procedures, requiring specific locking sequences and safety blocks. It also mandates preventive measures against press overload and overheating, requiring overload protection devices and safety valves. Finally, it sets forth operational norms, equipment inspection protocols, and vibration/noise control measures.
Testing methods
The standard outlines evaluation procedures primarily focusing on overload testing and operational safety performance. It specifies that presses must undergo an overload test at 110% of the nominal force. Additionally, it details measurement methods for the inertia descent value of hydraulic press slides during emergency stops, and defines calculation formulas for determining the minimum safe distance for sensor-based and two-hand safety control devices based on stopping time.
FAQs
What products and operations are regulated under GB 13887-2008?
GB 13887-2008 regulates cold pressing production, including the safety of mechanical presses, hydraulic presses, dies, and safety devices used in metal stamping facilities.
Are there any significant updates from the previous version of GB 13887?
The 2008 version is a mandatory revision that added safety requirements for clutches, brakes, screw presses, and upper pneumatic/spring cushions, while removing outdated content from the 1992 edition.
Is compliance with GB 13887-2008 mandatory for foreign manufacturers?
Yes, GB 13887-2008 is a mandatory national standard. All technical content within this standard is compulsory for applicable cold pressing operations in China.
The summary above provides a high-level overview of GB 13887-2008. 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 13887-2008 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- C68
- ICS
- 13.100
- Competent department
- Ministry of Emergency Management
- Technical committee
- National Technical Committee on Work Safety of Standardization Administration of China
Relationships
Replaces:GB 13887-1992