GB20905-2025
Foundry machinery—Safety requirements
铸造机械 安全要求
GB 20905-2025 is an upcoming mandatory Chinese national standard for Foundry machinery—Safety requirements. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Aug 1, 2026.
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 specifies the safety requirements for foundry machinery, including general and specific requirements for various types of equipment. It applies to the manufacturing of foundry machinery such as sand preparation and reclamation equipment, molding and core-making machines, die casting machines, and casting cleaning equipment. This standard is mandatory for all manufacturers of foundry equipment in China. It replaces the previous GB 20905-2007 and introduces updated safety protocols for modern foundry operations.
Technical requirements
The standard outlines a comprehensive safety framework based on risk assessment and risk reduction principles. Manufacturers must eliminate hazards through inherently safe design, followed by safeguarding and protective measures, and finally through information for use. Manufacturers must conduct a thorough risk assessment for their products. General requirements cover the structural stability of machines, protection of moving parts against entanglement, and the mandatory installation of emergency stop devices at all operator stations. It also specifies strict guidelines for electrical equipment, control systems, and hydraulic/pneumatic systems, referencing other national standards like GB/T 5226.1 for electrical safety. Specific requirements are detailed for various foundry equipment categories. For instance, die casting machines with tie-bar spacing over 650mm require independent start switches, and super-large die casting machines (clamping force ≥60000kN) need advanced protective devices and interlock systems. Cupolas and melting equipment must have robust cooling system testing and explosion relief devices. All specialized equipment must adhere to its specific safety interlocks and protective measures. The standard also mandates clear warning information and comprehensive instruction manuals that meet the requirements of GB/T 42598, ensuring operators are fully informed of residual risks and proper maintenance procedures.
Testing methods
The standard references various testing and evaluation methods to verify compliance, primarily focusing on visual inspections, functional tests of safety interlocks, and verification of protective measures. Key tests include pressure resistance tests for cupola cooling water jackets and water-cooled tuyeres, non-destructive testing of ladle shafts according to GB/T 37400.15-2019, and functional checks of emergency stop and interlocking devices.
FAQs
What products are regulated under GB 20905-2025?
GB 20905-2025 regulates foundry machinery, including sand preparation equipment, molding and core-making machines, die casting machines, low-pressure casting machines, cupolas, pouring equipment, and casting cleaning machines.
Are there any updates from the previous version of GB 20905-2007?
Yes, the 2025 version introduces a new chapter on terms and definitions, adds general requirements for foundry robot systems, and includes specific safety requirements for various specialized equipment. It also removes outdated requirements for pressure vessels and lubrication systems.
Does GB 20905-2025 reference international standards?
The standard primarily references Chinese national standards (GB and GB/T), such as GB/T 15706 for risk assessment and GB 11291 for industrial robot safety. It is classified as a Type C standard according to GB/T 15706.
The summary above provides a high-level overview of GB 20905-2025. To ensure complete compliance for your foundry machinery entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 20905-2025 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- J61
- ICS
- 25.120.30
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- National Technical Committee on Foundry Machinery of Standardization Administration of China
Relationships
Replaces:GB 20905-2007 (Current)