GB28243-2012
Hydraulic press brakes - Safety requirements
液压板料折弯机 安全技术要求
GB 28243-2012 is a current mandatory Chinese national standard for Hydraulic press brakes - 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 28243-2012 applies to hydraulic press brakes used for cold working metal or partially metal materials, as well as machines using the same process for other materials like cardboard or plastics. It also covers the auxiliary devices of these press brakes. This standard is mandatory for manufacturers of hydraulic press brakes entering the Chinese market. It references GB 17120 and GB/T 15706.1 for general safety principles.
Technical requirements
The standard specifies comprehensive safety requirements to mitigate major hazards identified through risk assessment. It mandates specific measures to prevent accidental fall of the beam (for up-stroking press brakes), requiring mechanical or hydraulic support devices with automatic monitoring systems. For the operation danger zone, the standard outlines requirements for various safety protection devices, including fixed guards, interlocking guards, and photoelectric protection devices. It details the positioning, installation, and detection precision requirements for these systems to ensure operators cannot reach the danger zone before hazardous movements stop. Control systems must incorporate redundancy and monitoring functions, adhering to specific categories of safety-related parts. The standard also sets requirements for emergency stop functions, two-hand control devices, and mode selection switches to prevent unexpected startup. Additional requirements cover the protection against other mechanical hazards, electrical dangers, thermal risks, noise, and ergonomic principles. Manufacturers must ensure stability and provide adequate rescue measures for trapped personnel.
Testing methods
Verification of safety requirements is conducted through a combination of methods: visual inspection, performance testing/checking, measurement, and evaluation via drawings/calculations/technical data. The standard provides a comprehensive matrix detailing which verification method applies to each specific safety requirement, ensuring thorough compliance assessment.
FAQs
What products are regulated under GB 28243-2012?
It regulates hydraulic press brakes used for cold working metal or partially metal materials, and machines using the same process for materials like cardboard or plastics, including their auxiliary devices.
Are there specific requirements for photoelectric protection devices?
Yes, the standard details strict requirements for photoelectric protection devices, including detection precision, positioning (vertical, horizontal, angled), and minimum safety distances based on the overall system stopping performance.
How is the minimum safety distance calculated?
The minimum safety distance is calculated using the formula provided in Annex A, which considers the approach speed of the human body, the overall stopping response time of the press brake, and an additional distance based on the detection precision of the safety device.
The summary above provides a high-level overview of GB 28243-2012. 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 28243-2012 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)