GB28240-2012
Shears - Safety requirements
剪板机 安全技术要求
GB 28240-2012 is a current mandatory Chinese national standard for Shears - 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
This standard applies to guillotine shears and their ancillary devices used for cutting metal sheets or other materials such as cardboard, plastic, rubber, and leather. It is mandatory for manufacturers producing straight-line shearing machines for the Chinese market. This standard does *not* apply to non-straight-line shears or crocodile shears.
Technical requirements
The standard outlines comprehensive safety requirements to mitigate major hazards identified through risk assessment. It specifies design criteria for critical components, including clutches and brakes, where the use of band brakes for the beam is prohibited, and mandates that power source failures must result in immediate braking and clutch disengagement. For hydraulic and pneumatic systems, the standard requires safety valves, pressure regulation, and specific protective measures against fluid injection hazards. The electrical system must comply with *GB 5226.1*, featuring a minimum protection rating of IP54 for control panels and enclosures, and a Category 0 emergency stop function. A significant portion of the standard addresses the prevention of mechanical dangers in the operating area. Manufacturers must implement appropriate safety guards, such as fixed guards, interlocking guards, or photoelectric protection devices, to prevent access to the danger zone. The standard also defines requirements for control systems, mandating redundancy and monitoring for safety-related parts to prevent unexpected startups. Additional requirements cover the prevention of accidental gravity fall of the beam during maintenance, ergonomic design principles, noise limitation according to *GB 24389*, and the provision of adequate use information, including labeling and comprehensive instruction manuals.
Testing methods
Verification of safety requirements is conducted through a combination of methods: visual inspection to verify physical presence and condition, performance testing to check functional capabilities, measurement using instruments for specific parameters like safety distances, and drawing/calculation reviews to validate design features and compliance with theoretical limits.
FAQs
What products are regulated under GB 28240-2012?
It regulates guillotine shears and their ancillary devices designed for cutting metal sheets and other panel materials, excluding crocodile shears and non-straight-line shears.
Is GB 28240-2012 a mandatory standard?
Yes, with the exception of Chapter 3, Chapter 4, and Annex B which are recommended, the remaining clauses are mandatory for shears entering the Chinese market.
What are the key safety devices required by this standard?
The standard requires the implementation of fixed guards, interlocking guards, or photoelectric protection devices to prevent access to the danger zone, along with reliable clutch and brake mechanisms and Category 0 emergency stop functions.
The summary above provides a high-level overview of GB 28240-2012. 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 28240-2012 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)