GB28760-2012

Tube bending machine - Safety requirements

弯管机安全技术要求

GB 28760-2012 es una norma nacional china obligatoria vigente: Tube bending machine - Safety requirements. Sector: Electrónica. Enfoque: Seguridad de productos. Entrada en vigor: 1 oct 2013.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to cold-state winding tube bending machines, including mechanical, hydraulic, CNC, and small-radius tube bending machines, as well as possible loading and unloading auxiliary devices. It does not apply to dedicated tube benders, auxiliary equipment like sawing or pipe end forming machines, or production lines composed of dedicated tube bending machines. Manufacturers must verify if their equipment falls under this specific category to ensure compliance.

Requisitos técnicos

The standard outlines comprehensive safety requirements and protective measures based on risk assessment. It addresses major hazards such as mechanical, electrical, thermal, and noise hazards. Key areas include the design of moving parts like the bend arm and feeding carriage, requiring reliable anti-overtravel and anti-crush safety measures. For hydraulic and pneumatic systems, the standard mandates safety valves, pressure gauges, and hydraulic locking valves to prevent accidental pressure loss or workpiece drop. The electrical system must comply with GB 5226.1, featuring Category 0 emergency stop functions and interlocking devices. Control systems must ensure that the machine cannot restart automatically after a fault or power interruption. Additionally, the standard specifies requirements for safety devices such as safety baffles, sensitive protective devices, and photoelectric protection devices. It also covers software functionality, requiring jog and step modes for safe adjustment, and mandates clear safety colors and signs on moving parts.

Métodos de ensayo

Verification of safety requirements is conducted through four primary methods: visual inspection, performance testing/checking, measurement using instruments, and review of drawings/calculations/technical data. Manufacturers must apply one or more of these methods to validate compliance with each specified safety measure.

Preguntas frecuentes

What products are regulated under GB 28760-2012?

It regulates cold-state winding tube bending machines, including mechanical, hydraulic, CNC, and small-radius types, along with their loading/unloading auxiliary devices.

Are there specific requirements for control systems in GB 28760-2012?

Yes, control systems must have safety functions that prevent automatic restart after power loss or fault. They must also include manual reset functions and Category 0 emergency stop capabilities.

Does GB 28760-2012 reference international standards?

Yes, it references several ISO and IEC standards, such as ISO 12100 for basic safety concepts and IEC 60204-1 (via GB 5226.1) for electrical equipment of machinery.

The summary above provides a high-level overview of GB 28760-2012. To ensure complete compliance for your tube bending machines entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 28760-2012 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Seguridad
CCS: J62
ICS: 25.120.10
Organismo competente: Ministry of Industry and Information Technology
Comité técnico: Ministry of Industry and Information Technology

Relaciones

Sustituida parcialmente por:GB 17120-2025 (Vigente)