GB 25431.1-2010
Extruders and extrusion lines for rubber and plastics.Part 1:Safety requirements for extruders (English Version)

Standard No.

GB 25431.1-2010

Language

Chinese, Available in English version

Release Date

2010

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 25431.1-2010

Scope

For the hazards listed in Clause 4.1 and Chapter 5, this part of GB 25431 specifies the safety requirements for the design and manufacture of the following types of rubber and plastic screw extruders: single-screw extruder; twin-screw extruder extruder; multi-screw/compound screw extruder; hot-feed extruder; cold-feed extruder; vented extruder; pin extruder. This part also covers the following feeding systems: bucket feeding systems; single roller feeding systems; twin roller feeding systems; body connector; static mixer; exhaust device; shear head device; extruder head (this section is only applicable to the head that gives the prototype of the plasticized material). This section does not apply to extruders without screws, for example: piston extruders; disc extruders; roller extruders.

GB 25431.1-2010 Referenced Document

• GB 12265.3-1997 Safety of machinery--Minimum gaps to avoid crushing of parts of the human body
• GB 16754-2008 Safety of machinery.Emergency stop.Principles for design
• GB 4208-2008 Degrees of protection provided by enclosure(IP code)
• GB 5226.1-2008 Electrical safety of machinery - Electrical equipment for machinery - Part 1: General specifications
• GB/T 14367 Acoustics. Determination of sound power levels of noise sources. Guidelines for the use of basic standards
• GB/T 14574-2000 Acoustics-Declaration and verification of noise emission values of machinery and equipment
• GB/T 15706.1-1995 Safety machinery--Basic, concept, general principles for design--Part 1: Basic terminology, methodology
• GB/T 15706.1-2007 Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology
• GB/T 15706.2-2007 Safety of machinery Basic concepts, general principles for design Part 2: Technical principles
• GB/T 16404 Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 1: Measurement at discrete points
• GB/T 16855.1-2008 Safety of machinery.Safety related parts of control systems.Part 1: General principles for design
• GB/T 17248.2 Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections*， 2018-12-28 Update
• GB/T 17248.5 Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections*， 2018-12-28 Update
• GB/T 18153-2000 Safety of machinery-Temperatures of touchable surfaces-Ergonomics data to establish temperature limit values for hot surfaces
• GB/T 18569.1-2020 Safety of machinery—Reduction of risks to health resulting from hazardous substances emitted by machinery—Part 1: Principles and specifications for machinery manufacturers*， 2020-06-02 Update
• GB/T 3767-1996 Acoustics--Determination of sound power levels of noise sources using sound pressure--Engineering method in an essentially free field over a reflecting plane
• GB/T 8196-2003 Safety of machinery--Guards--General requirements for the design and construction of fixed and movable guards

GB 25431.1-2010 history

• 2010 GB 25431.1-2010 Extruders and extrusion lines for rubber and plastics.Part 1:Safety requirements for extruders

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