GB/T 25936.1-2024 English PDFUS$479.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25936.1-2024: Rubber and plastics size reduction machines - Part 1: Safety requirements for blade granulators Status: Valid GB/T 25936.1: Historical versions
Basic dataStandard ID: GB/T 25936.1-2024 (GB/T25936.1-2024)Description (Translated English): Rubber and plastics size reduction machines - Part 1: Safety requirements for blade granulators Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G95 Word Count Estimation: 24,287 Date of Issue: 2024-08-23 Date of Implementation: 2024-08-23 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 25936.1-2024: Rubber and plastics size reduction machines - Part 1: Safety requirements for blade granulators---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Rubber and plastics size reduction machines - Part 1.Safety requirements for blade granulators Rubber and plastic crushing machinery Part 1.Safety requirements for blade crushers Rubber and plastics size reduction machines- Part 1.Safety requirements for blade granulators ICS 71.120; 83.200 CCS G95 National Standard of the People's Republic of China Replaces GB 25936.1-2012 Released on 2024-08-23 2025-03-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface ... Ⅲ Introduction ... V 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions 2 4 Safety requirements and/or protection/risk reduction measures ... 4 4.1 General requirements ... 4 4.2 Mechanical hazards ... 4 4.3 Noise Hazards 6 4.4 Dangers caused by loss of stability of machinery 6 4.5 Electrical Hazards 6 4.6 Dangers of Ignoring Ergonomic Principles 7 5 Verification of safety requirements and/or protection/risk reduction measures 7 6 Usage Information ... 8 6.1 General requirements 8 6.2 User Manual ... 8 6.3 Marking 9 6.4 Warning signs 9 Appendix A (Informative) Major Hazards 10 Appendix B (Normative) Noise Test Procedure ... 11 B.1 General Principles 11 B.2 Determination of A-weighted emission sound pressure level at the operating position 11 B.3 Determination of A-weighted sound power level 11 B.4 Installation and operating conditions for noise testing 12 B.5 Information to be recorded 12 B.6 Declaration and verification of noise emission values 13 References ... 15ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document is Part 1 of GB/T 25936 Rubber and Plastic Crushing Machinery. GB/T 25936 has been published in the following parts. ——Part 1.Safety requirements for blade crushers; ——Part 2.Safety requirements for strand pelletizers; —— Part 3.Safety requirements for shredders; ——Part 4.Safety requirements for pelletizers. This document replaces GB 25936.1-2012 "Rubber and plastics crushing machinery Part 1.Safety requirements for blade crushers" and Compared with GB 25936.1-2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows. The scope of the document has been changed (see Chapter 1, Chapter 1 of the.2012 edition); a) The schematic diagram of the blade crusher has been changed (see Figure 1, Figure 1 of the.2012 edition); b) Added a schematic diagram of a blade crusher with a feeding device (see Figure 2); c) The requirements for crushing chamber have been changed (see 4.2.1, 5.2.1 of the.2012 edition); d) Added the requirements for the performance level PL r of the safety-related parts of the control system (see 4.2.1.2, 4.2.2.1.5, 4.2.3, 4.5.6); e) The requirements for entry through openings have been changed (see 4.2.1.2, 5.2.1.2 of the.2012 edition); f) The requirements for feeding area have been changed (see 4.2.2, 5.2.2 of the.2012 edition); g) Added the requirement that the feed opening should be higher than 0.4m and wider than 0.5m (see 4.2.2.1.2); h) Added requirements for discharge area (see 4.2.3); i) The requirements for noise control measures have been changed (see 4.3.2.2, 5.3.2.2 of the.2012 edition); j) Changed the noise test requirements (see 4.3.3, 5.3.3 of the.2012 edition); k) The potential for hazards arising from processed materials has been deleted (see 5.4 of the.2012 edition); l) Changed the general provisions for electrical hazards (see 4.5.1, 5.6.1 of the.2012 edition); m) The basic protection requirements have been changed (see 4.5.4, 5.6.4 of the.2012 edition); n) Changed the requirements for fault protection (see 4.5.5, 5.6.5 of the.2012 edition); o) The emergency stop requirements have been changed (see 4.5.6, 5.6.6 and 5.6.7 of the.2012 edition); p) Deleted testing and verification (see 5.6.8 of the.2012 edition); q) Increased risk of ignoring ergonomic principles (see 4.6); r) Changed the verification methods for safety requirements and/or protection/risk reduction measures (see Chapter 5, Chapter 6 of the.2012 edition); s) Added general requirements for usage information (see 6.1); t) Changed the instruction manual (see 6.2, 7.1 of the.2012 edition); u) Added the requirements for warning signs (see 6.4); v) Change the “List of Major Hazards” to an informative appendix (see Appendix A, Chapter 4 of the.2012 edition); w) The noise test procedure has been changed (see Appendix B, Appendix A of the.2012 edition). x) Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Rubber and Plastics Machinery (SAC/TC 71). This document was drafted by. Dongguan Xinyi Electric Heating Machinery Co., Ltd., Jiangsu Bell Machinery Co., Ltd., Chuzhou Weifeng Resource Recycling Equipment Co., Ltd. Ltd., Ningbo Bosman Electric Co., Ltd., Ningbo Huare Machinery Manufacturing Co., Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd., Qingdao University of Science and Technology, Shenzhen Kunyou Petrochemical Technology Co., Ltd., Zhejiang Jiegang Technology Co., Ltd., National Plastic Machinery Product Quality Supervision and Inspection center. The main drafters of this document are. Xie Zhongming, Li Shuen, Hu Deyun, Li Yi, Lu Huaqiao, Xu Xiaojun, Wang Gengxin, Wang Chuansheng, Ma Daolin, He Cheng, Zhang Zaijiang, Zheng Tongda, and Wang Kedi. The previous versions of this document and the documents it replaces are as follows. First published in.2012 as GB 25936.1-2012; This is the first revision. -IntroductionAccording to the classification of GB/T 15706-2012, this document belongs to Class C standard. This document is particularly relevant to the following stakeholders involved in machinery safety. Machine manufacturers;- Health and Safety Agency. - Other stakeholders affected by the level of machinery safety are. Machine users;- The owner of the machine;- Service providers;- Consumer (when the machine is intended for use by a consumer). - All of the above stakeholders may participate in the drafting of this document. The machines involved and the range of hazards, hazardous situations and hazardous events covered are given in the scope of this document. When the requirements of this document differ from those in Category A or Category B standards, for machines designed and manufactured in accordance with this document, this document Requirements in this document take precedence over requirements in other standards. Rubber and plastic crushing machinery mainly consists of blade crusher, strand pelletizer, shredder and pelletizer, so GB/T 25936 "Rubber and Plastic Crushing Machinery" is divided into the following four parts according to the equipment classification. Part 1.Safety requirements for blade crushers. The purpose is to specify the requirements for crushing rubber and plastic materials with blades in the crushing chamber. Safety requirements for the design and manufacture of blade crushers that crush the material until it can pass through the screen holes of appropriate specifications and enter the discharge area. requirements and provide instructions for safe use of the machine. Part 2.Safety requirements for strand pelletizers. The purpose is to specify the requirements for cutting rubber and plastic strip materials into regular shapes in the cutting chamber. The safety requirements for the design and manufacture of the strand pelletizer are determined, and relevant instructions for the safe use of the machine are given. Part 3.Safety requirements for shredders. The purpose is to specify the requirements for shredders that are used to shred rubber and plastic materials on one or more slow-moving shafts. The safety requirements for the design and manufacture of shredders for shredding materials are set out, and relevant instructions for the safe use of the machine are given. Part 4.Safety requirements for pelletizers. The purpose is to specify the requirements for pelletizing waste thermoplastics to change their shape, size and flow in a closed room. Safety requirements for the design and manufacture of dynamic agglomerators are specified, and instructions for safe use of the machines are given. Rubber and plastic crushing machinery Part 1.Safety requirements for blade crushers1 ScopeThis document specifies the safety requirements for the design and manufacture of blade crushers (hereinafter referred to as “crushers”) and gives the safety requirements for the safe use of the machine. Instructions for use. This document is applicable to the treatment of the crusher during its life cycle (see 5.4 of GB/T 15706-2012) and during its intended use. All significant hazards, hazardous conditions and hazardous events associated with the crusher in the event of misuse which is reasonably foreseeable by the manufacturer (See Appendix A). This document does not apply to. Feeding or discharging equipment not part of the crusher;- Crusher for processing hazardous or flammable materials. -2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies. in this document. GB/T 3767 Acoustics - Determination of sound power level and sound energy level of noise source by sound pressure method - Engineering method for approximate free field above reflecting surface GB/T 5226.1-2019 Electrical safety of machinery Electrical equipment of machinery Part 1.General technical requirements GB/T 8196 Mechanical safety guards - General requirements for the design and manufacture of fixed and movable guards GB/T 14574 Labeling and verification of noise emission values of acoustic machines and equipment GB/T 15706-2012 General principles for safety design of machinery - Risk assessment and risk reduction GB/T 16404.2-1999 Acoustics - Determination of sound power level of noise sources by sound intensity method - Part 2.Scanning measurement GB/T 16754 Design principles for mechanical safety emergency stop function GB/T 16855.1 Safety-related components of mechanical control systems Part 1.General principles for design GB/T 17248.2 Noise emitted by acoustic machines and equipment Approximate free field above a reflecting surface with negligible environmental correction Determination of emission sound pressure levels at working positions and other specified locations GB/T 17248.3 Acoustics Noise emitted by machines and equipment measured at working position and other specified positions using approximate environmental correction The emission sound pressure level GB/T 17248.5-2018 Noise emitted by acoustic machines and equipment is measured using accurate environmental corrections for working positions and other indicators. Emission sound pressure level at a fixed position GB/T 17888 (all parts) Safety of machinery - Fixed devices for access to machinery GB/T 18831 Design and selection principles for interlocking devices related to mechanical safety and protective devices GB/T 19670 Safety of machinery - Prevention of unexpected start-up GB/T 19671-2022 Design and selection principles for safe two-hand control devices for machinery GB/T 19876-2012 Safety of machinery Positioning of safety guards related to approach speeds of human parts GB/T 23821-2022 Mechanical safety Safety distance to prevent upper and lower limbs from touching hazardous areas GB/T 36587 Rubber and Plastics Machinery Terminology ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25936.1-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 25936.1-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. 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