Standard No.:	GB 20179-2006
English Name:	Safety of woodworking machines - Circular saw benches (with or without travelling table) and dimension saw
Chinese Name:	木工机床安全 手动进给圆锯机和带移动工作台锯板机
Chinese Classification:	J65    Woodworking machine and machine tool
Professional Classification:	GB    National Standard
ICS Classification:	79.120.10 79.120.10    Woodworking machines 79.120.10
Issued by:	AQSIQ SAC
Issued on:	2006-3-29
Implemented on:	2006-11-1
Status:	valid
Superseding:	JB 5723-1991 单锯片手动进给木工圆锯机 结构安全
Language:	English
File Format:	PDF
Word Count:	14000 words
Price(USD):	350.0
Delivery:	via email in 1 business day

This standard is applicable to the single sawblade circular saw bench (with or without travelling table) and the circular sawing machine with travelling table (dimension saw) (hereinafter referred to as "machines"). They are designed to cut solid wood, chipboard, fiberboard, plywood and also these materials where they are covered with plastics edging and/or plastics (light alloy) laminates. This standard is applicable to the machine manufactured after the implementation date of this standard. This standard is not applicable to the hand-rocking universal circular saw bench; table-top circular saw bench and hand-held circular saw bench. This standard specifies the safety technical requirements and inspection methods of the machine.

Foreword III 1 Scope 2 Normative References 3 Terms and Definitions 4 List of Hazards 5 Safety Requirements and/or Measures 5.1 Control and Command Devices 5.1.1 Safety and Reliability of Control System 5.1.2 Position of Controls 5.1.3 Starting 5.1.4 Normal Stopping 5.1.5 Emergency Stop 5.1.6 Mode Selection 5.1.7 Speed Changing 5.1.8 Failure of the Power Supply 5.1.9 Failure of Control Circuits 5.1.10 Power Operated Movement of the Sawblade and/or Fence 5.2 Protection Against Mechanical Hazards 5.2.1 Stability 5.2.2 Risk of Break-up during Operation 5.2.3 Tool Holder and Tool Design 5.2.4 Braking 5.2.4.1 General 5.2.4.2 Test Conditions 5.2.4.3 Tests 5.2.5 Devices to Minimize the Possibility of Ejection 5.2.6 Workpiece Supports and Guides 5.2.6.1 Workpiece Guides and Fences 5.2.6.2 Table Size 5.2.6.3 Extension Tables 5.2.6.4 Travelling Table 5.2.7 Prevention of Access to Moving Parts 5.2.7.1 Guarding of the Tools 5.2.7.2 Guarding of Drives 5.2.8 Clamping Devices 5.2.9 Safety Appliance (Work Device with Protecting Function) 5.3 Protection against Non-mechanical Hazards 5.3.1 Fire and Explosion 5.3.2 Noise 5.3.2.1 Noise Reduction at the Design Stage 5.3.2.2 Noise Measurement 5.3.2.3 Noise Declaration 5.3.3 Emission of Chips, Dust and Harmful Gases 5.3.4 Electrical Equipment 5.3.5 Requirements for Ergonomics and Safe Handling 5.3.6 Lighting 5.3.7 Pneumatic 5.3.8 Hydraulic device 5.3.9 Heat 5.3.10 Hazardous Materials 5.3.11 Vibration 5.3.12 Laser 5.3.13 Static electricity 5.3.14 Errors of fitting 5.3.15 Isolation of energy transfer 5.3.16 Maintenance 6 Information for Use 6.1 Warning Devices 6.2 Marking 6.2.1 Marking of Riving Knives 6.2.2 Marking of the Machine 6.3 Instruction Handbook Appendix A (Normative) Test for Rigidity of Building Site Saws Appendix B (Normative) Test of Geometric Accuracy of Saw Spindle Appendix C (Normative) Riving Knife Mounting Strength Test C.1 Strength Test of the Riving Knife Appendix D (Normative) Riving Knife Lateral Stability Test D.1 Test Requirement Appendix E (Normative) Machine Table and Insert Minimum Dimensions Appendix F (Normative) Test for Stability of Sawblade Guard F.1 Sawblade Guard Mounted Separately from Riving Knife F.2 Sawblade Guard Mounted on the Riving Knife Appendix G (Normative) Operating Conditions of Machine During Noise Measurement G.1 General G.2 Noise Measurement G.3 Data Sheet for Noise Measurement of the Machine Appendix H (Informative) Safe Working Practice H.1 Use of Push Block and Push Stick H.2 Selection of Sawblade and Riving Knife H.3 Selection of riving knife H.4 Fixing of Sawblade to Spindle H.5 Lighting