Avira Free Antivirus 9. Driver Booster 4. Advanced SystemCare Free 2. WinRAR 2. Adobe Flash Player 1. Minecraft 1. K-Lite Codec Pack Google Earth Turnkey machine safety solutions for a safe and compliant working environment. There is no hiding from the fact that guarding is a crucial element of a machine or production line, yet the guarding design is often left until last and not given as much thought as the aspects that are seen to relate directly to productivity.
A perceived difficulty with designing guards is that there are numerous regulations and standards that must be complied with. Alternatively, specialists such as Procter Machine Safety can be employed to undertake the complete design, manufacture and installation, including electrical aspects. This guide seeks to direct the reader towards the main standards for machine guarding and machinery safety in general, as well as providing some advice on how the standards can be applied.
At the end, there are lists of useful resources and sources of additional information. But many still see machine guarding expenditure as a necessary evil rather than a key investment that can really help deliver improved productivity. If guards are well designed they will not interfere with an efficient operation; ill-considered guards invariably do. Worse than that, poorly designed guards encourage operators, maintenance staff and management to bypass them, which can compromise quality and significantly increase risks.
To comply with the requirements of The Supply of Machinery Safety Regulations , a machine needs to pass these tests:. In certain circumstances, therefore, machine guards need to be CE marked. Alternatively, contact Procter Machine Safety if in doubt whether or not there is a need to CE mark guards or, indeed, other components for which guarding is a secondary function such as covers, lids and acoustic enclosures.
In practice, the way suppliers and users of machines can most easily meet their legal obligations is to ensure that their machines, guards and other safety devices conform to harmonised European standards Euronorms. These standards have been developed to ensure an equally high standard of machine safety across the EU. The good news for users of machines in the UK is that these standards incorporate most of the principles of BS and the Code of practice for the safety of machinery , which served British industry well for a long period and, although no longer current, is now available from BSI as a Published Document, PD The main standards and published documents applying to machine safety and machine guarding are shown in the tables below.
Machinery Directive Harmonised Standards are classed as A-type, B-type and C-type standards, so the list below has been divided the same way, with non-harmonised standards and other documents shown at the end.
Other types of machinery, from cranes to sewing machines, also have their own requirements. Today the accepted approach to the design of any machine guarding system is based on risk assessment. Most HSE publications can be downloaded for free, or hard copies can be purchased.
Then, after installation and before placing the machines into production, MSS was contracted to perform safety validation services as required by the standards. During the validation phase of the project, MSS traveled to site to inspect all machine safeguarding and validate the functional safety systems.
This safety validation included all aspects of the safety system, including barrier guards, interlocked barrier guards, light curtains, area scanners, the safety controllers and safety software, safety servo systems, variable frequency safety drives safety VFDs , and pneumatic air systems. After the machine safeguarding design verification, installation, and safety system validation, MSS was pleased to provide the following data in the executive summary of the report.
By helping you implement the project, we kept the safety project on-track. Our validation testing and detailed test reports provide peace of mind, and evidence of due diligence if OSHA pays you a visit. A global OEM needed to automate 30 existing manufacturing lines across 12 plants. Six weeks later, the machine builder delivered a seemingly impressive Collaborative Robot assembly system to the plant.
Engineers quickly completed commissioning and the Collaborative Robot system went into production. As the Collaborative Robot worked in close proximity to the plant associates, troubling questions weighed on the project team…. On-site, we inspected the Collaborative Robot, took measurements, gathered observations and findings, validated safety functions, and spoke with various plant personnel maintenance, production, EHS, engineering, etc.
The final report included Observations, Risk Assessments, and specific corrective actions needed to achieve US and global safety compliance. Examples of our findings and corrective actions include:. With corrective actions complete, we re-inspected the machine and confirmed all safety settings. The customer then duplicated the machines and successfully installed the systems at 12 plants globally, knowing the machines were safe and that global compliance was achieved.
Another success story by MSS…. A US manufacturer was attempting to automate a complex task — assembly of an elastic sheet in a complex frame, then cutting it precisely. This process required 16 people across four US plants, and the manual process simply could not keep up with orders. In addition, due to employee fatigue, quality issues were frequent and senior management demanded a solution.
How to develop a custom robot cell and deliver it in a tight schedule. The manufacturer hired a robotics integrator and a brief engineering study determined that speed and force requirements required a high-performance Industrial Robot not a Cobot. Within 3 months, the robot integrator had the prototype system working beautifully in their shop and was requesting final acceptance of the system.
However, it is almost inevitable that Part 3 will also be required, because this covers the guard-rails that are usually necessary with platforms and walkways.
Subclause 4. Interestingly, a pragmatic approach is adopted, with several exceptions allowed under particular circumstances. However, great care should be taken with ribbed ramps, bearing in mind that subclause 4. Nevertheless, it would be prudent to verify the safety requirements either by calculation or testing. Annex A relates to methods for determining slip resistance and starts by stating that no international standard currently exists.
Annex B lists the significant technical changes between ISO and the previous edition, which will be helpful to readers who have been working on the earlier edition. If guard-rails are being installed alongside platforms or walkways, Part 3 will have to be used in conjunction with Part 2 as well. Another point to note from the definitions is that handrails must be rigid, which excludes the use of ropes, chains or cables. Clause 4 presents the General requirements for stairs, stepladders and guard-rails, including the loadings to be used in strength and deflection calculations when designing these structures.
Clause 5 , Specific requirements applicable to stairs , provides further information for designing stairs. Some leeway is provided for designers, as shown by this example from subclause 5. Clause 6 , Specific requirements applicable to step ladders , provides similar details to those in Clause 5. Clause 7 , Specific requirements applicable to guard-rails , states that guard-rails shall be installed when the height of the possible fall exceeds mm, if the gap between the platform and machine structure exceeds mm or if the protection provided by the structure is not equivalent to a guard-rail.
Subclause 7. However, the same subclause states that the minimum height of the guard-rail shall be mm, so it appears that the former may be a typographical error and the height of the handrail should be greater than or equal to mm. As well as providing requirements for guard-rails on platforms, stairs and stepladders, Clause 7 also gives details for toe plates, self-closing gates and mezzanine gates.
Clause 8 , Verification of safety requirements , gives a choice of testing or calculation. The clause goes on to provide details of how to test guard-rails and the steps of a stair.
For testing stepladders, the reader is referred to EN , Ladders. Requirements, testing, marking.
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