Australasian Mine Safety

Australasian Mine Safety Journal Issue 25 Winter 2015

Australasian Mine Safety

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25 www.amsj.com.au / Winter 2015 / AUST R A L AS I A N M I N E SA F E T Y J O U R N A L BUSINESS FOCUS ON STORAGE - STABILISING SYSTEMS T raditionally, cribbing and blocking of equipment and machines in both workshops and on-site maintenance has been done using timber blocks. However, users need be wary of the inherent dangers of this, as timber blocks can suffer permanent damage without showing any visible signs. Consider for example: an application where a piece of wood being used to support a machine is overloaded; its internal fibres damaged. Because the strength of a block relies on the wood fibres being completely connected one to another, in this damaged example load-bearing effectiveness is now compromised. Further, use of such a timber block that shows no visible sign of damage, yet is internally unsound, yields a potentially unsafe work environment. Another limitation of timber blocks is that no two pieces will have the same load-bearing capacity. Furthermore, as a timber block ages, uncertainty regarding its load-bearing capacity increases. these structural uncertainties, combined with: questionable absorbency, risk of splinters, cracking and possible failure under load; it is clear that the time has come for modern, safer alternatives to timber be investigated. Dura Crib cribbing and blocking products are engineered as a fit-for-purpose tool for supporting machinery and equipment when carrying out assembly, repairs and maintenance tasks. this lightweight, splinter-free, non-absorbent and environmentally sustainable product range is manufactured from 100% recycled, high-density polyethylene (HDPE) to a strict formula and following quality control processes. Working load limits of the Dura Crib blocks range between 30.6 to 60.8 kg/cm2 (3.0 to 6.0 Mpa) at 25ºC, tested in accordance with AS1170 and AS 2498. Maximum load bearing capacities of individual blocks range from 9,300 kg to 110,000 kg. Aggressive pyramid surfaces ensure positive locking of the blocks in stacks and reduce the likelihood of slippage. Unlike traditional timber, Dura Crib blocks are available in both ultra-strength black and high-vis yellow and are resistant to fuels, oils, organic substances and most commonly used industrial chemicals. All Dura Crib products are backed by a 50 year warranty against splitting, rot, fluid absorption, termites and mould. the innovative Dura Crib cribbing blocks have already been proven under some of the toughest safety regimes. Existing applications may be found in industries such as mining, resources, construction and building, and they have been successfully used in rescue and recovery, materials handling, industrial maintenance and safety and rail transport. Timber section Illustration showing an artist impression of potential internal fibre damage unable to be identified from a visual inspection. Hidden Dangers of Cribbing & Blocking Dunnage and blocks traditionally made of timber have been used for blocking and cribbing equipment and machines in workshops and maintenance applications for many years. For further information please contact Cribbing and Matting Co. email: info@cribandmatco.com.au or Ph: +61 2 9674 7428. INTRODUCING • Optimise safety when stabilising heavy loads • Working load limit and maximum block capacities • Tested under the guidance of AS1170.0.2002 and AS2498.3.1998 • 100% Recycled high density polyethylene (HDPE) construction for durability • Unmatched strength – stronger than most timbers • Stacks can be customised to irregular shapes • Available in hi visibility yellow or ultra strength black • Stable, predictable and high load bearing • Light weight • Resistant to fuel, oil and most commonly used chemicals • 50 year warranty against splitting, rotting, absorption, termites & mould • Will not splinter THE SAFER ALTERNATIVE Address : Unit 9, 12 Abbott Rd Seven Hills, NSW 2147 Phone : 02 9674 7428 Fax : 02 9674 2724 Email : info@cribandmatco.com.au Web Site : www.cribandmatco.com.au ARE YOU LIFTING AND SUPPORTING HEAVY EQUIPMENT USING THESE? ARE YOU LIFTING AND SUPPORTING HEAVY EQUIPMENT USING THESE?

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