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health & safety safety systems l


Safe materials handling in hazardous environments


J D Neuhaus has a strong reputation for the supply of safe, reliable, low- maintenance handling equipment, including cranes, hoists and winches, for chemical and other industries subject to hazardous environments. The major safety factor of the JDN products is that the equipment is operated by compressed air rather than electric power. This ensures a high degree of explosion-proofness when handling hazardous chemicals or when working in otherwise dangerous environments or atmospheres. Lifting equipment is 100% duty cycle rated, thus eliminating downtime, and can be remotely controlled using pendant cable controllers, or wireless hand-held radio operated units. Equipment safety ratings for use in potentially explosive conditions are Ex II 2 GD IIA T4(X) / II 3 GD IIB T4(X). Increased spark protection, involving a galvanised copper plated finish for the hoist bottom block and load hook assembly, can be supplied to achieve an Ex II 2 GD IIB T4(X) rating. Increased sparking protection for


operation in explosions group IIC, covers the supply of bronze running wheels, travelling gears and the hand gear mechanisms of trolleys for a rating of Ex II 2 GD IIC T4(X).


The JDN general duty mini series air hoists, with lift capacities from 125 to 1,000kg, are rated Ex II 3 GD IIA T4(X). All units, including the larger capacity JDN handling products with lift capacities up to 115 tonnes, feature sensitive, infinitely variable speed control for precise load positioning, with overload protection as standard. They are also insensitive to dust, humidity, fumes and other generally poor working conditions and can operate in a temperature range of -20°C to 70°C.


The products provide general lifting or load transfer operations within the chemical and a wide range of general industries. Special purpose hoists for big bag handling or twin parallel hoist units with synchronised lifting can also be supplied, together with low-headroom hoists where limited space is available. www.jdneuhaus.co.uk


Mitsubishi slashes ‘sway delay’


Mitsubishi Forklift Trucks has addressed the issue of ‘sway delay’ with a remarkable innovation which raises picking productivity by some 5.8% in typical high level order picking applications.


The ‘active sway control’ system automatically works out and delivers the correct adjustment necessary to counteract the mast’s sway – so reducing the length of time an operator must wait between picks for the swaying to stop.


This software-driven feature cuts sway delay by 7.5 seconds per pick, on average, when operating at heights between 5,100 and 10,000mm – saving up to 20 minutes over a typical shift. As well as boosting output, the system gives an enhanced sense of control over acceleration and braking. The operator’s compartment remains steady, so drivers can fully focus on picking, while minimising vibrations within


14 ShD May 2011 www.PressOnShD.com


the cabin reduces the risk of driver fatigue.


The first trucks to benefit from this revolutionary development will be the manufacturer’s OPBH10N series of high level order pickers, which reach market-leading heights of up to 11.5m. The unique design of these high-spec 1.0 tonne models has focused on allowing operators to work comfortably and pick quickly from the safe environment of the cabin.


Active sway control will be fitted as standard to all OPBH10N series models with a lift height of 5.1m or more. It has been launched alongside a host of new optional features, including an order picking cage and two new automatic safety modifications. Wire guidance and end-of-aisle braking options have been introduced for warehouse applications where visibility at intersections is an issue. www.mitforklift.com


Safe vertical movement


Energy Chain expert, igus UKhas launched Guidelok Slimline (SL), a system designed to safely guide cables at heights up to 80 metres.


Guidelok SL is designed for vertical Energy Chain applications, such as those found on storage-and-retrieval units in high-bay warehouses, as well as elevators and material-handling equipment. Compact and easy to install, even when being retrofitted into an existing system, Guidelok SL allows safe energy and data supply in extreme environments, including warehouses, deep-freeze storage facilities, crane


systems and power stations. Vertical Energy Chain applications are reaching higher heights, and faster speeds and accelerations than ever before. In such applications, the Energy Chain is typically guided vertically in an enclosed trough system to ensure that it does not swing out of control, thus preventing damage to the Energy Chain or cabling. The innovative design of the igus Guidelok SL locks the Energy Chain into position and is easier to maintain, since the need for a continuous, enclosed trough is eliminated. Instead the Energy Chain travels freely and safely between small sections of easy-to- install steel trough.


The Guidelok SL features two large spring-loaded locks that are pushed back as the radius of the Energy Chain passes between them, moving back into position where they grip the hanging length securely in place. This not only provides operational safety, but also reduces noise due to the smooth, controlled motion. Several


manufacturers of storage-and-retrieval equipment for high-bay warehouses have already implemented Guidelok SL successfully while realising cost savings of almost 80%.


www.igus.co.uk


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