The new fuel-saving RTG crane, featuring a variable-speed diesel alternator system, diminishes fuel consumption significantly by eliminating high-speed idling.Fuel consumption is the critical issue in any yard where hundreds of containers are handled each day. Konecranes has developed the technology to cut down fuel costs of the modern RTG. The objective was to come up with a solution that would allow handling containers with as little fossil fuel as possible, thus reducing with the noise and emissions. Simultaneously, the productivity of RTG should not be compromised. The productivity of fuel-saving RTGs should be equal to those normal RTGs.Initially, the idea was to use as many reasonably priced, previously used components as possible but combine them in a new way. Konecranes analysed that programmable logic controllers can be used to calculate the generator power needed and to regulate the engines running speed. The company put in a lot of effort to develop a unique voltage regulator with its suppliers, which was different from normal ones in that output voltage of the alternator was most linear with the rotation speed of the alternator's axle. When the rotation speed changes, the frequency and voltage changes correspondingly. Instead of a constant voltage, it is variable.Having seen the principle of this voltage regulator in action, Konecranes realised that once they had developed the diesel motor control algorithm, the rest of the project would not be a problem. Volvo Penta, a regular supplier of Konecranes aided in understanding the control of a modern diesel engine.With the conviction that RTG duty cycle is the key to fuel savings, Konecranes has studied the real operation of port RTGs and has established that most of the usage time consists of 0-25 per cent load, with 75-100 per cent of full capacity representing only the marginal part of power spectrum. This shows that high speed idling produces enormous fuel losses, and it demonstrates the need to produce only the amount of energy that is needed at any given time.Konecranes fuel-saving system operates on the principle of calculating the power needed by the PLC and the diesel engine speed is adjusted to be equivalent to the power required. The PLC contains all the intelligence inherent in the system and it has several cutting-edge features. The diesel engine is driven with optimal efficiency at all operating points, which eliminates high-speed idling completely. The DC-bus voltage is controlled by the active supply unit, which functions independently from the speed of the diesel alternator. Full-scale productivity is thus also available with lower diesel alternator speeds. The less speed, the lower the losses, with less fuel consumed and diminished fuel consumption results in lower noise and fume emissions.Konecranes has always been in the forefront of technological development, and the new integrated intelligent fuel-saving system is an important additional functionality that brings added value to RTG customers. The investment in fuel-saving RTG pays for itself very quickly. The initial investment costs might be higher because of its active electronic components involved but the product pays itself within a couple of years, owing to the great savings in fuel costs.DINO Wood PickerMalavika Engineering Works launches DINO wood picker crane, an import substitute for Indian conditions.Malavika Engineering Works, a well-known hydraulic equipment manufacturer in south India with the brand name of DINO announced the launch of their latest product, DINO wood picker, capable of all kinds of wood handling jobs. Specially manufactured for Indian conditions, it is an effective alternative for costly imported timber loading cranes. It comes with specially designed body, attached with high quality imported hydraulic valves. The company has its own in-house designing unit to make their product more effective in the field. The main attraction of DINO wood picker is its price factor; compared to imported timber cranes, its cost is very less at the same time, no compromise on quality. It is equally competent with imported cranes in quality and performance. The company offers one year onsite warranty for the machine, and a world-class customer care too. DINO wood picker comes with different load carrying capacities (1, 2 and 3 tonne) and different mounting style (truck, tractor and floor mounted) according to the customer demands. Malavika Engineering Works comes with 40 years of immense experience in manufacturing and maintenance of heavy machinery.