The GR300EX (also known as GR350XL in North American markets) is one of the GR series rough terrain crane developed by Tadano for international markets in 2011.
*Crane Specifications, Load Charts, and Crane Manuals are for reference only. Contact the crane manufacturer for manuals to operate the crane properly.
The crane is rated 30 tonnes at 3 metres and comes with 31.0 metres, 4-section main boom. The main boom is designed with a round hexagonal box boom. The 4-section operates on a partially synchronised boom system that consists of a double-acting telescoping cylinder, extension cables and retraction cable.
In addition, the 30-tonne rough terrain crane can be equipped with an optional box-type top section telescope from lattice-type base jib section of length 7.2 / 12.8 metres, giving it a maximum lifting height of 44.0 metres. The jib can be offset at 5, 25, 45 degrees.
The crane is powered by a 4-cycle, turbocharged and after-cooled 6-cylinder inline, direct injection water-cooled Cummins QSB 6.7 (also available in EUROMOT 3b (Europe specs)) that has a maximum output of 160 kW at 2,500 rpm and maximum torque of 843 Nm at 1,600 rpm.
Crane Management Through Tadano’s HELLO-NET
Tadano has incorporated their own management system on the new GR series which allows crane owners to manage their Tadano’s fleet via the internet easily. The system provides a day-to-day work history that includes operational status, mileage and remaining fuel. It can be also used to determine the location of the crane based on either the location where cranes PTO is activated (more than an hour) or the final location from which GPS received on the given day. Lastly, it can also help to provide maintenance information for periodical parts replacement and inspection scheduling. (This function is currently available in selective countries)
Check out Tadano’s HELLO-NET promotion video here.
Tadano has designed the crane to reduce the impact on environmental by substantially reducing fuel consumption and CO2 emission.
Fuel Monitoring System – The AML screen has been integrated for monitoring of fuel consumption which constantly displays fuel consuming during the period of crane operation, standby and travelling. These data can be displayed as fuel consumption history to use for controlling crane operating condition.
Based on a study done by Tadano, the results show that approximately only 40% of the time the crane was in operating mode while 60% it was in a non-operating mode (in a state of standby) and thus two functional devices have been developed to reduce fuel consumption.
Eco Mode System – It helps to control the maximum engine speed during crane operation. There is two mode – Mode 1 and Mode 2 decrease CO2 emissions and fuel consumption to a maximum of 22% and 30% respectively. In addition, it also helps to reduce the noise level when the crane is in operating mode.
Positive Control System – The system effectively control the quantity of the hydraulic pump discharge at the time of crane operation in response to the amount of movement applied by the operating lever. By keeping the hydraulic pump discharge to a minimum, it helps to reduce up to a maximum of 20% on the CO2 emissions and fuel consumption.
Control of Asymmetric Extension Width Of Outriggers
One of the main features of Tadano’s new AML-C is when the crane is operating with asymmetric outriggers extended, the system automatically detects the extension width of outriggers at all four points and define the maximum possible working condition for each area. When the boom slew from a direction where outriggers are a full extension to an area which outriggers are intermediately extended, the AML-C automatically detects the motion and display the maximum allowable capacity and bring the slew to a slow stop before reaching its limits of the allowed capacity. This helps to provide additional safety to the operation while minimising operating risks when the operator is not aware.
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