Ac300-6 Load Chart

[Hilary Laite]

TheDemag AC 300-6 is an advanced all-terrain crane, boasting a 300-tonne capacity and a significantly extended 80-meter main boom, distinguishing it from its predecessor, the AC300/6, which had a 64-meter boom. Engineered for complex, high-reach tasks such as tower crane erection, the AC 300-6 delivers exceptional power and precision, ensuring superior performance in demanding lifting operations.

In addition, Demag AC300/6 is the smallest in is Demag range to have a luffing jib configuration, with a maximum system length to 118m. It was designed to have the same luffing jib rigging system as the larger AC350/6 and AC1000/9.

Another similarity to the AC1000/9, it uses the single-engine concept. This includes the start-stop system to minimize idling time, improving fuel consumption and reduce the number of engine hours for better resale value.

Apart from that, one of the greatest advantages will be the reduction in spare parts inventory for some of the existing Demag crane owners. The new 300-tonne mobile crane shares the same parts with Demag five axles family. Furthermore, the 21 m double folding main boom extension from the five-axle family is compatible with the new Demag AC300/6, hence improving cost savings for owners with existing Demag Cranes.

The carrier is 3m wide and 15.3m long. Axle load limits can be met from less than 12 tonnes up to 16 tonnes. An extra payload capacity of 800 kg is also available for carrying lifting accessories on board.

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The Demag AC 300-6 all terrain crane combines long reach with a strong load chart to give operators the perfect fit for efficient work at height or on reach. The 80 m (262.5 ft) main boom can perform jobs at heights up to 78 m (255 ft) or 74 m (242 ft) radius without rigging a jib. It is ideal for tower crane erection, with a class leading lifting capacity of 15 t (16.5 US ton) on fully telescoped 80 m main boom. Also, the Demag AC 300-6 is the smallest in the Demag range that can be outfitted with a luffing jib for superior reach and fly-over capabilities, bringing the maximum system length to 118 m (387 ft). The well proven luffing jib rigging system is the same as on the AC 350-6 and AC 1000-9 cranes and provides safe and quick rigging.

The Demag AC 300-6 helps maintain a lower stock of spare parts because it uses a high number of interchangeable parts with the Demag 5-axle family all terrain cranes. Furthermore the 21m (68.9 ft) double folding main boom extension of the 5 axle Demag cranes is compatible with the AC 300-6.

The compact design of the Demag AC 300-6 all terrain crane features a carrier length of 15.3 m (50.1 ft) and a width of 3 m (9.8 ft). The crane is easy to position on the jobsite, thanks to its active all-wheel steering that allows excellent maneuverability in tight spaces.

On the road, the Demag AC 300-6 crane meets axle load limits from below 12 t (13.2 US tons) up to 16 t (17.6 US tons) and can travel up to 85 km/h (53 mph). It also has 800 kg (1764 lbs) of extra payload capacity for carrying extra lifting accessories. It includes an axle load monitor, displayed on the dashboard, to help customers drive within the road-legal weight. This model, like all Demag cranes in this product family, can be configured to comply with the variable axle weight limits in most states of North America and many other countries by connecting different types of boom dollies or removing the boom.

Terex Cranes has launched the latest version of its six-axle Demag AC 300-6 all-terrain crane as the first crane of the 300t-class in the Demag range equipped with a luffing jib. With an 80m main boom, the Demag AC 300-6 all-terrain crane is able to perform jobs at heights up to 78m or at a radius of 74m radius without rigging a jib, and is ideal for tower crane erection.

The system allows a crane to lift beyond the standard 360 load charts, and therefore perform jobs usually reserved for larger machines. Demag AC 300-6 helps maintain a lower stock of spare parts by using a high number of interchangeable parts with the Demag five-axle family all terrain cranes.

The compact design of the Demag AC 300-6 all-terrain crane has a carrier length of 15.3m and width of 3m, making it easier to transport and subsequently position on the jobsite, aided by active all-wheel steering for manoeuvrability in tight spaces.

verall, the latest Demag AC 300-6 enhances productivity by helping to reduce operating and transport costs compared to similar models in its class, while delivering the strength, reach and versatility.

Terex Cranes also recently launched an upgrade to its Boom Booster kit for the Demag CC 3800-1 lattice boom crawler crane that increases the maximum system length to 183m and increases lift capacities by up to 30%.

QWEST Crane Hire is a privately-owned crane company that in just over two years has grown its fleet to include 25 cranes, ranging from 7t City Cranes up to the recent addition of the AC 300-6, including the only 40t Franna within the Central Queensland market. Qwest currently operates from three depots in Rockhampton, Gladstone and Emerald with a fourth depot on the horizon very shortly.

Relocating to Queensland from Western Australia after the sale of his previous crane company HAGO Crane & Machinery Hire, French believed there was an opportunity to enter the crane industry again and proceeded by purchasing a local crane hire company in Yeppoon in 2017. Since then, the operation has expanded rapidly into Rockhampton, and finally Emerald in the latter part of 2018.

Qwest invested in a new six axle Tadano Demag AC 300-6 all-terrain crane. Boasting a 300t classification, with features such as an 80m main boom, this is the first crane of its size in the Tadano Demag range equipped with a luffing jib. This new 6-axle all terrain crane delivers strength, reach and versatility needed for accomplishing the most demanding jobs at lower operational and transporting costs than similar models in its class.

The AC 300-6 combines long reach with a strong load chart to give operators the perfect fit for efficient work at height or on reach. The 80m main boom can perform jobs at heights up to 78m or 74m without rigging a jib. It is ideal for Drag Line work, with a class leading lifting capacity of 15t on fully telescoped 80m main boom. Also, the Demag AC 300-6 is the smallest in the Demag range that can be outfitted with a luffing jib for superior reach and fly-over capabilities, bringing the maximum system length to 118m. The well proven luffing jib rigging system is the same as on the AC 350-6 and AC 1000-9 cranes and provides safe and quick rigging.

The compact design of the Demag AC 300-6 all terrain crane features a carrier length of 15.3m and a width of 3m. The crane is easy to position on the job site, thanks to its active all-wheel steering that allows excellent manoeuvrability in tight spaces.

For example:

Do you want to know how much power the AC300 consumes off the grid when you charge an empty B300 battery off the grid power?

Do you want to know how much power the AC300 consumes from the battery when it is idle, with AC output on, disconnected from utility power, no load attached? (Parasitic power drain)

etc. etc.

Thanks for sharing. One missing information in the chart is: it is the per hour consumption.

In addition: are there any informnation about idle consumption if PV input is enabled but there is no input load from PV (e.g. during night)

I have an AC300 with 2 B300 batteries. I let it run with AC out turned on but no load for 24 hours with two different watt hour meters on the AC grid input. Both meters said it used 1.6 kwh of grid power. So 1600 watthours / 24 hours = 66.7 watts idle consumption. I wish the above chart was correct, but that is not what I am experiencing.

I used a FRITZ!DECT 200 for measuring. In Standard UPS Mode the AC500 run the most of the time on battery (why? battery durability at hundreds of load cycles a day vs. PV usage), except during charging when the battery drops below 100%. The measurement results given from the battery are identical (AC On: 56.5V (0x5C) x 1.8A(0x5D) = 101.7W). The results in PV Priority UPS mode are identical.

I am talking about total consumption to keep the AC300 on in PV priority or UPS mode. If you are saying the chart above does not include charging losses I can see that. In real world use you have to consider the total power consumed from operation, that number still stands at 67 watt / hour.

The number of four and five axle all terrains on the market has steadily increased in recent years to the point where manufacturers now offer several models and at least one is into double figures. Six axle models is also a growth sector.

To the uninitiated, the huge choice of four and five axle machines on the market is bewildering. Manitowoc has 10, Liebherr has eight and Terex Demag offers six. That is not to mention the significant number available from other manufacturers.

According to Neil Hollingshead, global product manager for all terrain cranes and rough terrain cranes at Manitowoc, this part of the all terrain sector is so busy because customers have different road-going requirements. "It also driven by customer business; if they are in the taxi business maybe they don't want separate transport of the counterweight, but if they are doing heavy lifts and longer-term jobs, then it will be different."

For example, the Grove GMK5095 is rated at 100 tonnes capacity but was given the 5095 model number to differentiate it from the GMK5100, which was a market leader. The difference may be small, but it is crucial, says Hollingshead. The former is a very lightweight crane that consists of a four-axle GMK4100 superstructure, mounted on a five-axle carrier, but it gives you more capacity to carry additional equipment," explains Hollingshead.

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