Capital Equipment News

CAPITAL EQUIPMENT NEWS

MARCH 2016

LIFTING

emag’s newly-launched V-Type

crane girder can easily manage

more than 500 000 load changes

– over double the service life of a con-

ventional box-section girder – making it

a game changer in the local material han-

dling sector.

Demag Senior Manager Sales & Marketing

Richard Roughley explains that Demag’s

V-Type girder, which was launched in early

2016, delivers safety and impressive load

handling rates. “Regardless of the mod-

el type selected – the V-Type girder can

be easily adapted to any building shape,

and is the ideal solution both for existing

buildings, as well as for new construction

projects.”

The following Demag V-Type girders are

available;

• Type 1: The ends of the standard crane

girder slope at a 45° angle. The bottom

edge of the girder is at the same level

as the crane runway, offering sufficient

space for loads such as pipes.

• Type 2: On the compact version, the

bottom edge of the V-Type crane is

significantly lower than the crane runway.

This variant is particularly suitable for

projects that offer limited space.

• Type 4: The lower edge of the slightly

raised crane girder is located higher

than the crane runway, which offers a

gain in lifting height, making it suited to

applications with considerable space.

• Type 5: The girder is significantly raised.

Its lower edge is located above the crane

runway, which provides for a large range

of lifting heights.

Type 6: A combination of Types 1 and 2. It

can be adapted to suit the available space,

since the dimensions above and below the

crane rail can be freely selected. The bot-

tom edge of the crane girder is below the

level of the crane runway.

Built with safety in mind, the V-Type gird-

er allows 30 percent more light to pass

through, enabling personnel to better see

their surroundings, while brightening the

workspace. This improved view ultimate-

ly results in a safer and more attractive

working environment. The V-Type girder

also has a shorter time cycle, helping to

increase productivity and overall output. It

boasts several lifting points for safer instal-

lation of the load and has more clamping

and attachment points for lamps.

What’s more, the tapered diaphragm joints

also replace the solid box-section design

of conventional cranes. “Tapered dia-

phragm joints accommodate pressure and

tensile forces more effectively to reduce

resonant frequency by 30 percent. On

average, the V-Type crane is 17 percent

lighter than comparable cranes that have

box-section girders. This not only reduces

the forces transmitted to the existing sup-

port superstructure and provides archi-

tects with greater freedom when planning

new building layouts, but also improves

the relative deadweight-to-load-capacity

ratio,” adds Roughley.

The V-Type girder’s energy chain is per-

fectly matched to the given V-Type crane

variant, and is tailored to meet the specific

requirements of indoor and outdoor appli-

cations, as well as any payload movements.

The energy chain provides improved work-

ing clearance below the crane, thereby

enabling available space to be used more

effectively. It also eliminates the need for

many standard components that often re-

sult in more maintenance and higher sus-

ceptibility to repairs.

The V-Type girder features bolted connec-

tions for gentler loads on the entire crane

system, including the crane runway. Con-

sequently, maintenance costs and require-

ments are reduced to a minimum. Roughley

indicates that absolutely parallel alignment

of the machined connecting surfaces

forms the basis for secure connections

with high-tensile bolts. “The machined

and bolted connections and matching

contact surfaces provide optimum align-

ment of the components, minimising the

rapid wear of travel wheels, the crane run-

way and the rails.”

The V-Type girder was manufactured using

eco-friendly processes, in an effort to re-

duce Demag’s footprint and to increase en-

vironmental sustainability. “Our eco-friend-

ly utilisation of resources is reflected by the

use of less material, reduced drive output

requirements, blast cleaning of metal parts

with dry ice and the use of water-based

paints. This manufacturing process ulti-

mately results in greener building practices

further down the supply chain too,” Rough-

ley concludes.

NEW-GENERATION CRANE GIRDER

revolutionises load handling in SA