Transcript Lattice-Boom Crawlers Vs Telescopic Mobile Cranes

Lattice-Boom Crawlers
Vs
Telescopic Mobile Cranes
Srini Kadaba
Kanoo Machinery
Vice Chairman
Lifting Equipment Engineering Chapter
Saudi Council of Engineers
Conventional Applications
of Lattice-Boom Crawlers
Heavy Cyclic duty applications
Pipe Coating Terminal Dammam
Conventional Applications of
Telescopic Boom Cranes
A Rough Terrain Crane working at Haradh Hydrogas Gas Processing Project
Steel Work Erection - Main Gas Plant at Haradh
Using an Auxiliary Hoist and Swingaway for Pipe Rack Erection at Haradh
An All Terrain Crane working at a Gas Pipe Crossing, near Haradh
The Resurgence of Crawler Cranes
• Better deliveries for Lattice Boom Cranes in relation to
Hydraulic Telescopic Boom Cranes
• Technological advances such as retracting undercarriages,
has greatly increased transportability of these Cranes
• Quick set up time. Most manufacturers now claim that some
of their cranes, even as large as 250-300 Tonnes can be set up
in 3 to 4 hours
• Growth in markets. One example is in the wind energy
sector. Crawler Cranes are better suited with higher capacity at
greater heights & fixed boom lengths. Also suited to operate in
Poor underfoot conditions.
Sometimes Crawler cranes even have difficulty in poor underfoot conditions !!
Boom Comparison
The drive to make Booms of Telescopic Cranes Lighter & Longer
CAPACITY
ENHANCEMENT
ADVANCEMENTS IN
MATERIALS & TECHNOLOGY
HELP IN ACIEVING THIS
WEIGHT OF
LOAD +
WEIGHT OF BOOM
ETC. OVER
FULCRUM
WEIGHT OF MACHINE
FULCRUM
Extending the Boom
Extending the Boom
First, Retract the
Tele Cyl Pins
Extending the Telescope to T4
Extend the Telescope
Cylinder to T4
Telescope in Motion
Telescope in Motion
Extending Tele Pins into T4
Retract Boom Pins
Retracting the Boom Pins
T4 Section in Motion
T4 Section in Position
Extending the T4 Boom Pins
Retracting the Telescope Pins
Retracting the Telescope Pins
Telescope in Motion
Extend Telescope Pins in T3
Retract Boom Pins
Retract Boom Pins
T3 Section in Motion
T3 Section in Motion
Extend T3 Section Pins
Retract Telescope Pins
Retract Telescope Pins
Telescope in Motion
Telescope in Motion
Extend Telescope Pins
Retract Boom Pins
Retract Boom Pins
T2 Section in Motion
Extending the T2 Section
Extending the Boom Pins
Retracting the Telescope Pins
Telescope in Motion
Retracting Boom Pins
T1 in Motion
T1 in Motion
Extending Boom Pins
The case for Lattice Boom Cranes
• Complexity in the extension mechanism of boom
sections makes it a nightmare to access and then fix
problems in a hydraulic telescopic boom crane
• Technological advances (onboard computers
control everything in All Terrain Cranes from
Engines, Transmissions & Crane functions) make it a
challenge to find, train & retain suitable technicians
to maintain and repair these type of cranes
• More parts in a hydraulic mobile crane leads to the
inevitable problem of more things to go wrong and
also the cost of replacement of wear & tear items,
such as seals & wear pads results in higher
operating expenses
The case for Lattice Boom Cranes
• Wear & tear on suspension system & tires of All
Terrain Crane. Much cheaper to transport a Crawler
Crane on a low bed trailer. (Let’s not forget the
current long lead times for All Terrain Crane tires)
• Versatility. Lattice Boom Cranes have superior pick
& carry duties.
Fixed Length Boom Cranes
Steam Driven Pick & Carry Crane
1874
Innovative Pipe Layer
Award winning Design - 2007
Thank You
Srini Kadaba
Kanoo Machinery
Vice Chairman
Lifting Equipment Engineering Chapter
Saudi Council of Engineers