This resulted in the following solutions: Quality -- Use of first class and long term suppliers: Liebherr, Sauer Danfoss -- Where possible use of local suppliers, making QC easier -- Proven quality, field-tested components like a dozer engine package -- Use of Liebherr’s global service network Ease of operation -- One control panel, minimum chance for change of settings -- Straightforward design, less parts, less confusion An increasing number of projects use heavy wall pipe.
Powerful -- More powerful but not bigger and only slightly heavier
This results in:
-- Bending test carried out with X80 pipe 914 x 23,4 mm
-- A wide variety of pipe specifications, wall thicknesses,
-- The first project was with X70 pipe 762 x 30,8 mm
coating thicknesses, ovality -- The possibility that one bending machine cannot cover all these specifications.
Health, Safety and Environment -- A safety lever for operators’ platform (CE-certified) -- A beacon during bending operations
During our rental projects, the above resulted in some issues that had a direct effect on the quality of services,
-- Silent: only 75dB(A) at operators platform (Directive 2000/14/EC)
such as: -- Poor availability of complete pipe specifications, with
Fuel saving and cost reduction
pipes often outside standard specifications, resulting in
The machine is equipped with a variable hydraulic pump,
problems with bending sets
load sensing control and hyperbolic power regulation,
-- Older machines working at the limit of their capacity, resulting in frequent breakdowns -- Damage to coating due to variation in coating thickness at a jobsite
ensuring low fuel consumption and low emission. In other words, the engine only delivers power when needed, achieving the maximum in power, fuel and economic efficiency.
-- The use of spiral weld pipe which is cheaper but more difficult to bend because of its easier deformation (buckling), but sometimes even deforms when stored -- The fact that there are fewer and fewer experienced bending operators
For more information, or to get involved with the Novel Construction Initiative, please contact the appropriate work group leader listed below.
-- Confusion about the use of bending mandrels. Planning and Design The above made Maats to decide to engineer a complete new
Criss Shipman (GIE), cshipman@gie.com
bending machine that would solve most of the above issues
Earthworks & Crossings
and would be ready for a further development in the pipe
Paul Andrews(Fluor), paul.I.andrews@Fluor.com
specifications on future projects.
Welding & NDT & Testing Jan Van Der Ent (ApplusRTD), jan.vanderent@applusrtd.com
New machine design criteria:
Future Trends & Innovation
-- A technical lifespan of at least 25 years
Zuhair Haddad (CCC), zuhair@ccc.gr
-- Service and repairs easy, everywhere in the world
Coatings
-- Operation of the machine should be simple
Sean Haberer (ShawCor), shaberer@shawcor.com
-- Powerful: suitable for X100 pipe with a wall thickness of 1”
Environment
-- Safe: assessment of health and safety issues
Sue Sljivic (RSK Group), ssljivic@rsk.co.uk
-- State of the art: use of latest technologies
Logistics
-- Universal: suitable for all available pipe specifications
Bruno Pomare (Spiecapag), bruno.pomare@spiecapag.com
and all conditions, also for -/-40°C.
NUMBER 55 JUNE 2013
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