Schwarze-Robitec Delivers Machines
to Vietnam: Strong, Reliable Booster
Bending Machines for Use in Boiler
and Power Plant Construction
Schwarze-Robitec has delivered two of its booster bending
machines for use in Vietnam’s boiler and power plant industries.
Martech Boiler Co., Ltd., an energy solutions provider, will now
use a CNC 100 DB for the mandrel free bending of thick-walled
boiler tubes, and a FL 2000 for processing welded boiler walls.
The machines, which are part of Schwarze-
Robitec’s Boiler & Power series, are specially
designed for the particular requirements of
boiler and power plant construction. They
guarantee high-precision bending performance
and are designed for years of continuous
operation.
Martech Boiler Co., Ltd., is a company based in Ho
Chi Minh City, Vietnam, which specialises in the
production of boilers and pressure vessels for the
energy industry. Its portfolio of products includes
waste heat boilers and boilers for fluidised bed
combustion. For years, Martech has been using a
CNC 80 DB from Schwarze-Robitec to bend tubes up
to 88.9 mm in diameter. Impressed by the reliability
and durability of the machine, Martech has again put
its trust in Schwarze-Robitec.
Society of Mechanical Engineers standard ASME
B31.1 as well as all other international norms. This
means that various media can be transported in the
tubes in a consistently reliable manner.
Finned walls enable effective heat exchange
State-of-the-art power plant construction would
not be possible without finned walls consisting of
multiple tubes welded together, otherwise known
as membrane tube walls. They ensure effective heat
exchange as part of a huge piping system. As part of
this process, individual tubes are welded together to
form bending membrane walls. They then undergo
bending to align with boiler dimensions before being
installed. To bend such finned walls, Martech uses
the FL 2000 from Schwarze-Robitec. With millimetre
precision, this machine processes entire bending
membrane walls with a through-width of up to
2,000 mm in a single operation. The diameter of the
tubes can go up to 70 mm and the wall thickness up
to 5 mm. In addition, there is increasing demand for
diagonal bending, which is something the FL 2000 is
able to achieve thanks to its horizontal rollers.
Thanks to the new CNC 100 DB from the German
company’s Boiler & Power series, Martech is now able
to bend – without a mandrel – thick-walled tubes up
to 114.3 mm in diameter at a wall thickness of 8 mm.
One particular stand-out feature is the compactly
designed construction unit of the tube boost and
integrated tube clamp element, which safely transfers The extremely powerful machines from the Boiler
the boost force to the tube. This enables, for instance, & Power series are able to overcome the demanding
the mandrel-free cold bending of very small radii up
conditions which often dominate the boiler and
to a radius of 1 x D with minimal reduction of wall
power plant industry. They have been used for many
thickness and optimum ovality. The Schwarze-Robitec decades throughout the world.
method surpasses the tolerance specifications
www.schwarze-robitec.com
for wall thinning and ovality, for example, of the
European standard EN 12952 and the American
.
TUBE NEWS December 2018 7