Electricity + Control November 2015

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Diversified strategy delivers value
At its recent open day, Efficient Engineering’s managing director, Graham Hartley, said
that withstanding plunging commodity prices and resulting slowing demand, the com-
pany continues to be part of the solution within the steel industry which plays a critical
role in mineral beneficiation and is a key enabler of every part of the economy.The top
five steel consuming industries include the automotive, mining, construction, energy,
and infrastructure sectors and jointly contribute 15% of the total of South Africa’s GDP
and employ more than eight million people.
Through developing their own intellectual property in the areas of custom engineer-
ing mining solutions, pressure vessels and modular solutions, Efficient Engineering
continues to diversify its business even further. The company has gone from purely
mechanical design and manufacture, to including electrical design, and full fit out and
testing of modular power control, electro houses and generator sets. Efficient Power,
which was launched 18 months ago, has since turned over more than R100 M.
“We offer first to market, tailor made solutions to our clients through the expertise
of our management team which has more than 200 years’ cumulative experience, in
harnessing contemporary machinery and industry leading manufacturing processes.
“This has led to our robust growth and has seen us evolve from a respected family
business to becoming the preferred supplier for numerous blue chip original equipment
manufacturers in the local and international mining, material handling, oil and gas,
satellite communication and radio astronomy, petrochemical as well as engineering
industries. Further, we continue to add to our diverse portfolio through acquisitions
such as that of Trotech, a division recently gained through the business rescue process.”
Trotech, now known as EfficientTrotech, offers specialist services in the field of engi-
neering, design, manufacture and installation of bulk storage tanks, pressure vessels,
heat exchangers, reactors, air receivers and fired heaters to the petrochemical, mining
and minerals industry, as well as to the pulp and paper sectors. It is an exciting addi-
tion to Efficient Engineering’s site which currently boasts a total manufacturing surface
area of 21 600 m2, fully equipped to undertake any engineering job, regardless of its
size or complexity.
Enquiries:Visit
Flexible servo drive system
for demanding applications
Siemens has expanded its extensive drive port-
folio for servo applications to include the Simot-
ics S-1FG1 servo geared motor that is optimally
harmonised with the Sinamics S120 converter
system.The complete integration of this drive
system intoTotally IntegratedAutomation (TIA)
makes configuration and commissioning easy.
PrefabricatedMotion Connect signal and power
cables offer an easy and reliable method of con-
necting the components.The components have
electronic rating plates, and the motors are
connected via the Drive-Cliq system interface so
that the system can be brought into operation
quickly.This servo drive system from Siemens
is suitable for use in a multitude of applications,
such as printing and packaging machines, stor-
age and retrieval machines, conveyor systems
and dosing pumps.
The highlights of the compact Simotics
S-1FG1 servo geared motor are its high effi-
ciency and low torsional backlash for precise,
dynamic motion sequences. The Simotics
S-1FG1 is available in the following versions:
helical, parallel shaft, bevel and helical worm
gearboxes – and with up to 25 transmission
ratios, depending on the type of gear and size.
The helical gearing of the gear wheels makes
the gearboxes run very quietly, thereby reduc-
ing the generation of noise.The small diameter
of the plug-on pinion inserted into the motor
shaft enables the first gear stage to have a high
transmission ratio. This in turn means that in
some cases a two-stage gearbox can be used
instead of a three-stage one.
On account of its highly integrated functional-
ity and scalable number of axes, the Sinamics
S120 converter system is suitable for use in a
multitude of demanding Motion Control ap-
plications.
Enquiries: Keshin Govender.
Email
ROUND UP DRIVES, MOTORS + SWITCHGEAR
Electricity+Control November ‘15 12