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May 2016
Roofing, Ceilings, Insulation & Cladding
T
he product is a collaborative ef-
fort between PMSA and ABECE
of Sweden.
The SPS712 has a dual start/stop
function that requires the operator to
use both hands to either start or stop
the machine has enhanced safety
significantly.
This is an example of the attention
to detail that has been brought to the
development of the SPS712 for the
African market, where skill levels are
lowand proactivemaintenance is not
a priority.
In order to ensure maintenance,
as well as keeping themachine clean,
the extrusion head flips upwards. All
working parts are easily repairable
and do not require special tooling to
be removed. The SPS712 utilises an
aluminium palette to shape the tiles.
This semi-automatic extruder can
manufacture up to 5 000 concrete
The SPS712 roof tile extruder was developed specifically for the African
market by PMSA and ABECE of Sweden.
Semi-automatic roof tile extruder
tiles in a nine-hour shift, depending
on the specific plant configuration.
This equates to about ten tiles amin-
ute. The main benefits are that it is
easy to install, operate andmaintain,
which are important considerations
in remote project sites in Africa.
The extruder features aheavy-duty
design that incorporates high-quality
material and components in its man-
ufacture. It has a 1.5 kWmotor power
roller and a 5.5 kW hydraulic power
pack for the pusher movement.
A stand alone depalleter is also
available, as well as ridge and trim
tile manufacturing equipment.
ABECE AreaManager Fredrik Tofte-
mo explains that concrete is fed
from a conveyor into the concrete
hopper above the slipper and roller
unit. Aluminium pallets are placed
manually on the support rails that
guide the pallets through the ex-
truder. A hydraulic cylinder pushes
the pallets through the release oil
spray system and the making head
in order to shape the concrete tile.
Thereafter the automatic knifeunit
cuts and shapes the tile. This knife
unit is kept clean by a water-spray
system. The manufacturing process
only requires three to five labourers,
depending on the level of automation
and the skills level of the staff.
“Combined with the fact that
concrete roof tiles are such an eco-
friendly product, the SPS712 extruder
is the ideal machine for African condi-
tions,” says PMSA Sales and Market-
ing Manager, Quintin Booysen.
■
T
he judges had no hesitation in
awarding the concrete cladding
of No. 1 Silo at Cape Town’s V&A
Waterfront the Aesthetics Commer-
cial Trophy. Besides its striking visual
appeal, which showcases the beauty
of precast concrete construction at
its best, the project also involved
high levels of skilled precast concrete
engineering.
Similarly, the judges were un-
equivocal in awarding the Gouda
Wind Farm concrete tower project
the Technical Excellence Trophy. It
is the first time that a South African
wind farm used precast concrete
segments in the construction of its
towers, which in this instance were
100 m high. Not surprisingly, the
project was also entered into the In-
novation category where it prevailed
as a Commendation Winner.
CMA Executive Director, Frans Min-
naar, said that although this year’s
entry crop was generally of a very
high standard, the judges felt that
none of the entries in the Aesthetic
Residential category stood out suf-
ficiently to merit a trophy award; a
single commendation winner was all
it could muster.
This year’s five trophy winners:
Concrete Units - the Aesthetics Com-
The winners of the CMA Awards for Excellence competition were
announced at a gala dinner function in Johannesburg in April.
CMA Awards for Excellence winners
mercial trophy for casting the precast
concrete panelling for No. 1 Silo at
Cape Town’s V&A Waterfront. Shu-
kuma Bricks – the Community Uplift-
ment trophy for providing concrete
pavers for the paving of gravel roads
in Walmer Township, Port Elizabeth.
Concrete Units – the Technical Excel-
lence trophy for manufacturing 782
precast concrete wind tower seg-
ments for the Gouda Wind Farmproj-
ect in the Western Cape. Bosun – the
Innovation trophy for introducing the
CastleBottomKerb. SmartStone – the
Precast for Life trophy for supplying
Fan Cobble paving blocks for the
Waterfront at Knysna Quays project
in Knysna.
The Aesthetic Commercial com-
mendation winners were: Smart-
StoneMidrand and Bosun, the former
for supplying pavers and coping for
the Thaba Moshate Hotel Casino and
Convention resort in Limpopo, and
the latter for providing drycast pav-
ing blocks for the courtyard of BMW’s
head office refurbishment project
in Midrand. C.E.L. Paving Products
and Hydraform each won a Com-
munity Upliftment commendation.
C.E.L. produced 6 400m² of paving for
surfacing gravel roads in Kassiesbaai/
Arniston in the Western Cape, and
Hydraform supplied concrete block
making machines for the Radway
Green Housing project in the same
province.
The two Technical Excellence com-
mendation winners were Concrete
Units and Aveng Infraset. Concrete
Units won the award for manufactur-
ing precast concrete rock print panels
for the Mouille Point Sea wall Project
in Cape Town and Aveng Infraset for
providing non-standard portal cul-
verts for the Tweefontein Optimisa-
tion project in Mphumalanga.
Concrete Units’ precast concrete
expertise was rewarded a fourth
time, in this instance an Innovation
commendation award for the Gouda
Wind farm towers for which it also
won the Technical Excellence trophy.
The other Innovation commendation
award was won by Rocla for cast-
ing 128 precast concrete cabins for
housing photovoltaic equipment in
the Free State and Northern Cape.
■