Electrical Connection Autumn 2015

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8 6 E L E C T R I C A L CO N N E C T I O N A U T UMN 2 0 15
WX373 HAMMER
DRILL
Worx
Combining two-speed selection for enhanced control
and a heavy-duty 13mm Jacobs keyless chuck with
safety lock, the brushless WX373 hammer drill from Worx
allows you to get the tough jobs done safely.
The WX373 is designed with 20V Lithium Powershare
battery technology, which brings a longer run time and
higher working efficiency. It also allows battery
sharing across the entire WORX 20V range. The
LED lights allow for better sight in dark areas
and the 20-second LED light delay after trigger
release means that you can double check that
last screw you’ve just drilled in.
M18 FUEL SDS PLUS ROTARY HAMMER
Milwaukee
Milwaukee has added two cordless SDS Plus rotary hammers
powered by one battery platform.
The line-up now includes a lightweight M18 16mm for the compact
segment, a M18 22mm and M18 FUEL 26mm for the medium segment
which makes up the majority of the market and lastly a M18 FUEL
28mm for the most demanding applications in the large segment.
Milwaukee’s POWERSTATE brushless motor technology converts
energy into power more efficiently and has no wearable parts, which
extends the life of the motor, reduces motor friction and cools more
rapidly to deliver years of maintenance-free performance.
C18DBL 125MM
CIRCULAR SAW
Hitachi
The new 18V slide brushless 125mm
circular saw from Hitachi proves
that bigger is not always better. The
C18DBL achieves a 47mm depth of
cut and will also be able to make over
500 cuts from a single charge with a
BSL1850 18V 5.0Ah li-ion battery.
Another feature of the C18DBL is
a rotation speed changeover function
that allows dual mode settings.
The silent mode setting reduces the
max motor RPM enabling efficient
work with less noise and when the
load increases during silent mode,
the tool will automatically switch
over to power mode and revert
back to silent mode when the load
decreases. In power mode, no change
is made to silent mode even when
the load decreases.
“The EC-TEC motor is completely
controlled by electronics, which
sequentially energise windings within
the motor to induce rotation – no
mechanical contact is required, so the
motor is free to spin without loss of
power/efficiency due to friction.
“In fact, the only wearing parts in the
motor are the bearings.”
Also believing in brushless motor
technology is Bosch.
“Aside from power tools, brushless
motor technology is already used in
ceiling fans, model helicopters and
airplanes, and high-end professional
hairdryers,” a spokesperson for Bosch
Power Tools says.
The Bosch CORE brushless motor
is electronically commutated, which
means it is more power efficient and
resilient to shocks. It also means
there is no friction loss from brushes
rubbing against a commutator, so it
does not wear out over time with use.
“A brushless motor is essentially
a permanent-magnet motor turned
inside-out that operates with a
rotating magnet within electronically
switched coils. This means there are
no brushes, windings or electrical
connections.
“The higher efficiency of the motors
makes for greater power and longer
runtime than a conventional motor for
the same time.”