Mechanical Technology

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38 Mechanical Technology — November 2015
⎪ Products and services ⎪
BMG has extended its range of NTN-SNR
bearing products to include a single point
automatic lubricator, where the grease
is pressurised by a gas generated unit to
provide continuous, reliable, clean and
precise lubrication.
Typical applications for these corro-
sion resistant lubricators are for bearings
and plummer blocks, chains, electric
motors, fans, pumps and conveyors
In the past 24 months, Voith has in-
stalled 37 of its ProTect systems, which
allow for press felt measurements to be
taken safely while a machine is running.
Another 32 systems have been ordered
by various customers in Europe and
overseas.
Measurement of running press fab-
rics is indispensable for efficient paper
production. The condition of the felt is
monitored, providing data from which
conclusions about any irregularities can
be drawn. This means that age-related
wear or any variations in the felt
can be identified reliably during
operation.
Previously such mea-
surements could only be
carried out manually.
For safety reasons, vari-
ous paper manufactur-
ers and governments
have recently started to
prohibit these kinds of
manual measurements.
With ProTect, Voith
has developed a solution to
replace the manual measur-
ing work carried out by service
personnel. It consists of a stand-
alone self-propelled carriage on fixed
crossbeams that can accommodate
conventional manual measuring devices
for safe use outside the felt run.
Effective H2 detection
MSA Africa fixed gas and flame detection
product manager, Robbie Taitz asserts that
new facilities using H2 should be designed
with adequate gas protection measures, while
older facilities should be revisited to ensure that
hazards are minimised.
MSA Africa offers a complete range of gas
detection solutions with sensing technologies to
suit different measuring ranges. The products
are able to provide indications ranging from
extremely small concentrations (1.0 ppm) that
can be swiftly investigated and remedied, right
through to highly dangerous concentrations
(1 000 ppm).
MSA Africa‘s Ultima X gas monitor includes
a multi-sensor configuration that allows for the
use of dual sensing technologies to provide lay-
ers of protection. A patented sensor disconnect-
under-power feature also allows sensors to
be replaced in hazardous areas without area
declassification, while interchangeable smart
sensors eliminate the need for reconfiguration.
The MSA TRIGARD system has a mounting
option and uses push-of-a-button calibration. It
boasts a variety of features including; a sturdy
NEMA 4X design, multiple sensor mounting
option, and a single circuit board to increase
reliability.
In addition, the MSA GasGard XL is housed
in a durable, fire-retardant ABS plastic, and is
able to monitor up to eight remote gas sensors
with the highly accurate wall-mounted GasGard
XL controller.
NTN-SNR’s single point automatic lubricator is simple
to install and provides continuous, reliable, clean and
precise lubrication for bearings.
Single point automatic lubricators
in diverse applications in mining, con-
struction and agricultural equipment,
materials handling, electro-mechanical
engineering, manufacturing, paper plants
and steel works.
The NTN-SNR Ready Booster 125
lubricator ensures less friction, which
means energy savings and extended ser-
vice life of components and equipment.
Other benefits include reduced risk of
contamination and accidents, particularly
in dangerous areas; shorter maintenance
times; improved reliability of industrial
equipment and lower operating costs.
“This automatic lubrication system,
which eliminates the risk of excessive or
inadequate lubrication, ensures the con-
stant and regular lubrication of bearings,
is ideal for use in humid and corrosive
environments, as well as in applications
that require stringent hygiene standards,
including the food industry,” says Rouff
Essop, general manager, bearings divi-
sion, BMG. “These automatic lubricators
– which ensure exactly the correct lubri-
cation, with the correct grease – are eas-
ily integrated into various applications,
without the need to modify installations.
The duration of distribution for 125 cm³
of grease, at a maximum pressure of
5.0 bar, can be simply adjusted from
one to 12 months, via a rotary switch.”
Various greases are available for differ-
ent applications. For example, a general
purpose grease is suitable for industrial
use; heavy duty grease is recommended
for high-load applications in humid envi-
ronments and high-temperature grease is
designed for long term lubrication at high
temperatures, up to peaks of 175 °C.
A synthetic oil is available for high
temperature chains and a multi purpose
grease, which complies with food and
pharmaceutical standards, is used for
bottling machines, dairy equipment and
in food manufacturing.
ProTect ensures safe press felt measurement
ProTect can be mounted even in very
confined spaces. The system features a
battery and integrated water tank, which
means it does not have to be connected
to a power or water supply.
In combination with Voith’s OnV
FeltView measuring system, ProTect
covers the entire spectrum of felt mea-
surement requirements and OnV FeltView
can also be integrated into the OnView
information system.
The Voith ProTect standalone self-propelled
carriage on fixed crossbeams can accommo-
date conventional manual measuring devices
for safe use outside the felt run.