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We are able to supply to you, at short notice, a selection of single-phase (240
volt) and three-phase (415 volt) electric chain hoists. Our preferred manufacturer
is GIS AG, of Switzerland. Sounds expensive you might think? Not at all! GIS serially
manufacture tens of thousands of hoists a year and export to every continent. We
enjoy their economy-of-scale and decades of representation in Australia.
GIS manufacture a diverse range of hoists, each unit readily adjusted to suit OEM
variants and support types. The range includes hoists with capacities as small as
40 kg to a massive 5,000 kg. Lift heights are selected to match your application,
reaching a credible 50 metres with ease.
To support the product you buy from us, VITAL MACHINES stock an excellent range
of GIS spare parts in Brisbane. The product is imported in bulk and our deliveries
are second to none!
Applications
Chain Hoists are lightweight, compact, low-cost lifting devices. They are suitable
for nearly all lifting applications, indoor or outdoor, where mains power is available.
Hoists can be 'married' to manual (push/pull) or motorized trolleys, or left suspended
from rigid connections (like girder clamps).
They are the most common lifting device for monorails and jib cranes and represent
better purchasing value than an air hoist. They are superior products to manual
chain blocks - their additional cost is readily recovered in most cases.
Other common applications include underslung and overhead cranes, dumb waiters,
and theatre hoists (chain climbers). Food grade hoists are available with epoxy
coated bodies and stainless steel load chain and hooks.
All GIS control pendants are low voltage (<50 volts). This advanced safety feature
allows the hoist to be used in wet areas.
As GIS hoists can be operated with their axes in any position, they can be utilised
as pulling and transfer devices. This feature also permits extreme low-headroom
assemblies, where the lifting hook is offset to the body of the hoist.
Technical
There are currently three body sizes and 5 combinations of chain and drive assemblies.
This gives a vast array of Rated Capacities (formally distinguished as 'safe working
loads' or 'SWL') and appropriate duty ratings to select from.
Duty is a critical aspect that cannot be overlooked in any hoist selection. All
hoists are designed for a ten year life cycle. Beyond this they require a full mechanical
strip, assessment, and appropriate rebuild.
The ten year life must be addressed when assessing a specific lifting application.
Hoist models need to be selected via a matrix, of rated capacity and duty rating.
We can make a casual assessment for you, or you can address this in detail in accordance
with an appropriate international standard (e.g. SAA code AS1418). Pricing increments
with the higher ratings, so attention to this detail is worthwhile. You can download
the GIS matrix from our download area.
GIS are currently introducing the newly developed 'GCH' chain hoist. The release
of the 'GCH' hoist is progressive, with the 'EM25' and 'EM50' models now replaced
with the 'GCH250' and 'GCH500' respectively. The new 'GCH' revives the rock-solid
functionality of the 'EM' series - whilst adding a number of new innovative features.
Upper and lower travel limits are now geared, with no external mechanisms. In a
world first, overload protection is performed via a revolutionary clutch device;
an integral component of the rotor shaft. Adjustment of the clutch is performed
without the need for special tools or disassembly of components.
Other improvements include: the addition of body fins for improved cooling, even
better headroom, and an emergency stop (mains contactor) as standard.
Contact us with your pricing requests.
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