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W Series RWM Electric Chain Hoist
The W-series range of electric chain hoists can be distinguished by the following; its extremely compact size giving the best possible closed headroom, its exceptional quality and its high levels of reliability. All are achieved by having the highest quality manufacturing standards, continuous improvements and quality control. All mechanical parts are examined under stringent conditions and rigorously tested, including long term performance testing to ensure the highest quality, efficiency and extended.
Lifting motor The cylindrical parallel rotor is produced with single windings for single
speed hoists or dual windings for dual speed hoists and all have class F insulation.
Manufacture in accordance with FEM class 2m, the duty cycle for single speed hoists is 40% and 10 + 30% for dual speed hoists. The
supply voltage for these motors can be specified when ordering and they are
available in a wide range of voltages,phases and hertz, thus making the RWM
chain hoists again very versatile and capable of working in any environment.
The braking system of the chain hoist uses a 230V spring-activated electro magnetic brake which allows for quick and safe stopping allowing
the load to be held at any desired height or position. The chain hoist has
an IP54 protection which protects it against dust, limited ingress and against
low pressure jets of water from all directions, limited ingress, for standard
indoor use. For other environments, please contact RWM.
Reduction gears
Found
in the gear box’s are epicycloid, totally enclosed and lubricated with
a permanent high performance grease. The gears are manufactured from high tensile
steel and are hardened and heat treated for smooth operation and maximum life
span. In addition, due to its sealed lubrication, the chain hoist can operate within a temperature range of -20°C to +60°C.
Overload by clutch The slipping clutch is a safety device
which limits both the up and down stroke of the chain hoist, by limiting
a possible overload. It is constructed from asbestos free braking
plates held under pressure by cup springs and is adjustable. Note:
this is only a safety feature and should not be used as a working
limit. The clutch is setting at 15% respect the nominal capacity of
hoist.
Electrical control panel The panel is fully hard wired with all components mounted on a steel backing plate. The panel
includes high quality contactor switches, a transformer for low voltage (24V) controls, brake rectifier, fuses and connector
terminals. Thanks to these high quality components, up to 240 operations per hour can be carried out. The electrical control
panel is mounted in an IP65 plastic enclosure and follows the CEI-EN 60204 norms. In addition, the panel are fully compatible
and interchangeable with a full range of hoist models.
Guide chain
The hoists
central body and patented chain guide are machined from one single casting, this allows precise possitioning of the load chain
into the load sprocket.
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