DESIGN:
" "
hoists are designed as
per IS 3938 Class II duty operations and
repetitive use under most severe
operating conditions. Hoists specially
designed for higher lifts, faster
hoisting & cross travel speeds &
moveable on curved tracks can be
manufactured on request.
MOTORS:
We offer hoist &
crane
duty Vz hour rated squirrel cage
induction motors, confirming to IS 325
with comparatively higher H.P. and
higher starting torque to reduce
handling time. It is flange mounted to
suit our design and with Class B or F
insulation.
HOPE DRUM :
The rope drum is made
of seamless pipe machined & grooved
accurately, to ensure proper seating of
wire rope in a proper layer. The drum is
fitted with two heavy duty Ball / Roller
bearings of reputed make for smooth
operation & longer life.
ROPE GUIDE:
The rope guide is made
of special close grain castings & is
specially designed and accurately
machined to suit the grooves of the rope
drum & prevents the rope from overriding
& loosening. It also operates the limit
switches provided as a safety feature to
limit the over hoisting & over lowering
of the hook. The guide is so designed to
ensure proper tensioning of the rope.
GEAR BOX:
Totally enclosed oil
splash lubricated & dust free gear box
is provided for smooth, trouble free &
longer life. All gears are helical type
and cut from alloy steel / low carbon
steel on hobbing machines for achieving
higher precision & a special process of
gear toughening ensures smooth, silent,
trouble free running of drive system.
The pinions and gears are supported on
anti-friction bearings on both ends.
MODULAR :
The design is of
modular construction and its maintenance
is easy as each component i.e.
CONSTRUCTION :
brake, motors, gear box
& Control panel are independent units
and are accessible easily. The complete
hoist can be easily maintained by
keeping it in its installed position,
thus saving on precious labour as well
as down time maintenance time.
BEARINGS :
Heavy duty deep groove
ball / roller bearings of reputed make
i.e. FAG / NACHI or equivalent make are
used on all rotating parts and are
grease packed for longer bearing life.
TROLLEY:
Push-pull, Hand Geared
or Motorized Trolleys are of adjustable
type and fitted with ball bearings to
suit recommended size of I-Beams.
HOOKS :
Heavy duty high tensile
steel forged hooks are used & fitted in
such a manner that they rotate and
swivel freely.
BRAKES :
Heavy duty 3 phase AC
fail safe electromagnetic disc type
brakes are provided on hoisting motion
held closely to sustain the full load
when current supply is switched off
either accidentally or intentionally. It
is mounted on the rear end of the motor
for easy maintenance.
LIMIT SWITCH :
Snap action type limit
switches are provided to avoid over
hoisting & over lowering which is
actuated by rope guide.
CONTROL PANEL :
Is made of sheet metal
covering and are provided with (A)
Schneider /C&M/L&T/ Siemens make triple
reversing contractors, (b) Triple pole
thermal Overload relays of auto reset
type is provided in power circuit, (c)
Step down transformers to give 24 /110
Volts for pendant control, (d) Cartridge
type fuses are provided, (e) Special
single phasing preventor is provided for
the safety of Electricals.
SUPPLY VOLTAGE :
The hoist is suitable
for operation
on 400/440 Volts, 3 phase. |
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Notes: In accordance with our policy of
progressive development the right is reserved to
alter any details of specifications & design of
equipment without any prior notice.
Technical details furnished below are for the
Class-ll duty hoists with our Standar design of
6 M lift. Corresponding hoisting speeds as per
chart. The Specifications / Dimensions are
subject to change in case of any deviation from
our Standard specifications. |
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