Part List
We offers one of the finest available selection
of energy efficient Electric Wire Rope Hoists according
to a standard Quality Assurance Plan. The product is widely recognised
by the industry for its performance. Optimum use of electrical
energy has been taken into account for achieving speeds with liberal
margins for voltage fluctuations, ambient temperature, gear efficiency
etc.
FRAME
Frame fabricated from Steel plates, having
rugged construction, is machined & bilted.
GEAR
CASES
Gear cases in fabricated frames are duly
shot peened, stress relived and machined on upto 5 Axis CNC machining
Centre.
GEAR
& PINIONS
We chose to make all their Gears & Pinions
in-house ensuring their quality, compatibility & serviceability.
All helical gears & pinion integral with shafts are make from
case-hardening low-carbon alloy steels and are hardened to 56-60
HRC. These are PROFILE GROUND running in splash lubrication oil
bath to give noiseless movement with max efficiency to save on
consumed electricity, All gears & pinions confirm to DIN-7/AGMA-12
standard.
ROPE
DRUM
Drum from seamless steel pipe revolves on
heavy duty self aligning roller bearings. The CNC machined spiral
grooves accommodate rope in one layer allowing two full turns
of rope in the drum when the hook is at the lowest position. Drum
size corresponds to relevant IS
ROPE GUIDE AND RETAINER Cast iron rope guide
leads the rope into spiral grooves in the drum and retains it
in the grooves preventing over-laping on or loosening off the
drum.
WIRE
ROPE
Non-Rotating Hylex type wire ropes of construction
18/7, 17/7 bought from reputed manufacturers, made of best plough
steel conforming to IS:2266 with factor of safety appropriate
to the class of duty is used with every Wire Rope Hoist.
HOOK
BLOCK
Standard forged trapezoidal section hooks
to IIS:3815/IS:8610 are used. Hook is carried in steel cross head
on thrust ball bearing. The hooks sheaves are supported on ball
bearings. Sheave dimensions corresponds to relevant IS.
MOTORS
& BRAKES
High Starting torque, crane duty, totally
enclosed squirrel cage induction ,motors in international frame
sizes of Crompton make are used. Motors confirm to IS:325. All
motors used are suitable for 415+10% V,50+-5%Hz,25% min CDF, suitably
dearated for higher duties, 50oC Amb. Temperature. D.C. Disc Brake
is a standard feature. Motors suitable for different voltages
& frequencies can be provided. Similarly, if required, A.C. brakes,
D.C.shoe Breake can also be supplied.
MECHANICAL
All Gears, Pinions, Rope Drums, Wheels,
Sheaves are manufactured on State of Art CNC Turning Centres giving
the benefits achieving dimensional accuracies, repeatability &
above all perfect profile & contours (which are otherwise difficult
to achieve) thus leading to higher fatigue life.
WHEELS
Closed die forged from medium carbon steels,
these wheels are produced on CNC turning centre for accurate bore
& tread profile. Two nos. large dia ball bearings are used for
better rolling effect.
CONTROL
The operation is through pendant Push Button
Station or Radio Remote Control having control voltage of 24V
for maximum safety of operator through flush-type hold on push
buttons housed in IP-55 enclosure. Electricals of reputed make
such as Siemens, Telemechnique, BCM are used. Individual motors
are protected by HRC fuses, soild-state overload relays, single
phasing & wrong sequence preventers. Limit Switches for over hoisting/over
lowering are also provided Soft Start/Soft Stop, AC drives for
Stepless Speed Control options are available.
CREEP
SPEED
At extra cost pole changing motors are used
to obtain double speed or through additional planetary Gear Boxes
to any motors. For more precision V.V.V.F.A.C Drives can also
be provided.
TROLLEY
Electric Wire Rope hoists can be supplied
for fixed mounting or with hand gared or electric driven trolley
according to the customer’s requirements.
OVERLOAD
LIMITER
Load sensing overload limiter as per ISO/FEM
requirement being introduced for the first time in the country.
Next
: Technical Specification of standard
Electric Wire Rope Hoist
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