Necessawry Input Data

No.of giders

Capacity in Ton MH
(Leave blank, if no AH) AH
Span in meter
Ht of lift in meter
Speed in meter M.H
A.H.
CT
LT

Class of duty M

Type of LT drive

Type of motors for drive forM.H

AH

CT

LT

Duty of motors

CT Rail

LT Rail

Optinonal Input Data (any if left blank, will be calculated automatically)

Rope fall MH AH
Rope drum dia in mm MH AH
No. of LT Wheels
Weight in Ton Crane
Trolley
Wt. of hook block in Kgs. MH AH
Ambient Temp deg C

Output

Weight in tons: Crane
EOT Crane Mechanical Calculations (IS-3177-2020)

Mona Saxena & Assoxiates, 5-B, Pocket-B, SFS, vikaspuri Extn, New Delhi-110018

Trolley
Wt. of hook block in Kgc MH Wheel load Kilo N CT LT Ambient temp correction factor=
AH
Wire Rope MH no.of falls dia. mm Length in meter Breaking strength Kgs. All wire ropes 6*36 constuction, 180 class, fibre core types
AH no.of falls dia. mm Length in meter Breaking strength Kgs.
Rope Drum MH dia in mm Length mm Thickness mm after machining including rope grooves
AH dia in mm Length mm Thickness mm after machining including rope grooves
Motor MH HP Frame size

All motors shall be Crane duty, 6pole, TEFC type

AH -"- -"-
CT -"- -"-
LT -"- -"-
Pulley dia mm MH Bottom
_"_ AH Bottom
Wheel dia mm CT LT

Brakes

MH
AH
CT
LT

Couplings

MH input no.

All input coupling to be full geared brake drum type coupling

Output no. Rope drum type
AH input no. Output no. Rope drum type
CT input no. Output no. Full Geared
LT input no. Output no. Full Geared

--- Gear box overall ratio, Number of teeth in Gear, Pinion and module in First, Second and Third stage ---

Ratio

MH

AH

CT

LT

First stage

Second stage

Third stage

Suggested Gear box size

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