**THE DESIGN **

We are concerned with the design of the hoisting arrangement of 2 tonne capacity of EOT crane ,which will lift the load up to a distance of 8 meters.

**1.DESIGN OF HOOK**

Selection of section : The section is trapezoidal

Selection of material : Mild steel

Load to lift : 2 tonne

Considering 50 % over loading.

So the design load = 2 tonne+50% of 2 tonne = 3tonne

Taking the help of (IS 3815-1969) for selection of material for 8 dimensions of crane hook.In IS 3815-1969 the nearest selection for 3.3 tonne is 3.2 tonne.

For load 3.2, proof load (P) is 6.4 tonne.

So C = 26.73√P = 26.73 x √6.4

= 67.62

≈ 68 mm

A = 2.75 C = 2.75 x 68 ≈ 187 mm

B = 1.31 C = 1.31 x 68 ≈ 89mm

D = 1.44 x C = 1.44 x 68 ≈ 98mm

E = 1.25C = 1.25 x 68 ≈ 85mm

F = C = 68mm

G = 35mm

G1 = M33, Pitch = 6mm (Coarse series)

H = 0.93 x C = 0.93 x 68 ≈ 63mm

J = 0.75 x C = 0.75 x 68 ≈ 51mm

K = 0.92 x C = 63mm

L = 0.7 x C = 0.7 x 68 ≈ 48mm

M = 0.6 x C = 0.6 x 68 ≈ 41mm

N = 1.2 x C = 82mm

P = 0.5 x C = 34mm ≈ 34mm

R = 0.5 x C = 0.5 x 68 ≈

U = 0.33 x C = 0.3 x 68≈20 mm

Checking for strength Area of the section = ½ x 63 x (41+8) = 1543.5 mm2

Centroid from ‘a’

= (.05 x 8 x 65) 63/3+(.5 x 41 x 63) x (2 x 63)/3

½ x 68 x (41+8)

= 38.571mm

= 38.6 mm= h2

So centroid from b = 63-38.6=24.4mm =h1

0 = 34 +24.4 = 58.4mm

r0 = A/(dA/u)

dA/u = [b2+r2/h (b1-b2)] ln r2/r1 – (b1-b2)

=28.65mm

r0 = A/(dA/u) = 1543.5 = 53.87 53.9 mm.

28.65

e= 0-r0 = 58.4 – 53.9 = 4.5mm

Moment

M = -P x 0

= -3 x 58.4

= – 175.2 (tonne x mm)

Stress due to bending is given by

b = M X 4

Ae r0-y

For point a

Y = -(e+h2)

= -(4.5+38.6)

= – 43.1 mm

For point b

Y = r0-r1

= 53.9 – 3.4

= 19.9 mm

Stress due to direct loading = P/A

= 3/1543.5

= 1.9436 x 10-3 Tonne/mm3

Stress due to curvature of ‘a’

ba = – (-175.2) x -43.1

1543.5 x 4.5 {53.99 – (-43.1)}

= 0.0112

So total tress at a

= – 0.0112 + 1.9436 x 10-3

= – 9.2642 x 10-3 Tonne/mm2

= – 9.2642 kg/mm2 -90.85 Mp

Stress due to curvature at b

bb = -(-175.2) x . 19.99 .

1543.5x 4.5 (53.9 – 19.9)

= 0.014763

So total stress at b

=bb + 1.9436 x10-3

=0.014763 + 1.9436 x 10-3

=0.0167 tonne/mm2

= 16.7 Kg/mm2 163.84 MPa

Let the material be class 4 carbon steel ( 55C 8)

Ultimate tensil strength I 710MPa

Design strength = Ultimate tensil strength

Factor of safety

= 710/4

= 177.5 MPa

163.84 > 177.5

So design is safe

Determination of length of threaded portion

Pitch = 6mm

Nominal dia of thread = 33 mm (G1) = d

Considering the screw and thread are of single safest & square mean diameter of screw =

dm = d- (p/2)

= 33 – (6/2)

= 30

tan = 1/dm = 6/( x 30)

tan = tan-1 { 6/( x 30)} = 3.640

Let the co-efficient of fraction be 0.15

So = tan = 0.15

= 8.530

**Torque required to resist the load**

T = W x dm* tan ( + )

2

Where w is the weight of load is 3 tonne and the load of the hook itself.

The maximum weight of the hook is 50kg (from the use of the soft ware ‘Pro-Engineer’)

So

T = 3050x 30 x tan (3.61+ 8.53)

2

=9866.42 Kgmm

**Stress induced in the screw**

Direct tensible stress (allowable or design)

=4w/ d02

d0 = core diameter of the screw.

dc = d-p = 33-6 = 27 mm

1 = 4x 3050

272

= 5.326 kg/mm2 52.24MR

**Torssional shear stress**

= 16T = 16×9866.42

de3 x 273

= 2.5529 Kg/mm2 = 25MP

Maximum shear stress in the screw

max = ½ (2 + 4 2)

= ½ √ (52.242 + 4 x 252)

= max = 36.15Mpa

**Height of the nut**

a)Considering bearing action between the thread in engagement.

Let ‘n’ is no of thread in engagement with screw.

Considering bearing action between nut & screw.

Let the permissible bearing pressure =pi= 6 MR.

We know

Pi = 4W

(d2-dc2) x n

So 6 = 4×3050 x 9.8

(332-272) x n

N = 4 x 3050 x 9.8

(332-272) x 6

1.27 x 9.8

12.5

So the height of the nut is = 2 x 12.5 = 25mm.

**b)** **Considering shear failure of thread across root**

Shear stress induced

= . W .

dc(0.5xP) xn

= . 3050 x 9.8 .

x 27 x (0.5 x 6) x n

= 117.46

n

= 0.5 x 177.5 = 117.46

n n

= 117.46

177.5 x0.5

= 1.32 = 2

So height is n x p = 2 x 6 =12mm

Tacking the highest value 25mm

**Design of pin which will carry the dead load & the load of hook.**

We have to determine the dimension of ‘t’.

n = M x Y

I

= M x (24)

I 2

Where “I” is moment of inertial about bh3 t x 243 x 2

12 12

Maximum bending moment for = M = ¼ x W x L

Let L = 70 mm

So M = ¼ x 3050 x 70 = 2 x 26687.5 Kgmm.

= 2 x 261.715 x 103 N-mm

= 2x 261.715 x 103 x 24

1 t x 243 2

177.5 = 1363 x 2

t

t = 1363 x 2 = 7.8 x 2 15.2 MM

177.5

16 mm

Taking 20 m for additional safety

**Diameter of the projected portion**

The projected position is undergo only shearing failure.

Design shear stress = 0.5 x design tensive stress.

Force action on each side i.e. projected portion is

3050/2 =1525 kg 14.95 x 103

15 KN

So the minimum value of the height of the projected portion is 15mm, taking n= 40mm for screwing arrangement.

= 15 x 103

/4 x dk2

= 177.5 x 0.5 = 15 x 103

(/4) dk2

= dk2 = 15 x 103 x 4

177.5 x 0.5 x

= dk2 = 15 x 103 x 4

177.5 x 0.5 x

= 215.19

= 14.66

15mm

Taking 20 mm for additional safety purpose.

So that it can be turned to thread in size ‘m20’.

Height of the projected portion

P * x * dk = w/2

Where p = bearing pressure or crushing stress.

Let p = 210 MPx

Allow crushing stress =210/4 =

210/4 x x x 20 = 3050 x 9.8

2

x = 3050 x 9.8 x 5

2 x 20 x 210

= 3.56 mm x 4

= 14.024 =15 mm

So the minimum value of the height of the projected portion is 15 mm, taking x = 40 mm for

screwing arrangement.

**Design of link and the cover plate**

Thickness of link and cover plate should not be minimum.

Let the material be (55C8).

a)Hole fopr placing the pin which will carry the hook will be ‘dk’ i.e. 20 mm.

zchecking for the failure of link & cover plate combindely(as they are of same material and undergone same condition of failure).

**Mode of failure**

Tearing of cover plate & link at the edge.

Crushing of cover plate and link.

Breaking at the lowest cross section.

i).Considering tearing of cover plate & link at the edge

Experiments from the riveted joints have shown that if the distance between the centre of rivet

and the edge is 1.5 times the diameter of the rivet.The element will not undergo the failure of tearing at the edge.

The same condition is also applicable in our case.

But for more safety reasons taking the distance between the centre of the projected element and the edge of the cover plate & linkis 2 times the dia of the projected element.

So Z = 2 x dk

= 2 x 20 = 40 mm

Considering tensile failure at the lower cross section

So σd = w/2

A

177.5 = 3050 x 9.8/2

2 x x x 30

x = 3050 x 9.8/2

2 x 30 x 177.5

= 28/2 mm ≈ 1.4 mm

Considering crushing failure

Force = σcrushing(d) x projected area

3050 x 9.8 = σcrushing(d) x (20 x x)

FOS

= 3050 x 9.8 x 4 = 14.24 mm ≈ 15 mm

2 x 210 x 20

So taking maximum of x i.e 15 mm, So x = 15 mm

AutoCAD drawing Of Cover plate

AutoCAD Drawing Of Link

**Design of shaft carrying the pulley**

The weight of each cover plate is 2.5 kg.

Weights of each link weigh 2 kg.

So weight of 2 covers plate & 2 link

Is 2 x 2.5 + 2 x 2 = 9 kg.

So the total weight which the shafts carry is 3050 + 9 = 3059 ≈ 3060

Each Side subjected to a load of 3060/2 = 1530 kg.

The shaft is only subjected to

**Crushing failure (at the cover plate and link).**

Shear failure.

**Crushing failure (at the pulley)**

Considering shear failure

= f/a

= allowable shear stress

= 0.5 x 177.5 = 0 .5 x 177.5 = 22.2 MR

FOS 4

Stress induced = 1530 x 9.8 = 150042

π/4 x 302 π/4 x 302

= 21.22 MPa

As induced stress is less than that allowable stress, the design is safe

**Considering crushing failure at the cover plate**

Crushing stress = Force/Protected area

Allowable stress = 240/4 = 60MPa

Induced Crushing stress = Force

Projected area

= 3060 x 9.8

70 x 40

As allowable induced stress 60.86 KN. The selection is feasible.

**Design of Sheave **

a = 40mm

b = 30mm

c = 7mm

d = 18mm

e = 1mm

l = 10mm

r = 12mm

r4 = 8mm

h = 25mm

r1 = 4mm

r2 = 3mm

r3 = 12mm

Material is caste iron

Let dia of the sheave = 20 x d

= 20 x 14

= 240mm

The reference is made from Rudenko,N.’Materials Handling Equipment ‘,Mir Publishers, Moscow(1969).

P .86,Table 16.

**Drum design
Drum grove size**

Referring to Redenko,N “Materials Handing Equipment”,Mir publishers,Moscow (1969),P.No.90 table 17.

Considering standard groove of drum, for, diameter of wire 15 mm as it is nearest to 14mm.

Drum diameter = sheeve diameter = 240 mm.

r 1 = 0.53 x d (d ≈15) = 9mm

s1 = 1.15d = 17mm

C1 = 0.25 d = 5mm

No. of turn on each side of drum

Z = (hi/πd) + 2 =

Where

H = Lifting Height.

I = Ratio of the pulley system.

D = Drum diameter ≈ 45 x 14 = 630

So Z = ( 8.00 x 2) + 2

Π x63

Z = 10

Full lenth of drum for one rope.

L = (2HI + 7)Si (I = 2 assumed)

πD

=(2 x 800 x 2 + 7)1.5

=34.75

≈35 cm

The drum is made up of IS grade = SG 80/2

With stress = 480Mpa

W = 0.02 x 630 = 10

= 22.6

≈ 23 mm

Outside dia of the drum Do = D + 6d

= 630 + 6 x 14 = 714mm

Inside dia of the drum = Di = D – 2W

= 630 – 2 x 25

= 584 mm

**Checking of strength
Bending Stress in drum **

σbend = 8WLD

π(D4 – Di4)

= 8 x 6200 x 9.8 x 35 x 630

Π x (6304 – 5844)

= 0.0828MP

Maximun Torque

Tmax = W (D + d)

2

= 6200 x 9.8 (630 + 14)

2

= 19.564 x 106

Maximum Shear Stress

= 16 Tmax D

π(D4 – Di4)

= 16 x 19.56 x 106 x 630

π x (6304 – 5844)

≈ 1.523 MPx

Direct Compressive Stress

= W = σc

wSi

= 6200 x 9.8

23 x 17

= 155.4MPx

Maximum Stress in the Drum

σ = √σbend2 + σc2 + 4max2

= (0.08282 +155.42 = 4 x 1.5232)1/2

σ < 480 MPx, S the Design is safe.

Fastening Of Rope With The Drum

For 14 mm dia

Locating Dimension

Pitch of screw = 53 mm

T = 43 mm

Screw size

Lo = 18 mm

L = 50 mm

Plate

C = 7 mm

No. of fastenings = 1

**Selection of Motor**

W = 3100 kg x 9.8 m/s2

V = 0.2m/sec

So power required = 3100 x 9.8 x 0.2

= 6080.123Nm/sec

= 6.08 Kwatt

Taking 11 Kwatt 3 phase induction motor (flange type) of 11 KW (nearest to 6.08KW)

Frame No. 132 M

Flange designation F265B

The speed is 1000 RPM

By using gear box the speed can be reduced to 300 RPM

**GearBox Calculation**

Gearbox ratio = (Input RPM x π x rope drum dia)

(speed x no. of falls /2)

= ( 980 x π x .714) = 183.54

(3.00 x 4 )

**Brake calculation**

Required Brake Torque = 1.5 x 716.2 x mech H.P.

Motor RPM

= 1.5 x 716.2 x 50.12

300

= 53.84 Nm

**Design of wormset **

Power = P = 6.08 Kwatt

RPM of Worm = Nw = V x 60

πd

= 0.2 x 60

π x 0.63

RPM of Worm Gear NG = 300 RPM

So R = NG

Nw

= 300

6

Let Ф = 14.5o

Let the centre distance = C = 300 mm =0.3m

Pitch circle diameter of the worm

Dw = C.8750 = 3Pc

3.48

Dw = 3.8750 = 0.10020m

3.48

≈ 100mm

Dw = 3Pc = 3Pa = 3 x π x ma

So ma = Dw/3π = 100.2/3π

= 10.63 mm ≈ 11mm

Pitch circle dia of the gear Dg = 2C – Dw = 2x 300 – 100 = 500 mm

Velocity ratio = Ng/Nw = 50

Ng/Nw = Dg /(ma x Nw)

50 = Dg/(11 x Nw)

Dg = 50 x 11 x Nw

Taking Ng = 1 , because Dw is closer to the calculated.

So, Dg = 550

Dw = 2C – Dg

= 2 x 300 -500

= 50mm

Face width of the gear

b = 0.73 x Dw

= 0.73 x 50

= 36.5

= 40 mm

Static strength of Bronze

σd = 90MPa

In worm drive irrespective of materials of worm and worm ger,the gear is weak.

So design should be based on gear.

**Tangential load on the gear **:

Ft = σ π mn y b

= (σd x Cv)π mn y b

Velocity factor Cv = 6 .

6 + Vg

Vg = π x Dg x Ng

60

= 8.69

Cv = 6 = 0.41

6 + 8.69

Form factor

Y = 0.124 – 0.684

Ng

= 0.11132

Tan λ = m x Nw

Dw

= 11 x 1

50

λ = tan-1 (.22) = 12.4o

Nominal Module = m (ma) x cos λ

= 11 x cos 12.4

= 10.743 mm

Ft = 90 x .41 x π x 1o.743 x .11132 x 40

= 5545.47 N

= 5.55 KN

Power Capacity = P1 = Ft x Vg

= 5.55 x 103 x 8.69

= 48.19 K watt

Which is greater than capacity so the design is safe.

Powe capacity of drive from wear point of view

P2 = Dg x b x W x Vg

= 550 x 40 x W x 8.64

W = .550 = Material combination factor.

For worm and worm gear made up of hardened steel and phosphor bronze

So, P2 = (550 / 1000) x 40 x .55 x 8.64

= 104.4 Kwatt

Power capacityof the drive, from the heat dissipation point of view is given by :

P3 = 3650 x C17

R + 5

= 3650 x 300 17

50 + 5

= 361.99K watt

So The safe power capacity is minimum i.e P1 = 48.19 Kw

CONCLUSION : The design of the hoist of EOT crane is done Numerically .We can implement the design practically in industries for various lifting jobs.

(For More Information Regarding This Topic Please Give Your Email id )

Filed under: Engineering | Tagged: BLOCK DIAGRAM, Crane, Design, EOT, EOT PARTS, Hoist, Hook, Pro-E, Stress Analysis |

premiere first, on August 13, 2008 at 6:20 am said:Very Nice Site! Thanx!

http://excellent-credit-card.blogspot.com

Tohid Sedaghat, on October 18, 2008 at 11:50 pm said:Dear sir.

I need to a reference for designing and producing hoists in E.O.T.. Specially I need to the restricting data of the design criteria. I mean some useful coefficients and also factor of safeties which should be mentioned.

I really appreciate it if you help me or inform me about a useful references.

Best regards

Brijesh, on August 20, 2010 at 6:24 pm said:Gearbox Reference Hand Book

Hoist, 2 stage, 3 stage and 4 Stage gearboxes more suitable for heavy duty applications like material handling and Industrial purposes also.

Modular type gear component designs with closer ratio distributions

A printed handbook for every gearbox and 1:1 AutoCAD drawings

Assembly drawings, part drawings with tolerances and manufacturing details

Gian chnd thakur, on January 13, 2009 at 1:09 pm said:Design of Gear Box, Hoist ,Pully Etc

RATHINDRAROY, on January 15, 2009 at 11:25 am said:DEAR SIR,

I WANT TWO SAMPLE DESIGN CALCULATIONS FOR COMPLETE EOT CRANES . CAN YOU GIVE ME THAT .

KIND REGARDS

RKROY

RATHINDRAROY, on January 15, 2009 at 11:26 am said:Can you give me design calculation for EOT Cranes . I want to learn EOT crane design.

Kind Regards

R K ROY

RAJU, on January 22, 2009 at 6:48 pm said:Please give the EOTcrane design of double girder

R K ROY, on February 18, 2009 at 1:30 pm said:PL GIVE ME A SAMPLE DESIGN CALCULATION FOR FOLLOWING EOT CRANES VARIANTS

20TON SWL X 20 M SPAN X 8 MTRS LIFT

20TON SWL X 30 M SPAN X 10 MTRS LIFT

50TON SWL X 20 M SPAN X 10 MTRS LIFT

50TONS / 10 TONS SWL X 20 M SPAN X 10 M LIFT

Rajendra silswal, on March 11, 2010 at 3:38 pm said:20TON SWL X 20 M SPAN X 8 MTRS LIFT

20TON SWL X 30 M SPAN X 10 MTRS LIFT

50TON SWL X 20 M SPAN X 10 MTRS LIFT

50TONS / 10 TONS SWL X 20 M SPAN X 10 M LIFT

pl give me a design calculation for above E.O.T. Cranes.

Sudhir Singh Patyal, on February 24, 2009 at 11:11 am said:Sir i need how to design a worm shaft of EOT crane is this any procedure if yes then pls send me some information about it

sanjay patel, on February 27, 2009 at 4:29 pm said:th eliterature is superb.

but, it is not clearly readable as symbols used in this artical gets discarded.

can u please send me it in *.doc format??

can u send me the design if the loading capacity is higher, for multiple bend of rope???

NIKHEL, on March 12, 2009 at 7:41 pm said:that’s fantastic

can get the IS 3815-1969 data

reagarding design of hoisting equipments.

ANGAD SINGH, on March 17, 2009 at 12:13 am said:software for eot crane calculation

Brijesh, on August 20, 2010 at 6:31 pm said:4 STAGES GEARBOX REFERENCE BOOK

3 STAGES GEARBOX REFERENCE BOOK

2 STAGES GEARBOX DESIGNS

HOIST GEARBOX DESIGNS

Hoist, 2 stage, 3 stage and 4 Stage gearboxes more suitable for heavy duty applications like material handling and Industrial purposes also.

Modular type gear component designs with closer ratio distributions

A printed handbook for every gearbox and 1:1 AutoCAD drawings

Assembly drawings, part drawings with tolerances and manufacturing details

http://www.doublegear.co.in/offering.asp

Contact : Brijesh Kumar ( APPLICATION ENGR)

Cell: 08802 633 630 ( Delhi & NCR and NORTH INDIA)

For DEMO.

hardik gajjar, on April 4, 2009 at 3:07 pm said:kindly guide me for the failure of pinion of the gearbox used in E.o.t cranes.

Mr Kepaaa, on April 16, 2009 at 9:34 am said:dear sir,

can you give me, any components system in electric wire rope hoist

and complete design with their pitcure…

thanx…

kind regards

Rakesh Devraj, on July 19, 2009 at 8:51 am said:This is the first time I visited this site. I really need design of trolley design on design of 10 Ton double girder eot crane

sanjay patel, on July 29, 2009 at 8:54 am said:Dear Sir,

can u please give me the Design procedure for following capacities?

5 TON EOT, 12 m span

10 TON EOT, 12 m span

15 TON EOT, 12 m span

20 TON EOT, 12 m span

KAVADE DEEPAKK V., on August 7, 2009 at 4:55 pm said:Sir,

M Design Er. in crane industry. I shall need your help. A Request to provide me your mail i d & contact details.

Regards,

Deepakk

Rajendran, on October 29, 2009 at 7:41 pm said:sir,

pls can u give me the sample calculation of hoist manufacturing ….

jayesh shah, on December 4, 2009 at 6:40 pm said:need to design a crab for EOT span 15mts, double girder. capacity 25 m.t.

shrirang puranik, on December 25, 2009 at 1:41 pm said:Sir, can you please e-mail me the design procedure and manufacturing considerations of 5 ton E.O.T hoist crane

Antonio (Spain), on January 13, 2010 at 3:03 am said:Dear Sir,

I need assitance for the selection of bearings for a sheave block for a deck crane (36 tons SWL), could you contact me by email ???

thanks,

Antonio Gonzalo

Spain

haragopal, on February 10, 2010 at 8:20 am said:I am interested in mechanical engg topics like the hoist design. Kindly send me further details. thank you

Sudheer, on February 11, 2010 at 10:40 pm said:Good Useful Information.

Melroy Kamath, on March 4, 2010 at 11:42 pm said:thank you sir for the design. really appreciated it. However if you don’t mind i need some information as to where i can get a 2d drawing of an EOT CRANE and also travelling mechanism design.

Rahul Sridhar, on March 14, 2010 at 12:56 pm said:The calculations are superb .. but it is not clearly readable as some of the symbols are not supported . can you send me the .doc copy of the calculations ?

Rahul, on May 13, 2010 at 5:34 pm said:really good article,

can you provide me wire rope selection procedure? in EOT cranes …..

D.S. Mehra, on May 13, 2010 at 6:28 pm said:Dear sir,

I want completed Eot crane design having 30T main and 5T auxiliary crane with 25 meter span

D.D.Sharma, on May 19, 2010 at 3:22 pm said:Design calculation of hook are appreciable, i am in the business of crane design

you are requested to send me the design calculation for crane design please take the data as under

Load 5T, Span 20 mts , lift 10 mts ,class II, indoor application

Speed MH 5MPM, CT 10MPM, LT 20 MPM

Regards

DDSharma

sanjay, on May 20, 2010 at 4:10 pm said:Dear sirm

can you please send me the design procedure of EOT cranes of 5 ton, 10, ton, 12 ton with 50 meter span,

It is very urgent

regards

sanjay

ahm.prime, on June 1, 2010 at 1:04 pm said:the website

thanks much

ahm.prime, on June 1, 2010 at 1:07 pm said:Sir, can you please e-mail me the design procedure and manufacturing considerations of 10 ton E.O.T hoist crane

double girder (full design calculation)

saikanth, on February 18, 2011 at 8:39 pm said:sir,

kindly send the double girder crane hoist(3.0ton) cap. G.A.Drawing

RAJU, on June 6, 2010 at 5:34 pm said:can you give me the detail calculation of eot crane design for industrial cranes

Thanks

T.Raju

RAJA, on June 7, 2010 at 3:02 pm said:Dear sir,

Can you mail me the 5 Ton SGEOT Crane,25 m Span design calculation,Hoist selection procedure with details consideration

Thanks & Regards

Raja

karthik, on August 16, 2010 at 2:27 pm said:PL GIVE ME A SAMPLE DESIGN CALCULATION FOR FOLLOWING EOT CRANES

20TON SWL X 20 M SPAN X 8 MTRS LIFT

20TON SWL X 30 M SPAN X 10 MTRS LIFT

kirankumar u s, on August 17, 2010 at 5:04 pm said:DEAR SIR,

I WANT TWO SAMPLE DESIGN CALCULATIONS FOR COMPLETE EOT CRANES . CAN YOU GIVE ME THAT .

KIND REGARDS

KIRAN

rakesh panchal, on August 24, 2010 at 11:49 pm said:i want electric wire rope hoist with electric trolley design calculation with genaral arrangement drawing software

rakesh panchal, on August 25, 2010 at 12:01 am said:dearsir, i want to sample design calculation e o t crane soft ware complet e

RAKESH, on August 28, 2010 at 10:01 pm said:Dear sir ,

, software for eot crane calculation with drawing as is 3177

,

RAKESH, on August 29, 2010 at 2:12 pm said:i want design caculation with drawing….. as per IS 3177 girder, trolly, endcarriage.

1. CT Wheel

a. Design of Wheel Diameter

b. Motor Selection

c. Input & Output Coupling Selection

d. Brake Selection

e. Design of Shaft Diameter

f. Bearing Selection

g. Wheel Adhesion Calculation

h. Wheel Tearing Calculation

2. LT Wheel

a. Design of Wheel Diameter

b. Motor Selection

c. Input & Output Coupling Selection

d. Brake Selection

e. Design of Shaft Diameter

f. Bearing Selection

g. Wheel Adhesion Calculation

h. Wheel Tearing Calculation

3. Rope Drum

a. Wire Rope selection

b. Rope Drum calculations

i. Diameter of Rope Drum

ii. No. of Grooves required

iii. Length of Rope Drum

iv. Rope Drum Pipe

c. Motor Selection

d. Gear Box Selection

e. Coupling Selection

f. Brake Selection

g. Design of Shaft Diameter

h. Bearing Selection

4. Bottom Block and Top Block (4 Fall / 6 Fall / 8 Fall)

a. Design of Top Block Shaft Diameter

b. Design of Top Block Sheave / Pulley Bearing

c. Design of Top Block Pulley Diameter

d. Design of Bottom Block Shaft

e. Design of Sheave/Pulley Bearing of Bottom Block Shaft

f. Design of Bottom Block Pulley

g. Design of Equalizing Pulley and Shaft

h. Design of Hook & Hook Nut

i. Design of Thrust Bearing

i want design caculation with drawing…..

bhavin patel, on September 6, 2010 at 6:44 pm said:dear sir

plaease give me the camplete e.o.t. overhead crane design procedure

i m very greatfull toy ou

also give me your canctact no and addrees

regards

bhavin patel

vapi

Firoz Pawaskar, on September 8, 2010 at 2:51 am said:Can you give me design calculation for EOT Cranesand specially gantry cranes. Sir please can you give us some design procedure above mentioned ffied.

Regards,

Firoz Pawaskar

Reckon Engineers

India

AMIT AGARWAL, on September 10, 2010 at 10:36 am said:We require 40 MT (Main Hoist)+ 10 MT (Auxillary Hoist)EOT Crane. Please advise weight of Pillars and other Structural material and please design the load bearing pillars.Please advise mfg. and fabricators and any second sale dealers of used cranes too.

AMIT AGARWAL, on September 10, 2010 at 10:37 am said:Our span is 60 ft. and grade II

hemant, on September 16, 2010 at 9:18 am said:nice design. it is very helpfull to make a design.

hemant, on September 16, 2010 at 9:21 am said:Sir,

your design is very nice and very help to make a design.

Regards,

Er. Hemant kumar

Ph: +919887076580

Moin, on September 19, 2010 at 2:01 pm said:PL GIVE ME A SAMPLE DESIGN CALCULATION FOR FOLLOWING EOT CRANES VARIANTS

6.3TON (2X3.2) SWL X 25 M SPAN X 8 MTRS LIFT

Many Thanks & Kind Regards,

WILSON OCHIENG, on September 21, 2010 at 2:47 pm said:i need to modify an existing trolley hoisting arrangement used for cane offloading so that the hoist drums are independently driven.the safe working load should be 15t.it has a travel span of 32m and a lifting height of 18m.trolley wheel base is 4m wide and pitch of 3.3m.i would appreciate assistance in determining the necessary specs for the motor,gearboxes and brakes for the hoists and the cross travel .

Shankara Rao, on September 27, 2010 at 8:47 pm said:Hello,

Can you provide me the EOT crane Hoisting motor and other travel motor KW calculation examples with Formulas?

kind Regards,

S.Rao

RM.V.Arasu, on September 29, 2010 at 11:52 am said:I need assistance for details regarding physical parameters to be measured and monitored in a Security System for static EOT cranes used in building construction

Avinash, on October 10, 2010 at 2:03 pm said:Dear Mr. Rajendra,

Thank you for the calculation kindly provide a design of typical EOT crane.

Regards,

Avinash

dipesh, on November 22, 2010 at 4:07 pm said:your design of hoist is excellent .

ropesheave of hoist detail is good.

k.s.reddy, on November 27, 2010 at 8:39 pm said:dear sir i want design for eot, hot ,gantry&zib crane sample design s . please can u give me the sample calculation of hoist manufacturing. thnx 2 u

saikanth, on February 18, 2011 at 8:45 pm said:SIR, plz send me G.A drawing of 3 ton double girder E.O.T crane

saikanth, on February 18, 2011 at 8:47 pm said:sir,

plz send me G.A drawing of 3 ton double girder E.O.T hoist

NIKHIL ARORA, on March 11, 2011 at 3:55 pm said:Dear Sir,

I want 30 MT EOT class III hoist Gear Box, I want to know the hoist gear box ratio. i am having data as follows:

Hoisting Speed – 3 Mtr / Min

Electric Motor – 30 HP

Electric Motor rpm – 1440

Rope drum diameter – 450 mm

No. of falls – 8

Please let me know.

Thanks

Nikhil Arora

9737047207

Victor Ntshekane, on March 15, 2011 at 1:29 pm said:Dear Sir

Can you please send me a portal crane design procedure, of capacity of 10 ton, respectively.

AMOL SARODE, on March 22, 2011 at 8:42 pm said:dear sir,

will you provide me soft copy for design calculation for monorail hoist or excel sheet for the same.

Ashvin palande, on March 23, 2011 at 9:50 am said:I want to design 7.5 ton Single girder box type EOT crane.pl.guide me for calculation or design.

phani kumar varma, on May 3, 2011 at 4:02 pm said:can you please send me the selection procedure of eot and specifications of all types eot designing structure

Anonymous, on July 2, 2011 at 4:06 am said:Dear sir, i will be greatful if you could send me full dimension and construction detail for 5 Tons and 10 tons E.O.T CRANES, Span 24 meters, lift 8 meters

Anonymous, on July 22, 2011 at 9:49 pm said:dear sir,

ur explanation is superb,i have just completed my engineering & joined as design engineer,the problem is that the firm is newly started,so MY kind request to U IS TO send the design procedure of crane assembly (EOT,HOT,JIB.GOLIATH). I just beg of u and also ready to pay.ANYBODY FRM ABOVE PLZ HELP.

CONTACT:09665621417.

MAIL harish7878@rediff.com

Anonymous, on July 22, 2011 at 9:50 pm said:dear sir,

your explanation is superb,i have just completed my engineering & joined as design engineer,the problem is that the firm is newly started,so MY kind request to U IS TO send the design procedure of crane assembly (EOT,HOT,JIB.GOLIATH). I just beg of u and also ready to pay.ANYBODY FRM ABOVE PLZ HELP.

CONTACT:09665621417.

MAIL harish7878@rediff.com

Partheeban, on October 11, 2011 at 9:57 pm said:Dear Mr. Parmanik,

Could you please suggest a reference book for these calculations?

Thank you.

manoj, on November 10, 2011 at 5:40 am said:dear sir

can u give me various housing drawing of gear box use in crane company please

Ashwini, on December 1, 2011 at 4:51 pm said:There is beam of cross section I, we know the span and section modulus (Z) then how will i calculate the lifting capacity of EOT crane?

shivaswamy, on January 19, 2012 at 1:18 pm said:Dear sir,

Its nice to see the design of hoists. can you help us in design of eot cran,

jib crane and grab buckets. we are manufacturers of these.we look forward

to a fruitful business co-operation.

with regards,

shivaswamy,

General Manager

Lakshmi industries, on February 8, 2012 at 1:38 pm said:PL GIVE ME A SAMPLE DESIGN CALCULATION FOR FOLLOWING EOT CRANES VARIANTS

10T cap EOT crane Double girder. Span 27mtrs,height of the lift 8mtrs

Gantry crane 5T cap Span 12mtrs Heighte of the lift 5mtrs

Gib crane 5t Fixed location 180degree 4mtrs C.T,5mtrs heighte

Please send Design with formulas

Dhiraj Gupta, on July 9, 2012 at 11:01 am said:Please share the design procedure of EOT crane

rajesh, on February 23, 2012 at 12:32 pm said:CAN ANYBODY TELL ME THE APPROX WEIGHT OF E0T CRANE OF 70 T CAPACITY OF 12 M SPAN

NeeleshGaikwad, on March 10, 2012 at 11:25 pm said:Hello all, if anybody wants to know the design results of your required crane, send me your eot crane requirement data sheet, I can design it for you.

Only double girder eot cranes from 10 Tons to 300 Tons.

eotcranedesigner@gmail.com

NeeleshGaikwad, on March 11, 2012 at 8:10 am said:you may also visit eotcranedesigner.wordpress.com and request ur design.

Crane Drawing, on April 4, 2012 at 10:59 am said:Good post. I learn something totally new and challenging on websites I stumbleupon on a daily basis. It’s always useful to read through content from other writers and practice something from other websites.

Francis, on May 19, 2012 at 1:53 pm said:Hello, can anyone give me a book reference of what to consider in designing a girder to column connection for a hoist crane having 12.5T capacity…

Thank you…

Sanjay Kumar Behera, on June 1, 2012 at 2:26 am said:Dear Sir,

I request you to e-mail me the complte design procedure and manufacturing considerations of EOT Crane.

1. Design of trolley structure.

2. Design of main girder.

3. Design of side truss.

4. Design horizontal truss.

5. Design of members.

6. Design of gantry girder and column.

7. Design of mechanical components, rope, pulley, drum.

8. Design of crane hooks, brakes, drives etc.

Regards

Sanjay

Sachin Wagare, on June 14, 2012 at 4:35 pm said:I want to design 250 kg wire rope hoist ,2.5 mpm speed.pl.guide me for calculation or design.