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Double Girder Overhead Crane

A double girder overhead crane is a type of industrial crane that consists of two parallel girders supported by end trucks. These girders provide increased stability and lifting capacity compared to single girder cranes. The hoist and trolley mechanism are typically mounted between the girders, allowing for precise movement of heavy loads along the length of the crane. Double girder overhead cranes are commonly used in manufacturing, construction, and other industries where heavy lifting and precise positioning of loads are required.

Confirming to IS 807-1976, IS 3177-1977 or IS 4137-1985.

RANGE:

We manufacture Double Girder overhead Travelling cranes ranging from 0.5 Ton to more than 100 Tons. We have comprehensive range of heavy duty EOT Crane Systems (D.G, S.G, Under Slung, Gantry / Goliath Cranes etc.) for various applications in steel, power, construction, sugar, heavy and General Engineering Sectors etc. Every crane is designed and manufactured as per customer requirement keeping in consideration with lot of things so as to provide best solution for their need and manufacture an optimum.

SALIENT FEATURES:

Box Girder: Girders are of plate box type construction with butt-welding joints in tension zone radio graphed areas.

Gear Box: Totally enclosed oil splash lubricated gear box with precision machine cut gears pinions.

Wheel Assemblies: C.T & L.T both assemblies are provided on “L” Block Type bearing housing fitted with anti friction spherical roller bearings.

Rope Drums: Seamless / fabricated rope drum suitable for required height of lift having flanges at both ends, accurately grooved as per desired pitch of wire rope. Mounted on spherical roller bearings fitted with a bearing housing at both ends.

Wire Rope: Fiber/steel core wire rope having 6 x 36 / 37 construction suitably selected tensile strength and factor of safety.

Mantenance Platforms: full length walkway platform on one end and two short platform on the other end with suitable height hand railing which ensures full safety for the maintenance.

Couplings & Brake Drums: C.T & L.T both assemblies are provided on “L” Block Type bearing housing fitted with anti friction spherical roller bearings.

Electrical Motors: All motors are S4 Crane Duty fan cooled standard motors with suitable rating as per relevant standards and classification of cranes. Invertor duty / slippring motors are also used as per site & design requirements.

Braking System: Electro hydraulic thrustor / D.C Shoe / A.C shoe type brakes are used for various applications of EOT Cranes. Individual brake for each motor is provided with designed & required braking torque as per classification of crane.

Control Panels: Steel sheet housed, powder coated control panel loaded with complete control switchgears along with control transformer. All control panels are as per IP 55 Protection.

Safety Parameters: Rotary type limit switch for main Hoist & Long lever type Limit switches for cross & long Travel motion are provided, Neoperene / Spring buffers are provided for C.T & L.T Motions, full length walkway platforms, maintenance platforms & 110 V Pendent supply voltage makes our crane fail safe.

UNIQUE FEATURES:

• State-of-the-art designs confirms to Indian and International Standards.
• Easy to commission, having maximum rigidity with a minimum dead load
• Safe and reliable hoisting and travelling
• Girders are cambered to an account equal to the deflection caused by dead load and half the live load of trolley
• Full length platforms on one side two short on other side for ease of maintenance
• Micro speed will be attained through (VFD) Drives
• Steel Core hoist rope having minimum factor of  safety of 6
• Safety and better productivity are ensured with advanced automation option
• Safe and substantial production of cranes in compliance with ISO 9001
• Higher efficiency to save power
• All motions are protected with limit switches

VARIANTS:

• Double girders overhead travelling cranes
• Single girder overhead travelling cranes
• Grabbing Cranes
• Ladle Cranes
• Goliath  / Semi Goliath Cranes
• Single Girder / Double Girder Under slung cranes

APPLICATION AREAS:

Steel mills, Foundries, Plastic Moulding Plants, Paper plants, Cement plants, Power plants, Dairy plants, Chemical plants Fertilizer plants, Petrochemical plants, Engineering Industries, Textile industries, General Applications, CNC / VMC Machine workshops, etc.

Double-Girder-EOT-Crane

TECHNICAL SPECIFICATIONS
Model SWL M.T Span (mtrs) ‘S’ HeadRoom (mm) ‘C’ End Clearance (mm) ‘A’ Hook approaches
(mm) (mm)
‘E’ ‘F’
Wheel Base (mm) ‘W’ Girder Projection Below Rail (mm) ‘B’ Crane Width (mm) Wheel Load (Approx) (MT) Crane Wt.(Approx) MT
GDG-5 5 10
15
22
1500
1600
1800
200
200
225
900
900
1000
750
750
800
3000
3000
4400
200
250
350
3700
3700
5200
5.6
6.0
7.4
9.4
11.6
16.0
GDG-7.5 7.5 10
15
22
1600
1700
1900
200
225
250
900
900
1000
750
750
800
3000
3200
4400
250
300
400
3700
4000
5200
7.5
8.0
9.9
11.4
12.6
18.4
GDG-10 10 10
15
22
1700
1800
1900
250
250
250
900
1000
1000
750
800
800
3200
3400
4400
300
350
400
4000
4200
5200
9.5
10.1
11.7
13.8
15.5
21.5
GDG-15 15 15
22
2000
2200
250
250
1100
1200
900
1000
3800
4400
400
450
4600
5200
14.3
16.5
18.8
27.2
GDG-20 20 15
22
2100
2300
300
300
1100
1250
900
1050
4200
4500
400
450
5300
5800
16.9
19.2
20.4
28.4
GDG-25 25 15
22
2350
2500
300
300
1100
1250
900
1050
4200
4500
400
450
5300
5800
20.8
23.1
22.8
32.5
GDG-30 30 15
22
2500
2700
300
300
1200
1300
1000
1100
4200
4600
450
500
5400
6000
23.6
26.6
25.5
37.5
GDG-40 40 15
22
2900
3100
300
300
1300
1400
1100
1200
5100
5200
500
50
6500
6600
28.6
33.2
25.5
43.0
GDG-50 50 15
22
3200
3300
300
300
1500
1500
1300
1300
5400
5500
50
600
7000
7500
36.8
40.6
34.6
49.5
GDG-60 60 18
22
3800
4000
300
300
1600
1600
1200
1200
5600
5800
600
650
7000
7500
49.0
52.0
55.0
70.0
GDG-80 80 15
22
4000
4200
300
300
1900
1950
1300
1350
5800
6000
650
700
7200
7500
52.0
53.5
75.0
90.0
GDG-100 100 15
22
4200
4500
300
300
1900
1950
1400
1400
6000
6200
700
750
7500
7800
58.0
61.0
90.0
100.0
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