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CMC INTERNATIONAL
Changzhou Cranes Mechanical Electrical Engineering Co., Ltd.
Sandy(Manager)
Mobile no. 0086-18001505166
Tel: +86-519-81886887
Fax: +86-519-85163887
Add: No.8-20 Shunyuan road, Xinchen industrial park, Xuejia town, Xinbei district, Changzhou city, Jiangsu province, P.R.China.
Postalcode: 213125
Email: kaison1110@qq.com
       craneschina@gmail.com
       info@craneschina.cn
300T Goliath Gantry Crane

The 300T145m Goliath Gantry Crane is applied for hull constructions in shipyards (such as ship docks, slipways and etc.). The Goliath Gantry Crane has functions of hoisting up and down, swinging, turnover in the air by sections. The turnover by sections and closure operation are the special features. By means of the turnover operation by sections through two trolleys, the adjustment of hoisting up and down will be made first to have the Upper trolley bear the whole sections. The Lower trolley with no load will go through the underside of the Upper trolley and re-tie on the other side of the section. Finally the 180 degrees turnover operation can be completed by the Upper and Lower trolley's hoisting up and down, and the horizontal traversing movement of the Upper and Lwer trolleys.

The main girder of the Crane is of ladder-shaped monobox girder structure. Four rail tracks for the Upper and Lower trolleys traversing movement are arranged at upside and downside of the monobox girder. The maximum Twin-Lift capacity of the two trolleys is not more than 300T. During the turnover operation in the air, the section weight is not more than 300T. The rigid legs are connected with the main girder by the high-strength bolts. An elevator can be provided inside the rigid leg, and the operators can take the elevator to the inner side of the rigid leg from the bottom of rigid leg directly. The top of the main girder can be reached through ladder. Walkways will be provided on the main girder for the operator and maintenance persons access. The flexible legs are of triangle cannulation structures, and the two round pipes are equipped with ladders so that the operator can reach the top platform of the flexible leg or top of the girder directly. The flexible legs are connected with the main girder by the flexible hinges. The Gantry-long-travel mechanisms have totally 64pcs wheels, among which 2x16pcs are at the side of the rigid leg, and 2x16pcs are at the side of the flexible leg. The wheel bogies are connected with the supporting legs (the rigid leg and the flexible leg) through balance girders. The operator's cabin with good visual field is installed at the lower side of the upper trolley, and from the operators seat, the movement of the hooks within the operation range can be clearly observed.

A maintenance crane is equipped on the crane, which is located on the top of the main girder and at the side of the rigid leg. The maintenance cranes lifting capacity, boom length and slewing angle will meet the maintaining requirement for the Upper and Lower trolleys.

The crane is powered through 3-Phase 6.6kV(10%) 50Hz high-voltage, which is fed by the Power Cable reel. The Upper and Lower trolleys are powered by means of cable pulley moving cable device which is located on the main girder.

Main technical particulars

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Lifting capacity

 

 

Total lifting capacity

300T

 

Upper trolley (I, II hooks)

2 x 150T

 

The biggest load difference between two hooks

100t

 

Lower trolley (III hook)

150t

 

Joint Twin-lift operation of Upper and Lower trolleys

300t

 

Turnover operation

300t

 

 

 

 

Component force of canting pull for main hooks (I, II, I)

 

 

Along Gantry-long-travel rail track direction

5% (abt. 3 degrees)

 

Along trolley-traversing rail track direction

10% (abt. 6 degrees)

 

 

 

 

Capacity of elevator

Abt. 400kg

 

 

 

 

Main dimensions

 

 

Rail span

145m

 

Wheel Base gauge of leg

30m

 

Height of clearance (from bottom of girder to rail)

69.05m

 

 

 

 

Hoisting height

 

 

Above rail surface of main hooks (l, II) / below rail surface

70m/14m

 

Above rail surface of main hook (III) / below rail surface

62m/14m

 

 

 

 

Rail span of 2 x 150T Upper trolley

8m

 

Rail span of 150T / 30T trolley

6.5m

 

 

 

 

Hoisting speed

 

 

Upper trolley (I, II hooks)

load 0 - 150t, 0.4 - 65m/min

 

 

no load, 0.4 - 13m/min

 

Lower trolley (III hook)

load 0 - 150t, 0.4 - 65m/min

 

 

no load, 0.4 - 13m/min

 

 

 

 

Traversing speed of Upper and Lower trolleys

 

 

Wind velocity < 14m/sec

0.6 - 20m/min

 

Wind velocity < 8m/sec

0.6 - 30m/min

 

 

 

 

Gantry-long-travel speed

 

 

Wind velocity <14m/sec

0.6 - 20m/min

 

Wind velocity <8m/sec

0.6 - 30m/min

 

 

 

 

Elevator speed

 

 

400kg elevator speed

0.5m/sec

 

 

 

 

Maintenance crane

 

 

Lifting capacity

5T

 

Hoisting height

Abt. 90m

 

Hoisting speed

full load, 15m/min

 

 

No load, 30m/min

 

Trolley speed

20m/min

 

Slewing speed

0.5 r.p.m

 

 , ;

 

 

Distance between lifting point and vertical center line of the rigid leg

 

 

Upper trolley (I, II hooks)

3.5m

 

Lower trolley (III main hook)

5.2m

 

 

 

 

Distance between lifting point and vertical center line of flexible leg

 

 

Upper trolley (I, II hooks)

3.5m

 

Lower trolley (III main hook)

5.2m

 

 

 

 

Minimum distance between Upper and Lower trolleys

11m

 

 

 

 

Wheel load

 

 

Maximum working wheel load of flexible leg

Abt. 570kN

 

Maximum working wheel load of rigid leg

Abt. 620kN

 

Maximum non-working wheel load of flexible leg

670kN

 

Maximum non-working wheel load of rigid leg

710kN

 

(The horizontal wheel load is calculated by 0.1 times of vertical wheel load.)

 

 

(The wheel load can be adjusted by adding or reducing the number of the wheels as per special requirement)

 

 

 

 

 

Wheel number

 

 

Rigid leg

2 x 16 = 32, driving ratio 1/2

 

Flexible leg

2 x 16 = 32, driving ratio 1/2

 

 

 

 

Diameter of wheel

800mm

 

 

 

 

Type of rail track

A120

 

 

 

 

Total installed power

2,000 KVA

 

 

 

 

Email:craneschina@gmail.com kaison1110@qq.com Mobile no. 0086-18001505166 Tel:+86-519-519-81886887 Fax:+86-519-85163887
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