Shipbuilding Double Girder Gantry Crane

Capacity: 2×50+100t, 2×75+100t, 2×100+160t, 2×150+200t, 2×400+400t Span: 50～185m
Span: 8-35M
Lifting height: 6-9m
Lifting speed: 28～76/10～50m
Widely used in: Ship manufacture and the dock

Double Girder Gantry Crane for Shipbuilding is one kind of gantry crane, it main used to berth assembled hull. This kind of shipbuilding crane have the feature of load and unload, lifting, segmented turning the air. Have the advantage on turning the hull and close operations. the first is through the upward and downward adjustments, the entire segment by car to bear on.

Ship gantry crane used in the place of ship manufacture and the dock, its task is to put all the parts required for the manufacture of the ship (ribs, steel, steel, etc.) from the ground transportation to manufacturing place. this transport work must be able to complete the task in a very long journey in transportation quickly. therefore, the number of cranes decided, enough to reach the dock area of the entire foundation, and each crane mutually interfere with each other in principle.

Technical Specification
Lifting capacity	t	2×50+100	2×75+100	2×100+160	2×150+200	2×400+400
Two trolleys lifting		150	200	300	500	1000
Section reverse lifting		100	150	200	300	800
Work classifications	A5
Span	m	50	70	38.5	175	185
Lifting height(m)	H1	35	50	28	65/10	76/13
	H2	35	50	28	65/10	76/13
Lifting speed(m/min)	Full load	0.5~5	0.5~5	0.4~4	0.5~5	0.32~3.2
	No load	1~10	1~10	0.8~8	1~10	0.64~6.4
Crane travelling(m/min)	Full load	2.5~25	2~20	3~30	1~25	3~30
	No load	3.5~35	3~30	4.5~45	1~30	3~40
Trolley travelling(m/min)	Full load	2.5~25	2.5~25	3~30	1~25	3~30
	No load	2.5~35	2.5~35	3~45	1~30	3~40
Wheel load	KN	260	320	330	700	750
Total power	KW	400	530	650	1550	1500
Power	3-phase AC 50Hz 10KV

1. Both side of all the steel plate of crane are pretreatment by pretreatment production line, Sand blasting-- Primer spray--Primer drying. Eliminate the innerstress of steel plate, increase the adhesive force of the steel structure. Ensure the appearance and anticorrosion quality.

2. Steel plate cutting adapt whole sets Messer CNC plasma cutting machine from Germany, very fast cutting speed, little deformation, High precision, Deviation could be controlled within 1mm, it insure the raw material at high quality standard and can reach top level in the industry.

3. The welding of main beam adapt high efficiency and intelligent welding robot, Henan Mine Crane CO., LTDare No.1 enterprise who adapt this high technology machine. The welding joint inside of the main beam adapt advanced MAG welding, adapt Ar+CO2 mixed protective gas, The 4 welding joint outside of the main beam adapt automatic submerged-arc fillet welding machine.

4. The welding of main beam adapt radiographic inspection and ultrasonic flaw detection for the welding joint and fillet weld position

5. The welding of end beam adapt double gun gantry submerged arc welding, highly welding quality ensure the stable quality of the crane effectively.

6. Adapt the steel plate rolling drum and wireless steel tube, Henan Mine Crane CO., LTD has a set of steel plate rolling drum producing and processing line which is industry-leading level. From pre-bending by 1250t press machine, to Edge rolling by three-roller plate roll, at last the longitudinal joint and circumferential joint of drum are welded by automatic welding center and drum processed by heavy duty CNC horizontal machine tool.

1. Weight overload protection device.

2. Top quality long time bearing polyurethane materials buffer.

3. Lifting limit switch

4. Crane travelling limit switch.

5. Trolley travelling limit switch.

6. Voltage lower protection function.

7. Emergency stop system.

8. Wind speed indicator

9. Current overloads protection system and so on!

Design rules for cranes GB/T3811-2008

Safety rules for lifting appliances GB6067.1-2010

General Gantry Crane GB/T14406-2011

Gantry crane manufacturing and tolerances of rail installation GB/T10183-2005

Crane test specification and procedures GB/T5905-1986

Crane electric control equipment JB/T4315-1997

Important application wire rope GB8918-2006

Carbon structure steel GB/T700-2006

Low alloy high strength structure steel GB/T1591-2008

Welding joint radiographic inspection standard JB928-1994

Steel welding joint manual ultrasonic flaw detection way GB11345-1989a

Henan Mine Crane could arrange engineer to do supervision of installation, make the load test, do commissioning, training of the buyer's workers, the buyer should be responsible for each of our technician’s accommodation, meals, round-trip tickets, travel expenses and self-security. The engineer’ salary is USD100.00 per day abroad.

1. Quality problems of products sold by our company will be solved as per the “three guarantees” system of our company by the “three guarantees” service team;

2. Related personnel will be sent to the site immediately after receiving quality complaints (by call, letter or oral notice) from clients;

3. Personnel involved in after-sales service shall be serious and considerate in handling the problem to make clients care-free;

4. In addition to solve quality problems, personnel involved in after-sales service shall train clients, answer their technical inquiries and related questions free of charge;

5. Related cost for products with quality problem will be shouldered by our company. Our company charges for quality problems caused by clients (or problems after the warranty erm), but the charge will not be higher than the expense (or cost);