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- Marine Valve in Stock

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Home > Marine Crane

Telescopic Boom Marine Crane

Telescopic Boom Marine Crane

Application

A telescopic boom marine crane is a type of crane that is designed to lift and move heavy loads on ships or offshore platforms. It is equipped with a telescoping boom that can extend and retract to reach different distances and heights. The crane is typically mounted on a pedestal or a deck, and it is operated hydraulically or electrically. The hydraulic or electric power is transmitted through a system of hoses and cylinders to move the crane and its load. The telescopic boom marine crane is often used in the shipping industry for loading and unloading cargo from ships, and in the offshore industry for maintenance and construction work on offshore platforms.

Advantages and Features

1. Contract structure, high strength;

2. Saving space, multi-function;

3. Easy for maintenance, lubrication and inspection.

4. High performance, reliable service.

5. Can be designed and manufacture to suit customers applications and special operating requirements.

6. Local control or remote control.

7. General motor or explosion-proof motor.

8. Automatic & manual overload protection system.

9. 360° continuous rotation with limits available.

10. Structure: telescopic boom.

11. Certificate: CCS, BV, RINA...

Marine Telescopic Boom Crane Structure

We not only provide customers with high-quality products, but also provide complete system solutions and high value-added services for specific customers. Therefore, it has strong competitiveness.

Configuration

Part Name	Type/Material	Advantages/Disadvantages
Slewing Bearing	42CrMo	It has high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low-temperature impact toughness.
	50Mn	The wear resistance, strength, elasticity and hardness are all high, and they are mostly used after quenching and tempering, and the welding performance is poor. Generally used to manufacture parts with high wear resistance and high stress.
	S45C	Cold plasticity in general, annealing and normalizing are slightly better than quenching and tempering; annealing and normalizing are slightly better than quenching and tempering; they have higher strength and better machinability; Toughness, plasticity and wear resistance.
Hoisting Winch	A32 & E36	Medium weldability, cold deformation, medium plasticity, good machinability; corrosion resistance.
Hoisting Winch	Q345-B	High strength and good welding performance.
Hydraulic Motor Type	DONGFANG and XINHONG brand	Good quality, cost-effective, long service life. With brake, high safety.
Hydraulic Motor Type	Other brands	High power consumption, relatively poor quality.
Other Parts	Q345-B	Higher strength and better weldability.
Other Parts	A32 & E36	Medium weldability, cold deformation, medium plasticity, good machinability; corrosion resistance.

Due to the fierce market competition, the phenomenon of low quality of other winch suppliers is frequent. What is the difference between us and other low-quality suppliers?

The specific differences are as follows:

Part name	Other low quality suppliers	Result	Our factory	Consequence
Slewing Bearing	S45C	Toughness, plasticity and wear resistance are poor, cold plasticity is average	42CrMo	It has high strength and toughness, and good hardenability; after quenching and tempering treatment, it has high fatigue limit and multiple impact resistance, and has good low-temperature impact toughness.
Hoisting Winch	ZG270-500	Casting defects cannot be avoided	A32 & E36	Medium weldability, cold deformation, medium plasticity, good machinability; corrosion resistance.
Hoisting Winch	ZG270-500	Casting defects cannot be avoided	Q345-B	High strength and good welding performance.
Hydraulic Motor Type	Other brands	High power consumption, relatively poor quality.	DONGFANG or XINGHONG brand	Cost-effective, good quality. With brake, high safety.
Other Parts	Q235-B	The use of products with small load has low strength, which is not conducive to the use of products with excessive load.	Q345-B	Higher strength and better weldability.
Other Parts	Q235-B		A32 & E36	Medium weldability, cold deformation, medium plasticity, good machinability; corrosion resistance.

Drawing of Telescopic Boom Marine Crane

Main Technical Parameter

Safe Working Load	Max Working Radius	Hoisting Speed	Slewing Speed	Electric Motor Power
kN	m	m/min	m/min	kW
5	5	15	1	3
	10		0.8
	15		0.6
	20		0.5
10	6	15	1	5.5
	12		0.8
	18		0.6
	24		0.5
15	6	15	1	11
	12		0.8
	18		0.6
	24		0.5
20	6	15	1	11
	12		0.8
	18		0.6
	24		0.5

Testing Picture of Telescopic Boom Marine Crane

Repair and maintenance matters

1. Overhaul of the transmission.

2. Maintenance and inspection of braking equipment.

3. Repair and maintenance of stressed structures.

4. Maintenance and testing of electrical systems.

5. Repair and maintenance of safety protection equipment.