Marine Knuckle Telescopic ​Boom Crane

Marine Knuckle Telescopic Boom Crane

Application

A marine knuckle telescopic boom crane combines the features of a knuckle boom crane and a telescopic boom crane, allowing for increased reach and flexibility in marine applications. The crane features a knuckle boom that can be folded or extended to reach different areas, as well as a telescopic boom that can be extended or retracted to further increase the reach. This type of crane is commonly used in marine industries such as oil and gas exploration, offshore construction, and shipping, where it can be used for lifting and moving heavy loads on and off vessels or platforms. The combination of the knuckle and telescopic boom allows for increased precision and versatility in lifting operations, making it a popular choice for many marine applications.

For more marine telescopic knuckle boom cranes specifications, please click here.

Advantages and features

1. Contract structure, high strength;

2. Saving space, multi-function;

3. Easy for maintenance, lubrication and inspection.

4. High strength construction, high performance.

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

6. General motor or explosion-proof motor.

7. Automatic & manual overload protection system.

8. 360° continuous rotation with limits available

9. Certificate: CCS, BV, RMRS...

Marine Knuckle 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.
	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.
	Other brands	High power consumption, relatively poor quality.
Other Parts	Q345-B	Higher strength and better weldability.
	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.
			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.
			A32 & E36	Medium weldability, cold deformation, medium plasticity, good machinability; corrosion resistance.

Drawing of Marine Knuckle Telescopic Boom Crane

Main Specification

Safety Load	Max Outreach	Lifting Speed	Slewing Speed	Luffing Time	Hoisting Height
kN	m	m/min	m/min	s	m
10	6-20	15	1	60	30
15	8-22	15	1	60	30
20	5-24	15	1	60	30
30	8-25	15	0.9	70	30
50	12-25	15	0.75	80	30
80	12-25	15	0.75	100	40
100	12-25	15	0.75	110	40
Above specifications only for reference, We can supply various marine cranes according to your requirements.

Marine Knuckle Telescopic Boom Crane in Factory

How to repair and maintain the marine knuckle telescopic boom crane?

Like all heavy machinery, marine knuckle telescopic boom cranes require regular maintenance and occasional repairs to keep them in good working condition. Here are some tips on how to repair and maintain a marine telescopic knuckle boom crane:

1) Regular Inspection: Regularly inspect the crane for any signs of damage, wear and tear, or loose parts. Check for any fluid leaks and ensure that all safety features, such as limit switches and safety brakes, are functioning properly.

2) Lubrication: Proper lubrication of moving parts is critical to the crane's performance and longevity. Make sure to follow the manufacturer's instructions on lubrication frequency and the type of lubricant to use.

3) Electrical and Hydraulic System Maintenance: Keep the electrical and hydraulic systems of the crane clean and free from debris. Check for any signs of corrosion or wear and tear on wires, connectors, and hoses.

4) Repair and Replacement: If any part of the crane is damaged, replace or repair it as soon as possible to prevent further damage. Use only genuine replacement parts recommended by the manufacturer.

5) Training and Certification: Make sure that all operators are trained and certified to operate the crane. This can help prevent accidents and minimize the risk of damage to the crane.

6) Cleaning: Regular cleaning of the crane is important to prevent the buildup of debris and contaminants that can cause damage to the crane's moving parts.

7) Storage: Proper storage of the crane is important to prevent exposure to the elements and to minimize the risk of damage during storage. Follow the manufacturer's recommendations for storing the crane.

By following these tips, you can help ensure that your marine knuckle  telescopic boom crane stays in good working condition and operates safely and efficiently.