The telescopic hydraulic crane is an electro-hydraulically driven marine lifting equipment. It realizes the telescoping, slewing and luffing movements of the boom through the hydraulic system, and can be installed on ship decks, ship sides, hatch openings and various hull structural positions. It is mainly applicable to vessel types requiring offshore lifting operations, such as supply ships, tugboats, engineering ships, fishing vessels and platform supply vessels.
Main Components
- Base: Cylindrical structure, fixed to the deck by welding or bolting.

- Boom: Consists of box-type fixed section and telescopic section, driven by hydraulic cylinders for extension and retraction.
- Hydraulic System: Hydraulic power unit, luffing mechanism, telescopic mechanism, slewing mechanism, hoisting mechanism and valve assembly.
- Slewing Bearing: Supports 360° continuous unlimited rotation.
- Control Mode: Operated via control platform / remote control/operator cabin, with electro-hydraulic integrated control.
Specifications
- Safe Working Load (SWL): 1–20 tons
- Working Radius: 2.5–40 meters
- Rotation: 360° continuous rotation
- Operating Temperature: −40℃ to +50℃
- Standard: CCS or as per customer's requirements
- Certification: CCS / ABS / BV and other classification society certifications
- Electrical Protection Grade: IP56, IP66 or higher
Features
The main features of the YFM Telescopic Hydraulic Crane are as follows:
- Full hydraulic drive ensures smooth hoisting, luffing, telescoping, and
slewing, featuring fine inching performance, stepless speed regulation, and compound actions. - Telescopic boom enables compact stowage and small footprint, with wide working coverage, ideal for vessels with limited deck space.
- Marine-grade coating and sealing for key parts deliver superior salt fog corrosion resistance.
- Complete safety configuration: electromagnetic brake, overload protection, hydraulic lock, emergency lowering, and height limit switch.
- Intuitive lever operation with function icons; wireless remote control optional.
- Hydraulic system built with anti-shock and buffer structure.
- Low-maintenance design: wear-resistant boom guide rails and centralized hydraulic piping for easy daily inspection.
- Fully designed, calculated, and certified to CCS, ABS, DNV, KR, and other mainstream classification society standards.
Optional Configurations & Services

- Man basket / Personnel lifting function
- Wireless remote control system (IP67 protection rating)
- Load moment limiter
- Travel limit for extreme positions
- Luffing angle limitation
- Height limit and anti-collision device
- Winch encoder (for lifting height display)
- Anemometer with alarm function
- Emergency stop & audible alarm via remote control
- Hydraulic oil tank with heater and breather dryer
- Foundation anchor bolts and hull reinforcement drawings
- Lifting accessory configuration: grab bucket, container spreader, personnel basket, etc.
- Installation and commissioning guidance
- Crew operation training
- Spare parts package
Application Scenarios
The telescopic hydraulic crane is mainly used for offshore cargo handling, lifeboat launching and recovery, lifting of anchors and underwater equipment, as well as supply transshipment.
Examples:
- Platform Supply Vessel (PSV): Lifting materials from the deck to offshore platforms or tugboats.
- Aquaculture/Fishing Vessel: Net hauling, anchor weighing, and lifting catches.
- Research/Engineering Vessel: Deployment and recovery of diving equipment, small ROVs and lifting tools.
- Bulk Cargo/General Cargo Vessel: Lifting shore supplies and spare parts alongside the ship.
Advantages of YFM
- A professional team for the design, manufacturing, and sales of
marine cranes. - + 10 years of experience in marine crane design.
- + 15 years of manufacturing and overseas export experience.
- Familiar with mainstream international classification society regulations and holds relevant certification qualifications.
- Capable of designing, manufacturing, and testing products in accordance with major international classification society standards, and obtaining official product certificates.
- Able to provide complete engineering calculation documents, including boom strength calculation, overturning stability analysis, hull foundation reaction force calculation, etc.
- Customized design available according to vessel requirements: adjustable installation position, boom length combination, lifting capacity (common range: 5t–20t), power supply voltage, and other parameters.
- Well acquainted with special marine operating conditions, including vessel heel & trim, wind load, dynamic load factor, ice load, and other environmental working parameters
When selecting a telescopic hydraulic crane for onboard lifting operations, we recommend determining the model based on actual working conditions, including the type of lifted materials, maximum lifting capacity, working radius, installation position, and classification society requirements.
You are welcome to provide your vessel type and operational parameters, and we can furnish you with a preliminary layout plan and calculation report.
👍www.yfm-crane.com
👍 +86 15818704927
👍 anne@yfm-crane.com/info@yfm-crane.com
👍 https://www.yfm-crane.com/contact-us
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