Name: Telescopic Knuckle Boom Crane
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Telescopic Knuckle Boom Crane

Major maritime and offshore companies often choose the Heila telescopic knuckle boom crane. The flexibility of the outreach combined with the high lifting capacity makes these cranes very popular, especially for applications requiring high capacity on a short outreach. Telescopic knuckle boom cranes require limited space on deck in the stowed position.
The cranes are suitable for a wide range of onboard and off-board activities, including buoy handling and hoisting structures and equipment.
We have standardised this complete crane range. On our customer’s request, the options for these cranes can be customised.

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Please let us know your purpose, road condition, type of cargo, tons of your cargo, size of trailer, quantity, etc.

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Dump trailer, flatbed trailer, full trailer, rail-plate trailer, grille trailer, container trailer, tank trailer, vehicle transporter, van trailer, all kinds of special vehicles, dump truck, tractor-trailers, semi-trailers, self-tilting trucks, trailer parts,Electric Cargo tricycle etc.

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1. Overview

A telescopic knuckle boom crane combines the space-saving articulation of a knuckle boom with the extended reach of a telescopic boom. The articulated arm folds compactly for transport, while the telescopic sections extend outward to achieve impressive outreach, making these cranes ideal for heavy-duty applications where both flexibility and long reach are required .

2. Key Features

Feature	Description
Articulated + telescopic design	Folds for compact storage; extends for maximum reach
Long reach capability	Outreach up to 30m+ with telescopic extensions
High lifting capacity	From 5 tons up to 120+ tons (marine/heavy-duty)
360° continuous slewing	Full rotation for flexible positioning
Multi-function operation	Simultaneous slewing, luffing, and lifting
Variable speed control	Continuous control from zero to maximum speed
Compact footprint	Ideal for confined spaces on vessels, trucks, and platforms
Corrosion protection	NORSOK M-501/ISO 12944 CX standard for marine environments

3. Specifications (Representative Models)

Marine / Offshore – MAXTECH Series

Parameter	Value
Safe Working Load	Up to 120 tons
Working Radius	5 – 30 meters
Slewing Speed	0 – 0.4 r/min
Motor Power	~55 kW
Electrical System	440V 60Hz 3P

Source:

Temporary Offshore Crane – Conbit CK050F

Parameter	Value
Lifting capacity (platform/harbor)	9.7 tons
Lifting capacity (wave height ≤2.5m)	5 tons
Certification	ATEX (offshore/hazardous areas)
Special features	Disassembles into small components for container shipping

Source:

Compact Knuckle Telescopic Boom Crane – MAXTECH

Parameter	Value
Type	Space-efficient folding-arm design
Key features	High-performance lifting, marine-grade anti-corrosion treatment
Best for	Inland waterway transport, sea supply, underwater equipment deployment

Source:

4. Key Advantages

Advantage	Benefit
Space-efficient design	Folding arm extends and folds in confined spaces; ideal for narrow ship decks and cabins
High-performance lifting	Lightweight yet capable of lifting substantial masses; adapts to complex ship layouts
Marine durability	Special anti-corrosion treatment withstands seawater and harsh marine climate; excellent wind/wave resistance
Precision control	Minimizes pendulum effect during lifting; knuckle joint allows superior load control
Active Heave Compensation (optional)	Millimeter-accuracy for subsea construction and equipment recovery
Harsh environment resistance	Stable operation at wind speeds ≤20 m/s; special salt-fog corrosion resistant design

5. Applications

Industry	Typical Use	Key Benefit
Marine Engineering	Offshore platform equipment lifting, subsea pipeline laying, FPSO maintenance	Precision control in rough seas
Ports & Terminals	Container handling, bulk cargo transfer, ship supply	Fast, safe cargo handling
Ship Operations	Cargo deck lifting, lifeboat release, equipment maintenance	Compact design fits vessel decks
Offshore Oil & Gas	Deck crane replacements, maintenance, wireline services	ATEX certified, small footprint
Wind Energy	Offshore wind farm service, turbine maintenance	Active Heave Compensation
Urban Truck-Mounted	Narrow street deliveries, confined job sites	Space-saving foldable design

6. Key Technologies & Options

Technology	Function
Active Heave Compensation (AHC)	Compensates for vessel motion; lands loads on seabed with millimeter accuracy
AOPS/MOPS	Anti-two block and overload protection systems
Constant Tension (CT)	Maintains rope tension for offshore operations
ATEX Certification	Zone 1 and 2 execution for hazardous environments
Man-riding Application	Certified for lifting personnel
Winterization Package	Reliable performance in extreme cold
Emergency Operation System (EOS)	Backup operation during power failure
Data Logging	Records crane operational data
Remote Diagnostic	Remote troubleshooting support

7. Surface Protection Standards

Standard	Description
NORSOK M-501 system 1	Highest marine surface protection
ISO 12944 CX	Corrosion protection for high-corrosivity environments
Metalizing marine treatment	Optional - enhanced corrosion protection
Hot Dip Galvanizing	Optional - full galvanization
Ceramic coating / Stainless steel / Laser cladding	Special cylinder protection options

8. Buying Guide

Factor	Consideration
Lifting capacity required	Max weight at max radius
Working radius needed	Determines telescopic boom length
Mounting type	Deck / pedestal / truck
Operating environment	Marine (corrosion), offshore (AHC), hazardous (ATEX)
Certification required	BV, CCS, ABS, DNV, LR, RS
Power source	Electric / hydraulic / diesel-hydraulic
Personnel lifting	Need man-riding certification?

Key Questions to Specify

What is the main use scenario?
Maximum lifting weight?
Maximum working radius?
Working environment temperature and conditions?
Power supply type, voltage, frequency?
Special control requirements (remote control, etc.)?
Expected delivery timeline?
Certification body preference (BV/ABS/CCS/DNV)?

9. Delivery & Service

Item	Details
Lead time	30–90 days (custom configurations longer)
Shipping	Bulk vessel / Flat rack / Container
Warranty	12–15 months
Certification	BV, CCS, ABS, RS, DNV, LR (buyer's choice)
Inspection	3rd party load test certificate available
Installation	Engineer available for on-site installation guide
Support	24/7 online technical support

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