PMA MRN 70-B2
Supplier sheet: 7 t-m gross moment · 7.0 m maximum hydraulic outreach
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COMPACT FOLDING GEOMETRY
Knuckle-Boom Marine Cranes for Compact Deck Stowage
A knuckle-boom crane uses articulated boom sections to combine working outreach with a compact folded arrangement. ERBA Marine reviews every required load and radius together with the folded envelope, vessel hydraulics, controls, deck interface and documentation needs.
No capacity, reach or model availability is inferred from an image. Current load charts and project scope are confirmed in writing.
Articulated reach with a defined folded envelope
Marine-only project imagery is used for configuration guidance; unrelated equipment data is excluded.
Marine-only review
Only marine-crane families, vessel applications and marine-context media are used.
Load at outreach
Selection starts from each required load and horizontal radius, not a tonnage headline alone.
Project interfaces
Deck, power, controls, stowage and documents are reviewed from verified project data.
Written confirmation
Final configuration, scope and applicable warranty route are stated in ERBA Marine’s quotation.
APPLICATION AND CONFIGURATION ROUTES
Where knuckle-boom marine cranes may fit.
These are project and selection routes, not fixed model or capacity claims.
Fishing & Workboat Handling
Deck equipment and stores handling where the folded position and active work sector must be checked.
- Load at each radius
- Working and folded clearances
- Hook or winch arrangement
Shipyard & Service Vessels
Project lifting around equipment, access routes and restricted deck sectors.
- Deck-obstruction map
- Slew and control positions
- Foundation and hydraulic interfaces
Yacht Deck Handling
Compact articulated arrangements reviewed against finish, stowage and equipment-handling needs.
- Total lifted mass
- Folded envelope
- Control and power integration
Project & Offshore Applications
Non-standard duties that require a documented environmental and project-specification review.
- Duty cycle and design basis
- Client, flag or class requirements
- Required drawings and records
SELECTION PRIORITIES
The folded geometry is part of the selection.
Required articulations, extensions, hook path and deck obstructions must be defined before a useful configuration can be proposed.
Working geometry
State the load and horizontal radius for every required lift case.
- Minimum and maximum outreach
- Lift height and depth
- Slew sector and hook path
Stowed geometry
Provide the permitted folded width, height and length, plus access for inspection.
- Deck and overhead clearances
- Transport and installation route
- Maintenance access
Controls and hydraulics
Control position, remote requirements and vessel power interfaces are reviewed together.
- Hydraulic pressure and flow
- Electrical supply
- Winch, hook and emergency-stop needs
Foundation and documentation
Foundation loads, structural responsibility and the required drawing or approval route must be agreed before supply.
- Foundation and reaction data
- Vessel-side structural verification
- Required drawings and records
TECHNICAL ENQUIRY CHECKLIST
What to send for a useful marine-crane review.
Complete load, geometry, vessel, interface and document information helps ERBA Marine identify missing inputs and prepare a more accurate technical and commercial response.
Load, vessel and operating duty
- Application, vessel type, name and length
- Newbuild, retrofit, replacement or parts requirement
- Required load at every required horizontal outreach
- Lift height above deck and depth below deck
- Required slew sector, hook path and deck obstructions
- Stowed envelope, access route and maintenance clearance
- Deck location, foundation or pedestal information and drawings
Deck, power, controls and documents
- Available hydraulic pressure and flow and electrical supply
- Local, remote, winch, hook and integration requirements
- Duty cycle, operating environment and project design basis
- Flag, class, client specification and document requirements
- Delivery location, schedule, plans and clear photographs
- Required folded width, height and length
- Required articulations or extensions and the intended work sequence
PROJECT PROCESS
A documented route from lifting duty to coordinated supply.
Marine-crane selection benefits from explicit load cases, interface checkpoints and written scope confirmation.
1. Send the duty data
Share load at each outreach, vessel and deck details, stowed envelope, power, controls and required documents.
2. Clarify interfaces
ERBA Marine identifies missing inputs and coordinates technical clarification for the intended crane family and project.
3. Confirm the proposal
The selected configuration, current load chart, interfaces, documentation, scope, price and delivery are confirmed in writing.
4. Coordinate supply
ERBA Marine remains the customer-facing contact through the supply scope stated in the quotation.
Important: Final capacity, outreach, dimensions, weight, materials, coating, controls, hydraulic or electrical interfaces, documents, applicable warranty route, price, delivery and any installation or commissioning scope are confirmed only in ERBA Marine’s written quotation.
MARINE-ONLY PROJECT EVIDENCE
Marine crane installations and application references.
These curated manufacturer-source images show marine or vessel contexts. The visible arrangement does not establish a model, rating, certification or included project scope.
OFFICIAL MANUFACTURER DEMONSTRATIONS
See marine-crane projects and working arrangements.
Each video is loaded through a native Elementor video widget with a local overlay. Exact crane configuration, load chart, controls and project documentation are confirmed for the selected supply.
Knuckle-boom marine crane demonstration
Manufacturer project demonstration. Current specification and project scope require written confirmation.
Knuckle-boom marine-crane project demonstration
Manufacturer project demonstration. Current specification and project scope require written confirmation.
Offshore-application knuckle-boom crane demonstration
Manufacturer project demonstration. Current specification and project scope require written confirmation.
Manufacturer source and ERBA Marine coordination
Ozuyan/Puma states that its lifting-equipment manufacturing experience dates to 1966. ERBA Marine manages the customer’s technical enquiry, clarification and supply route from Dubai for UAE and GCC projects. Final configuration, load chart, deck interface, controls, documentation and applicable commercial scope are confirmed in writing.
FREQUENTLY ASKED QUESTIONS
Knuckle-Boom Marine Cranes FAQs
Practical answers for selection, replacement and project planning.
Its articulated geometry can support a compact folded arrangement and varied hook positions. The benefit depends on the actual deck, outreach and stowage plan.
Provide permitted folded length, width and height, nearby obstructions, access routes and maintenance clearance.
List each lifted load together with its required horizontal radius from the crane centreline, plus lift height or depth and working sector.
Yes, as project options. Compatibility, capacity, protection and included scope must be confirmed for the selected crane.
It can be reviewed from verified dimensions, drawings and structural information. Suitability must be confirmed by the responsible vessel or structural party.
Provide the available deck or pedestal drawings, structural constraints and the client, flag or class documentation requirements. ERBA will confirm the available manufacturer data for the selected configuration; vessel-side structural approval remains with the responsible party.
PROJECT-SPECIFIC ENQUIRY
Request a Knuckle-Boom Marine Cranes review from ERBA Marine.
Send the strongest available load, outreach, deck, power, control and documentation information. ERBA Marine will identify missing data before quotation.
- Attach deck plans, crane drawings, load charts and clear photographs.
- State every required load together with its horizontal radius.
- Confirm the vessel power interfaces and stowed-space limits.
- Final configuration and scope are confirmed in writing.
Send Knuckle-Boom Requirement
Fields marked * are required. PDF drawings, load charts and clear photographs are strongly recommended. Use a secure transfer route for CAD or archive files.
Your technical and contact information is sent only to ERBA Marine’s approved website enquiry recipients for follow-up.
Explore related marine-crane guidance
Puma PMA marine model reference
An English ERBA Marine FZE overview of eight supplied PMA folding-boom marine-crane sheets, from PMA 70-B2 to PMA 300-B3. It is a starting point for a project-specific review, not a rated load chart.
Download PMA model reference (PDF)Supplier-sheet gross moment and maximum outreach are not safe working loads. ERBA Marine will confirm the current chart for your selected crane and required radius.
Individual English downloads
PMA Marine model sheets
Explore eight Puma PMA MRN marine-crane references. Each one-page English sheet is prepared by ERBA Marine FZE for early project discussion and can be downloaded beside its model.
PMA MRN 80-B2
Supplier sheet: 8 t-m gross moment · 7.0 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFPMA MRN 100-B2
Supplier sheet: 10 t-m gross moment · 7.4 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFPMA MRN 120-B3
Supplier sheet: 12 t-m gross moment · 9.3 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFPMA MRN 150-B2
Supplier sheet: 15 t-m gross moment · 7.4 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFPMA MRN 180-B3
Supplier sheet: 18 t-m gross moment · 9.3 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFPMA MRN 250-B3
Supplier sheet: 25 t-m gross moment · 9.3 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFPMA MRN 300-B3
Supplier sheet: 30 t-m gross moment · 9.3 m maximum hydraulic outreach
DOWNLOAD ENGLISH PDFSelection note: Gross lifting moment is not the safe working load at maximum outreach. These are supplier-sheet references, not approved load charts. Ask ERBA Marine for the current configuration-specific chart, foundation data and project documents before selecting a crane.