Portal Harbor Crane
Handle bulk cargo, steel, machinery and marine equipment from a rail-mounted slewing portal crane configured for the berth, vessel and lifting tool.
Select from cargo type and working radius together.
A portal harbor crane is suited to a multipurpose berth where a slewing jib reaches vessel holds and quay transfer points. Capacity changes with radius and attachment; a single headline tonnage cannot describe the safe working envelope.
Specify material density, moisture, grab deadweight and tonnes per hour.
Provide the heaviest piece, centre of gravity and hook path over the vessel.
Check maximum radius, under-hook height and laydown position.
Specifications for the Portal Harbor selection.
This crane is engineered for a specific berth. Ask for a radius-by-load chart for each hook, grab or spreader mode rather than assuming one fixed capacity applies across the entire outreach.
| Parameter | Reference selection range | Procurement check |
|---|---|---|
| Rated load and radius | Project-specific load chart | Quote hook and grab ratings at each required vessel and shore position. |
| Luffing / slewing envelope | Defined by vessel and transfer points | Show minimum/maximum radius, swing obstructions and safe set-down positions. |
| Hoisting height / lowering depth | Defined by vessel hold and quay level | Include hatch coaming, tide and below-quay lifting requirement. |
| Cargo attachment | Hook, grab or project tool | Include tool deadweight and bulk-material density in the capacity calculation. |
| Portal clearance / rail gauge | Matched to existing or proposed quay rails | Check truck, conveyor and rail vehicle passage beneath the portal. |
| Duty and throughput | From loads and cycles per hour | Use separate operating cases for bulk, breakbulk and project cargo. |
| Wheel loads / wind restraint | Calculated for final machine | Coordinate rail reactions and parked-wind tie-downs with the civil engineer. |
| Power / operator mode | Project-specific | Define supply, cabin or remote control, visibility and emergency systems. |
Map every cargo pick and set-down point.
The same load may be safe near the crane and unsuitable at maximum radius. Mark vessel holds, hatches, receiving hoppers, trailers and laydown areas on a berth plan before choosing the equipment.
Cargo and toolGive masses, dimensions, bulk density, grab capacity and rigging.
Working pointsMeasure radius and lift at each ship-side and land-side position.
Berth interfaceShow rail gauge, quay length, portal clearance, foundation and traffic lanes.
Operating targetState tonnes per hour, lift cycles, shifts and vessel turnaround goal.
Confirm radius-by-load ratings, rail reactions and parked-wind restraints.
Compare offers at the same radius and duty.
Require a load chart and complete handling package so each bid covers the actual cargo, tool, berth and acceptance conditions.
Require rated load by radius, hoisting envelope, portal clearance, rail reactions and wind parking.
Identify hoist, luffing, slewing and travel systems plus grab, hook or spreader as included.
Agree functional and load tests for each handling mode, commissioning and operator training.
Before you release a purchase order.
Use these questions to compare suppliers against the same technical and delivery scope.
Does the maximum crane capacity apply at every radius?
No. Compare the rated load chart at the farthest required pick and set-down point, including grab or rigging self-weight.
Can one crane switch between a grab and a hook?
Yes when both handling modes, tools, controls and their separate ratings are included in the engineered offer.
What is the minimum order?
Ask for one complete portal harbor crane or a berth package; confirm all cargo tools and site services in the quotation.
How are certificates and lead time handled?
Specify the destination documentation and acceptance tests; request a dated factory dispatch commitment after deposit and approved drawings, with shipping and site work separate.
Send the cargo list and berth plan.
Provide cargo types, maximum mass, bulk density where relevant, all required radii and lifting heights, vessel dimensions, rail gauge, quay capacity, duty and destination. Request a radius-by-load chart and complete attachment list with the offer.
Send your Portal Harbor crane enquiry ↗- Cargo and attachment list
- Loads at each radius
- Vessel holds and hatch dimensions
- Rail gauge and portal clearance
- Throughput and operating hours
- Quay capacity, climate and destination