Articulation must work across the complete delivery path
The drawing needs the parked truck, pickup load and final placement position in relation to walls, building projections and overhead restrictions. Load dimensions matter alongside mass. Include lifting accessories where they affect the manufacturer's rated-load assessment.
Repeated side deliveries need a range of pickup and placement positions assessed. A constrained placement also needs the approach and return path shown. The crane, attachment and suspended load must all complete that movement within the permitted envelope, even if the final point appears reachable.
The KEEYAK knuckle-boom product page provides configuration references. A comparison between maximum-lift labels needs to be resolved into identified crane models and installations before it can answer the delivery requirement.
Scroll horizontally to view all columns.
| Delivery input | Why it changes the proposal | Evidence to request |
|---|---|---|
| Load mass, dimensions and accessories | Changes the rated-load and clearance assessment | Defined load case on the actual chart |
| Pickup, travel path and placement | Articulation must cover the full movement | Marked path with obstructions and working positions |
| Mounting position and support area | Changes vehicle layout and permitted working conditions | Installation drawing and applicable support arrangement |
| Normal cargo consignment | The truck must carry the goods as well as the crane | Remaining deck space, completed mass and axle assessment |
Read the chart for the configuration being quoted
The applicable chart belongs to the exact crane, boom equipment and setup conditions being offered. Marked work positions, deductions and restrictions should accompany it. A family brochure or chart for another boom arrangement cannot settle the quoted installation.
The load-chart guide explains the reading process. Keep chart radius, reach and the site-sketch reference points consistent. Do not assume the distance from a convenient point on the truck is the radius used by the chart.
Hiab's knuckle-boom range distinguishes applications, models, controls and attachments within its own products. A KEEYAK proposal needs similarly identifiable choices. 'Knuckle boom' alone leaves much of the equipment specification open.
Preserve the cargo capacity the delivery business needs
Crane lifting capacity and road payload are separate ratings. The transport assessment needs the proposed crane, subframe, supports, body and normal carried equipment installed, then the remaining cargo allowance and each axle checked at the intended cargo positions.
A crane can cover a lift while leaving too little usable deck for the normal consignment. Its stowed position, deck access and installation space should be checked against the pallet, bundle or item dimensions. Loading the cargo and unloading it need to work on the same finished truck.
If behind-cab and rear mounting are both proposed, compare them against the same deliveries. The mounting-position guide covers their layout implications. Ask for the exact support and working-sector conditions associated with each offer.
Set out the installation and handover responsibilities
A complete-truck purchase and a crane supplied to another installer assign different responsibilities. The quotation should name who approves the receiving chassis, mounting, power and hydraulic connections, final loading assessment and inspection. Controls, attachments, accessories and exclusions also need to be identified.
The handover file should tie equipment identity, charts, manuals, commissioning and inspection records to the unit supplied. Actual equipment and site assessment remain with the responsible lifting specialists. A convenient demonstration load on video does not verify every delivery case in the purchase brief.
Articulated crane purchase questions
Does a knuckle-boom crane always handle obstacles better?
Its joints can provide another approach, but the exact path, clearance and capacity still need checking. Compare it with a telescopic option on the same site sketch using the boom-type guide. Avoid a universal winner when the required movement is still undefined.
Can a 10 t maximum-lift model place 10 t at the delivery radius?
Only the applicable model chart and conditions can answer that. Send the required radius, position and complete load case. The catalog maximum alone does not establish the available load there.
What should be included when asking for a crane-truck price?
A price request needs the chassis or receiving-chassis details, exact crane and boom equipment, mount, supports, cargo body, controls and accessories. Delivery load, destination and acceptance scope let the supplier quote lifting and road transport as one purchase.
Sources and applicability
KEEYAK catalog fields considered in this guide: articulation, working radius, load chart, outrigger spread, mounting position, cargo deck. Confirm the selected chassis, equipment and signed specification. Catalog options are not results from a vehicle test.
Sources checked:
Articulated-crane manufacturer reference. The exact offered model, load chart and completed installation control lifting capability.
Sources checked: