A warehouse crane should be selected around the loads it will lift and the route those loads need to travel. Maximum capacity alone is a poor guide: a crane may be strong enough but unable to reach a storage position, clear the building’s services or keep pace with the work. Start by documenting load weights and dimensions, lifting frequency, pick-up and drop-off points, and the space available above and around them. Then compare crane configurations, building requirements, safety controls and whole-life costs. This sequence helps identify a system that supports the actual workflow without paying for capacity or features the operation does not need.
Before asking suppliers to recommend equipment, describe what the crane must lift. “Pallets” or “heavy components” is not enough: weight, shape, balance and handling points all affect the choice of hoist and lifting accessories.
Record the heaviest load that the crane is expected to handle, but also note the common load and any occasional loads that are genuinely part of the work. Include the weight of slings, lifting beams, grabs or other attachments in the load calculation, and confirm with the crane supplier or engineer how each item is treated in the system’s rated capacity. A load that is within the stated limit when considered alone may exceed it once handling equipment is added.
These details help determine more than capacity. The crane’s hoist, trolley, bridge or travel system, controls and duty rating all need to suit the intended work. Requirements also depend on the operating environment, such as dust, moisture or temperature, so include relevant site conditions in the brief.
Different crane arrangements serve different coverage areas. The best fit depends on the route, the building and whether lifts happen at one station, along a fixed path or across a broader work area. The options below are starting points for discussion, not substitutes for a site-specific design.
| Configuration | Coverage and support | Often considered for | Planning constraint |
|---|---|---|---|
| Overhead bridge crane | A bridge travels along runways, with a hoist moving across the bridge. Runways may rely on building structure or separate supports. | Moving loads across a defined rectangular work area. | Needs suitable runway support, headroom and clear travel paths. |
| Gantry crane | A bridge is supported by legs, with the arrangement and travel path set by the design. | Work areas where a suitable overhead runway is unavailable or a separate support structure is being considered. | Legs and any floor-level travel system can affect access and traffic routes. |
| Jib crane | A hoist travels along a projecting arm that serves a local work zone. | Repeated lifts at a workstation, machine or loading point. | Coverage is local; the arm’s movement and support need to suit nearby obstacles. |
| Monorail or workstation crane | A hoist follows a fixed track or a purpose-designed local system. | Repetitive transfers along a set route or handling within a defined station. | A fixed route may not serve changing destinations or wider areas well. |
An overhead bridge crane can suit a workflow that needs movement in two directions within its travel area, but its usefulness depends on where the runways can go and what lies beneath them. A jib crane may be more appropriate when a specific workstation needs regular lifting and broader coverage would add little value. A monorail can support a repeatable transfer, but it is less adaptable if loads need to reach several points off its track.
Gantry arrangements can be considered where overhead building support is unsuitable, but their legs and travel path must be assessed against vehicles, walkways, doors and floor space. Do not choose a configuration from its label alone. Ask for a layout showing the proposed crane’s coverage, limits of travel, support arrangement and relevant clearances.
A crane should fit the material flow, not create a separate movement system that competes with it. Mark each lift’s origin and destination on a warehouse plan: receiving, inspection, storage, production or packing, and dispatch, as applicable. Identify where loads are staged and where other equipment, staff or vehicles operate.
Then trace the complete lifting path, including the approach to the load, the height needed to clear obstacles, and the set-down position. A crane that can reach a storage bay may still be unsuitable if the load cannot be turned, raised or lowered safely at that point. Check whether the hook can approach the pick-up and drop-off locations closely enough for the intended task.
Pay particular attention to interfaces with storage. Rack beams, uprights, stored goods and aisle edges can restrict hook access or load movement. Long items may need more turning space than their footprint suggests. If a crane and forklift are expected to serve the same zone, define how their routes and working areas will be managed rather than assuming they can operate around each other.
This route review can reveal that the issue is not a shortage of lifting capacity. The bottleneck might be a poorly placed staging area, a narrow approach to racking or a hand-off that forces loads to wait. Changing the workflow or relocating a drop-off point may be worth assessing alongside the crane design.
Do not assume an existing warehouse can support a new crane simply because it has beams, columns or an open ceiling. Runways, supports and foundations must be assessed for the proposed system and its loads by appropriately qualified professionals. A crane supplier’s equipment proposal and a building’s structural suitability are related, but they are not interchangeable checks.
Survey the available vertical space as well as the floor plan. Headroom, hook approach, lift height and the space needed to raise a load can limit whether the crane can serve a location. Also identify roof structure, lighting, fire protection, ventilation, cable routes and other services that could obstruct installation or operation. The crane may need to coexist with these systems without blocking access for maintenance or compromising other warehouse functions.
For a gantry or a floor-supported jib arrangement, the support and floor or foundation requirements also need to be checked. If the crane will travel, the route and any changes in floor level or access restrictions should be part of the assessment. Get a site survey before fixing the equipment layout; relying on drawings that do not reflect current conditions can lead to costly design changes.
Safe use depends on the complete lifting operation: equipment, load, operator, surroundings and procedures. A crane selection brief should state how loads are attached, how the operator will see the lift, how people will be kept clear of hazardous areas, and what happens when a load cannot be positioned as planned.
Choose controls to suit the layout and the operator’s view of the work. The right arrangement depends on the crane configuration, lift locations and site conditions. Discuss visibility, communication, emergency stopping and any operating limits with the equipment supplier and competent safety or engineering advisers. Safety features such as limit switches or overload protection may be relevant to a design, but their selection and suitability should be confirmed for the specific system rather than assumed from a generic checklist.
Allow for operator instruction, safe lifting procedures, inspections and maintenance before commissioning. Assign responsibility for keeping equipment records and reporting faults, and consider how routine servicing can be carried out without disrupting warehouse operations. For a New Zealand site, confirm the applicable workplace health and safety, building and engineering requirements with competent local professionals; do not rely on a supplier’s capacity description as proof that the installation or operating plan is compliant.
The equipment quote is only one part of the investment. Depending on the design and site, the project may also involve runway or support work, foundations, electrical supply, controls, installation, commissioning, operator training and changes to the warehouse layout. Ask for the boundaries of each quote to be clear so that required work is not missed or counted twice.
Consider operating and maintenance needs as well as the initial installation. A system with more capacity or coverage than the workflow requires may add cost without resolving the actual bottleneck. On the other hand, a low-cost arrangement that cannot reach key pick-up points or handle the expected duty can create extra moves, delays or a later replacement project.
Compare proposals against the same load profile and route plan. Ask each supplier to identify assumptions, exclusions, the proposed duty basis, required building work, maintenance expectations and any limits on the crane’s usable area. If a forklift, hoist or another handling method is being considered instead, compare it against the same tasks, space constraints and safety arrangements—not just the purchase price.
Give suppliers the same information and ask them to show how their proposed system serves the actual route. A useful proposal should make clear what it can lift, where it can travel, what site work is required and which assumptions still need confirmation.
Begin with the heaviest load the crane is genuinely expected to lift, then account for the lifting accessories and any attachments used with it. Confirm with the supplier or engineer how the rated capacity applies to the proposed configuration and duty. Do not select capacity from the product name or the load weight alone.
It may, but the crane’s hook approach, load dimensions and travel path must suit the rack layout. Check clearances around beams and uprights, as well as how goods will be placed and removed. The racking and crane should be assessed as parts of the same handling workflow.
A jib crane is worth considering when lifting is concentrated at one workstation or a small service area. It may avoid the need for broad coverage, but it will not serve distant locations beyond its designed working area. If loads move between multiple points, map those destinations before choosing a local crane.
Not always, but the existing structure, floor or foundations must be checked against the proposed arrangement. Runways, supports and clearances can require changes even when the building appears suitable at first glance. A site survey and engineering assessment establish what work is needed.
Provide the load profile, lifting accessories, duty pattern, pick-up and set-down points, required coverage, lift height and site conditions. Include a layout showing racking, services, walkways, vehicle routes and staging areas. This lets suppliers compare options against the same operational requirements and identify assumptions that need follow-up.
The most reliable warehouse crane decision starts with a documented load and route, then tests each configuration against the building, workflow and operating plan. Before approving a proposal, confirm its capacity basis, usable coverage, structural requirements and whole-life costs with the relevant supplier and competent professionals.
