Not every wall is suitable for mounting a wall-mounted jib crane. Whether a wall can support the crane depends on the construction, the material, and the load-bearing capacity of the wall. Solid concrete or steel generally provides sufficient support, while lightweight partition walls or poorly founded walls are unsuitable in most cases. In this article, we answer the most frequently asked questions about wall mounting a jib crane, from suitable constructions to costs and inspection.
Which wall constructions are suitable for a wall-mounted jib crane?
A wall-mounted jib crane can be installed on solid concrete walls, reinforced concrete, steel structures, and sturdy masonry walls with sufficient thickness and foundation. These constructions provide the structural resistance needed to absorb the static and dynamic forces of a jib crane. Lightweight system walls, plasterboard walls, and non-load-bearing partition walls are unsuitable in virtually all cases.
The suitability of a wall construction is determined by two factors: the material and the way the wall is founded. A thick concrete industrial wall that stands directly on a stable foundation is ideal. Masonry can be usable in some cases, but always requires a detailed assessment of the mortar quality, the thickness of the wall, and the condition of the joints.
Steel structures, such as columns and frames in industrial halls, are also excellently suited for attaching a wall-mounted jib crane. With steel, the load-bearing capacity can be calculated accurately and the connection points can be determined precisely. This makes steel the preferred choice for wall mounting a crane system in many industrial environments.
How is the load-bearing capacity of a wall determined for crane installation?
The load-bearing capacity of a wall for crane installation is determined by a structural engineer based on the material properties, wall thickness, foundation, and the expected load of the crane. This includes both the static load (the weight of the crane itself) and the dynamic forces that arise during lifting and slewing of loads.
The assessment takes into account, among other things, the following aspects:
- The type and quality of the wall material (concrete, masonry, steel)
- The thickness and height of the wall at the attachment point
- The quality and condition of the foundation
- The lifting capacity and outreach of the jib crane to be installed
- The angle and direction of the forces the crane exerts on the wall
Based on this data, a structural engineer prepares a calculation that demonstrates whether the wall can handle the load. Without this calculation, a wall-mounted jib crane may not legally be put into service in the Netherlands. Skipping this step is not only dangerous, but also contrary to the applicable safety standards.
What are the alternatives if a wall is not suitable?
If a wall is not suitable for mounting a wall-mounted jib crane, several alternatives are available. The most commonly used solutions are a freestanding column (floor-mounted jib crane), a roof beam attachment, or a fully overhead crane system that operates independently of the walls.
Freestanding column or floor-mounted jib crane
A floor-mounted jib crane is attached to a steel column that is founded directly in the floor. This makes the crane completely independent of the surrounding walls. It is a flexible solution that can also be placed in the middle of a workspace. However, this variant requires a sturdy concrete floor with sufficient thickness for the foundation of the column.
Overhead crane or gantry crane
When a greater lifting capacity or a larger working range is needed, an overhead crane or gantry crane offers a suitable alternative. These systems travel on rails mounted on the structure of the hall, distributing the load over multiple points. This type of crane system is particularly suitable for situations where wall mounting is technically not feasible.
Which attachment methods are used for wall mounting?
For wall mounting a jib crane, anchor bolts, chemical anchors, and through-bolts are primarily used. The choice of a specific attachment method depends on the wall material, the wall thickness, and the forces the crane exerts on the attachment points.
For concrete walls, chemical anchoring is a widely used and reliable method. A hole is drilled in the concrete, filled with a special injection mortar, and then fitted with a bolt. After curing, a connection is created that is resistant to high tensile and shear forces.
For steel structures, the mounting plates are directly welded or bolted to the steel structure. This provides a rigid, well-calculated connection that is easy to inspect. Stricter requirements apply to masonry: through-bolts or steel profiles are generally used here to distribute the forces over a larger surface area, preventing local overloading of the masonry.
What does the installation of a wall-mounted jib crane cost on average?
The costs for installing a wall-mounted jib crane vary greatly and depend on the lifting capacity of the crane, the complexity of the attachment, the condition of the wall, and the required structural modifications. A simple installation on a suitable concrete wall is generally less costly than a situation where reinforcements or special anchors are needed.
The following factors play a role in determining the total costs:
- The lifting capacity and outreach of the jib crane
- The costs for the structural assessment and calculation
- Any structural reinforcements to the wall
- The type of fastening material and the required quantity
- The labour costs for installation and electrical connection
- The mandatory inspection after installation
For a realistic cost estimate, it is advisable to engage a specialised crane builder who assesses the situation on site. Based on an inspection and a technical consultation, an accurate quote can be drawn up that matches the specific situation and requirements.
How does the inspection and maintenance process proceed after installation?
After the installation of a wall-mounted jib crane, an official inspection is mandatory before the crane may be put into service. Subsequently, an annual inspection is legally required to ensure the safety and proper functioning of the crane system. This applies to all lifting and hoisting installations that are used professionally in the Netherlands and Belgium.
The initial inspection after installation includes a load test in which the crane is tested at maximum lifting capacity. All attachment points, the electrical installation, the safety provisions, and the mechanical components are also checked. Only after an approved inspection does the crane receive an inspection certificate and may it be put into operation.
The annual maintenance inspection focuses on wear of moving parts, the condition of the wall attachment, the functioning of the brake, and the electrical components. Regular maintenance extends the service life of the crane, prevents unexpected breakdowns, and ensures that the installation continues to meet the applicable safety standards.
How BKRS helps with the installation of a wall-mounted jib crane
We at BKRS guide the entire process of the wall-mounted jib crane through to the annual inspection, from the initial assessment of the wall construction to delivery and maintenance. As an accredited inspection company and specialised crane builder with more than forty years of experience, we offer a complete solution with a single point of contact. In concrete terms, this means:
- Technical assessment of the wall and structural calculations
- Advice on the most suitable attachment method for your situation
- Design and construction of a custom-made crane system
- Professional installation by certified employees
- Mandatory inspection after installation and annual inspections
- Ongoing maintenance and rapid service in the event of breakdowns
Whether your wall is suitable for direct wall mounting or an alternative solution is needed, we are happy to think along with you. View our services and crane solutions or contact us directly for a no-obligation consultation.
Frequently Asked Questions
Do I need a permit to install a wall-mounted jib crane?
In most cases, no building permit is required, but a structural calculation and an official inspection after installation are mandatory. Depending on the location and type of building, additional requirements may apply from the municipality or the occupational health service. Always consult a specialised crane builder to determine which regulations apply to your situation.
Can an existing wall be reinforced if it has insufficient load-bearing capacity?
Yes, in some cases it is possible to reinforce a wall with steel profiles, additional anchor plates, or a supplementary concrete construction. Whether reinforcement is feasible and cost-efficient depends on the current condition of the wall and the required lifting capacity. A structural engineer can assess whether reinforcement is a realistic alternative compared to a freestanding solution.
How long does the installation of a wall-mounted jib crane take on average?
A standard wall installation typically takes one to two working days, depending on the complexity of the attachment and the preparation of the wall. If structural modifications or reinforcements are required, the lead time may increase. Also factor in time for the mandatory inspection before the crane may be put into operation.
What should I do if my crane exhibits abnormal behaviour during use?
Switch off the crane immediately and take it out of service until a certified technician has inspected the installation. Abnormal behaviour, such as unusual sounds, vibration in the attachment, or reduced braking performance, may indicate wear or a loosening anchor. Do not wait until the next annual inspection, but contact your maintenance service immediately.