Why Choosing the Right Crawler Crane Matters

Selecting a suitable crawler crane and configuration is an important part of planning an efficient lifting operation. An unsuitable crane may be unable to carry out the planned lifting operation within the required capacity, radius or configuration limits, potentially resulting in redesign, delays or the need for alternative equipment.

Crane selection affects lifting capacity, programme efficiency, site access requirements and the practical delivery of the operation. Early crane selection can reduce avoidable changes, delays and potentially prevent additional mobilisation requirements.

Understand the Lifting Requirements of Your Project

Load Weight

Accurate load information is essential when assessing crawler crane requirements. The total lifting requirement should account for the load itself together with relevant lifting tackle and accessories so the operation can be assessed against the crane’s configured capacity.

Lift Radius

Working radius is a key factor in crawler crane selection because available lifting capacity changes with radius and crane configuration. The required pick and placement positions should therefore be established alongside load weight and boom requirements before a suitable crane is selected.

Lift Height

The required lifting height influences boom length, configuration and working radius. Any structures or obstructions that the load must clear also need to be considered when assessing the required boom configuration.

Number of Lifts

The number, sequence and location of planned lifts can also influence crane selection and project planning. For example, a project may involve a single heavy component or multiple loads across several positions. Larger or more complex programmes may require different crane configurations or, where technically justified, multiple cranes.

Assess Site Conditions Carefully

Ground Conditions

Crawler tracks distribute crane loads across a relatively large contact area, but the access route and working area still need to be assessed against the loads imposed by the crane. Where required, suitable load-spreading measures, including crane mats, may form part of the planned setup, with temporary works provisions determined for the specific crane and site conditions.

Site Access

Site access is a key consideration when selecting a crawler crane. Depending on the crane and configuration, transport may involve several large vehicles, so the assessment should consider delivery routes, road restrictions, turning space and site entrances.

Space Restrictions

Available space needs to accommodate the crane configuration, boom and counterweight movement, assembly requirements, lifting area and any operational boundaries required for the planned work. Adequate working space is one of the site conditions that must be considered when planning and carrying out a lifting operation safely.

Understand Different Types of Crawler Cranes

Telescopic Crawler Cranes

Telescopic crawler cranes use nested boom sections that extend and retract to provide different boom lengths without assembling separate lattice sections. Their variable boom configuration can provide flexibility where lifting requirements change across a project or where access, assembly space and programme influence crane selection.

Lattice Boom Crawler Cranes

A lattice boom is assembled from modular steel sections to achieve the required configuration for the planned lifting operation. Lattice boom crawler cranes are well suited to major lifting operations requiring high capacities and substantial working radii, including infrastructure and wind-sector projects.

Review Crane Load Charts and Capacity Limits

Crane load charts set out rated lifting capacities for specific crane configurations, boom arrangements and working radii. They are used to assess whether the crane has sufficient capacity for the required load at the planned working radius and configuration. Available lifting capacity depends on factors such as working radius, boom arrangement and crane configuration, while ground conditions must separately be suitable for the loads imposed during the operation.

Evaluate Safety and Compliance Requirements

Crawler crane operations must meet applicable legal requirements, with relevant industry guidance and standards also considered. This can include the applicable parts of BS 7121 and the requirements of LOLER. Responsibility for lift planning, supervision and execution depends on the hire arrangement. Under a Contract Lift, Ainscough undertakes the agreed planning and management responsibilities, while under CPA Crane Hire, these responsibilities remain with the customer.

Common Mistakes to Avoid When Choosing a Crawler Crane

Early selection of a suitable crane and configuration can help avoid unnecessary changes, additional mobilisation and programme delays. Some of the most common mistakes that people make when choosing crawler cranes include the following:

  • Selecting a crane on maximum capacity alone rather than considering access and site conditions.
  • Failing to account for working radius, which can result in the required load exceeding the crane’s rated capacity for the planned configuration.
  • Underestimating ground and temporary works requirements, which can delay mobilisation while suitable support arrangements are established.
  • Overlooking site access restrictions, which may not allow large cranes to manoeuvre successfully on-site.
  • Engaging lifting specialists too late, reducing the opportunity to optimise crane selection, access, lift sequencing and other technical requirements during the earlier stages of the project.

Considering Hiring a Crawler Crane? Speak to Our Specialists Today

If you need a crawler crane for an upcoming project, Ainscough’s technical teams can assess crawler crane requirements against factors including load, working radius, crane configuration, access and site conditions. This technical input helps establish a suitable crane and configuration for the planned lifting operation.

Call our team today on 0800 272 637 or email us at info@ainscough.co.uk to discuss our lifting solutions. Alternatively, fill out our contact form and we will be in touch with a personalised recommendation.