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What is the maximum angle for a crane boom?

Views: 0     Author: Site Editor     Publish Time: 2024-03-20      Origin: Site

A pivotal element of any lifting operation is the jib of the crane, as it determines the outreach and the lifting capacity of the crane. The maximum angle in which a crane boom can be operated highly relies on the crane’s type or model, the design and type of the boom itself, including lattice booms, telescopic booms, and articulating booms. The present text intends to expound on the scope of the crane boom angles, limitations and necessary safety measures.


Lattice Boom Cranes

Lattice booms are used extensively in diverse sectors like construction, maritime and oil and gas. The unique structure of the boom allows it to be extended or retracted, thus enabling adjustment of the boom at different angles. Lattice booms are typically made of interconnected steel beams that form a lattice shape. Such a design ensures that the crane’s steel structures do not collapse as they hold heavy weights yet maintain their weight reasonably low.

Normally, lattice boom cranes have maximum angle ranges from 70° to 80°. This is determined so that there will be no reduction in lifting capacity at extreme angles as well as keeping stability during operation. Lattice boom cranes are commonly employed for heavy lifting where there is need for high load bearing capacity coupled with stability such as when building large structures or handling large loads.

Telescopic Boom Cranes

Telescopic boom cranes are tubular sections out of which the various nested sections can be extended or retracted to provide the boom required length. These crawlers deliver two main benefits - they enable quick redirection of the cranes upon detection of any unwanted movement on the construction site; and they provide flexibility that is incomparable to that of the lattice boom cranes.

Such telescopic booms are often formed out of aluminum or steel alloys to protect themselves against the enormous weight and the high strength.

While there is no exact telescopic boom crane the bracket angle, it usually varies between 70 and 85 degrees. The capacity lies in the zone between the start of this plunge and the end of that plunge for the greatest load safety and stability.

Telescopic boom cranes are a type of crane which can be transported to a construction site or used in utility work and other job sites where maneuverability and reach are crucial. Their telescopic system flexibility is therefore preferred by many companies that would like to save on the fact that they are easily transported and set up.

Articulating Boom Cranes

Since knuckle boom cranes feature an articulated arm which includes several sections interconnected through hydraulic cylinders or knuckle joints, they represent a type of boom crane.

Due to its special design, the boom can be bent and come beneath the obstacles that create the tight spaces or are with the complicated hindrances. This is the advantage of using Articulated Booms, and they are ideal for these operations. Arcs of articulation are commonly built with steel or aluminum which in turn provides for their strength and flexibility.

Boom cranes with articulated boom produce extraordinary reach and functionality, however, it is critical to stick to the manufacturer's suggested angle the boom is supposed to secure stability and safety.

The full range of telescoping boom cranes for articulating can be different for particular models and designs, the minimum angle being 125 degrees, and the maximum could be 180 degrees. They possess the ability to expand and rotate at different points. This attribute makes them good in scenarios like tree trimming, handling material in confined places and partaking in construction work with several obstacles.


In the end, designing the proper approach for a crane boom angle is important for both safe and smooth lifts. Lattice boom cranes usually have the capacity to pitch at between 70 and 80 degrees, telescopic boom cranes can pitch from 70 to 85 degrees and articulating boom cranes could be able to pitch at an angle of up to 125 to 180 degrees

Caring to the recommendations of the crane manufacturer, noticing the load capacity, stability, suitable personnel's training and scheduled maintenance is a must for safe crane operation under different boom angles. The safe manipulation of crane booms can be achieved by the operators following the industry rules and regulations and by placing emphasis on working safely.

Xuzhou BOB-LIFT Construction Machinery Co., Ltd. is a high-tech enterprise specializing in the design, development, manufacture and sales of truck-mounted cranes. With a factory area of over 37,000 square meters, the company's main products include SQ08-SQ55 series of folding and telescopic boom truck-mounted cranes and related variants such as truck mounted crane, marine crane, pickup crane.




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