Call Toll Free - 888-670-1195
2018 Skyjack SJ1056 Image
Stock Number: EQC012374
Make: Skyjack
Model: SJ1056
Year: 2018
2018 Skyjack SJ1056 Details
2015 Terex CTT 121A-5 TS16 Image
Stock Number: 600017
Make: Terex
Model: CTT 121A-5 TS16
Year: 2015
2015 Terex CTT 121A-5 TS16 Details
2007 Potain HDT80 Image
Stock Number: 600194
Make: Potain
Model: HDT80
Year: 2007
2007 Potain HDT80 Details
2013 Hyundai 110D-7E Image
Stock Number: EQU010604
Make: Hyundai
Model: 110D-7E
Year: 2013
2013 Hyundai 110D-7E Details
2012 Miller Big Blue 400D Image
Stock Number: 231276
Make: Miller
Model: Big Blue 400D
Year: 2012
2012 Miller Big Blue 400D Details
2008 Combilift C12000SL Image
Stock Number: EQU008108
Make: Combilift
Model: C12000SL
Year: 2008
2008 Combilift C12000SL Details
 
Comedil Self Erect Cranes

Comedil Self Erect Cranes

The tower crane's base is generally bolted to a large concrete pad that provides very crucial support. The base is connected to a tower or a mast and stabilizes the crane which is affixed to the inside of the structure of the building. Normally, this attachment point is to an elevator shaft or to a concrete lift.

The mast of the crane is normally a triangulated lattice structure that measures 0.9m2 or 10 feet square. Attached to the very top of the mast is the slewing unit. The slewing unit consists of a motor and a gear which enable the crane to rotate.

Tower cranes may have a max unsupported height of 80m or 265 feet, while the tower crane's maximum lifting capacity is 16,642 kg or 39,690 lbs. with counter weights of 20 tons. Additionally, two limit switches are used in order to make certain that the driver does not overload the crane. There is even another safety feature called a load moment switch to ensure that the operator does not exceed the ton meter load rating. Lastly, the maximum reach of a tower crane is 230 feet or 70 meters.

Due to their extreme heights, there is a science involved to erecting a crane. The stationary structure would first have to be brought to the construction site by using a huge tractor-trailer rig setup. Then, a mobile crane is utilized in order to assemble the machinery part of the crane and the jib. Afterwards, these parts are attached to the mast. The mobile crane then adds counterweights. Crawler cranes and forklifts could be some of the other industrial equipment that is utilized to erect a crane.

As the building is erected, mast extensions are added to the crane. This is how the crane's height could match the building's height. The crane crew utilizes what is known as a climbing frame or a top climber that fits between the top of the mast and the slewing unit. A weight is hung on the jib by the work crew so as to balance the counterweight. When complete, the slewing unit is able to detach from the top of the mast. In the top climber, hydraulic rams are used to adjust the slewing unit up an extra 20 feet or 6.1m. Next, the crane driver uses the crane to insert and bolt into position another mast part piece.

  • TCM LP Forklifts
    Propane Tank Rules The gas container, liquefied petroleum system or LP system is a collective term by OSHA that refers to the piping, regulators, hoses, regulators, fittings and valves. Depending on the capacity of the... More
  • Hyundai Outdoor Forklifts
    How to Use a Forklift Important equipment utilized to transport and lift different kinds of materials and heavy loads are forklifts. This material handling machinery is utilized every day in our society. Forklifts are found... More
  • Hyster Lifts
    Underneath the Hyster Company, you will find the strength of a large worldwide group who takes a serious approach to design and engineering processes, manufacturing their products and dealing with the supply chain. Hyster facilitates... More
  • TCM Pneumatic Tire Forklifts
    When it comes to maintaining the lift truck, it could be easy to overlook the simple yet essential tire. If you select the wrong tire, you could end up accidentally with a huge increase in... More
  • Komatsu Outdoor Forklift
    Forklifts are used in many kinds of industries. They are common features in mining operations, on construction sites and in a lot of warehousing facilities, ports, rail yards and shipping and receiving operations. Basically, a... More