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

Usually, the mast is a triangulated lattice structure measuring 10 feet square or 0.9m2. The slewing unit is connected to the very top of the mast. The slewing unit consists of a motor and a gear that enable the crane to rotate.

Tower cranes may have a max unsupported height of 80m or 265 feet, while the minimum lifting capacity of a tower crane is 16,642 kilograms or 39,690 pounds with counter weights of 20 tons. In addition, two limit switches are utilized in order to ensure the driver does not overload the crane. There is even one more safety feature called a load moment switch to make certain that the driver does not exceed the ton meter load rating. Finally, the maximum reach of a tower crane is 70 meters or 230 feet.

There is certainly a science involved with erecting a tower crane, especially due to their extreme heights. First, the stationary structure has to be brought to the construction location by using a big tractor-trailer rig setup. After that, a mobile crane is used in order to assemble the machine portion of the jib and the crane. These parts are then connected to the mast. The mobile crane then adds counterweights. Forklifts and crawler cranes can be some of the other industrial machines that is utilized to erect a crane.

When the building is erected, mast extensions are added to the crane. This is how the crane's height can match the building's height. The crane crew uses what is known as a top climber or a climbing frame that fits between the top of the mast and the slewing unit. A weight is hung on the jib by the work crew in order to balance the counterweight. Once 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 additional 6.1m or 20 feet. After that, the crane driver uses the crane to insert and bolt into place another mast part piece.

  • Raymond Reach Forklifts
    Raymond knows what it takes in order to be productive and their reach trucks proudly deliver every day. These machines are designed for excellent operator comfort in mind and this really enhances overall productivity. Reach-Fork... More
  • Kalmar Outdoor Forklift
    The intermodal handling equipment engineered and designed by the company Cargotec is commonly utilized all around the world. By definition, an intermodal terminal is a link between seaport and railway or between road and railway.... More
  • Comansa Construction Cranes
    Linden Comansa makes a variety of cranes on the market these days. They offer a different modular design of their structural parts, making this family of cranes able to provide some benefits over competitors. The... More
  • JLG Knuckle Boom Lift
    Turn the Corner on Productivity JLG's E Series boom lifts are environmentally friendly equipment that also provide industry leading performance. To best suit your particular work environment, you are able to choose amongst 3 platform... More
  • Taylor Dual Fuel Forklifts
    Forklift Tank Safety The propane powered lift truck is amongst the most common types of forklifts. These machinery are powered by propane, which come with some considerations that must be accounted for. It is vital... More