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Types of Crane machine

Views: 0     Author: Site Editor     Publish Time: 2023-04-21      Origin: Site

Aerial

Aerial cranes or "sky cranes" are generally helicopters designed to lift large loads.Helicopters are able to reach and lift areas that are difficult to reach with traditional cranes.Helicopter cranes are most commonly used to lift loads onto shopping centers and high-rise buildings.They can lift air conditioners, cars, boats, swimming pools and other things within their capabilities.After natural disasters, they will also carry out disaster relief and clean up.During wildfires, they can still carry large buckets of water. water to put out the fire.Some sky cranes, mostly concepts, also use lighter-than-air aircraft, such as airships.

Climbing Crane:

Instead of setting up a large crane to build a wind turbine tower, a smaller climbing crane can help build the tower, use it to climb to the top, lift the generator casing to the top, install the rotor blades, and climb down.This has been introduced by Lagerwey Wind and Enercon.

Straddle Carrier:

Straddle carriers move and stack intermodal containers.  SACHMAN Crane machine-

Fixed:

These types of cranes trade mobility for the ability to carry larger loads, as well as the ability to reach higher heights due to increased stability, and are characterized by the fact that their main structure does not move during use.However, many can still be assembled and disassembled.These structures are basically fixed in one place.

Ring:

Ring cranes are among the largest and heaviest land-based cranes ever designed.Ring tracks support the main superstructure and can carry extremely heavy loads (up to thousands of tons).

Tower:

A tower crane is a modern form of a balanced crane that consists of the same basic components.Affixed to the ground on a concrete slab (sometimes attached to the sides of a structure), tower cranes often offer the best combination of height and lifting capacity and are used in the construction of tall buildings.The base is then attached to the mast, which provides height for the crane.Additionally, the mast is connected to the slewing gear (gears and motors) that allow the crane to rotate.There are three main sections on top of the slewing unit, they are: the long horizontal arm (working arm), the shorter jib and the operator cab.Optimizing the location of tower cranes on the construction site has a major impact on the material transportation costs of the project.The long horizontal jib is the part of the crane that carries the load.The balance jib carries a counterweight, usually a concrete block, while the jib suspends the load to and from the center of the crane.Crane operators either sit in a cab atop the tower, or control the crane by radio remote from the ground. In the first case, the operator's cab is usually located on top of the tower attached to the turntable, but can also be mounted on the boom, or halfway down the tower.The hook is operated by the crane operator using an electric motor, which steers the wire rope through a system of pulleys.A hitch sits on a long horizontal arm and is used to lift the load, which also contains its motor.To hook up and unhook the load, the operator usually works with a signalman (called a "dogger", "rigger" or "swamper").They are most often communicated by radio and always use hand gestures.A rigger or rigger directs the crane's lifting plan and is responsible for the safety of the rigging and load.

  • The height under the hook of the tower crane can reach more than 100 meters.

Components

Tower cranes are widely used in construction and other industries to lift and move materials.There are many types of tower cranes.Although the types are different, the main parts are the same, as follows:

  • Mast:The main supporting tower of the crane.It is made of steel truss sections joined together during installation.

  • Swing Gear:The swing gear is located on top of the mast.This is the engine that makes the crane spin.

  • Operator's Cab: On most tower cranes, the operator's cab is located directly above the slewing gear.It contains operating controls, load movement indicator system (LMI), scales, anemometer and more.

  • Jib:The jib or operating arm extends horizontally from the crane.A "luffing" jib is able to move up and down; a fixed boom has a rolling trolley that runs along the bottom to move the load horizontally.

  • Counterweight Arm:Supports counterweight, lift motor, lift drum, and electronics.

  • Hoisting winch:The hoisting winch assembly is composed of hoisting winch (motor, gearbox, hoisting drum, hoisting wire rope,brake), hoisting motor controller, platform and other supporting components.Many tower cranes have two or more speed transmissions.

  • Hook: A hook (or hook) is used to attach material to a crane.For jib cranes, it hangs from the top of the hoisting wire rope,and for hammerhead cranes, it hangs from the belly of the hoisting wire rope under the trolley.

  • Counterweight: Large, movable concrete counterweights are mounted on the rear of the counter to compensate for the weight of lifted goods and to maintain the center of gravity on the support tower.


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