MDT249J12 Tower Crane Lease Rent Hire

MDT249J12 Tower Crane Lease Rent Hire

Series , Luffing jib Crane, Topkit tower crane, Hammer head tower crane, Topless tower crane, Flat top tower crane,

Model,

Jib length,   m

Max load,   Ton

Tip load,    Ton

Type, Stationary , Inter climbing ,Travelling,

And other Famous brand, Model ,  Depend on the brand , Model Ability , Year , Height and etc u want.

We have large units store.  From 6Ton to 20Ton. Store and Service all over the world.

Mean time , We supply all the Spare Parts U may need as follow,

Masts Section ,  Anchor Frame, Collar ,Tie , Fixing angle , Cabin, Hoist mech. Trolley mech. Luffing Mech. Slewing Mech. Pulley and etc.

MDT249J12 Tower Crane Lease Rent Hire

Tower Crane Knowledge sharing：

Analysis of the structure of the hydraulic system of the tower crane

Tower crane, it with towering posture, force pull jun ground for construction, transportation carrying tons of goods. However, how does a tower crane lift,these heavy objects? This also has to start from the tower crane hydraulic system.

MDT249J12 Tower Crane Lease Rent Hire

As we all know, the tower crane is divided into the following major components -- metal components, such as lifting boom, tower body, turntable, bearing, balance arm, chassis, spire, etc. Parts and components, such as wire rope, trolley, pulley, slewing support, hook and brake, etc.

Working mechanism, such as lifting mechanism, luffing mechanism, trolley traction mechanism, slewing mechanism and cart travelling mechanism (travelling tower crane), etc.Safety devices, such as limit switch, overload protector, buffer stop device, wire rope anti-trip device, anemometer, emergency safety switch, safety protection signal machine, etc., in addition, is the hydraulic system of tower crane.

MDT249J12 Tower Crane Lease Rent Hire

The main components in the hydraulic system of tower crane are hydraulic pump, hydraulic cylinder, control element, oil pipe and pipe joint, oil tank and hydraulic oil filter, etc.

Among them, tower crane hydraulic pump and hydraulic motor is the most complex part of the hydraulic system, hydraulic pump oil inhalation and through the pipeline to the hydraulic cylinder or hydraulic motor, and hydraulic cylinder is the implementation of the hydraulic system components.

MDT249J12 Tower Crane Lease Rent Hire

Hydraulic pump can be seen as the hydraulic and heart, is the source of hydraulic energy. Most of the hydraulic pumps used in the Chinese tower crane hydraulic jacking system are cb-g type gear pumps. CB is not a gear code. Hegelong G is a fixed axial clearance

The whole process of a hydraulic jacking can be divided into 7 steps, which are

1. Move the balancing weight so that the tower body is not subject to the unbalanced moment, the lifting boom is in place, the direction is the same as the imported track orientation and locked, and a standard section of the tower body is hoisted and placed on the ferry trolley

2. Top

3. The positioning pin is in place and locked, and the piston rod is lifted to form the introduction space in the casing frame

4. Introduction of standard section

5. Lift the standard section and launch the ferry car

6. Put the standard section in place and install the connecting bolt

7. Jacking up slightly, pull out the positioning lock to make the transition joint and the connected high tower crane body be integrated.

MDT249J12 Tower Crane Lease Rent Hire

USED LIEBHERR TOWER CRANE

USED TEREX TOWER CRANE

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USED SCM TOWER CRANE

USED YONGMAO TOWER CRANE

USED COMEDIL TOWER CRANE

LIEBHERR TOWER CRANE USED

TEREX TOWER CRANE USED

SYM TOWER CRANE USED

SCM TOWER CRANE USED

YONGMAO TOWER CRANE USED

COMEDIL TOWER CRANE USED