3+3 ton Overhead Crane For Sale | Min. Size & Max.Working Area

3 ton + 3 ton low headroom overhead crane for sale Maldives for material handling in Timber factory.3 ton overhead crane for limited space workshop.

Background of client

Maldives Client is in the field of wood and timber industry for more than 40 years, who has a good relationship with local government officials. The boss of the Maldive timber factory is the main contact person, around sixty, a nice gentile man, knowing exactly what he needs and a trustworthy businessman who will always keep his promises. It is very delightful to cooperate with him.

Timber workshop of Maldives client

Typical features of double girder overhead crane needed for the Maldives timber workshop

Existing factory building -- with limited space, limited size and week supporting structure
Span Maximize -- reduce column width
Maximum lifting height -- the steel plate of the main beam is thickened, and the height is reduced
End beam/ End carriages minimized -- European-style structure, compact layout

In a word - the 3 ton + 3 ton overhead crane needs to be designed with the smallest size or dimensions but at the same time have the largest working coverage in the workshop of timer factory with the features of limited space and relatively week supporting structure.

Timber workshop of Maldives client which needs the 3 ton + 3 ton overhead crane for material handling

Initially design of the 3 ton + 3 ton double girder overhead crane

Initial 3 ton overhead crane design for the Maldives timber workshop

Initially the span is designed based on the specification that the overall width is 1.5m

Second revision of 3 ton overhead crane design

Modify the span and lift height of the 3 ton + 3 ton overhead crane according to the actual specifications of supporting column of the crane rail. The boss of the Maldive timber factory requires the the lifting height of the overhead crane, the distance from the lowest point of the main beam to the ground at least 5 meters

Second revision of 3 ton + 3 ton overhead crane design drawing

The end beam is 4 meters long which will result in two blind areas of at least two meters on both sides of the working area, and the length of which needs to be reduced as much as possible, at least 2796mm ( based on the designing of the Singapore supplier. )

3 ton hoist trolley for timber handling overhead crane

3 ton overhead crane for Maldives clients

The dimension should be clearly indicated on the drawing and the sizes of all parts should be labeled including the total height and total length.
The supporting structure of the workshop is strengthened and and at same time to ensure the working coverage is maximized.

On rail beam specifications

The specifications of H beams, shown as the following picture

Rail specifications

Adjust the column layout

The column layout is adjusted for the boss needs cantilevers on both sides.

Colum design adjustment

Question: Is it possible to change the direction of the column at will? Answer: NO!

In fact, the change of the direction of the column has an impact on the load-bearing. It is necessary to increase the size of the column, and the price will increase a lot. ( It is acceptable when the price difference is within a reasonable range due to the steel thickness is increased, and more intuitively, steel weight is much heavier.)
HN396*199*7*11, 83kg/m
HW300*300*10*15, the rice weight is about 120kg

Please note that the extra height of the column will goes through the ground, so please do no think to fit the measurement.
The column is required to be increased in length of 4.303m--4.608m, and the excess part of 305mm is buried underground to ensure that the ground is flat.

Colum design adjustment

Colum design adjustment

On the location of the foundation

Existing supporting wall is thin, made of thin steel plate. it is not suitable to locate the foundation of column outside the wall. To ensure that the foundation is all inside the wall, the pit position of the foundation pit will be offset.

Tips:The foundation map is complex, just see the basic information, such as foundation size, bolt hole diameter, base plate/connection plate thickness

Column design for 3 ton overhead crane

On painting of overhead cranes

Anti-corrosion - Maldives is an island country, the air is very salty country with high salinity in the air. Anti-corrosion paint is required and the this cost of which can be listed separately.

Color Preferences / Taboos / Obstacles -The color of the paint should not be a light color such as yellow, and it is required to be gray, which is the customer's requirements and can be realized .

Main girder production of the Maldives 3 ton + 3 ton overhead crane

Pictures of production of the Maldives 3 ton + 3 ton overhead crane