5.1.17 How to use [manual edit] to adjust the center of gravity to ensure the balance of container

Whether it is a sea container or a railway container, there are certain requirements for the center of gravity of the cargoes during transportation. The requirements of the sea container is that the center of gravity deviation should be controlled within 10% in length direction when the loading weight is close to the weight limit; For railway container, it is required that the front and rear weight deviation of the container does not exceed 2T( some railway bureaus allow slightly more than this value), and the side weight deviation does not exceed 500KG. If the loading plan generated by LoadMaster does not meet the requirements, how to manually edit the center of gravity?

Let's use an example to explain.

Calculate the cargo loaded into a sea container, and the resulting loading plan is shown below.

In the lower left corner of the 3D picture, you can see that the weight utilization rate of the container is 96.5%, which means the container loading weight is close to the weight limit. And the center of gravity deviation in length and width directions are beyond the range of 10%. In this case, you can use [Manual edit] to adjust.

From the plan view of the [Balance Analysis], it can be seen that the center of gravity in the length direction is biased toward the front of the container so that the heavy goods in the front and the light goods in the rear need to be interchanged; the center of gravity in the width direction is biased to the left side of the container so that the heavy goods on the left and the light goods on the right need to be interchanged.

Click [Manual Edit] button at the top to enter the manual editing interface.

First swap the positions of the heavy goods in the front and the light goods in the rear:

1) Select the last line of the purple goods, right-click the mouse, and click [Row Split] under [Split].

2) Select the last line of purple goods that had been cut out before, hold down the left mouse button, and pull the goods out of the container.

3) Select the yellow cargo in the first row, hold down the left mouse button, drag it and place it on the last row of the container. It will jump up when it is close to other cargo. You should hold down the "Ctrl" key on the keyboard with your left hand in case the cargoes jump up, and hold the left mouse button with your right hand to move the goods to the corresponding position.

4) In the same way, move the purple goods to the top of the container.

Through the real-time data of the center of gravity offset in the lower right corner, it can be seen that the center of gravity offset in the length direction is controlled within 10%, and the heavy cargo in the front and the light cargo in the rear are interchanged.

Then swap the positions of the heavy goods on the left and the light goods on the right:

1) Select the yellow cargo in the second row, hold down the left mouse button, and drag it out of the container.

2) Select the purple cargo in the second row, hold down the "Ctrl" key with your left hand, and hold the left mouse button with your right hand to move the cargo to the left side of the container.

3) Select the yellow cargo outside the container and move it to the gap position in the second row. You will find that even if you hold down the "Ctrl" key, there is no way to put it in. At this time, hold down the "Ctrl" key and click "Move Left" in the [Move] under the software until you reach a part of the goods Enter the gap, and then drag it with the mouse to close it to other goods and not overlap.

Through the real-time data of the center of gravity offset in the lower right corner, it can be seen that the center of gravity offset in the width direction is also controlled within 10%, and the heavy cargo on the left and the light cargo on the right are interchanged.

After the manual editing of this case is completed, click the [Save] button in the lower right corner to see the manually edited loading plan.

There are a few tips for manual editing:

1) The line of goods is red, which means it is outside the container; the line of goods is black, which means it is inside the container.

2) When moving goods: press and hold the left mouse button with the right hand to move.

3) When the cargo is positioned: hold down the ctrl key with your left hand, and press the left mouse button with your right hand to move until the position is set and then let go, the cargo will not jump up.

4) When creating a new loading block, hold down the ctrl key with your left hand and click the mouse with your right hand to select multiple blocks.

5) Click the [undo] button to cancel the current operation and return to the previous step.

Finally, there are several considerations for manual editing:

1) The manually edited scheme will be lost once you click the [Optimize] to recalculate.

2) If the goods cannot be removed from the container: This means that the ctrl key of the keyboard is malfunctioning and it is still being held down. Please press this button hard to operate.

3) Sometimes due to the quality of the mouse, the movement of the goods cannot be well controlled. At this time, you can try another mouse.

4) It is relatively unfamiliar and difficult to use the manual edit for the first time. You will find it simple and flexible after frequently using.