Buying The Right Aluminum Ladder

1. Ladder material identification

Generally, it can be judged by looking at the gloss of the surface of the profile. If the ladder is made of recycled materials, the surface is dull or pale, without gloss (basically non-reflective), and the touch feel is relatively rough, and the surface of the new material is glossy. The hardness is very good, and the touch feel is smooth and delicate; you can also see the toughness of the material. A qualified aluminum alloy material should be able to restore its original state immediately after being squeezed by an allowable external force. If it cannot be restored immediately, then this kind of ladder is There are great security risks.

2. The workmanship of the ladder

The first choice is to open the ladder and have a look. If the ladder makes a creaking sound as soon as it is opened, it is definitely not a good ladder. When a good ladder is opened and closed, there is no sound. If there are long or short legs, you can also check the materials and workmanship of the accessories. The final judgment on the quality of the ladder interface is as follows: a. If the interface is fixed by rivets, you can check the processing status of the rivets. If there is looseness or gap If it is too large, it is an unqualified product; b. If the interface is fixed by welding, the weld bead must be a fish scale-like sample as a standard product, and the weld bead should be full and uniform in height and size; c. The interface is fixed by riveting, It can be seen that the connection between the step bar and the ladder beam is loose or loose (not pressed), and the flange of the step bar should be uniform in size;

3. Check the bearing capacity

In order to prevent the poor quality ladder from hurting us when checking the bearing capacity, we first need to see what the maximum bearing capacity of the logo is. When the bearing capacity is suitable for the weight, we can check it by ourselves, but it cannot be increased all at once. Add some weight tests when it can withstand. In the national standard GB 12142-2007, the load can be divided into four gears, which are 90KG, 100KG, 110KG, and 135KG respectively. The qualified safe load of the ladder should be more than 2.5 times of the mark.