There are two types of sliding door profiles in the market: aluminum magnesium alloy and secondary aluminum. High-quality sliding door profiles are made by aluminum, strontium, copper, magnesium, manganese and other alloys. Thus, the tenacity is one of the very big advantages. What’s more, the thickness can reach more than one millimeter. Secondary aluminum belongs to low-quality profiles. Therefore, the toughness and service life period also reduce according.
There are four aspects for you to choose and buy sliding doors better.
1. Profiles
Aluminum magnesium alloy profiles mostly adopt primary colors without coating, however, some merchants use secondary aluminium profiles surface coating in order to sell seconds at best quality prices. In the light of this situation, it is necessary to let manufacturers show the fracture surface of the products profiles so as to know the real materials when the customers choose and buy it.
2. Pulley
Sliding door is divided into two sets of pulleys: upper pulley and lower pulley. The structure of good upper pulley structure is relatively complex. There is both bearings and aluminum piece within the pulley which can fix two wheels so as to make its direction smoothly slide with almost no noise. Consumers can not take for granted that the lighter the sliding door, the better it is. As a matter of fact, the high-quality sliding door should have certain weight when sliding smoothly with no vibration.
The design rationality of rail directly affects its use comfort level and service life period. So, when consumers choose and buy aluminum sliding door, it is right to choose the design which is good for cleaning and hygiene. At the same time, rail height can not be less than five millimeters for the safety of the elderly and children.
3. Origin
The source of sliding door in the market is divided into three types: made in China, domestic OEM (Original Equipment Manufacturer) and imports from foreign countries.