High quality aluminium heavy duty automatic door closer

Door closer classification:
American Standard Door Closer
1) High-end American standard door closer
Reached 2 million times of opening life test. Meet the American ANSI 156 level 1 requirements. With adjustable strength function.
It is suitable for heavy-duty and high-strength door control systems for public buildings, engineering and maintenance doors with high security and high frequency of use.
2) Mid-range American standard door closer
Non-fire door closers have reached 1 million opening life tests. With adjustable strength function.
It is suitable for the door control system of high security, high-strength residential doors and medium-strength commercial doors with high frequency of use.
European standard door closer
High-end European standard door closer
More than 500,000 life tests meet the requirements of EN 1154. With adjustable strength function.
It is suitable for heavy-duty and high-strength door control systems for public buildings, engineering and maintenance doors with high security and high frequency of use.
Mid-range European standard door closer
More than 300,000 times of life test meets the requirements of EN 1154. With adjustable strength function.
It is suitable for door control systems for high-strength residential doors and medium-strength commercial doors with high security and high frequency of use.
China Standard Door Closer
More than 500,000 life tests, the latest standard for built-in vertical door closers, also require more than 2 million life tests.
It is suitable for door control systems for industrial and mining enterprises, residential projects, commercial buildings, hospitals, schools and other occasions.