I need a universal door closer 55h5

Adjust the length of the arm or move the door closer.

My door slam to hard.

Check out Midlands Floor Springs blog.

the terminology of door check and door closer are from long ago,

in 1880's and 1890's door closers were just a spring device to pull the door shut but not really control the closing speed or force,

door check, that was more of a hydraulic or pneumatic cylinder with a piston inside (think of a regular screen door closer, but without the spring) was used together with a door spring to create some controlled door closing, and prevention od door slamming.

now, the term of door check is faded because after the rack and pinion hydraulic closer was invented, the dampening effect was added onto the device in the manufacturing process. hence now they are all referred to as door CLOSER.

hope this helps, expert in closers here