High Quality Door Floor Spring (HD-238)
|Min. Order (Pieces)||FOB Price|
|500+||US $0.1 / Piece|
1. Dimensions: 256mm*105mm*51mm
2. Max. Door width: 1050mm
Max. Door weight: 100kg
3.500, 000cyles tested
4. Two-stage speed adjusting
5. Mechanical hold open 90 degree
6. Passed durability test: 500,000 times
7. Special oil used for the different temperature from -30Centigrade to 55Centigrade
8. Two-sided switch, inward or ourward opening(or closing) the door.
9. FARS Floor spring inspected by the national light association architectural hardware quality supervision and inspection center. It passed 0.5 million times durability test and its technical performance has complied to the national standard. It can be well used with all kinds of wooden doors, fireproof steel doors, aluminum doors and tempered glass doors.
10. Built-in redactor can prevent door or floor spring from damage in case of extreme exterior pressure or strong wind.
11. Constand tempreture device assures steady closing speed under significant difference in temperature.
|th 90° Step Device; 2 Section Speed Adjustment; Value Closing Buffering Function Position Adjustable|