Technical datasheet
GM-89 Door Closer
Door closer series
QIHENGDoorControls
Issued: September 29, 2026
GM-89 is a hydraulic door closer rated for doors up to 1300 mm wide. It belongs to our door-closer series, for everyday residential and commercial openings.
This model covers several power sizes, and our catalog does not say which power size suits which door weight. That mapping is pending factory confirmation.
| Power size | 3-6 |
|---|---|
| Max door width | 1300 mm |
| Door weight | 45-150 kg |
| Body style | Large square-box body |
| Hold-open | No hold-open — the door closes from any angle up to 180°. |
| Max opening angle | 180° |
| Body material | Die-cast aluminium alloy |
| Finish | Three-layer gloss paint |
| Tested open/close cycles | At least 1,000,000 cycles |
| Operating temperature | Down to -45 °C |
| Body length | 245 mm |
| Warranty | 5 years |
Dimensions
What you can adjust
- Adjustable closing power. Closing force is set on the unit itself rather than fixed at the factory, so one model covers a range of door sizes and can be tuned after it is hung.
- Backcheck (BC). Resists the door near the end of its opening swing, so wind or a hard shove does not throw the leaf into the wall behind it.
Finishes
- Silver
- Gold
- Black
- White
- Brown
Testing this model is listed on
- UKCA — Certificate of Conformity — LTC Testing & Certification Limited, LTC260908-GEM-023
- EN 1154 conformity — voluntary certificate — ICR, ICR/VC/HE260922