203 Series Medium Duty Square Door Closer, UL
Constructed with high-strength materials and precision hydraulic control, the 203 Series ensures smooth, stable and quiet door operation. It supports independent adjustment of closing speed and latching speed.
This series has undergone rigorous testing and is UL certified, guaranteeing stable performance and long-term durability even in demanding environments.
Technical
- Closing Force :2、3
- Body Dimensions:180 mm (L) * 51 mm (W) * 39 mm (H)
- Footprint:60 mm * 38 mm
Product Parameters
| Item No. | Overall Dimension | Footprint (mm) | Applicable Door Weight(kg) | Applicable Door Width(mm) | Installation Style | Function | Power Size | Certificates | Notes | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| L(mm) | W(mm) | H(mm) | |||||||||
| 203 | 180 | 51 | 39 | 60 × 38 | 40-65 | ≤ 950 | · Standard Installation · Parallel Installation · Top Jamb Installation | · Adjustable Closing & Latching Speed · Scissors arm with hold-open function (Optional) | 3 | UL UL10.C | · Die-casting Body & Steel Scissors Arm · Two speed valves on the front of door closer body, which hidden under slide cover |
| 203 SL | 180 | 51 | 39 | 60 × 38 | 25-45 | ≤ 850 | Slide Arm Installation | · Adjustable Closing & Latching Speed · Slide tracking arm with hold-open function (Optional) | 2 | UL UL10.C | · The power size will reduce to size 2 with slide arm · Die-casting Body & Slide Track Arm · Two speed valves on the front of door closer body, which hidden under slide cover |

Application Scenarios
Commercial Buildings: Offices, shopping malls, hotels, restaurants and retail stores
Public Facilities: Hospitals, schools, airports, libraries and government buildings
Fire Safety: Fire doors, stairwells and emergency exit passages
Residential & Apartments: Entrance doors, common areas and multi-family housing
Industrial & Special Use: Factories, server rooms, climate-controlled spaces and high-traffic areas
FAQs
What types of doors is this series suitable for?
This series is designed for various door types, including wooden and metal doors.
Is this door closer suitable for both left and right-hand doors?
Yes, this series features a non-handed design. A single unit can be installed on either left-hand or right-hand opening doors, which greatly simplifies installation and inventory management.
Do you provide OEM services for this door closer?
Yes. As a direct source manufacturer, we offer comprehensive OEM and ODM services. Beyond our standard Silver, White, and Black finishes, we can customize surface treatments, packaging, and specific spring strength configurations to perfectly align with your brand requirements.
Does this series support hold-open function?
Yes, this series can be equipped with a hold-open arm to realize the hold-open function.





