Automatic Brass Door Closer Soft Close Speed Adjustment for Office Door
- UL 228 Certification, tested life cycles of 300,000+
- Smooth running, no abnormal sound, no oil leakage
- Focusing on door closer manufacturing for 15+ years
- Light and Medium Duty Economic Model for Office and Residential Doors
- Dual Valves: adjust closing and latching speed , Soft close automatically
- Precised casting aluminum body & forged steel arm, hold open arm optional
- Adjustable back check comes standard, giving more control over the competition
- Brackets and Soffit Plate to allow Regular -Top Jamb - Parallel Arm Installation.
- Non-handed installation
- Compare to Grade 2 Door Closers
- Fixed Spring (Closing) Force size 3
- UL 10C certification 3 hours fire rating
- UL 228 Certification, life cycles of 300,000+
► Long-term cooperative supplier of world's top security brands

Painting: - Silver, Brass, Bronze, Black, White, Brown
Other Specifications to Note
- Item Weight: 1.45kg (3.2 lbs)
- Box Dimensions: 44.5x28.3x18cm (17.5 ”x 11.14”x 7.09 ”)
- Screw/Bolt Pattern: 6-1/2″ width x 3/4″ height (center to center spacing)
- Footprint H: 1-11/16” (43mm) W: 7.125” (181mm) Projection: 2-3/8” (60mm)
- Max Opening Angle = 105 degrees
Model | Door Width | Door Weight | Closer Dim. (LxWxH) | Mounting Dimension |
D503 | 950mm | 40-65kg | 182*41*60.5 mm | 166*19 mm |





