The GGI 660 (3) High Efficiency Concealed Door Closer features a hidden installation with adjustable closing force (Grade 3). It ensures smooth, reliable operation and is ideal for medium-weight doors in residential and commercial settings. Designed for energy efficiency, it provides quiet performance, durability, and protection from environmental elements.
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GGI 660 (3) High Efficiency Concealed Door Closer

Product Summary
Certifications

Singapore PSB Standard

EN1154 CE Certification

ANSI Grade 1 And UL Certification
Specifications
| Closing Force - Spring Strength (EN) | Adjustable Spring Power From 2 to 4 |
| Application | Non Handed |
| Standard Installation Door Width | Up to 1100mm |
| Maximum Door Weight | Up to 130kg |
| Arm Type - Standard | Slide Track & Arm |
| Closing Speed Angle | 15° – 120° (Adjustable by valve) |
| Latching Speed Angle | 0° – 15° (Adjustable by valve) |
| Door Opening Angle | ≈120° |
| Back Check | Back Check |
| Delay Action | Delay Action |
| Hold Open | Hold Open |
| Dimensions | Length – 236mm / 260mm(with gear) Width – 40mm Height – 59mm |
