DOOR CLOSER RYOBI DS-2150 with a special stop arm
Renowned Japanese Ryobi DS-2150 BC (No. 3-4-5) automatic door closer and return spring mechanism with a special adjustable hold stop arm for the desired opening degrees.
Top-quality construction with adjustable force and backcheck function for safety reasons.
Certified fire-resistant.
Operates reliably down to -20°C.
Ryobi DS2150 Door Return Spring Mechanism (with adjustable force No. 3-No. 4-No. 5) suitable for fire-resistant and fire safety doors.
The Ryobi door return spring mechanism features adjustment screws for:
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Adjusting the door closing speed.
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Adjusting the final door closing.
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Adjustment with a valve for controlled opening (back check) that limits the door’s travel during opening to the desired degrees and provides resistance against violent door openings.
Use with the Hold system is recommended, allowing the door to remain steadily open at a specific desired point.
It is easy to install and adjust. The mechanism’s force can be selected (No. 3-No. 4-No. 5) without the need to drill new holes on the door. It can be converted to right or left depending on the door.
It is certified for fire-resistant protective doors and operates reliably down to -20°C.
The mechanism is rated for 1,000,000 operational cycles without issues.
Available in White, Black, and Silver colors.
The package includes templates and instructions for proper installation.
Force adjustment is at the customer’s discretion, choosing from the following 3 force combinations based on door width and weight, without needing extra holes, according to the table below. For example, after selecting No. 4, it can be changed to No. 3 or No. 5 without new holes.
Force No. | Door Width (mm) |
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No. 3 | 950 |
No. 4 | 1100 |
No. 5 | 1250 |