KAK Door Closer 2 Spring Hydraulic Buffer Adjustable Speed

Meet the KAK Door Closer 2 Spring Hydraulic Buffer Adjustable Speed — a robust aluminum alloy door closer crafted to keep doors closing gently, safely, and quietly. With two springs and a hydraulic buffer, this closer delivers smooth, adjustable closing speeds that reduce slams, wear, and noise while protecting hinges, frames, and occupants. Available in Black or Silver, it supports doors weighing 25–80 kg and is suitable for a wide range of commercial and residential applications.

Designed for versatile installation, it offers two configurations: a universal 180-degree no-positioning type and a 90-degree positioning type. The normal (180°) type is the most popular—select the type you need when you place the order. Built-in high-tenacity springs ensure durability and quiet operation, while easy clockwise/counter-clockwise adjustments let you dial in the perfect closing feel.

Benefits & Tips

• Prevent door slams and reduce wear on frames and hinges with a controlled, hydraulic closing action.
• Adjust closing speed: clockwise to slow down, counter clockwise to speed up. Fine-tune the arc from 180° to 15° and the latching from 15° to 0° for a smooth finish.
• Installation is straightforward: mount about 9–10 cm from the door hinge for optimal operation and balance.

Product specifications

• Brand: KAK
• Model Number: NED-5310
• Type: 2 springs inside; Universal 180-degree no positioning / 90-degree positioning type
• Bearing Load: 25–80 KG
• Color: Black / Silver
• Material: Aluminum alloy
• Origin: Mainland China
• Certification: None
• Drop shipping: Accepted
• Service Time: Tested up to 400,000 cycles
• Size options:
  • Small Size — Bearing Weight 25–45 KG; Door Frame 500–1000 mm
  • Medium Size — Bearing Weight 45–65 KG; Door Frame 600–1200 mm
  • Large Size — Bearing Weight 60–80 KG; Door Frame 900–1300 mm
• Notice: Normal type is the most popular design; choose the type you need when you pay the order.
• Installation reminder: Installed at a distance of 9–10 cm from the hinge.

Package includes:

• KAK Door Closer 2 Spring Hydraulic Buffer

Warnings/Reminders

• Adjusting screws must not protrude beyond the surface of the door closer body, otherwise the closer may not function properly.
• Black color may be more prone to scratches; if you receive it with any issue, please contact us to resolve it promptly.

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