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Sliding Door Closers

NSC Series

Self-Closing System for Sliding Doors

NSC series Sliding Door Closers, utilizing sophisticated spring and damper mechanisms, adds self-closing feature to your sliding/barn doors. Mechanical system, no electricity required.

This eco-friendly self closing sliding door closer is suitable for all kinds of sliding/barn doors made of timber, steel, and aluminum, and ideal solution for commercial, industrial, healthcare, hospitality, residential, and all other facilities.

  • Mechanical door closer – Manual-open + automatic-close (full-range).
  • No electric power source required – works anytime even during power outage, ideal solution for all places.
  • Utilizes spring wire device and rotary gear damper for safe and smooth self-closing + soft-closing.
  • Dual Speed Control – Both closing speed/dampening speed are adjustable.
  • Very light door opening force, smooth closing action.
  • Easy installation.

Brochure – NSC-C60V series (Door weight up to 132 lbs.)

Brochure – NSC-C48 series (Door weight up to 176 lbs.)

Brochure – NSC-C1215 series (Door weight up to 330 lbs.)

Catalog – Sliding Door Closers

Need Accessories For Sliding Door Closers?

Click here for various option items/accessories/parts for the NSC series Sliding Door Closer.


Dual Speed Control:
Both the door self-closing speed and damper soft-closing speed are individually adjustable.

Its compact size and functional design allows any sliding doors to become self closing. Designed for door panels of either single, bi-parting and telescopic configuration.

NSC series is a highly reliable system securely tested for 500,000(NSC-C60V) and 1,000,000(NSC-C48) cycles.

Long service life:
A long lasting product life time is achieved by our cutting-edge technologies, employed in our compact yet robust rotary gear damper, fluid friction resistance and one-way clutch brake mechanism.

The only preparation needed before installation is to drill screw holes into the door frame and glass. After that, all parts/devices can be installed by a screwdriver from the front, easily and efficiently.

Non Handed:
The system can be used for both left and right hand sliding doors. It can be easily converted between left and right handing by a simple adjustment procedure.

Non Electric:
The system does not require electric power so that works anytime even during power outage.

With its unique fluid reduction gear mechanism, the system is also designed to assist in reducing the door opening resistance to achieve an easy and safe opening operation for all, including the elderly, small children, people of limited mobility and people who are otherwise carrying large packages or groceries.

Specifications for Sliding Door Closer

ModelSliding Door Size
Applicable width
Sliding Door Size
Rail Length(*)
Initial opening force
(for single door,
with max. door weight)
Door Type
NSC-C60V23 1/2 – 6322 – 13286.6 or 1228.9N (2.00 lb)Steel/Wood (*1)
NSC-C4827 1/2 – 6366 – 17686.6 or 1229.2N (2.07 lb)Steel/Wood (*1)
NSC-C121527 1/2 – 63176 – 33086.6 or 12219.2N (4.32 lb)Steel/Wood (*1)
NSC-C252535 1/2 – 98 1/2330 – 550122 or 19336.5N (8.21 lb)Steel/Wood (*1)
27 1/2 – 6366 – 17686.6 or 1229.2N (2.07 lb)Light steel Aluminum
(*1) The NSC series sliding door closers can be used on either steel or wooden doors.
The system comes with machine screws. If you are going to install it onto wooden door/wall, please prepare the following screws (equivalent sizes are ok).
8pcs x #10 1-1/2″ hex tapping screws (for hangers)
8pcs x #10 1-1/4″ pan head tapping screws (for rail)
In addition, to avoid the door to swing, you may prepare a suitable bottom guide.
*The rail can be cut into preferred length.
*The complete system comes with either 2.2m (86.6”) or 3.1m (122”) rail.
*KIT-version is also available that comprises of all components of complete system except rail.
*Complete system includes pull spring device, damper control device, control rack rail, door hangers, door stopper, installation accessories and rail track.
*The rail must be mounted on wall surface. (System is not compatible with the ceiling hanging type sliding doors or framed patio sliding doors.)
*Cover is option.



NSC-series Installation Precautions
Pull Spring Device Caution
NSC-C60V Installation Manual
NSC-C48/CB48 Installation Manual
NSC-C1215 Installation Manual
NSC-C2525 Installation Manual