NHN 510

NHN 510 Series is a slimline closer incorporating the latest production technology.
Available in a range of 3 sizes covering door weights up to 65kg.

  • New peripheral-cam, hold open mechanism
  • Twin door speed controls with separate regulating screws
  • Constant closing speed assured by automatic temperature compensation

Speed Adjustment – There are two speeds – door closing speed and controlled speed. Each is controlled by its own speed regulation screw.

Power Shoe Arm Bracket – Designed to be reversed and increase final closing power by approximately 25%. 

Hold Open Angle – NHN 510 Series door closer is equipped with a serration type hold open device which allows the door to be kept open at any desired angle between 80 and 135 deg.

Non Handed – Easy to install with card template and install instruction. NHN 510 is full non-handed for flexible installation.

Standard Finishes – Sliver, White, Brown, Black or Gold. Other finishes available on request .

Guarantee – Free replacement ex-works if any closer proved defective by reason either of faulty manufacture or defect in materials.

 

Variable Closing Force Spring Stength (EN) 1 to 3
Standard Doors < 800mm | <40kg 511
< 900mm | < 50kg 512
< 950mm | < 65kg 513
Body Dimension (mm) Length 178
Height 35
Projection 75
Arm Standard Y
Standard Hold Open O
Parallel O
Parallel (Hold Open) O
Rack & Pinion Y
Power Shoe Arm Bracket Y
Angle of Opening 180
Power Adjustable by Spring Y
Power Adjustable by Position N
Sweep Speed Adjustable Y
Latch Speed Adjustable Y
Hold-Open Built in N
Hold Open Arm O
Back Check Self Regulating N
Adjustable at Valve Y
Delayed Action Adjustable N
Non-Handed Y
With Cover O
Application Regular Y
Parallel Arm O
Transom Y
Y = Yes | N = No | O = Option

Speed Adjustmentd.c-510_diag_1

  • There are two speeds; Door Closing Speed and Controlled Speed.
  • Each speed is controlled by its own regulating screw. Adjust the door closing speed with the No.1 speed regulating screw and the controlled speed with the No.2 speed regulating screw.
  • Turn clockwise to reduce speed and counter -clockwise to increase speed.

 

 

 

 

 

 

 

 

 

 

 

 


Door Handingd.c-510_diag_2

  • If the door opens clockwise, it is a right hand door.
  • If the door open counterclockwise, it is a left hand door.
  • Use this diagram to determine the handing of your door.

 

 

 

 

 


Adjusting Closing Forced.c-510_diag_3

  • The position indicated by figure ‘A’ is the standard position of the eccentric show. By turning the shoe 180deg to the position shown in figure ‘B’, the door closing force increases about 25% just before the door closes (during the last 10deg).

 

 

 


 

Adjustment of Hold-Open Angle

  • NHN 510-Series door closer is equipped with a serration type hold-open device which allows the door to be kept open at any angle between 80 and 135deg with the regular closer with the parallel closer between 80 and 170deg. The hold-open angle can be adjusted in steps of 6 to 12deg.

 

 

 


Regular Typed.c-510_diag_4

  • Open the door to the angle you want the door to stay open at. Tighten the clamp bolt (M8 hex.) on top of the stop joint with a spanner. Make sure that the serration’s on the arm and on the bushing engage snugly.

 

 


 

Parallel Typed.c-510_diag_5

  • Open the door to the angle you want the door to stay open at. Tighten the clamp belt (M8 hex.) on top of the stop joint with the spanner. Make sure that the serration’s on the link bracket and on the bushing engage snugly.

 

 


 

Adjusting Hold-Open Powerd.c-510_diag_6

  • The door hold-open is factory adjusted to the optimum level. To re-adjust it, take the following steps as shown.

Standard Arm Without Hold Opend.c-510_drw_1

  • This is the standard application where the doors closer is fitted to the door on the opening face and is generally used for internal doors. The closer is fully reversible.

 

 

 

 

 

 

 

 

Dimensions
Model Unit A B C D E Diameter of Hole
511
512
513
mm 76 107 178 75 46 5.5
inch 3 4 7/32 7 2 15/18 1 13/16 7/32

 

 

Standard Arm with Hold Opend.c-510_drw_2

  • For use in similar location to the standard arm, the hold open arm is fitted with a unique cam device which is easily adjustable to allow the door to be held open in any position up to 135deg. It can be engaged or disengaged with little effort.
  • When needed, a fusible link can be used in conjunction with the hold open device. It is easily installed and is used on fire doors to retard the spread of fire and smoke.

 

 

 

 

 

 

Dimensions
Model Unit A B C D E Diameter of Hole
511S
512S
513S
mm 76 107 178 75 46 5.5
inch 3 4 7/32 7 2 15/18 1 13/16 7/32

 

Parallel Arm (Standard)d.c-510_drw_3

  • The parallel arm application if fitted to the closing face of the door and can be used when top jamb application is impractical or a drop plate is not suitable.
  • Parallel arm application should also be used when the reveal is deeper than 70mm (2 3/4″) or where the closer arm is requited not to project into the room.

 

 

 

 

 

 

 

Dimensions
Model Unit A B C D E F Diameter of Hole
511P
512P
513P
mm 76 36 178 66 75 46 5.5
inch 3 1 13/32 7 2 19/32 2 15/16 1 13/16 7/32

 

 

Parallel Arm with Hold Opend.c-510_drw_4

  • For use as above, the parallel hold-open arm is also available with a cam hold-open device allowing the door to be held open in any position upto 170deg.
  • When needed the fusible link can be used in conjunction with the hold open device. It is easily installed and is used on fire doors to retard the spread of fire and smoke.

 

 

 

 

 

 

 

Dimensions
Model Unit A B C D E F Diameter of Hole
511PS
512PS
513PS
mm 76 36 178 66 75 46 5.5
inch 3 1 13/32 7 2 19/32 2 15/16 1 13/16 7/32

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