Door Closers

3000 Series

Gainsborough 3000 Series Hydraulic Door Closers are the ideal solution for those projects where economy and ease of installation are absolute requirements.

Product Range

In This Series

Product Information

Regular Arm Installation
(Bracket supplied as standard)

Parallel Arm Installation
(Bracket supplied as standard)

Drop Bracket Installation on Frame
(Bracket supplied as standard)

Adjustable Arm & Bracket

For jamb installation (timber or metal).
30mm maximum (positioning of arm) adjustment (STD Installation).
Parallel arm installation, bracket supplied as standard.

Latching Speed Adjustment Valve

Independent captive latching speed adjustment valve for fine tuning of latch closing speed.
Latching range 0°-15°.

Closing Speed Adjustment Valve

Independent captive closing speed adjustment valve for fast-slow closing action of door.
Closing range 15°-180°.

Power Range

2 or 3 depending on location of closer on the door.

Mechanism & Case

Rack and pinion hydraulic controlled piston, housed in high purity aluminium body.


Backcheck standard in 3003ABC and is adjustable by valve at opposite end to latching/speed valves.
Approved on fire door assemblies in accordance with Aust. Std. AS1905.1.2005 – Fire Resistant Doorsets.
Reversible for left or right-handed doors.

Pinion Cover Cap

Where left or right-handed installation selected, pinion cap cover complements body design.


Suits side hung door from:
– 800mm-1050mm in width
– 25kg-65kg weight.


3003ABC – Regular Arm and Parallel Bracket with adjustable Backcheck

Hold Open

3003ABC/HO – Regular Arm and Parallel Hold Open


3100/PAB – Parallel Arm Bracket
3101/HO – Hold Open Arm Assembly
3003/OP – Drop Plate


Supplied standard in silver finish

Limiting Dimensions

3003ABC Limiting Dimensions


A. Adjustable Arm & Bracket
B. Latching Speed Adjustment Valve
C. Closing Speed Adjustment Valve
D. Mechanism & Case
E. Pinion and Cover Case


Hold Open Standard Arm

Suits Regular and Parallel Arm Hold Open

3350 Leaf Selector


5 year limited tarnish resistant and 10 year limited mechanical

Gainsborough Hardware Industries Limited guarantees to repair or replace this product if within five (5) years from the proven date of purchase it tarnishes, discolours or corrodes; or if within ten (10) years from the proven date of purchase any mechanical defects occur. Applies only when properly installed and subjected to no more than fair wear and tear. This guarantee does not extend to labour costs, personal loss, death or injury, or economic, consequential or property damage of any kind whatsoever.

  • Search
  • Search for products by typing in a name or description here...