Parent-factory made · OEM & ODM

G2500 Door Closer

G2500 is a hydraulic door closer rated for a door weight of up to 65 kg. It belongs to our door-closer series, for everyday residential and commercial openings.

Key specifications

Installation type
Surface-mounted
Power size
Not published · Ask the factory to confirm
Max door width
Not published · Ask the factory to confirm
Door weight
up to 65 kg
Arm type
Standard arm
Application
Commercial
QIHENGDoorControls G2500 door closer

Specifications

Power size—
Max door width—
Door weightup to 65 kg
Body styleMedium square-box body
Body materialDie-cast aluminium alloy
Tested open/close cyclesAt least 1,000,000 cycles
SeriesDoor closer series

Medium square-box body

A square-section body with flat faces rather than a rounded casing. The squared profile suits aluminium-framed and commercial glass doors, where a rounded body looks out of place.

What you can adjust

Two-stage closing speed
The main swing and the final latch are adjusted separately — the factory quotes 180°–15° for the sweep and 15°–0° for the latch. In practice that means you can slow the door down without leaving it too weak to push the latch home.

These are the factory's own adjustment ranges, not tested performance figures under EN 1154.

Build and finish

Finish
Three-layer gloss paint
Operating temperature
Down to -45 °C

The factory's own figure for cold-weather operation. Like the adjustment ranges, it is their claim rather than a result from a test report.

Taken from our own packaging label, which states it as a minimum. For context, EN 1154's durability test runs to 500,000 cycles, so this is double what the standard asks. Ask us for the test basis if the figure matters to your specification.

Finishes

Five stock finishes, and we will match another on a custom order. The swatches below are approximate — ask us for a physical sample before you match one to a frame.

  • Silver
  • Gold
  • Black
  • White
  • Brown

Inside the body

  • Alloy steel gear, with the piston given three extra precision-finishing operations.
  • Rack-and-pinion hydraulic action, with the closing speed and the latch controlled by separate valves.
  • Imported seals and needle bearings, which is what the factory credits for its leak resistance.
  • High-performance spring structure, so the closing force holds up over the life of the unit.

Choosing the right size

Check before you order

  • Measure the door leaf width and send it to us — this model's width limit needs factory confirmation.
  • Check the door weight: this model is rated up to 65 kg. If you cannot weigh it, tell us the leaf size, material and thickness and we will estimate it.
  • Exterior doors and doors in draughty corridors face wind pressure the specification does not account for. If the door is exposed, say so — it can push the choice up a power size.

Not sure which model fits? The selection guide walks through measuring a door and reading these numbers, or just describe your door in an inquiry and we will recommend one.

This adds the model to an inquiry form — it is not a purchase or an order.

Download datasheet (PDF)

Related models

G2500

Inquiry list · no payment