AOHUALUN®Window & door hardware

NP300 series

Inward-opening casement hardware

Open-in casement hardware with a multi-point lock on one side. The NP300 set covers the handle, main and side transmission rods, locking plates, pivot hinges and a wind brace.

Window type
Inward-opening side-hung casement
Profile
OHL open-in groove, table below
Rated load
window hinges up to 80 kg (catalogue p. 01)
See the hardware set
Assembly drawing of a fitted inward-opening casement window with the NP300 hardware set laid out around the sash
Catalogue p. 25 (NP300) — the numbers on the drawing match the hardware set below.

Adaptation

Window type and profile conditions

Check the window type and the profile groove before choosing codes. If your profile differs, send the section drawing and we will confirm the set.

Window types covered

  • Inward-opening side-hung casement (open-in), single moving sash
  • Multi-point lock on one side with two locking points
  • Handed left or right

Profile and groove conditions

  • OHL open-in profile. All groove dimensions below are finish dimensions, measured after anodising or powder coating.
  • Sash and frame notches are offset by 11.5 mm; the handle sits within 7.5 mm of the frame face.
Profile groove dimensions for OHL open-in, side-hung windows
DimensionRequired
A — Height of the sash groove4.5 mm
B — Depth of the sash groove3 mm
C — Height of the frame groove5 mm
D — Depth of the frame groove3 mm
E — Notch distance of the sash and frame11.5 mm
F — Size of the sash border22 mm
G — Width of the sash bottom groove20 +0.3 mm
H — Width of the sash notch15 ±0.2 mm
I — Width of the frame notch14 ±0.2 mm
J — Width of the frame bottom groove18 +0.2 mm
K — Distance between hinges4 mm
L — Space between hinges4–5 mm
M — Size for the handle installation≤ 7.5 mm

All values are after surface treatment (anodising, powder coating and similar).

Source: Catalogue p. 02

Hardware set

Matched set with catalogue codes

Codes are the ones printed in the AOHUALUN catalogue, so an existing order can be matched line by line. Quantities are per window or per leaf unless noted.

NP300

Single-side two-point lock set

Inward-opening casement, catalogue p. 26

Inward-opening casement hardware — Single-side two-point lock set (NP300)
No.ItemCodeQtyMark
1HandleOHL.DB-80121Optional
2Main transmission rodOHL.LJ-20071—
3Side transmission rodOHL.LJ-20022—
4Locking plateOHL.SK-20012Depending on lock points
5Pivot hingeOHL.H-40242Optional
6ShimOHL.LJ-20171—
7Supporting blockOHL.LJ-20191—
8Wind bracingOHL.XWQ-0051Size to suit sash

Items marked optional in the catalogue are selected by the window maker; the remaining parts make up the standard set.

The catalogue recommends pairing the set with a side-hung window limiter for best results.

Dimensions and load

Key figures

Figures below come from the same catalogue pages as the hardware set. Load ratings are those published for the components, not a guaranteed window rating: the sash size, glass weight and profile all affect the final limit.

Window type
Inward-opening side-hung casement
Locking
Multi-point lock on one side, 2 locking points
Recommended sash
600 × 1200 mm
Maximum sash
750 × 1500 mm
Hinges
2 pivot hinges OHL.H-4024
Rated load
window hinges up to 80 kg (catalogue p. 01)
Profile groove
OHL open-in groove, table below

Installation and cutting

Fitting information for the window maker

The information below is what the window maker needs before cutting rods or drilling the profile.

Before you cut or drill

  • The NP300 hardware drawing is reproduced from catalogue p. 25 and numbers the parts to match the set above.
  • The catalogue suggests using a side-hung window limiter with this set to limit the opening angle.
  • Handing and the number of locking points are fixed at order; extra locking plates can be added to suit the profile.

Send the profile drawing

We confirm the groove position, handing and locking points before the set ships. Add the catalogue codes you already use, and we will check them against the current set.

Catalogue reference: Catalogue pp. 19–28; NP300 on pp. 25–26, groove table p. 02

Also in this systemNP100 seriesMicro-ventilation version with a double-point lock (catalogue p. 19).
Also in this systemNP500 seriesTop and bottom locking with a turning support (catalogue p. 28).

Match this set to your window

Tell us the window type, the profile groove and the sash size. We will confirm the set, the codes and the quantity for your next production run.