Heavy Duty Concealed Window Hinge 90 / 180 Degree
Key points
- Carries 40-50kg door leaves on heavy thermal-break frames
- Concealed body stays hidden when the leaf is closed
- Drops into standard 4.0mm and 5.0mm Euro grooves
- Four variants cover 90 and 180 degree opening layouts
- Polished stainless steel resists rust in wet climates
- Sold by the pair and packed for export, making it straightforward to specify complete window sets
- Window fabricators can hinge heavy double-glazed sashes without a visible hinge line, matching the flush facade detail architects specify
- Aluminium window makers can offer a flush closed leaf across a range of sash weights
- Fabricators can standardize the pair across inward and outward opening layouts, so a job sheet does not need a different hinge for each leaf
| Material | Stainless Steel |
| Type | Concealed H-Type Hinge |
| Body Thickness | 4 mm |
| Groove Compatibility | 4.0 mm / 5.0 mm Euro Groove |
| Load Capacity | 40 kg (90 deg) / 50 kg (extended & 180 deg) |
| Opening Angle | 90 deg / 180 deg |
| Finish | Polished |
| Unit | Pair |
| MOQ | 50 pairs |
| Price basis | FOB China |
| Payment | T/T bank transfer |
| Packing | Export carton with moisture-resistant packing |
| Sample | Available before a bulk order |
| Lead time | Confirmed in your quotation |
Product detail
Heavy duty concealed hinge for thermal-break aluminium doors and windows, made from stainless steel and finished by polishing for a clean bright surface. The H-type body sits inside the frame and sash so nothing is visible when the leaf is closed. Four variants are stocked to match different frame profiles and loads: a 4.0mm Euro-groove 90 degree version rated at 40kg, a 5.0mm extended Euro-groove 90 degree version rated at 50kg, a double 4.0mm Euro-groove 180 degree version rated at 50kg, and a screen-window concealed 180 degree version. Body thickness is 4.0mm and the unit is sold by the pair. The hinge fits standard 4.0mm and 5.0mm Euro grooves, so it drops into common PVC and aluminium window systems and suits inward-opening, outward-opening and concealed installation layouts. Applications include heavy thermal-break window and door leaves, cabinet fronts and insect screen panels. Packed as an export-ready supply with a 50 pair minimum order. Window installers can match a replacement hinge to the groove already in the frame, so a worn hinge is renewed without stripping out the sash or refitting the glass. Aluminium fabricators use the pair on tilt-and-turn and casement sashes where a surface hinge would show on the frame, and the concealed body also leaves the reveal clear for a seal or a drip detail.
