{"id":"FR-HNG-A40","slug":"fr-hng-a40","model":"A40","name":"A40 three-dimensional adjustable concealed door hinge","category":"concealed-door-hinge","aliases":["A40 3D adjustable concealed hinge","三维合页 A40"],"summary":"Three-dimensional adjustable concealed door hinge, model A40, nominal size 150 × 25 mm, for concealed installation on interior doors.","intended_use":"Concealed installation for interior flush or unrebated doors, with documented installation cases for timber, steel, and aluminium frames.","material":null,"finish":null,"process":null,"factory":{"public_name":null,"location":{"city":"Foshan","province":"Guangdong","country":"China"}},"specifications":{"nominal_length_mm":150,"nominal_width_mm":25,"maximum_door_weight_kg":null,"required_hinge_count":null,"minimum_door_thickness_mm":null,"maximum_door_width_mm":null,"maximum_door_height_mm":null,"height_adjustment_plus_minus_mm":2,"side_adjustment_plus_minus_mm":3,"depth_adjustment_plus_minus_mm":1,"opening_angle_degrees":null,"direct_weather_exposure_supported":null,"machining_note":"Machining, fastening, adjustment, and cover-plate installation are documented in the installation manual; the 150 × 25 mm nominal size does not describe the complete mortise."},"commercial":{"packaging_available":true,"minimum_order_quantity":null,"price":null,"lead_time_days":null},"contents":null,"limitations":[{"id":"lim-a40-steel-frame","statement":"Steel frames require a fixed receiver.","source_ids":["src-a40-manual"]},{"id":"lim-a40-aluminium-frame","statement":"Aluminium-frame installation depends on a receiver supplied by the frame manufacturer.","source_ids":["src-a40-manual"]}],"media":[{"id":"a40-manual","type":"document","title":"A40 installation manual (Chinese)","url":"https://factoryrecord.com/media/a40-manual/a40-installation-manual-zh.pdf"}],"sources":[{"id":"src-a40-manual","type":"factory_material","title":"A40 installation manual (Chinese)","supports":["model","intended_use","specifications.nominal_length_mm","specifications.nominal_width_mm","specifications.height_adjustment_plus_minus_mm","specifications.side_adjustment_plus_minus_mm","specifications.depth_adjustment_plus_minus_mm","specifications.machining_note"],"recorded_at":"2026-08-18T00:00:00Z","freshness":"current","url":"https://factoryrecord.com/media/a40-manual/a40-installation-manual-zh.pdf"},{"id":"src-a40-factory","type":"factory_statement","title":"Factory statement relayed by the project owner","supports":["factory.location.city","factory.location.province","factory.location.country","commercial.packaging_available"],"recorded_at":"2026-08-18T00:00:00Z","freshness":"current"}],"updated_at":"2026-08-18T00:00:00Z","product_url":"https://factoryrecord.com/products/fr-hng-a40"}