Product record

B80 three-dimensional adjustable concealed door hinge

Three-dimensional adjustable concealed door hinge, model B80, rated for an 80 kg door with two hinges, for concealed installation on interior doors.

Identity

Each value linked to its published evidence

Fact	Value	Evidence
Material	Unknown	—
Finish	Unknown	—
Process	Unknown	—
Maximum door weight	80 kg	`src-b80-manual`
Required hinge count	2	`src-b80-manual`
Minimum door thickness	38 mm	`src-b80-manual`
Maximum door width	1000 mm	`src-b80-manual`
Maximum door height	2300 mm	`src-b80-manual`
Nominal length	165 mm	`src-b80-manual`
Nominal width	30 mm	`src-b80-manual`
Height adjustment (±)	3 mm	`src-b80-manual`
Side adjustment (±)	2.5 mm	`src-b80-manual`
Depth adjustment (±)	1.5 mm	`src-b80-manual`
Opening angle	Unknown	—
Direct weather exposure supported	No	`src-b80-manual`
Machining note	The 165 × 30 mm values describe the machining envelope; stepped depths and radii remain defined by the corresponding drawing rather than by these two values alone.	`src-b80-manual`

Fact	Value	Evidence
Intended use	Concealed installation for interior doors.	`src-b80-manual`
Contents	hinge (1 piece), cover plate (4 piece), 5 × 30 mm countersunk self-tapping screw (8 piece), S4 hex key (1 piece), instruction sheet (1 piece)	`src-b80-manual`

Not for direct rain or snow exposure. src-b80-manual
Confirm door-closer compatibility before use. src-b80-manual
The documented contents are component information from the installation manual, not a confirmed packing-unit specification. —

Each source qualifies only the field paths listed beside it. Paths link back to the fact they support.

Source	Type	Supports	Recorded	Freshness
`src-b80-manual` B80 installation manual (Chinese)	factory_material	`model` `intended_use` `specifications.nominal_length_mm` `specifications.nominal_width_mm` `specifications.maximum_door_weight_kg` `specifications.required_hinge_count` `specifications.minimum_door_thickness_mm` `specifications.maximum_door_width_mm` `specifications.maximum_door_height_mm` `specifications.height_adjustment_plus_minus_mm` `specifications.side_adjustment_plus_minus_mm` `specifications.depth_adjustment_plus_minus_mm` `specifications.direct_weather_exposure_supported` `specifications.machining_note` `contents`	2026-08-18T00:00:00Z	current
`src-b80-factory` Factory statement relayed by the project owner	factory_statement	`factory.location.city` `factory.location.province` `factory.location.country` `commercial.packaging_available`	2026-08-18T00:00:00Z	current