PRODUCT DESCRIPTION
Blum 79B9980 CLIP top BLUMOTION 95° Overlay Blind-Corner Hinge
The Blum 79B9980 is a specialist 95° overlay blind-corner hinge with a knock-in hinge-cup fixing. It is designed for cabinet doors that overlay the supporting blind-corner frame or muntin and features a 37mm dimension A.
Integrated BLUMOTION provides smooth, controlled soft closing and can be switched off at an individual hinge when necessary. The sprung mechanism pulls the door closed, while the CLIP connection allows the door to be attached to or removed from the mounting plate without tools.
Key features
- Specialist hinge for overlay blind-corner cabinets
- 95° opening angle
- Integrated, switchable BLUMOTION soft close
- Sprung self-closing mechanism
- Knock-in 35mm hinge-cup fixing
- Two pre-mounted dowels for prepared 8mm fixing holes
- 37mm dimension A
- Nickel-plated steel hinge cup and arm
- CLIP attachment for tool-free door installation and removal
- Three-dimensional adjustment with a suitable mounting plate
Technical specifications
| Manufacturer | Blum |
|---|---|
| Manufacturer part number | 79B9980 |
| Blum item number | 05213288 |
| Hart SKU | HI79B9980 |
| Application | Overlay blind-corner door |
| Opening angle | 95° |
| Closing mechanism | Sprung with integrated, switchable BLUMOTION |
| Hinge-cup fixing | Knock-in |
| Hinge-cup diameter | 35mm |
| Hinge-cup drilling depth | 13mm |
| Fixing-hole diameter | 8mm |
| Fixing-hole spacing | 45mm |
| Fixing-hole offset | 9.5mm |
| Permitted cup drilling distance | 3–7mm |
| Dimension A | 37mm |
| Factory-set fixed dimension | 9mm |
| Side adjustment | ±2.5mm |
| Depth adjustment | ±1mm |
| Height adjustment | ±3mm through the mounting plate |
| Finish | Nickel plated |
| GTIN/EAN | 9002617813883 |
| Pack contents | 1 hinge |
Knock-in hinge-cup preparation
The door requires a 35mm hinge-cup hole drilled to a depth of 13mm. Two additional 8mm fixing holes are required at 45mm centres, positioned with a 9.5mm offset from the hinge-cup centre line.
The pre-mounted knock-in dowels are pressed into the prepared fixing holes. Suitable Blum assembly equipment or an appropriate insertion method should be used to ensure that the hinge cup is seated squarely and without damage.
Mounting-plate selection
For the overlay blind-corner application, mounting-plate spacing is determined by the thickness of the supporting frame or muntin:
| Frame or muntin thickness | Mounting-plate spacing |
|---|---|
| 16mm | 6mm |
| 19mm | 3mm |
| 22mm | 0mm |
Door thickness, cup drilling distance and the required minimum gap must also be considered during planning. Blum provides calculation values for fronts from 16–32mm thick and recommends trial fitting for certain thicker-front combinations.
Please note: The mounting plate is not included. Select the mounting-plate spacing according to the actual frame thickness before drilling.
79B9980 or 79B9950?
Both hinges have the same 95° overlay blind-corner geometry and integrated BLUMOTION. Choose the 79B9980 for knock-in hinge-cup fixing or the 79B9950 where a conventional screw-on hinge cup is preferred.
Related hinges
- 79B9950 overlay blind-corner hinge with screw-on fixing
- 79B9580 inset blind-corner hinge with knock-in fixing
- 79B9590 inset blind-corner hinge with INSERTA fixing
- View all Blum CLIP top hinges
Frequently asked questions
Is this a knock-in or knock-on hinge?
The correct Blum description is knock-in. The hinge cup has two pre-mounted dowels that fit into prepared 8mm holes in the door.
Does the hinge include BLUMOTION?
Yes. BLUMOTION soft closing is integrated into the hinge and can be switched off individually when required.
Is the knock-in hinge cup tool-free?
The cup has pre-mounted fixing dowels, but it should be pressed into the prepared door holes using suitable assembly equipment. The separate CLIP connection between the hinge arm and mounting plate is the tool-free door attachment.
Which mounting plate should I use?
Plate spacing depends on the frame thickness. Blum specifies 6mm spacing for a 16mm frame, 3mm for a 19mm frame and 0mm for a 22mm frame at the factory setting.
What is the correct hinge-cup drilling depth?
The 35mm hinge-cup hole requires a drilling depth of 13mm.
TECHNICAL DETAILS
- Application: Overlay
- Finish: Nickel Plated
- Colour: Nickel
- Material: Steel
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