PRODUCT DESCRIPTION
Blum 71B9780 CLIP top BLUMOTION Inset Thick-Door Hinge
The Blum 71B9780 is a specialist 95° concealed hinge for thick and profiled furniture doors in an inset application. It allows a compatible door up to 32mm thick to close within the cabinet opening, leaving the cabinet sides visible around the front.
The hinge has a 35mm knock-in cup with integral fixing dowels for efficient production installation. BLUMOTION soft close is built into the hinge, providing smooth, controlled closing without requiring a separate damper.
This is a thick/profile-door hinge for timber, MDF, chipboard and suitable composite furniture fronts. It is not a narrow aluminium-frame hinge.
Key features
- Genuine Blum part number 71B9780
- Designed for thick and profiled furniture doors
- Suitable for compatible doors up to 32mm thick
- Inset door application
- 95° opening angle
- Integrated BLUMOTION soft close
- BLUMOTION can be switched off at the hinge
- Sprung and self-closing hinge action
- 35mm knock-in cup with fixing dowels
- Tool-free CLIP connection to the mounting plate
- Three-dimensional door adjustment
- Spiral depth-adjustment screw
- Nickel-plated finish
Technical specification
| Hart Wholesale stock code | HI71B9780 |
|---|---|
| Blum part number | 71B9780 |
| Product range | CLIP top BLUMOTION |
| Door application | Inset |
| Recommended door type | Thick or profiled furniture door |
| Maximum door thickness | Up to 32mm, subject to planning and trial fitting |
| Opening angle | 95° |
| Closing action | Sprung and self-closing |
| Soft close | Integrated, switchable BLUMOTION |
| Cup diameter | 35mm |
| Nominal cup depth | 13mm |
| Cup fixing | Knock-in / press-in dowels |
| Boring pattern | Blum three-hole knock-in pattern with 45mm fixing centres |
| Door drilling distance | Approximately 3–7mm, selected according to the planning calculation |
| Cabinet connection | Tool-free CLIP mounting-plate connection |
| Side adjustment | Approximately ±2mm |
| Depth adjustment | Approximately +3/-2mm |
| Height adjustment | Approximately ±3mm, depending on mounting plate |
| Material | Steel |
| Finish | Nickel plated |
| Supplied | One hinge with integral knock-in dowels |
| Mounting plate | Not included; order separately |
Designed for inset thick doors
An inset door closes inside the cabinet opening rather than covering the cabinet sides. This requires different hinge-arm geometry and mounting-plate positioning from an overlay or half-overlay installation.
The 71B9780 is designed to provide the additional clearance required by thick and profiled doors. However, the maximum 32mm thickness does not guarantee that every door profile will clear the cabinet when opened.
Edge mouldings, projecting profiles, door radius, drilling distance and the cabinet construction all affect the required gap. Use the Blum planning table and complete a trial installation before drilling a production batch.
Knock-in cup fixing
The hinge cup has integral dowels that are pressed into a correctly prepared three-hole boring pattern. This produces a consistent production fixing without separate cup screws.
Knock-in does not mean that the hinge should be struck directly with a hammer. Use suitable Blum insertion equipment or a correctly set boring and insertion machine to press the cup squarely into the door.
This fixing differs from INSERTA. An INSERTA hinge can be locked into its prepared holes using the lever on the cup, whereas the 71B9780 relies on press-in dowels.
Integrated BLUMOTION soft close
BLUMOTION is integrated into the hinge and slows the door during the final stage of closing. This gives thicker furniture doors a quieter, more controlled closing action and reduces impact on the cabinet.
The damping function can be switched off at an individual hinge when required. This is useful where a smaller or lighter door does not require damping from every hinge.
Use matching CLIP top BLUMOTION hinges throughout each door. Blum advises that CLIP top BLUMOTION and non-BLUMOTION hinges should not be combined on the same door.
Inset mounting-plate position
At the factory hinge setting, Blum’s planning guidance requires the mounting-plate fixing position to be moved back from the cabinet front by the door thickness plus 1.5mm.
This is a planning starting point rather than a substitute for a trial installation. The final position depends on the mounting-plate height, drilling distance, door profile and required gaps.
Adjustment and door removal
The hinge arm clips onto a compatible Blum mounting plate without tools. This allows the door to be attached or removed without disturbing the plate or the adjustment settings.
Side, depth and height adjustments allow the finished door position and gaps to be refined after installation. The mounting plate is not included and must be ordered separately from our Blum CLIP top mounting plates.
Related Blum hinges
- Blum 71B9650 half-overlay thick-door BLUMOTION hinge
- Compatible Blum CLIP top mounting plates
- Browse all Blum CLIP top hinges
- Read our Blum hinge selection guide
Frequently asked questions
What type of door is the Blum 71B9780 designed for?
It is designed for thick and profiled furniture doors up to 32mm thick in an inset application. Compatibility depends on the door profile, cup position and opening clearance.
What does inset mean?
An inset door closes inside the cabinet opening. The cabinet sides remain visible around the closed door front.
Is this an aluminium-frame hinge?
No. The 71B9780 uses a conventional 35mm knock-in cup for timber, MDF, chipboard or suitable composite furniture doors.
What is the difference between knock-in and INSERTA?
Knock-in dowels are pressed into the door using insertion equipment. INSERTA uses a lever on the cup to lock the hinge into its prepared holes without tools or a press.
Is BLUMOTION included?
Yes. BLUMOTION soft close is integrated into the hinge and can be switched off at an individual hinge when required.
Is the mounting plate included?
No. A compatible Blum CLIP mounting plate must be ordered separately. Select the plate height according to the cabinet construction and required door position.
TECHNICAL DETAILS
- Application: Inset
- Finish: Nickel Plated
- Colour: Nickel
- Material: Steel
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