Blum 71B7550D CLIP top BLUMOTION 125° thick and profiled-door hinge – Onyx Black

The Blum 71B7550D is a specialist concealed hinge for thick, profiled and mitred overlay cabinet fronts. Its 125° opening angle and zero-protrusion position at 90° can help keep the open door clear of the cabinet opening when the complete installation is correctly planned.

The Onyx Black finish suits dark cabinetry and contemporary furniture interiors. Integrated BLUMOTION provides controlled closing, and the damping function can be deactivated on individual hinges when less resistance is required.

Technical details

• Blum part number: 71B7550D
• Hart Wholesale SKU: HIO71B7550D
• Type: CLIP top BLUMOTION concealed hinge
• Application: overlay thick, profiled or mitred cabinet front
• Opening angle: 125°
• Zero protrusion: at 90° in a correctly planned overlay application
• Closing action: spring closing with integrated, switchable BLUMOTION
• Hinge-cup fixing: screw-on
• Hinge-cup diameter: 35 mm
• Minimum cup drilling depth: 11.7 mm
• Cup drilling distance: 3–8 mm for the overlay application, subject to planning
• Side adjustment: ±2 mm
• Depth adjustment: +3/-2 mm
• Height adjustment: through the selected mounting plate
• Material: steel
• Finish: Onyx Black
• Quantity: one hinge
• Mounting plate: supplied separately

Planning thick and profiled fronts

This hinge is not a universal fit for every door thickness. The front profile, radius, cup drilling distance, mounting-plate height, required gap and surrounding clearances must be considered together.

Blum planning information includes front thicknesses from 29 mm to 40 mm. Unrestricted 125° applications are commonly planned around fronts up to approximately 31 mm, while thicker or more heavily profiled fronts may need additional clearance or a restricted opening angle. Complete a trial installation before machining every door.

Understanding zero protrusion

Zero protrusion describes the door position at 90° in a correctly planned overlay application. At this position, the door remains clear of the cabinet opening, helping internal drawers and pull-out shelves pass the door.

The door continues travelling beyond 90° towards the maximum 125° position, so clearance from walls, neighbouring doors, handles and projecting worktops must still be checked.

Mounting plate and fixing

The hinge has a screw-on cup, not a screw-on mounting plate. It connects to a compatible Blum CLIP mounting plate, which is supplied separately. Select the plate height for the required overlay and cabinet construction.

This listing contains one hinge. Cup-fixing screws, the mounting plate, opening-angle restriction components and decorative cover caps are supplied separately.

For the verified nickel counterpart, see the Blum 71B7550D 125° thick-door hinge. For a wider opening angle on suitable standard-thickness fronts, compare the Onyx Black 71B7550 155° hinge. Browse the Blum CLIP top hinge range.

Frequently Asked Questions

What doors is the Blum 71B7550D designed for?

It is designed for thick, profiled and mitred overlay cabinet fronts. It is not an aluminium profile-frame hinge or a universal replacement for every standard cabinet hinge.

What does zero protrusion at 90° mean?

In a correctly planned overlay application, the open door remains clear of the cabinet opening at 90°, allowing internal drawers and pull-out shelves to pass the door.

Does the hinge open beyond the zero-protrusion position?

Yes. Its maximum opening angle is 125°. The door continues moving beyond the 90° zero-protrusion position, so surrounding clearance must be checked.

What drilling is required?

The screw-on hinge cup requires a 35 mm hole with a minimum drilling depth of 11.7 mm. Blum specifies a 3–8 mm drilling distance for the overlay application, subject to the complete installation geometry.

What is the maximum suitable door thickness?

There is no universal maximum because suitability depends on the front profile, drilling distance, required gap and opening angle. Blum planning tables include fronts from 29 mm to 40 mm, but thicker applications may require additional clearance or a restricted opening angle.

Can the soft-close action be switched off?

Yes. The integrated BLUMOTION mechanism can be deactivated on individual hinges using the switch on the hinge cup.

Are the mounting plate and screws included?

No. One hinge is supplied. The compatible CLIP mounting plate, cup-fixing screws, opening-angle restriction components and decorative cover caps are available separately.