Blum 71B4500C CRISTALLO 110° BLUMOTION Glass Door Hinge – Onyx Black

The Blum 71B4500C CRISTALLO hinge provides a clean concealed-hinge solution for frameless glass and mirror cabinet doors. Finished in contemporary Onyx black, it combines discreet cabinet hardware with integrated BLUMOTION soft-close for smooth, controlled closing.

The CRISTALLO system avoids the need to drill a hinge-cup hole through the glass. Instead, a separate Blum CRISTALLO adhesion plate is professionally bonded to the back of the glass or mirror front. The hinge then connects to the adhesion plate without tools.

This listing is configured for an overlay glass-door application. Blum’s CRISTALLO system can accommodate different door arrangements through the correct positioning of the adhesion plate, making accurate planning and bonding essential.

Integrated BLUMOTION soft-close

BLUMOTION is built into the hinge boss and provides a smooth, quiet closing movement. The dampening function can be switched off when necessary, which can help achieve consistent closing performance on smaller or lighter glass doors.

The hinge opens to 110° and provides 0-protrusion geometry, making it suitable for cabinets containing internal drawers or pull-out shelves when the installation is planned correctly.

Key features

• Genuine Blum CRISTALLO glass and mirror-door hinge
• Blum part number: 71B4500C
• Hart Wholesale stock code: HIO71B4500
• Onyx black finish
• Designed for frameless glass and mirror cabinet doors
• Configured for an overlay application
• 110° opening angle
• Integrated, switchable BLUMOTION soft-close
• 0-protrusion hinge geometry
• No hinge-cup drilling through the glass
• Tool-free connection to the CRISTALLO adhesion plate
• Tool-free CLIP connection to the cabinet mounting plate
• Three-dimensional front adjustment
• Suitable for glass and mirror fronts approximately 3–8mm thick
• Supplied as one hinge

Adjustment

• Height adjustment: up to ±3mm, depending on the mounting plate
• Side adjustment: up to ±2mm
• Depth adjustment: +3mm to −2mm

Important installation information

The hinge must not be bonded directly to the glass. A compatible Blum CRISTALLO adhesion plate is required and must be attached using an adhesive and bonding process suitable for the particular glass or mirror front.

Blum recommends that the adhesion plate is fitted by an experienced glass manufacturer. Adhesive selection, surface preparation, curing and plate positioning must follow the requirements of the glass and adhesive suppliers.

What must be ordered separately?

• Blum CRISTALLO adhesion plate for the glass or mirror front
• Compatible Blum CLIP mounting plate for the cabinet
• Suitable professional glass-bonding adhesive or bonding service

CRISTALLO adhesion plate and cabinet mounting plate sold separately.

Browse our complete Blum CLIP top hinge range, compatible Blum CLIP mounting plates and genuine Blum cabinet fittings.

Frequently asked questions

Is the Blum 71B4500C glued directly to the glass?

No. A separate CRISTALLO adhesion plate is bonded to the back of the glass or mirror. The hinge attaches to this plate without tools.

Does the glass door need to be drilled?

No hinge-cup drilling is required. The CRISTALLO adhesion plate is bonded to the glass, avoiding the need for a conventional 35mm cup hole.

Is the adhesion plate included?

No. This listing is for one hinge only. The CRISTALLO adhesion plate must be selected and ordered separately.

Is the cabinet mounting plate included?

No. A compatible Blum CLIP mounting plate for the cabinet side must also be ordered separately.

What glass thickness is suitable?

Blum’s planning information covers glass and mirror fronts approximately 3–8mm thick. Suitability must also be confirmed with the glass and adhesive suppliers.

Does this hinge have soft-close?

Yes. BLUMOTION soft-close is integrated into the hinge and provides controlled, quiet closing. The dampening function can be deactivated when required.

Can it be used on a mirror door?

Yes. The CRISTALLO system is designed for suitable glass and mirror cabinet fronts, provided the correct adhesion plate and professional bonding process are used.

Can I fit the adhesion plate myself?

Blum recommends that the adhesion plate is bonded by an experienced glass manufacturer. Correct surface preparation, adhesive selection, plate positioning and curing are essential.

Does “glue-on hinge” mean adhesive pads are used?

No. The system uses a purpose-made CRISTALLO adhesion plate and a suitable professional glass-bonding process. It should not be described simply as using adhesive pads.

What does 0-protrusion mean?

When correctly planned, the open door remains clear of the internal cabinet area, helping provide access to inner drawers and pull-out shelves.