Concealed Hinge Replacements for Hettich: Check Drilling Pattern 52x5.5 mm & Ø 35 mm

A suitable replacement for a Hettich hinge strictly requires an exact match of two dimensions: the 35 mm cup diameter and the specific drilling pattern with a 52 mm hole distance and a 5.5 mm cup distance.

Introduction: Precision When Replacing Fittings

When a cabinet hinge wears out or breaks, the installer or joiner faces the task of sourcing an exact replacement. The market for concealed hinges is highly standardised, yet it features manufacturer-specific differences in mounting dimensions. A frequently encountered standard in European furniture is the Hettich system.

To replace such a hinge without having to drill new holes into the carcase side or the furniture front, the geometric specifications of the original fitting must be transferred exactly to the replacement part. This primarily concerns the cup hole routed into the door and the position of the fixing screws. If these parameters match, the defective component can be replaced seamlessly. This guide breaks down the technical criteria relevant when selecting a compatible replacement hinge for the 52 x 5.5 mm drilling pattern.

The Key Buying Criteria for Hinge Replacement

Replacing fittings requires measuring with a vernier calliper. The following parameters must be checked before fitting a new hinge.

The Cup Diameter

The core element of the hinge sits inside the door front. The standard cup hole in modern furniture is 35 mm. Less commonly, often only on lightweight mirrored cabinets or very narrow frames, you will find 26 mm. The routing depth for a 35 mm cup is typically 11.5 mm to 12.5 mm.

The Drilling Pattern: 52 mm x 5.5 mm

The drilling pattern acts like the mechanical fingerprint of the hardware manufacturer – if it deviates, the screws will miss the holes or split the base material. The Hettich-compatible drilling pattern is defined by two values:

• Hole distance: The distance between the centres of the two fixing holes next to the cup is exactly 52 mm.
• Cup distance: This is the dimension from the edge of the 35 mm cup hole to the imaginary centre line of the two fixing holes. In this system, this is 5.5 mm.

The Overlay Type (Door Application)

The position of the door relative to the carcase side determines the crank of the hinge arm. Three basic types are distinguished and must never be mixed up:

• Full overlay: When closed, the door covers nearly the entire front edge of the carcase side panel. The hinge arm is straight (0 mm crank).
• Half overlay (dual door): Two doors share a single central carcase side. Each door covers only half of the front edge. The hinge arm is cranked (usually 9.5 mm).
• Inset: The door does not sit on the carcase edge, but sits flush between the carcase panels. The hinge arm has a pronounced crank (usually 16 mm).

The Mounting Plate

The hinge is clipped or screwed onto a cruciform mounting plate on the carcase. Here, too, the dimension is crucial. Most plates use System 32, a standardised line of holes with a 32 mm drilling distance and a 37 mm distance from the front carcase edge.

Types and Options Overview

Once the basic dimensions (35 mm cup, 52 x 5.5 mm drilling pattern) are established, the functionality of the replacement hinge can be chosen. Within compatible Concealed Hinges / Cabinet Hinges, there are various designs for specific applications.

Opening Angle

The standard opening angle for conventional cabinet doors is around 110°. For specific room layouts or furniture designs, different angles are required:

• Standard: Concealed Hinges / Cabinet Hinges 110 Degrees cover 80% of all applications.
• Wide angle: For doors that need to swing completely clear, Concealed Hinges / Cabinet Hinges 155 Degrees or Concealed Hinges / Cabinet Hinges 165 Degrees are suitable. These are often designed as zero-protrusion hinges.
• Corner cabinets: For angled carcases or corner solutions, angles such as Concealed Hinges / Cabinet Hinges 45 Degrees or Concealed Hinges / Cabinet Hinges 90 Degrees (for blind corner panels) are used.

Closing Mechanism: With or Without Damping

A replacement fitting often provides an opportunity for a technical upgrade. Concealed Hinges / Cabinet Hinges with Damping (Soft Close) feature an integrated hydraulic cylinder in the hinge cup or hinge arm. This slows the door down over the last few centimetres and pulls it shut silently. Note: This damping function is not the same as tip-on or push-to-open mechanisms, which work in the opposite way by pushing the door open upon pressing.

Which Hinge for Which Scenario? (Decision Guide)

To avoid incorrect purchases, base your choice on the existing furniture construction:

• Scenario 1: Classic wall-mounted kitchen cabinet, single door.
• Choice: 110° opening angle, Full overlay.
• Scenario 2: Wardrobe with a continuous centre partition and doors on both sides.
• Choice: 110° opening angle, Half overlay.
• Scenario 3: Larder unit with internal pull-outs.
• Choice: 155° or 165° opening angle. If Full Extension Drawer Runners are fitted behind the door, the door must swing completely clear of the internal opening (zero protrusion) so the drawers do not scrape against the inside of the door when pulled out.
• Scenario 4: Heavy MDF or solid wood door.
• Choice: Ensure that for a door height of 1600 mm or more, at least three hinges are used, and for over 2000 mm, four to five hinges are fitted to safely transfer the weight into the carcase side.

Installation Advice: Measure, Check, Fit

Replacing a hinge is a precise yet straightforward task.

Required tools:

• Vernier calliper
• Screwdriver (PZ2 or TX, depending on the screws used)
• Bradawl / awl (if required)

Step-by-step procedure:

1. Removal: Loosen the screw on the cruciform mounting plate or press the clip-release lever at the back end of the hinge arm to remove the door. Then unscrew the cup from the door.
2. Measure: Using the vernier calliper, check the diameter of the round routed recess in the door. It must measure exactly 35 mm.
3. Verify drilling pattern: Measure the distance between the two small screw holes next to the cup (centre to centre). If this gives 52 mm, you have identified the correct system.
4. Fitting: Insert the new replacement hinge into the 35 mm hole. Ensure exact perpendicular alignment to the door edge. Fasten the cup with suitable chipboard screws (e.g. 3.5 mm x 15 mm).
5. Adjustment: Hang the door back on. Use the 3D adjustment screws on the hinge arm:

• Depth adjustment: Moves the door closer to or further away from the carcase (gap size).
• Height adjustment: Regulated via the slotted holes on the mounting plate.
• Side adjustment: Adjusts the reveal between two doors or aligns a crooked door parallel to the carcase side.

FAQ – Frequently Asked Questions About Hinge Replacement

Can I use any 35 mm hinge as a replacement? No. While the 35 mm hole diameter is almost standard across the industry, the positions of the fixing screws (the drilling pattern) vary considerably. A hinge with a 45 x 9.5 mm drilling pattern will not fit pre-drilled holes made for 52 x 5.5 mm.

How do I know whether I need a full overlay or a half overlay? Look at the closed door from the outside. If the door covers almost the entire front edge of the carcase side panel (approx. 15 mm to 17 mm overlay), it is a full overlay. If the door shares the panel edge with an adjacent door and covers only around 7 mm to 9 mm, you need a half overlay.

Can I mix soft-close and unsprung/standard hinges on one door? Technically, this is possible and is often done on lightweight doors for cost reasons (one soft-close hinge, one standard hinge). However, for smooth, optimal closing action on heavy doors, matching fittings should always be used throughout.

Do I also have to replace the mounting plate on the carcase? It is strongly recommended. The clipping mechanisms between the hinge arm and the mounting plate often differ slightly even between similar models. To ensure a secure hold, hinge and plate should always be fitted as a matching set. Mounting plates typically use the standardised System 32, meaning existing screw holes in the carcase can be reused.

Matching Products & Categories for Your Project

To find the correct replacement fitting with the 52 x 5.5 mm drilling pattern for your furniture, navigate directly to the category suitable for your overlay type and opening angle:

• Overview of all standard replacement parts: Concealed Hinges / Cabinet Hinges
• For standard cabinet doors: Concealed Hinges / Cabinet Hinges 110 Degrees
• For internal drawers: Concealed Hinges / Cabinet Hinges 155 Degrees
• For silent closing: Concealed Hinges / Cabinet Hinges with Damping (Soft Close)