Soft-Close Dampers as an Alternative to Hettich — Compatible & Matching

A soft-close system slows down the closing movement of cabinet doors or drawers using an integrated hydraulic damper, preventing harsh slamming.

When damping deteriorates on existing cabinets, a drawer jams, or a hinge wears out, replacing the fittings is often necessary. In professional furniture assembly and demanding repairs, selecting the correct replacement parts becomes essential. When searching for a functional alternative to Hettich, you must pay close attention to exact technical parameters such as the hole pattern, cup diameter, and mounting application. furnica fittings are compatible with Hettich in many instances and can be integrated into existing furniture carcasses as an exact replacement, provided the fundamental dimensions match.

What to Look For Regarding Compatibility: Dimensions and Hole Patterns

Replacing furniture fittings requires precision. For decades, the industry has agreed on specific standards that facilitate cross-brand replacement. The most important foundation for this is System 32. This standardised line-boring system defines the spacing between drill holes in the furniture carcass. The drilled holes have a centre-to-centre distance of exactly 32 mm. The front line of holes is generally set 37 mm back from the front edge of the carcass. If the existing fittings were installed according to this grid, replacement components from furnica will fit Hettich drillings.

Concealed Cup Hinges: Diameter and Mounting Application

With hinges—technically referred to as cup hinges—the diameter of the recessed hole in the cabinet door is the critical dimension. The standard for kitchen and wardrobe cabinets is a cup diameter of 35 mm. Less commonly, usually on very small or lightweight doors, 26 mm is found. The depth of the cup hole typically ranges from 11.5 mm to 12.5 mm.

The opening angle is equally significant. Standard doors generally utilise concealed hinges / cabinet hinges 110 degrees. For wide-angle applications, such as cabinets with internal drawers, 155° or 165° is required.

To identify the correct replacement part, the mounting application must also be determined:

• Full overlay (straight arm): The door sits almost entirely over the side panel of the carcass when closed.
• Half overlay (cranked arm): Two doors share a single central carcass divider (twin door arrangement).
• Inset (inset application): The door closes flush within the carcass frame between the side panels.

If these parameters match, you can use concealed hinges / cabinet hinges with damping (Soft Close) as a direct replacement for defective original parts.

Drawer Runners: Extension Type and Guides

With drawers, the mechanical components are exposed to higher dynamic loads. Here too, furnica runners can be used as an alternative to Hettich slides, provided the installation dimensions and operating principles align.

First, distinguish between the extension types. A full extension runner pulls out 100% from the carcass, granting unrestricted access to the entire contents right to the back corner. In contrast, a partial extension runner opens the drawer to approximately 75%. When replacing old runners, professionals routinely choose full extension drawer runners to maximise convenience.

Runner lengths are generally graded in 50 mm increments, with standard sizes ranging from 250 mm - 800 mm. With the drawer closed, measure the depth of the old runner along the carcass wall.

Technically, a distinction is made between different guide types. Ball bearing runners are usually side-mounted on the drawer and support loads from 30 kg to over 45 kg, depending on the model. When drawer runners with damping are installed, a hydraulic cylinder cushions the momentum of the drawer over the final centimetres and pulls it gently shut.

High-specification furniture frequently uses undermount runners. Here, the mechanism sits concealed beneath the drawer base. Compatible undermount drawer runners are also available to screw directly into the existing 32 mm grid of the carcass. Important: The internal carcass width and the material thickness of the drawer sides (usually 16 mm or 19 mm) must be strictly observed during replacement.

Flap Fittings: Force in Newtons

For top wall units with lift-up flaps, gas struts are often used instead of traditional hinges. When the flap no longer stays open, the pressure inside the cylinder has escaped. Selecting the replacement part here is determined not by the hole pattern, but by the lifting force, specified in Newtons (N). The required force depends on the weight and height of the flap. A gas strut rated at 250 N will support lighter MDF flaps, whilst large solid wood fronts often require 350 N or more. Check the N value printed on the old cylinder to order the precisely matched replacement fitting.

Retrofitting and Installation: How to Achieve a Successful Replacement

Replacing a defective hinge in furniture assembly is like changing a spark plug in a workshop: with the correct component and accurate measurements, it is purely routine. To replace fittings or retrofit soft-close damping, you will need the following tools:

• Cordless screwdriver or cross-head screwdriver (size PZ2)
• Rule or vernier calliper
• Bradawl or centre punch for marking new screw holes, if required

Retrofitting Dampers

If existing Hettich hinges are still structurally sound but slam shut, replacing the entire cup hinge is not strictly necessary. A cost-effective solution is retrofitting clip-on dampers or standalone screw-on dampers. A door damper is either clipped directly onto the existing cruciform mounting plate (where compatible) or screwed as an independent component to the side of the carcass. It physically cushions the door before it strikes the carcass.

Replacing Cup Hinges Completely

1. Loosen the release or adjustment screw on the mounting plate to detach the door and hinge arm from the carcass.
2. Unscrew the old cup hinge from the 35 mm hole in the cabinet door.
3. Insert the new soft-close hinge into the recess. Ensure it sits at an exact 90-degree angle to the door edge.
4. Secure it using suitable wood screws (typically 3.5 x 15 mm or 4 x 16 mm).
5. Replace the mounting plate inside the carcass, utilising the existing 5 mm System 32 drillings.
6. Clip the door into place and adjust the reveal alignment using the depth, height, and lateral adjustment screws on the hinge arm.

Frequently Asked Questions (FAQ)

Can I combine an old Hettich hinge and a new furnica hinge on the same door? Technically this is often feasible if the kinematic movement matches precisely. In professional practice, however, replacing all hinges on a single door at the same time is strongly advised. Differing spring tensions or damping resistance can otherwise cause the door to twist or lead to premature wear on the new hinge.

Is soft-close the same as push-to-open? No. These are entirely opposite mechanisms. Soft-close cushions a closing door or drawer and pulls it gently shut. Push-to-open (also known as tip-on) is an ejection mechanism designed for handleless fronts: pressing the front triggers the door or drawer to pop open. Both mechanisms cannot be combined on standard mechanical runners.

How do I measure the cup diameter correctly? Remove the old hinge from the door. Using a vernier calliper or an accurate rule, measure the diameter of the circular recessed hole in the door. In 95% of standard furniture applications, this dimension is exactly 35 mm.

Will the screw holes on the new hinge always line up? The main 35 mm cup hole is standardised. However, the position of the two small lateral fixing screws (commonly spaced at 45 mm, 48 mm, or 52 mm) can vary slightly between manufacturers. If the old screw holes do not align precisely, the new hinge can easily be secured slightly offset into the substrate (chipboard or MDF) using new wood screws.