McCoy hinges for uPVC & Aluminium Doors and Windows

The selection and installation of hinges is one of the most important steps in the system's function and operation. It directly impacts:

• The ease of operation for opening and closing the door or window.

• The alignment and sealing of the sash against the frame are crucial for thermal performance and weather‑tightness.

• The potential for sagging, misalignment, and wear over time

• The overall ease of maintenance and adjustment of the system.

McCoy offers the following types of hinges:

1. Flat hinge

2. Butt hinge

3. 3D hinge

1. What is a flat hinge?

A "flat hinge" (also known as a 2D hinge) is a hinge with leaves that are mostly flush to the surfaces of the door and frame and offers little projection. It is a more compact design, which means that this hinge is appropriate in situations that do not require extensive adjustments or bear heavy loads.

Materials and Compatibility for uPVC and Aluminium

As uPVC and aluminium doors and windows are often used for modern frames with slim profiles, the hinges used should also be compatible. For example, hinges must be corrosion-resistant for aluminium and compatible with reinforcement for uPVC.

Advantages:

• Economical than heavy-duty adjustable hinges.

• Easier installation.

• Adequate for lighter doors and windows for typical house use.

Limitations:

• Unsuitable for large aluminium constructions and very heavy doors.

Suitable Instances for Flat Hinges

• uPVC casement windows in residential properties.

• Light aluminium doors with moderate and precise assembly loads.

• Situations where heavy adjustment is not required.

2. What is a Butt hinge?

A butt hinge is a hinge in which a pin connects two leaves. Each door and door frame hinge is set into the door and frame edge and lies flush when the door closes.

In uPVC doors, butt hinges are most of the time fixed to the steel reinforcement of the door frame, or the sash/frame is reinforced and secured with screws. In contrast, for Aluminium, the hinge must be appropriate to the profile and finish (anodised/aluminium) and consider the weight and environmental conditions.

Strengths:

• Provides sufficient support when hinges are fixed into the door frame or sash/frame reinforced

Use Conditions for Butt Hinges

• Standard doors require alignment of the door to maintain the hinge in a fixed position.

• When a 'mortised hinge' is required to be aesthetically pleasing.

• When the hinge is reinforced to the sash or frame of the door or window, and does not exceed the load limitations.

Also read: Butt Hinges for Aluminium Windows by McCoy Hardware

3. What is a 3D hinge?

A 3D hinge is a hinge that offers adjustments in three planes: height, lateral, and depth. Up and down adjustments in relation to the frame, side to side to the frame, and in and out of the frame.

3D hinges are used for precision alignments on systems that require the precision to manage heavy loads, and systems that are frequently adjusted for load-bearing hinges. A 3D hinge offers adjustment to the door gap in 3 planes easily for realignment, and can even be achieved post-installation for systems that require frequent adjustment of hinges.

Pros:

• Excellent long-term alignment and adjustment capability while maintaining a weather seal for reduced drafts.

Cons:

• Higher cost.

When to consider a 3D hinge

• Large aluminium doors and windows, large, heavy sash units, or in a commercial environment.

• Situations where the frame might settle over time and situations where adjustability over a long time is advantageous (e.g., high-end residential or institutional projects).

• When there is a demand for superior performance and durability in a construction.

Also Read: McCoy 3D Hinges for uPVC Casement Doors

Comparison highlights

Adjustment capability for the various hinge types and their associated costs and best use scenarios.

Hinge Type	Adjustment	Capacity	Cost	Best Use Scenario
Flat (2D)	Basic (height and lateral shift)	Lower	Low	Lightweight doors/windows
Butt	Moderate (some offering adjustment)	Moderate	Medium	Standard residential doors/windows where alignment is stable
3D	Complete (height, lateral, depth)	Higher	High	Heavy/large doors/windows

In the beginning, ordinary or unbranded hinges do work, but not for long, as door frames will shift and the hinges will require adjustment constantly.

For enquiries & orders, Contact:

📧 Email: order@mccoygroup.in

📱 Phone: +91-8010434434