Heavy Duty Concealed Hinges Technical Information

DX61

DX61

DX61 – for loads up to 100kg
DX101

DX101

DX101 – for loads up to 120kg
DX180

DX180

DX180 – for loads up to 200kg
DX200

DX200

DX200 – for loads up to 200kg
DX300

DX300

DX300 – for loads up to 300kg

Heavy Duty Concealed Hinges

Concealed hinges give your door a seamless appearance with clean lines, uninterrupted by protruding hinge knuckles. They’re the ideal choice both in terms of creating a modern, sleek look and maximising safety and security. With no protruding hinges, the door system also offers anti-burglary and reduced ligature benefits. The heavy-duty range of adjustable concealed hinges are designed to suit loads up to 300kg and are styled to suit a wide range of settings.

What are Heavy Duty Adjustable Concealed Hinges?
Heavy-duty concealed hinges from Cooke Brothers are part of the range of adjustable concealed hinges designed to work with heavy loads and heavy traffic environments.

Also known as invisible hinges, this hinge design fits neatly into the door frame and door with a largely flat and seamless finish.

The adjustable element of the concealed hinge range allows doors to be adjusted in any direction while still hung, reducing fitting time and wear and tear on the hinge itself.

Common applications for Heavy Duty Adjustable Concealed Hinges
Heavy-duty concealed hinges are used in a wide range of industrial and commercial settings, as well as in healthcare, secure facilities and other environments where heavy doors are in continuous use such as factories, manufacturing environments and catering.

Healthcare Door Hinges
Healthcare facilities usually require silent, low maintenance and highly durable door hinges which see heavy traffic around the clock and undergo severe stresses such as being knocked, bumped, pulled on, and otherwise put under strain. Heavy-duty adjustable concealed hinges are the ideal hinge for healthcare settings due to their safe and secure fitting, quiet mechanism, and enduring durability.

Catering Environments
The world of catering is a fast-paced and demanding environment requiring doors and hinges which can remain quiet and fully operational under intense regular pressure. Restaurant kitchen doors are a prime example of doors which will see huge usage during serving times and heavy use as the business takes deliveries, prepares tables, and otherwise remains operational outside of service hours. Heavy-duty adjustable concealed hinges are designed to offer everything the catering industry requires from a hinge, and the ability to fit and forget their door hinges for many years at a time.

Available from 100kg to 300kg door weights with a range of fire ratings, plate options and virtual throws, Cooke Brothers have the ideal concealed door hinge for your project.

 

Door Closed
Door closed
Completely invisible from the outside, the concealed hinge is mortised into the frame and the door, making it perfect for concealed door systems.
Door open at 90 degrees
Door open at 90°
As a result of the motion sequence, the back door edge is slightly lifted off from the frame edge.
Door open at 180 degrees
Door open at 180°
The fully open position allows free passage without any restriction.

Four knuckles for strength and security
The four knuckle joints precisely fit together to prevent twisting or tilting, even under high stress making the PIVOTA® an ideal choice for heavy doors.

Five Axes for maintenance free operation
The hinge has five axes and piston guides. These design features ensure long term, maintenance free operation.

High Quality machined construction
All PIVOTA® concealed hinges are engineered from solid aluminium, steel, or stainless steel, providing extra rigidity and enhanced performance of the whole door system.

Excellent product finishes
PIVOTA® hinges are available as satin nickel plated, simulated stainless steel, anodised aluminium. Other finishes on request to minimum quantities.

3 Way adjustment
PIVOTA® can be adjusted in all three directions without the need to remove or interfere with the door.

The clamping plates are designed to allow for precise door adjustment across the following planes:

  • Compression adjustment between door and frame seal
  • Variable height adjustment
  • Lateral plane adjustment


Suitable for fire doors

Many of the hinges within the PIVOTA® range are suitable for fire doors.

Anti-Burglary protection
Specific hinges within the range can be fitted with an anti-burglary protection device.

Benefits of Using Heavy Duty Adjustable Concealed Hinges
This type of hinge offers a range of benefits for applications requiring a reliable hinge with increased strength and durability.

Noise Reduction
Heavy-duty concealed hinges from Cooke Brothers offer extremely quiet operation or minimal disturbance and stress on those living or working in the vicinity of a concealed hinge door.

Aesthetics
Concealed hinges cannot be seen from the outside, creating a flush finish which does not interrupt the original furniture design. This style of hinge offers a modern finish and smooth operation, with enhanced durability to deliver a low maintenance and long-lasting door hinge.

Easy Installation
Adjustable concealed hinges are quick and easy to install, and easy to remove should the door or entrance way be refitted or moved.

Reduce Tamper and Ligature Benefits
Due to its fit and position within the door and frame, this style of hinge has added benefits of being tamper-proof externally and offers reduced ligature benefits, as well as being more aesthetically pleasing.

 

PIVOTA Concealed Hinges are available a wide range of materials and finishes including stainless steel, aluminium, brass and nickel.

The PIVOTA range of concealed hinges are available in a range of aesthetically pleasing finishes suiting a wide range of styles. Standard finishes are velour-nickel plated, stainless steel coloured, aluminium coloured and galvanic finishes are available on request.

Satin Aluminium
Polished Stainless
Satin Nickel Plated
Satin Stainless
Simulated Stainless
Polished Nickel
Chrome Plated
Polished Chrome Plated
Satin Brass
Brass Plated
Antique Brass
Polished Brass
Red Bronze
Light Bronze
Dark Bronze
White Powder Coat
RAL 7021 Black/Grey


RAL colours - A basic range of RAL colours. Custom colours are available upon request.

Epoxy Powder Coating (zinc phosphate BS 3189 - polyester powder coat) to BS and RAL colours, matt or gloss.

Electrophoretic - standard black

 

 

There are many advantages to using the PIVOTA Concealed hinges in your application.

Their sleek four-knuckle joint design means a precise, secure fitting that reduces the chances of twisting or tilting, even under high stress. All forces acting on the kinematic guide are taken up by horizontally located axes which ensure a high level of functional security. These types of concealed hinges can be entirely trusted in all types of application.

PIVOTA Hinge Adjustability
Another great benefit to these concealed hinges is they are 3-Dimensionally adjustable. Their clamping plates with toothing enables load-independent adjustment of the door height and the lateral closing pressure against the seal. They can be adjusted by altering the rebate clearance on the spindles in the door part.

When adjusted, only the positioning of the door is affected leaving the joint mechanics completely untouched. This ensures the highest precision for daily continuous operation.

 

A number of accessories are available for installation in casing frames or closed frame. Safety plates are available with the PIVOTA concealed hinge and can be fully adapted to suit specific needs, ensuring maximum security and stability.

Hinge retainers can also be inserted into the frame in combination with steel frames.

To find out more about the PIVOTA hinge accessories please contact our sales team.

 

Concealed Hinges Performance Table

Model Maximum Door Weight (per pair) Minimum Door Thickness Fire Rating
PIVOTA DX 60 3D 80 kg 44mm FD 30
PIVOTA DX 61 3D 100 kg 44mm FD 30
PIVOTA DX 61 3D + 100 kg 44mm FD 30
PIVOTA DX 100 3D 120 kg 44mm FD 30, FD 60
PIVOTA DX 101 3D 120 kg 44mm FD 30, FD 60
PIVOTA DX 120 3D Extended Throw 150 kg 44mm Non Fire Rated
PIVOTA DX 120 3D 150 kg 44mm Non Fire Rated
PIVOTA DX 180 3D 200 kg 44mm FD 30, FD 60
PIVOTA DX 190 3D 190 kg 44mm FD 30, FD 60
PIVOTA DX 200 3D 200 kg 44mm FD 30, FD 60
PIVOTA DX 300 3D 300 kg 44mm FD 30, FD 60

 

Available PIVOTA Concealed Hinge Materials
We offer a full range of high-quality PIVOTA hinge materials including aluminium and mild steel. This means added stability and strength when in use and ensures the hinges are impact resistant. These materials have low corrosion rates which ultimately increases the PIVOTA concealed hinge lifespan.

Please contact our sales team to discuss bespoke options and bulk orders.