ASSA ABLOY Introduces Door Closers With Close-Motion® Technology

The world can be a noisy place. Sometimes the technologies users trust to keep the peace, end up making the problem worse. No building can do without doors, but automated settings for secure or fire-regulated closing are often so strong that it causes the door to slam into its frame. Such regular loud noise impacts the well-being, concentration, rest patterns, and more of every building user.

ASSA ABLOY has developed a solution to combat this: Door closers with Close-Motion® technology. They shut single- or double-leaf doors tight, almost inaudibly, ensuring a quieter, secure environment for everyone.

The negative impact of noise

Noise is an often-underestimated stress factor. Noise protection solutions can improve the quality of life in the short and long term. The German Acoustical Society (DEGA) regularly examines its negative consequences during their annual International Noise Awareness Day.

Even low noise levels can put the human body under stress. For example, “the University of Michigan’s Occupational Health Nursing Program found that chronic noise in the workplace caused an increase in blood pressure and heart rate".

Improving the acoustics

Improving the acoustic environments of new and existing health care facilities to enable the highest quality of care

Another study led by a Harvard Medical School sleeps expert explored “the disruptive capacity of a range of hospital sounds on sleep”.

They concluded it was “essential to improving the acoustic environments of new and existing health care facilities to enable the highest quality of care”. A closing door was among 14 specific background sounds studied.

Environmental noise pollution

“Environmental noise is not a trivial problem,” says Andreas Gmelin, Product Management, and Business Development Director, EMEIA Door Closer Product Unit at ASSA ABLOY Opening Solutions.

“It is important to avoid unnecessary acoustic pollution at the workplace, in educational and cultural facilities, in homes and hotels, as well as hospitals to help both peaces of mind and productivity.”

A solution for noise-free door closing

Close-Motion technology combines safety, accessibility, and convenience into door closer housing

With Close-Motion, ASSA ABLOY has developed a door closing technology that operates almost silently and is unique to the market. A Close-Motion door closer quickly closes the door up to a narrow gap, then softly dampens it and pulls it slowly, quietly, and securely to shut tight. All users hear is a soft click. Close-Motion works reliably in even the most difficult conditions, handling wind pressure, draughts, or air suction effects with ease.

The result is reduced environmental noise, increased building security, and minimized energy waste. Close-Motion technology combines these safety, accessibility, and convenience benefits in a single component that is fully integrated into the door closer housing. This eliminates the need to install any additional components and preserves the appearance of the doors.

Easy installation and no need for later adjustments

In creating Close-Motion components, ASSA ABLOY product designers prioritized easy installation and practical adjustment options. A universal mounting plate, standardized fixing positions, and drilling templates speed up installation.

The height-adjustable spindle prevents installation mistakes and enables later adjustment without cost or time delays. In just a few steps, the opening damping and closing speed, as well as the closing force, can be adjusted to meet a door’s precise needs.

Door settings standards

Settings, once made, are also long-lasting. Temperature fluctuations, for example, do not need extra maintenance. The door closer continues to work according to regulations without readjustment. ASSA ABLOY Close-Motion door closers are tested according to EN 1154/EN 1158 standards for fire and smoke protection doors.

“Close-Motion brings peace when people need it,” adds Andreas Gmelin. “When they are working, learning, relaxing, recovering or sleeping.”