Chair mechanisms explained by Office Chairs UK - Office Chairs UK

Chair mechanisms explained

Chair body Automatic Seat and Back Tilt

Movement throughout a day is key to a healthy lifestlye. This mechanism allows you to move freely and comfortably with minimal effort setting tension controls etc. as the chair will automatically adjust itself to suit you.

Chair body Body Balance

As with the above mechanism, the chair weighs you and adjusts the movement tension accordingly.

Chair body Independent Seat and Back Mechanism

This mechanism allows you to independently adjust the seat tilt angle and the back recline angle and fix these in position if required.

Chair body Knee Tilt

Instead of the gas lift being positioned in the center of the chair seat it is placed further forward, which means that the chair will tilt more towards your knees and is generally used on executive seating so that a more reclined position can be achieved. 

Chair body Standard Back Tilt

The seat is static, but the back can be set at various angles of recline.

Chair body Standard Synchronised

The most popular mechanism for office seating allows the user to have the chair moving with them with the seat and back moving together generally in a 1:2 ratio. Many mechanisms also allow the chair to be locked in a reclined position.

Chair body Tilt Mechanisms

Chairs can have a standard reclining tilt mechanism and also a forward tilt mechanism, which is suitable for long hours of keyboard work as your spine will be corrected and resume its natural S-curve.

Chair back Height adjustable backrest

The backrest can be set at various heights to enable the inbuilt lumbar curve to be set individually for the user.

Chair back Adjustable Lumbar Support

Many chairs have inbuilt lumbar curves as above, which can be adjusted via the backrest height. Some have individual lumbar supports that adjust backwards and forwards as well as up and down.

Chair arms Arms: Fixed

Generally loop shaped arms, which take the weight of your arms throughout a day, which helps to alleviate neck and shoulder pain.

Chair body Arms: Height Adjustable

As above but generally T-shaped and more customizable for the user to enable correct positioning for your frame.

Chair body Arms: Height and Pivot Adjustable

As above but with the addition of arm pads that pivot inwards making it easier to rest your arms whilst typing.

Chair body Arms: Height and Width Adjustable

Arms that can be width adjusted for the larger framed person.

Chair body Arms: Multi-Adjustable

These arms are usually height, width, depth adjustable and sometimes also pivoting (please check descriptions for each individual chair).

Chair body Medium back

A standard back for the average height user (please check specifications for each individual chair).

Chair body High back

For those wanting more support at shoulder level, taller users or those wanting to make more of a statement with their chair (please check specifications for each individual chair).

Chair body Soft castors

Special casters for use on hard floors such as wood.

Chair body Hard castors

Standard castors for use on carpet or carpet tiles.