Prime task chair

PRIME office chair is designed for a modern, dynamic
work environment. The design takes into account the findings
of the chair for healthy sitting area and ensure active
and comfortable seating for all types of characters. Above
all this chair is ergonomic and comfortable enabling the
user to concentrate on work. The chair then becomes an
imperceptible part of the workplace environment.
Prime was designed by renowned Dutch designer Kees
de Boer using high quality tried and tested components,
and it complies with the most stringent European standards.
All key components – such as the mechanism, gas
lift, armrests and castors, are produced in Europe, and
the chair is produced and assembled exclusively for
TECHO at the Ahrend facility in the Netherlands.
It comes in a black variant padding without the headrest
and lumbar support (optionally can be added). It is
equipped with a high backrest, high quality synchronous
mechanism, gas cylinder, adjustable 3D armrests, fivearm
ALU cross and wheels. Other colours and materials
available on request.


Adjustable armrests
Can be taken off without the use of tools. The armrest
pad is made of black soft plastic. The armrest can simply
be slid to its desired position by hand; forwards, backwards
and rotating. The required position is held in place
with a click mechanism. Armrests are both height and
width adjustable.

Synchro mechanism

The mechanism is very compact with slim design and
is integrated into the seat. The mechanism is made out
of solid cast aluminium and steel parts, with black plastic
covers. Adjustable travel restriction function allows
the user to limit the tilting of the backrest to 5 different
positions. The chair has no locking except for the most
forward position. Chair is provided with a “self-tensioning
synchro movement mechanism” which is controlled via
a knob underneath the seat.

Seat angle adjustment (optional)

The chair is provided as standard with a self-tensioning
synchro mechanism, and as an option with seat angle adjustment.
This option tilts the seat forward within the same
synchro movement. This adjustment feature has only two
settings (level or tilted).


Standard seat depth adjustment is provided for optimal
support and comfort. The shape of the seat pan is designed
to give optimal support to the user. The seat cushion
is fitted on the seat support and can easily be taken
off. The molded cushion foam and upholstery cover are
separate parts that can be easily replaced without tools.


The chair has a black backrest frame with black mesh.
Technically consists of two frames, which are connected
to each-other. The mesh supports the lower back of the
user and follows the natural shape of the users back.
Lumbar support (optional)
Lumbar support is height adjustable. Gives the user
more additional support on to the lower back for more
individual support and comfort. It is made out of one synthetic
part with an attractive graphic design. The lumbar
support can be added afterwards. No technical tools are

Headrest / backrest extender (optional)

Fully upholstered headrest, in the same fabric as the

Gas lift

The gas lift has a black column and black gas spring.
Dirt (dust) taken up on the oil of the gas lift doesn’t show.


Aluminium base, polished as a standard, or lacquered in
colour as an option. Optional plastic base with the same
shape as the aluminium base.


Castors made from black plastic with hard and soft castor
rims, always provided with a cover.

Manual card

The chair is supplied with a manual card without text,
only drawings. The manual card is stored in a special slotunderneath the seat.

User characteristics

The chair meets standard EN1335

Weight of the chair

– 16,2 kg