Cento - Upholstered Theatre Armchair

SIDE

Side structure made from sheet steel.
Cladding made from wood particle board panels.
Padding made from a layer of CFC-free polyurethane foam.
Seat rotation joints made of self-lubricating, maintenance-free acetal resin. The seat joints have a damper made of a high-tech elastomer that, at a temperature of 20°C, is able to absorb and transform 95% of the impact energy on the seat into heat during the automatic return to rest position. Thanks to this innovative element, the seat closes extremely quietly and with very little rebound.
The upholstery features a flat-fell seam with double stitching, is not glued to the padding, and is stapled in non-visible locations on the sides.

BACKREST

Backrest structure made with a beech plywood insert.
Backrest padding made from a shaped layer of CFC-free, self-extinguishing polyurethane foam.
Quick-fastening system made of sheet steel and steel retaining clips attaches backrest to sides. This fastening system allows for quick assembly, disassembly, and adjustment of the backrest angle in two positions 5° apart, even after the chair has been installed and without the use of tools, while ensuring safe, solid and tamper-proof locking.
The backrest is fully upholstered (including the back side) and the upholstery, which has a flat-fell seam with double stitching, is not glued, but is fixed with a front mechanical anchoring system (pulled tight) and staples in hidden areas.

SEAT

Birch plywood frame
Lateral supports made of sheet steel and drawn steel rod.
Laminated steel counterweights for gravity return of the seat.
Padding made of a shaped layer of CFC-free, self-extinguishing polyurethane foam.
Fully upholstered seat, with the upholstery featuring flat-fell seam with double stitching, not glued to the padding and covered and closed at the rear with a zip.
Seat is removable without the need for tools.

BASE

Central foot made of steel tube, fixed to the ground by a deep-drawn metal plate.
Rectangular tubular steel support beam

WRITING TABLET

Writing tablet top made of HPL laminate.
Mechanism of the anti-panic writing tablet (when standing up, the slight upward thrust exerted with the legs on the tablet ensures that it starts to move until it reaches its vertical resting position inside the side), consisting of a pressed sheet steel metal structure with a black galvanized finish that contains the internal mechanism, made of a self-lubricating die-cast zinc alloy that guarantees silent and maintenance-free operation. The tablet attachment is made of a steel rod welded to the deep-drawn sheet steel desk support and protrudes from the mechanism. The attachment has an epoxy powder-coated finish. The mechanism also has two springs, one that ensures complete retraction inside the side of the tablet and at the same time its easy removal, and one that allows the automatic vertical rotation of the tablet for anti-panic operation.
The entire tablet unit is fixed to the side so as to simplify assembly and any disassembly operations that can be carried out without having to remove the side of the chair.

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