Epron Syncron Plus mechanism (ESP) with seat depth adjustment (ESPT) – functions:

• backrest and seat tilt synchronously at the rate of 2:1 (backrest tilt angle of 22° synchronised with seat tilt angle of 11°),
• possibility of backrest and seat lock in 5 positions,
• adjustable backrest tilt force,
• backrest height adjustment – 65 mm,
• seat depth adjustment – 60 mm,
• Anti-Shock – a feature protecting the user's back from being hit by the backrest after the lock is released.

Options for the ESP mechanism:

ESPT: seat depth adjustment – 6 cm
ESPTN: negative seat inclination angle and seat depth adjustment

FS synchronous mechanism – functions:

• free floating possibility – backrest and seat tilt synchronously,
• backrest tilt angle of 33° synchronised with seat tilt angle of 11°,
• possibility of backrest lock in 5 positions,
• adjustable backrest tilt force by means of a bolt,
• adjustable seat depth – 50 mm (additional option),
• Anti-Shock – a feature protecting the user’s back from being hit by the backrest after the lock is released,
• adjustable backrest height – 70 mm,
• smoothly adjustable chair height with a pneumatic lift.

Options for the FS mechanism:

FST: seat depth adjustment – 5 cm

Seat, backrest and headrest

Seat
Swivel version – structure made of 7-layer beech plywood (thickness 10.5 mm), covered with foam (density: 35 kg/m³, thickness: 45 mm) or fire-retardant cast foam applicable for the Manager version. Black seat shell made of polypropylene.
Visitor chair – frame made of 5-layer beech plywood (thickness 6 mm) covered with foam (density: 40 kg/m³, thickness: 35 mm).

Backrest
Operative upholstered version (O-11, O-12)  – backrest structure made of 6-layer beech plywood (thickness 9 mm), covered with 
35 kg/m³ foam (thickness 35 mm). Up&Down – easy one touch backrest height adjustment. Black or white (white for O-12 only) backrest 
shell made of polypropylene.
Operative mesh version (O-13, O-14) – backrest frame: steel tube fi22x1,5 mm powder coated in black as standard. Chromium plated frame 
available as an option. Top link of the backrest made of metal plate (thickness 4 mm). Backrest available in OP mesh (O-13 version) or
upholstered in high quality 3D fabric Runner (O-14), black colour as standard. 
Lumbar support consists of support arm made of 80 × 2,7 mm steel strip, pad structure made of 6-layer beech plywood, thickness 4,5 mm, 
covered on the front with foam, density 40 kg / m³ and thickness 15 mm and 10 mm on the back  part of the pad.
Manager upholstered version (M-21, M-22) – backrest structure made of 6-layer beech plywood (thickness 9 mm), covered with fire--retardant polyurethane injected foam on the front part of the backrest, and partly on the rear part. The rear part of the backrest is fitted 
with adjustable lumbar support integrated with polypropylene backrest shell. 
Lumbar support height adjustment range – 60 mm.
Manager mesh version (M-23, M-24) – backrest frame: steel tube Ø 22 × 1,5 mm powder coated in black as a standard. Chromium plated available as an option. Top link at the top of the backrest made of metal plate (thickness: 4 mm). Backrest available in OP mesh (M-23 version) or upholstered in high quality 3D fabric Runner (M-24 version).
Lumbar support consists of support arm made of 80 × 2,7 mm steel strip, pad structure made of 6-layer beech plywood, thickness 4,5 mm, 
covered on the front with foam, density 40 kg / m³ and thickness 15 mm and 10 mm on the back part of the pad. 
Visitor chair – frame made of 5-layer beech plywood (thickness 7,5 mm) covered with foam (density: 35 kg/m³, thickness: 35 mm). Mesh
backrest version also available. Backrest shell made of polypropylene in black (standard) or white colour

Headrest
Made of plastic or upholstered on one or both sides (the same upholstery type and colour as the seat). Available options:
HR – plastic (applicable to the Operative version only),
HRU – upholstered on one side (applicable to the Operative version only),
HRUA – upholstered on both sides, height-adjustable (60 mm) and tiltable (applicable to the Manager and Operative versions).

Armrests

3-D, height-adjustable with soft PU pads or fixed armrests with soft PU pads.
Swivel chair:

• height-adjustable armrests. Frame made of PA + GF, soft PU pads. Adjustment range: 70 mm. R20N – PU armpad thickness: 14 mm, R20I – PU armpad thickness: 25 mm.
• 3-D adjustable armrests with soft PU pads. Metal elements covered with chrome, integrated with glass fibre reinforced polyamide carcass, with polyurethane pads. Adjustment range – height: 77 mm, pad adjustment (front-back): 60 mm, width adjustment: 37.5 mm.
• fixed armrests: black PA + GF.

Visitor chair:

• fixed armrests integrated with the chair frame.
  Armpads made of PA + GF.

Base

Five-star base made of a combination of polished and white painted aluminium (chromium version), powder-coated aluminium or black nylon..

Swivel chair (mesh backrest) – backrest frame: steel tube Ø 22 × 1.5 mm, powder-coated in ALU or BLACK. Top link at the top of the backrest, made of metal plate (thickness: 4 mm).
Swivel chair with the Ring Base footrest – rim made of steel tube Ø 20 × 1.5 mm, crossbars made of tube Ø 30 × 15 × 1.5 mm. Footrest diameter: Ø 430 mm. Footrest – height-adjustable with a screw.
Ring base versions available – black polyamide ring base + black gas lift, aluminium (powder-coated in RAL 9006) ring base + black gas lift, chromium-plated ring base + chromium-plated gas lift.
Visitor chair cantilever base – steel tube Ø 22 × 2.5 mm.
Mesh version – top link at the top of the backrest, made of metal plate (thickness: 4 mm).
Visitor chair 4-leg – steel tube Ø 22 × 2.5 mm. Mesh version – top link at the top of the backrest, made of metal plate (thickness: 4 mm). The frame can be powder-coated in ALU, BLACK or chromium-plated (galvanic coating).
Intrata Visitor stacking:
Cantilever & 4L – up to 5 pieces.
Minirolls with armrests – up to 4 pieces.
Minirolls without armrests – up to 5 pieces.

Castors / Glides

Swivel version – Ø 50 mm castors for soft floors, optionally: Ø 50 mm castors for hard floors, Ø 65 mm double-link castors for soft floors with a load-controlled braking mechanism, Ø 65 mm double-link castors for hard floors with a load-controlled braking mechanism. Castors conform to the standard EN-12529.
Swivel version with the Ring Base footrest – plastic glides Ø 50 mm. Fall friction brake castors (sit break function for safety concern): when seated, the stem is pressed down onto the ground and stops the chair. It can also become a normal castor (without a break) when the bottom switch is moved to the left.
Visitor version – anti-scratch plastic glides.
Minirolls – self-braking castors Ø 37 mm (while seated, the castors roll free, when released the brakes lock preventing chairs rolling away without control):

• RMH: self-braking castors (minirolls) for soft floors.
• RMHH: self-braking castors (minirolls) for hard floors.