Treston Plus 40 Task Chair

Treston Plus 40 ergonomic task chair for precise industrial work

Treston Plus 40 is an ergonomic task chair for workstations where sitting is not passive. In assembly, quality control, product development and technical office work, the user often leans forward, reaches for tools, turns to a screen and returns to a precise working position many times during the day. A normal office chair is not always the best answer for this kind of work. This industrial work chair has the wider support, adjustment range and durable upholstery options needed in technical environments.

Individual adjustment for different users

Treston Plus 40 can be adjusted to fit different body sizes and working positions. The seat height adjusts from 450 to 600 mm with a gas spring, giving a practical range for standard workbenches and desks. The seat is 460 mm wide, and the seat depth adjusts from 410 to 470 mm, so the user can set support under the thighs without pushing pressure behind the knees. The 600 mm backrest can be adjusted in height and tilt. This matters in detailed work, because the correct support point is not the same for every user. A lower user may need the backrest lower, while a taller user needs support higher up the back. Seat tilt adjustment also helps when the work is close to the front edge of the bench.

Synchronous mechanism for active sitting

The Treston Plus 40 ergonomic task chair includes a synchronous mechanism with resistance adjustment and locking. In practice, this means that the seat and backrest move together in a controlled way when the user changes posture. The resistance can be adjusted to the user and the task, and the movement can be locked when a stable position is needed. This is useful in precision work where the user must stay steady, but also needs freedom to move during the day.

Fabric upholstery or artificial leather upholstery

The chair is available with black fabric upholstery or black artificial leather upholstery. Both options are rated for demanding use with a Martindale rating of 50,000. The right choice depends on the working area and cleaning needs.

Fabric upholstery is a good choice for clean, dry working environments where comfort during long sitting periods is important. The fabric surface feels soft, breathes well and handles moisture in a natural way. It can be cleaned with commercially available upholstery cleaning products, which makes it suitable for technical offices, product development areas, quality rooms and other controlled indoor workstations.

Artificial leather, also called faux leather, is a strong option for production, assembly and healthcare-related work areas where surfaces must be easier to wipe clean. It gives a soft sitting feel, but it is washable, easy to maintain and resistant to disinfectants. This makes the artificial leather task chair practical when several users share the same workstation or when cleaning routines are stricter than in a normal office.

Safe movement on twin castors

The Treston Plus 40 industrial work chair is fitted with load-dependent braking twin castors. The castors brake when the chair is unloaded, helping it stay in place when nobody is sitting on it. When the chair is in use, the castors allow smooth movement around the workstation. This is valuable in work cells where the user moves between a bench, a parts tray, a tool board and a monitor. The five-star base gives stable support for normal seated work. The chair weighs 18.5 kg, which gives a solid feel without making the chair difficult to move. The official maximum load for the standard model is 120 kg, so the chair is suitable for a wide range of professional users.

Optional 4D armrests

For tasks where the arms need extra support, 4D armrests are available as an accessory. They adjust in height, depth and width, and they can also be turned to suit the working angle. Armrests are useful when the user spends part of the day at a keyboard, microscope, measuring device or control screen. In very close bench work, some users prefer to work without armrests to keep the chair easier to move under the table. The choice should be made according to the workstation layout and the task.

Specifications

• Seat height: 450–600 mm, gas spring adjustment
• Seat size: 460 × 410–470 mm (W × D)
• Backrest height: 600 mm
• Backrest adjustment: stepless height and tilt adjustment
• Mechanism: synchronous mechanism with resistance adjustment and locking
• Upholstery: black fabric or black artificial leather
• Martindale rating: 50,000
• Castors: load-dependent braking twin castors
• Weight: 18.5 kg
• Optional accessory: 4D armrests, ARE or ARE-ESD according to chair version