Treston Ergo 20 Task Chair, Black Polyurethane ESD

Static-safe, cleanroom-ready ergonomic seating. The Treston Ergo 20 is an ESD task chair designed for work environments where sensitive electronic components are handled. Compliant with IEC 61340-5-1, it's approved for use in EPA (Electrostatic Protected Area) zones – ideal for assembly, testing, and maintenance. Its hard-wearing polyurethane upholstery resists wear and chemicals, wipes clean easily, and is suitable for cleanroom use up to ISO Class 7.

Why choose the Treston Ergo 20?

This chair is engineered to keep operators comfortable and productive while protecting the components they handle. The contact backrest mechanism maintains back support even in forward-leaning postures common in assembly work, and the seat tilt lets you sit close to the task while reducing strain on the lower back. The wipe-clean polyurethane seat stands up to heavy use and chemical exposure, and quick-set controls mean every operator can dial in their ideal position in seconds – perfect for shared workstations.

Key features

• ESD-safe and EPA-approved – Compliant with IEC 61340-5-1 for safe use in electrostatic protected areas where sensitive electronics are handled.
• Cleanroom suitable (ISO Class 7) – Approved for use in controlled, contamination-sensitive environments.
• Wipe-clean polyurethane upholstery – Highly resistant to wear and chemicals and easy to keep clean.
• Contact backrest mechanism – Maintains back support in forward-leaning working positions, ideal for detailed assembly tasks.
• Seat tilt adjustment – Lets you work close to the task while easing strain on the lower back.
• Wide seat height range – Adjusts from 440mm to 620mm to suit a wide range of operators and bench heights.
• Backrest height adjustment – Fine-tune lumbar support for individual comfort.
• Safety twin castors – Soft conductive twin castors (Ø 50mm) that brake when unloaded, keeping the chair securely in place when not in use.
• Quick, intuitive adjustments – Easily adapted between users, perfect for shared workstations.
• 10-year warranty – Backed by Treston's long-term quality guarantee.

Specifications

Packaging: 680mm (W) x 660mm (D) x 300mm (H), 15.7kg.

Optional accessory: Multi-adjustable 4D armrests (ARE-ESD) are available separately.

Ideal applications

• Electronics assembly and ESD-controlled workspaces
• Cleanroom environments up to ISO Class 7
• Testing and maintenance stations
• EPA (Electrostatic Protected Area) environments
• Shared and multi-shift workstations

Frequently asked questions

Is this chair ESD-safe? Yes. The Treston Ergo 20 complies with IEC 61340-5-1, making it suitable for use in EPA areas where electrostatic discharge protection is required.

Can it be used in a cleanroom? Yes – the chair is suitable for cleanroom use up to ISO Class 7.

What is the seat height range? The seat adjusts from 440mm to 620mm, and the backrest height is also adjustable.

Do the castors lock? The chair uses load-sensitive safety castors that brake automatically when the chair is unloaded, holding it in place when not in use.

How much weight can it support? The chair is rated for a maximum load of 120kg.

Does it come with armrests? No – armrests are not included. Multi-adjustable 4D armrests (ARE-ESD) are available as an optional accessory.

What warranty is included? Treston backs the Ergo 20 with a 10-year warranty.