Throna HEXAGON – ESD cleanroom chair
Suitable for ISO class 9 to 6 cleanrooms: this ESD-safe chair combines ergonomics and comfort with static discharge protection. Finished in durable Nero black synthetic leather and steplessly height-adjustable between 42 and 55 cm.
The Throna HEXAGON ESD cleanroom chair combines advanced ergonomics with comprehensive electrostatic protection. Specifically engineered for demanding use in controlled environments and cleanrooms up to ISO Class 6, it prevents electrostatic discharge (ESD) risks that could compromise sensitive electronic components and critical processes.
Engineered with high-grade conductive materials, the HEXAGON ESD ensures continuous, dependable grounding in accordance with IEC 61340-5-1 standards. Both the specialised ECR 7 ESD upholstery and the conductive castors and base dissipate static build-up immediately. The sealed gas lift eliminates oil and grease particulate emissions, while the fully enclosed seat underside prevents particle accumulation and dispersion within critical spaces.
Key Features and Benefits
- ISO Class 6 Compliant: Engineered and validated for dependable use in cleanroom environments up to ISO 6.
- Comprehensive ESD Protection: Conforms to IEC 61340-5-1 and CEI 101-1 with exceptionally low Human Body Voltage (<100 V) and ultra-fast discharge time (0.001 sec).
- NO-OIL Gas Lift Technology: Completely sealed against lubricant emissions to safeguard controlled environment integrity.
- Cleanroom Enclosure: Sealed seat protection prevents dust and airborne micro-particulate accumulation.
- Ergonomic Support: Available with permanent contact mechanism (PCX) or asynchronous mechanism (ASX) for tailored support during long shifts.
- Durable ECR 7 ESD Upholstery: Provides superior conductivity, wear resistance, and high compatibility with wipe-down disinfectants.
Specifications
| Property | Specification |
|---|---|
| Applicable ISO Class | ISO 6 |
| ESD Protection | Suitable for EPA environments (standard IEC 61340-5-1) |
| Chair Grounding Resistance | 1.6 x 10⁶ Ohm (IEC 61340-5-1) |
| Upholstery Surface Resistance | 2.8 x 10⁴ Ohm (IEC 61340-5-1) |
| Upholstery Discharge Time | 0.001 sec positive / 0.001 sec negative (IEC 61340-5-1) |
| Human Body Voltage (HBV) | 0.015 nC (<100 V) (CEI 101-1) |
| Seat Protection | Sealed seat underside protection against dust accumulation |
| Upholstery Material | ECR 7 ESD upholstery |
| Standard Colour | Nero - Black 1104 |
| Seat Width | 47 cm |
| Seat Depth | 51 cm |
| Backrest Height | 53 - 59 cm |
| Seat Height (Low Model) | 42 - 55 cm |
| Seat Height (High Models) | 50 - 70 cm and 60 - 85 cm |
| Base Configuration |
|
| PCX Mechanism | Permanent contact: backrest height and tilt adjustment |
| ASX Mechanism | Asynchronous: independent seat and backrest adjustment with forward/backward tilt |
| Optional Accessories |
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For additional model configurations and product options, please refer to the official product datasheet.
As part of a comprehensive cleanroom furnishing solution, the HEXAGON series integrates seamlessly with stainless steel worktables, sit-stand supports, cleanroom trolleys, and ESD floor matting.
Do you require assistance selecting the ideal configuration or mechanism for your facility? Contact one of our technical specialists for expert guidance.



