Lotto Medium Back Mesh Operator Chair
Sleek contemporary design meets precision ergonomic adjustment.
The Lotto Medium Back Mesh Operator Chair brings modern aesthetics and total posture control to any commercial or home workspace. Engineered with a durable polypropylene and fibreglass composite frame, it features a dynamic synchro mechanism, built-in seat slide function, and adjustable lumbar support. Available in both classic Black and a striking White-Grey frame finish, it comes standard with removable 3D armrests, carries a 135kg commercial load rating, and is GreenGuard GOLD certified for low emissions.SKU:
F-LOTTO MB
- Categories: Operator Chairs
- Weight: 16.8 kg
- Dimensions: L: 762 x W: 286 x H: 660
- Availability: Express Dispatch
- Product Type: Variable
Engineered Fibreglass Composite Frame & Modern Styling
Unlike standard plastic task chairs, the Lotto operator chair is constructed using a high-grade polypropylene and fibreglass mix frame. This delivers superior structural rigidity, flex resistance, and long-term durability while maintaining a clean, modern aesthetic. Available in two versatile frame finishes – sleek Black for classic corporate setups or modern White-Grey for light, Scandinavian-inspired workspaces – it instantly elevates any fitout.
Complete Ergonomic Toolkit: Synchro Tilt, Lumbar & Seat Slide
A great task chair should adapt to the body, not the other way around. The Lotto chair incorporates a full suite of ergonomic adjustments to support proper posture during extended computer use:
- Synchro Mechanism & Gas Lift: Backrest tilt and seat tilt function together at a synchronized ratio to encourage natural movement, backed by a smooth gas lift height range of 430mm to 530mm.
- Integrated Seat Slide: Easily adjust the depth of the seat pan (480mm depth) to accommodate shorter or longer leg lengths, keeping your lower back supported without restricting circulation behind the knees.
- Adjustable Lumbar Support: Fine-tune lower-back tension to maintain your natural spinal alignment and eliminate lumbar strain during 8+ hour workdays.
- Removable 3D Adjustable Arms: Customise armrest height to match your desk surface, or detach them entirely for tight space requirements.
Certified Eco-Friendly & Sustainable
The Lotto chair meets strict international environmental and safety benchmarks, making it a responsible choice for modern offices and educational settings:
GreenGuard GOLD Certified
Tested for low chemical emissions (VOCs), ensuring healthy indoor air quality in climate-controlled office spaces, schools, and home environments.
135kg Commercial Capacity
Heavy-duty 5-star base on smooth castors engineered to support up to 135kg with complete stability.
5-Year Commercial Warranty
Backed by a 5-year warranty for peace of mind across company fitouts and workstation upgrades.
Where the Lotto chair excels
- Â Modern Tech & Creative Agencies: White-Grey frame brings a contemporary style.
- Open-Plan Administrative Hubs: Seat slide accommodates diverse hot-desking teams.
- Executive & Management Workstations: High-spec ergonomics for 8+ hour workdays.
- Home Offices & Hybrid Spaces: Compact medium-back footprint with premium features.
- Sustainable Corporate Fitouts: GreenGuard GOLD certified for green building standards.
Care & Maintenance Instructions
- Mesh & Fabric: Vacuum regularly with a soft brush attachment to remove dust. Spot clean fabric with a mild upholstery cleaner or damp microfiber cloth.
- Base & Castors: Periodically check castors and clear any lint or debris from around the wheels to ensure smooth rolling across carpet and hard floors.
- Gas Lift & Levers: Wipe down mechanism components annually; no external lubrication required.
Additional information
| Weight | 16.8 kg |
|---|---|
| Dimensions | 762 × 286 × 660 mm |
| Colour | Black, White-Grey |
| Assembled Depth | 580mm |
| Assembled Width | 685mm |
| Assembled Height | 950mm |
| Back Height | 520mm |
| Seat Width | 500mm |
| Seat Depth | 480mm |
| Seat Height | 430-530mm |
| Weight Rating | 135kg |
| Warranty | 5 Years |
Product Documentation
Technical Line Drawing
EM300 Operator Chair
Pixel 5 Star Breakout & Meeting Chair
Share options