ST8F-GH
Built for modern workspaces, this black high-back ergonomic chair delivers steady comfort and long-term durability. The adjustable headrest, 5-level backrest height, and split double-waist spring lumbar support help users maintain healthy posture throughout the day. Its aluminum back bracket and wire-control synchronized tilt with 4-gear lock ensure smooth, reliable recline for efficient work.
The fabric-upholstered seat with slider and 3D armrests adapt easily to different tasks, while seat-height adjustment, back-tension control, and a Class-4 gas lift provide consistent ergonomic performance. Supported by a heavy-duty 350# aluminum base and 60# PU casters, this chair is ideal for corporate offices, wholesale distributors, and large-scale installations looking for stability and professional-grade comfort.
- Structure: Reinforced ergonomic frame paired with a durable aluminum back bracket, delivering long-lasting support and a premium structural feel.
- Base: Heavy-duty 350# aluminum alloy base engineered for exceptional load-bearing performance, stability, and corrosion resistance.
- Castor: 60mm PU silent castors provide smooth, noise-free mobility while protecting floors from scratches and marks.
- Gas Lift: Class-4 explosion-proof certified gas lift ensures safe, stable, and smooth height adjustment for a wide range of users.
- Mesh / Seat: Breathable fabric-upholstered seat with high-resilience cushioning and an integrated seat slider, allowing customizable seat depth for improved leg support.
- Headrest: Adjustable ergonomic headrest designed to support the natural curve of the neck and reduce cervical strain.
- Lumbar Support: Innovative split double-waist spring lumbar system that adapts to spinal movement and delivers continuous, responsive lower-back support.
- Backrest: Height-adjustable backrest with 5-level locking function, paired with customizable back-tension adjustment to match different sitting preferences.
- Mechanism: Wire-control synchronized tilting mechanism with 4-gear recline lock, offering stable, fluid reclining and enhanced ergonomic performance.
- Seat Height: Smooth, responsive seat-height adjustment to fit various desk setups and user heights.
- Armrest: 3D multifunctional armrests adjustable in height, depth, and pivot angle for personalized arm and shoulder comfort.
Material (MOQ: 300 PCS)
Base (MOQ: 300 PCS)
Armrest (MOQ: 300 PCS)
Headrest (MOQ: 300 PCS)
Specifications
Size of Chair
Dimensions
ST8 Series Office Chair Dimensions
| Dimension | Size (mm) |
|---|---|
| Overall Width | 680 |
| Backrest Width | 495 |
| Headrest Width | 390 |
| Seat Width (Top) | 450 |
| Seat Width (Between Armrests) | 490 |
| Armrest Height Range | 280–350 |
| Backrest Height | 566–610 |
| Seat Depth | 430–480 |
| Backrest Depth | 510 |
| Overall Height | 1160–1390 |
| Backrest Height (from seat) | 1020–1170 |
| Base Width | 515 |
| Base Depth | 640 |
| Chair Depth (Overall) | 660 |
| Seat Height Range | 470–570 |
| Headrest Height | 200 |
ST8 Series Office Chair Dimensions
| Dimension | Size (mm) |
|---|---|
| Overall Width | 680 |
| Backrest Width | 495 |
| Headrest Width | 390 |
| Seat Width (Top) | 450 |
| Seat Width (Between Armrests) | 490 |
| Armrest Height Range | 280–350 |
| Backrest Height | 566–610 |
| Seat Depth | 430–480 |
| Backrest Depth | 510 |
| Overall Height | 1160–1390 |
| Backrest Height (from seat) | 1020–1170 |
| Base Width | 515 |
| Base Depth | 640 |
| Chair Depth (Overall) | 660 |
| Seat Height Range | 470–570 |
| Headrest Height | 200 |