Expert 9.8 - premium office chair
Designed for long working hours, the Expert 9.8 combines advanced adjustment mechanisms with durable materials. Thoughtful design and extensive adjustments allow you to customize the chair to provide support and comfort all day long.
- Wire control mechanism with up to 140° tilt and 5-position locking mechanism
- Slide technology - sliding seat (5 cm)
- Adjustable lumbar support and backrest height
- Breathable Mesh HD fabric and aluminum construction
- 6D armrests and 3D headrest for precise positioning
- Retractable footrest and quiet polyurethane-rubber wheels
Precise lumbar support
The Expert 9.8 offers a backrest height adjustment of up to 65 mm and a four-stage lumbar support angle setting. This makes it easy to adjust the support point to the natural curvature of your back, improving posture and reducing tension in the lower spine.
Wire Control mechanism
Smooth reclining of the backrest up to 140° with locking in five positions allows you to find a comfortable angle for both work and rest. The system gives stable and smooth support when changing positions.
Seat depth adjustment (Slide)
The Slide function allows the seat to be moved by about 5 cm, allowing you to adjust the depth under your thighs and improve the comfort of your seat regardless of your height.
6D armrests
The extended armrests allow you to adjust the height, angle, distance and depth, giving you full control over the position of your arms and reducing tension in your shoulders while working.
Adjusting the front of the armrests
The raised front edge of the armrests facilitates a perfect fit on the desk, improving keyboard work and reducing forearm fatigue.
Pull-out footrest
The extendable footrest gives you the opportunity to comfortably stretch your legs during a break, which promotes relaxation and recovery without having to leave your workstation.
3D headrest
The three-dimensional adjustment of the headrest (height, tilt, depth) allows you to precisely adjust the support of the head and neck, reducing the risk of overload and neck pain.
Infinitely adjustable and wheels to protect the floor
A class 4 gas actuator (100 mm adjustment range) ensures safe raising and lowering of the seat. Polyurethane-rubber wheels with a diameter of 6.5 cm move quietly and do not scratch the surface.
Sturdy construction with a practical hanger
The aluminum frame and star guarantee stability and a long product life. On the back of the backrest there is a discreet aluminum coat or bag rack - a convenient solution for the office and study.
Certified quality
Expert 9.8 meets the ANSI/BIFMA X5.1-2017 standard (SGS certified), which confirms its suitability for intensive work in an office environment - resilience, stability and ergonomics have been rigorously tested.
Technical data and dimensions
Below you will find basic technical information and photos with dimensions of the chair, making it easier to assess the space needed for its use.
Technical specifications:
| Manufacturer | Mark Adler |
| Model | Expert 9.8 |
| Material | mesh HD fabric; aluminum (star, frame, footrest mount, hanger) |
| Gas actuator | bIFMA Class 4, 100 mm range |
| Wheels | polyurethane-rubber, Ø 6.5 cm |
| Maximum load | 180 kg |
MA-EXPERT 9.8 BLACK
Data sheet
- Waga netto
- 29.000000
Specific References
- EAN13
- 5903796018882
Special features: Ergonomic premium office chair Wire control mechanism - smooth backrest tilt up to 140° with 5-step locking for maximum relaxation Slide technology allows you to move the seat within a range of 5 cm - a perfect fit for your figure Backrest height and lumbar support angle adjustment Breathable Mesh HD Fabric - thick weave and excellent air circulation 6D armrests - Fully adjustable in height, angle and position to perfectly adjust arm support. 3D adjustable headrest - adjust the height, tilt and depth of the neck support Pull-out footrest - ideal for breaks when you want to stretch your legs and relax Aluminum frame and star - durability and stability without compromise Polyurethane-rubber wheels (6.5 cm) - quiet and safe for floors Practical aluminum hanger on the backrest BIFMA class 4 gas actuator with a range of 100 mm provides smooth and safe height adjustment Approved by ANSI/BIFMA X5.1-2017 from SGS - the chair is suitable for professional use in offices Full control over the support of your spine The comfort of your spine is a priority. That's why the Expert 9.8 office chair offers 65mm of backrest height adjustment, allowing you to set it at the right level to optimally support your thoracic and lumbar spine. What's more, the lumbar support has a 4-position angle adjustment, so you can adjust it to the natural curvature of your spine for maximum comfort and correct posture. Wire control system The wire control mechanism allows you to smoothly tilt the backrest up to 140°, allowing you to comfortably position your body during breaks. The system offers 5 locking positions, so you'll easily find the perfect angle to relax for a moment or to recline comfortably during phone calls or video conferences. Fully adjustable for a customized fit Thanks to the innovative Slide technology, you can precisely adjust the depth of the seat by sliding it forward or backward. By adjusting the height of the backrest and the angle of the lumbar support, the chair adapts perfectly to your figure, providing optimal support for your spine. 6D adjustment Arm comfort is as important as back comfort. That's why the chair has 6D adjustable armrests that allow you to adjust their height, angle, distance from the seat and depth. You can adjust them so that your arms are always properly supported, which significantly reduces tension in your shoulders and neck. Ergonomic adjustment of armrests The raised front of the armrests provides a perfect fit to your desk height, reducing tension in your shoulders and improving comfort. This allows you to adjust positions for a variety of activities, from working to talking on the phone to relaxing. Ergonomic forearm support keeps your hands naturally aligned when typing on the keyboard or using the mouse, reducing fatigue. Pull-out footrest The extendable footrest allows you to fully relax during breaks. You can stretch your legs, reduce muscle tension and rest for a while without leaving your desk. Adjustable 3D headrest The adjustable 3D headrest provides full support for your neck and head. With adjustable height, tilt and depth of support, you can easily adjust the headrest to your body shape, which is extremely important when sitting for long periods of time. A properly adjusted headrest prevents neck pain and reduces the risk of tension headaches. Individual needs in 1st place Thanks to the BIFMA Class 4 gas actuator with an adjustment range of 100 mm, you can easily adjust the seat height to your desk and figure. It's a guarantee of smooth and safe adjustment, which translates into greater comfort during long hours of work. Wheels for any surface The 6.5 cm diameter polyurethane-rubber casters move quietly and smoothly on the floor, protecting any type of surface from scratches, making them ideal for both offices and home offices. Thoughtful design Solid construction is the key to safety and durability. The aluminum frame and star ensure stability, strength and resistance to heavy use. Thanks to high-quality materials, the chair not only looks elegant, but also remains reliable for years. An additional advantage is the hanger located at the back of the backrest, so that your coat, backpack or purse is always at hand. Certified quality The ANSI/BIFMA X5.1-2017 certification from the renowned SGS certification body is a guarantee that the Expert 9.8 meets the highest standards in safety, quality and comfort, making it a reliable choice for professional work environments. The chair has passed rigorous tests for strength, stability, ergonomics and wear resistance. By meeting strict standards, the chair features high quality workmanship and exceptional durability, making it an ideal choice for heavy use in office spaces. Technical data Specification Manufacturer: Mark Adler Model: Expert 9.8 Material: mesh HD fabric, aluminum (star, frame, footrest mount,hanger) Gas cylinder: bIFMA Class 4, 100mm Wheels: polyurethane-cuff, 6.5 cm Maximum load: 180 kg