KAB K4 Premium Leather 24 Hour Office Chair
The KAB K4 Premium is engineered for continuous 24-hour use in demanding environments including control rooms, operation centres, and general office settings. Rated for users up to 31 stone (200kg), this chair combines robust construction with comprehensive ergonomic adjustability.
Key Features
Built on a robust steel frame with a 30 stone rated gas lift, the K4 Premium delivers exceptional durability. The adjustable seat base cushion accommodates operators of all heights, with 50mm seat cushion length adjustment and a unique 0 to 7.5 degree upward tilt function. Height adjustment spans 100mm via gas-assisted mechanism, ensuring optimal desk positioning.
Ergonomic support includes air lumbar adjustment for personalised lower back comfort, plus a height and tilt adjustable headrest. The adjustable backrest recline and seat tilt with tension adjuster allow users to find their ideal seating position. Tip-up comfort armrests provide flexibility when entering or exiting the chair.
KAB Tilt System Technology
The proprietary KAB Tilt System features side-mounted rotary controls for intuitive adjustment. Weight adjustment accommodates users from 50-200kg with easy tension range modification. An anti-kick safety system prevents unexpected seat movement, while simple height and tilt controls ensure quick positioning changes during long shifts.
Construction and Specifications
The chair sits on a 700mm wide 5-star base fitted with castors suitable for hard floors. Overall width including armrests measures 685mm, with seat cushion length adjustable from 430-480mm. Standard medium gas lift provides seat heights from 460-560mm, with low (440-510mm) and high (530-650mm) gas lift options available upon request.
Additional Options
Customisation options include rubber soft tyre castors for enhanced floor protection, polished aluminium 5-star base upgrade, alternative gas lift heights for specific desk configurations, and an optional footring for elevated seating positions.
KAB K4 Premium Features
- 30 stone rated gas lift
- 24-hour use approved
- Seat cushion tilt adjuster (0 to 7.5 degrees upwards)
- Seat cushion length adjustment (50mm)
- Adjustable backrest recline
- Air lumbar support
- Tip-up comfort armrests
- Headrest (height & tilt adjustable)
- Contoured cushions
- Seat tilt with tension adjuster
- Height adjustment 100mm (gas assisted)
- 5-star base
- Castors suitable for hard floors
- Robust steel frame
KAB Tilt System
- Side mounted rotary controls
- Easy weight adjustment 50-200kg
- Easy tension range adjustment
- Easy height and tilt adjustment
- Anti-kick safety system
Further options on request
- Rubber soft tyre castors (suitable for hard floors)
- Polished Aluminium 5 star base
- 2 additional options of gas lift:
- Low Gas Lift
- High Gas Lift
- Footring
Dimensions (mm)
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Width Including Armrests: 685
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Seat Cushion Length: 430 - 480
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5 Star Base Width: 700
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Seat Height (Low Gas Lift): 440 - 510
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Seat Height (Medium Gas Lift): 460 - 560
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Seat Height (High Gas Lift): 530 - 650
Frequently asked questions
What distinguishes the KAB K4 Premium from other 24-hour chairs?
The KAB K4 Premium is specifically designed for multi-user environments where different operators need to adjust the seat depth. It features a unique adjustable seat base cushion that can be extended by 50mm and tilted upwards by up to 7.5 degrees. This ensures that users of varying heights can maintain correct circulation and thigh support during 24-hour shifts.
How does the air lumbar support system work?
Unlike standard mechanical lumbar supports, the K4 Premium utilises an air lumbar system. This allows the user to precisely inflate or deflate the lumbar cushion using a hand pump, providing a bespoke level of pressure that contours exactly to the lower back. This is highly effective for reducing fatigue during long-duration sitting.
What is the maximum weight capacity of the K4 Premium?
The K4 Premium is built on a heavy-duty steel frame and is rated for users up to 200kg, or approximately 31 stone. This makes it one of the most robust ergonomic chairs available, supported by a 30-stone rated gas lift and a wide 700mm 5-star base for maximum stability.
What are the benefits of choosing leather for the K4 Premium?
Leather is the ideal choice for multi-shift environments where hygiene is a priority. Because the surface is non-porous, it can be easily wiped down with a sanitising cloth between operator changes. It also offers a premium, executive look and is exceptionally resistant to wear and tear.
Does the leather upholstery affect the ergonomic features?
No, the leather version includes the exact same ergonomic suite as the fabric model, including the 50mm seat cushion length adjustment, the 7.5-degree upward tilt, and the height and tilt adjustable headrest. The leather is carefully fitted to ensure the air lumbar support remains fully responsive.
Which KAB K4 Premium model is right for me?
The choice between fabric and leather depends primarily on your working environment. The KAB K4 Premium All Fabric is the best option for users who prioritise breathability and a softer, more cushioned feel. The KAB K4 Premium Leather is recommended for shared 24/7 environments like emergency services or control rooms, where easy cleaning and a prestigious executive appearance are the main requirements.
Although we sell on the internet we like to think that people buy from people so why not call us to discuss your needs. We love to talk and advice is free: 01473 807500.
