Fortis PI 400 | Control Room Chair | 24/7
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Premium 24-Hour Ergonomic Support for Intense Multi-Shift Environments
Engineered for intense, multi-shift environments, the Fortis PI-400 is the ultimate heavy-duty ergonomic seating solution. While standard office chairs are built for basic 8-hour days, the Fortis PI-400 is BS 5459-2:2000 +A2:2008 certified for continuous 24-hour operation and rated to support users up to 150 kg.
Designed to reduce fatigue, neck strain, and back pain during long hours, it features a high-density PU-moulded foam seat, an ultra-durable Black Fighter fabric upholstery (rated to 130,000 Martindale cycles), and a genuine black leather headrest. Equipped with an Italian synchronized tilt mechanism, 4D adjustable armrests, and seat depth adjustment, the Fortis PI-400 delivers unmatched posture support for 24/7 control rooms, call centres, and corporate workstations.
Posture Tips & Improved Ergonomics
Sitting for long periods can often lead to discomfort or pain, especially in areas like your hips, lower back, and tailbone. Here are some simple, effective tips to help improve your posture and reduce common issues like hip pain when sitting, lower back pain when sitting, and tailbone pain when sitting.
1. Support Your Lower Back
If your lower back hurts when sitting, it's often due to a lack of proper support. Make sure your chair has good lumbar support to keep your spine aligned. You can also use a small cushion to provide extra support if needed.
2. Keep Your Hips at the Right Angle
When your hip hurts when sitting, it may be due to poor alignment. Your hips should be level with or slightly higher than your knees. Adjust your chair height so your feet are flat on the ground and your knees form a 90-degree angle. This can help reduce hip joint pain while sitting and prevent buttock pain when sitting and lying down.
3. Adjust Your Seat Position
For those dealing with coccyx pain when sitting or a sore tailbone from sitting, ensure your seat isn’t pressing too hard on your tailbone. Try a cushion with a cut-out section to relieve pressure on the tailbone and improve comfort.
4. Move Regularly
If you feel buttock ache when sitting or hip discomfort when sitting, it's a sign that your body needs a break. Stand up, stretch, or take a short walk every 30-60 minutes. Regular movement can ease tension and prevent hip ache when sitting or lower back pain while sitting.
5. Exercise for Strength and Flexibility
A good workout for back pain can strengthen your core and back muscles, reducing discomfort. Exercises like gentle stretches or yoga can help relieve bottom pain when sitting, butt pain while sitting, and improve overall posture.
By following these posture tips and incorporating ergonomic tips into your daily routine, you can reduce discomfort and improve your overall well-being while sitting. Make sure to listen to your body and adjust your workspace as needed to stay comfortable throughout the day.
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Key Features & Ergonomic Benefits
Certified 24/7 Performance: Tested and certified to BS 5459 standards for continuous round-the-clock use and heavy-duty 150 kg weight capacity.
Precision Italian Sync Mechanism: Features fast-tension adjustment with multi-position tilt locking, allowing seamless posture transitions throughout long shifts.
Comprehensive 4D Armrest Support: Fully customizable armrests adjust in height (0–125 mm), width (0–50 mm), angle (±15°), and depth (0–55 mm) to relieve shoulder and arm tension.
Adjustable Leather Headrest: Features a luxurious, easy-to-clean black leather headrest with height (0–75 mm) and angle adjustments for targeted cervical spine support.
Independent Seat & Back Adjustments: Includes a 60 mm seat slide depth adjustment, -3° to +3° seat angle adjustment, and 65 mm backrest height adjustment for custom lumbar alignment.
Ultra-Durable Construction: Built with high-density 72 kg/m³ PU-moulded foam, a 700 mm black powder-coated aluminium base, a Class 4 heavy-duty gas lift, and 60 mm rubber-rimmed hard brake castors suitable for all floor types.
Technical Specifications
| Feature | Specification |
| Max User Weight | 150 kg |
| Usage Rating | 24-Hour / Continuous 24/7 |
| Total Width / Depth | 72.5 cm / 65 cm |
| Seat Width / Depth | 52.5 cm / 41 – 47 cm (60 mm slide range) |
| Seat Angle Adjustment | -3° to +3° |
| Backrest Height / Width | 74 – 88 cm (65 mm adjustment range) / 44.5 cm |
| Armrest Height | 66 – 90 cm (125 mm adjustment range) |
| Base Diameter | 72 cm (700 mm Powder-Coated Aluminium Alloy) |
| Castors | 60 mm Rubber-Rimmed Hard Brake Castors (All Floors) |
| Foam Density | High-Density PU Moulded (72 kg/m³) |
| Fabric Abrasion Rating | 130,000 Martindale Cycles (Black Fighter Fabric) |
| Headrest Upholstery | Black Leather (Height & Angle Adjustable) |
| Gas Lift | Class 4 Heavy-Duty |
| Product Weight | 28.8 kg |
| Safety Certifications | BS 5459-2:2000 +A2:2008, EN 1335-1:2020, EN 1335-2:2018 |
Frequently Asked Questions (FAQs)
What does 24/7 certification (BS 5459) mean?
Standard office chairs are tested and built for single-user, 8-hour workday use. The BS 5459-2:2000 +A2:2008 certification guarantees that the Fortis PI-400 has passed rigorous structural and component durability tests for continuous, multi-shift 24-hour use by individuals weighing up to 150 kg.
Is this chair suitable for hard floors?
Yes. The chair is fitted with 60 mm rubber-rimmed hard brake castors designed to glide smoothly and safely on both hard floors (laminate, tile, wood) and carpet without causing damage.
How durable is the fabric on the seat and backrest?
The Fortis PI-400 uses premium Black Fighter fabric rated to 130,000 Martindale cycles. Standard commercial fabric is typically rated at 25,000 to 40,000 cycles, making this upholstery exceptionally resistant to wear, tear, and abrasion in high-traffic environments.
How adjustable are the armrests?
The chair features full 4D armrest adjustment: height (up to 125 mm), width (up to 50 mm), arm pad angle (±15° pivot), and depth (forward/backward movement up to 55 mm). This allows users of all sizes to find optimal support for typing and desk work.
Alternative Products
Fortis Air PI 300 | Ergonomic Office Chair
Fortis PI 400 | Back Care Office Chair
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Try Before You Buy
Not sure which setup is right for you? Visit our Dublin or Tipperary showrooms to test our full range of ergonomic office chairs, sit-stand desks, mice, keyboards, and accessories. You'll get free 1-1 ergonomic advice on the day from our experts to ensure you choose the equipment that works best for your body. Can't make it in person? Book a consultation via our online virtual studio.
Book Your Consultation Below
Dublin
Showroom
Tipperary
Showroom
Online
Virtual
Try Before You Buy
Not sure which setup is right for you? Visit our Dublin or Tipperary showrooms to test our full range of ergonomic office chairs, sit-stand desks, mice, keyboards, and accessories. You'll get free 1-1 ergonomic advice on the day from our experts to ensure you choose the equipment that works best for your body. Can't make it in person? Book a consultation via our online virtual studio.
Book Your Consultation Below
Dublin
Showroom
Tipperary
Showroom
Online
Virtual
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