Blue fabric operator office chair with cushioned backrest and seat, black armrests, twin lever mechanism and height-adjustable five-star base with castor wheels on a white background.

Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Ergonomic Blue Operator Chair with Integrated Arms

Equip your staff or students with an affordable, high-specification seating solution. This blue operator chair is designed to provide consistent support during intensive desk work, combining professional-grade mechanics with a vibrant aesthetic that refreshes any office or classroom interior.

The Cobolt Advantage

  • Independent Back Rake Control: Achieve the perfect sitting angle. This mechanism allows the backrest to tilt independently of the seat pan, ensuring you can lock the chair into the most supportive position for your specific task.
  • Precision Lumbar Alignment: No two users are the same height. With the manual back height adjustment, you can raise or lower the backrest so that the integrated lumbar contour sits exactly in the small of your back, preventing fatigue.
  • Permanent Arm Support: The fixed armrests provide a reliable, grounded platform for your elbows and forearms. This crucial feature helps alleviate tension in the shoulders and neck, which often leads to workplace discomfort.

Certified Durability

  • High-Abrasion Blue Fabric: Upholstered in a heavy-duty, commercial-grade blue fabric, the seat and back are built to resist wear and pilling, maintaining a professional look even in high-traffic administrative hubs.
  • EN 1335 Compliance: This chair meets strict EN 1335-1:2000 and EN 1335-2:2018 criteria. It has been independently verified for its ergonomic dimensions, safety, and structural strength in a commercial setting.
  • Smooth Gas Lift Transition: The reinforced gas strut provides a 110mm height adjustment range (460-570mm), allowing users to find the correct eye level with their monitors while keeping feet flat for healthy circulation.

The Cobolt Standard

  • Free Mainland UK Delivery: At Cobolt, we manage all transport logistics at no extra cost to you. Every chair includes Free Mainland UK Delivery, ensuring transparent pricing for your facility's budget.
  • 50 Years of Mastery: We leverage five decades of B2B expertise to source essential furniture that genuinely thrives under the pressure of the UK's busy educational and public sectors.
  • British Design Focus: This chair is thoughtfully Designed in the UK, ensuring the mechanical adjustments and proportions meet the specific ergonomic needs of the British workplace.

Where is the Fixed-Arm Blue Operator Chair best utilised?

The Blue Fabric Operator Chair is the primary specification for Primary and Secondary School Offices, University ICT Suites, and Healthcare Reception Desks. Its vibrant blue finish makes it an ideal choice for Collaborative Breakout Rooms and modern Staff Rooms.

Key Features

  • Independent Back Rake Adjustment — Independent tilt control for the backrest, lockable in multiple positions.
  • Manual Back Height Control — Allows the seat back to be highered or lowered to provide targeted lumbar support.
  • Contoured High-Density Seat — Designed to distribute user weight evenly and increase ease during long periods of use.
  • Integrated Fixed Arms — Provide a permanent support platform for the upper body to reduce shoulder strain.
  • 110kg Maximum Capacity — Robustly engineered for daily professional use by individuals up to approximately 17 stone.
  • EN 1335 Certified — Complies with European safety and ergonomic standards for commercial office seating.
  • Reinforced Five-Star Base — Fitted with smooth-gliding castors for effortless mobility on all office floor types.
  • Designed in the UK — Engineered specifically to meet the ergonomic and aesthetic standards of the British market.
Warranty icon
3-year commercial warranty
Free delivery icon
Free UK Mainland Delivery
UK Designed icon
Designed in the UK

Cobolt Service & Ethos: Supporting Institutional Estates

  • B2B Quality Assurance: We strictly avoid temporary domestic alternatives, focusing on commercial-grade solutions built for longevity in educational and corporate facilities.
  • Health & Safety Compliance: Our adherence to EN 1335 standards helps your institution meet workplace wellbeing and workstation safety criteria.
  • Specialist Logistics: Chairs are dispatched via professional freight networks to ensure they arrive securely and ready for rapid campus setup.

Certified Security. Proven Performance.

  • Complies with EN 1335 Standards, confirming the chair has passed independent tests for stability, safety, and durability in high-traffic settings.
  • The Gas Lift Height Adjustment is tested for longevity, ensuring the seat remains at your selected level without slipping under load.
  • The Back Rake Lock is a critical safety feature, ensuring the backrest provides a secure, static platform for focused work once adjusted.
  • Features an Ergonomically Contoured Backrest that encourages correct spinal alignment, reducing the risk of musculoskeletal discomfort.
  • This operator chair is protected by our 3-year commercial warranty, covering all mechanical parts and structural integrity under normal office usage.

A professional blue fabric operator chair featuring integrated fixed arms, independent back rake adjustment, and full EN 1335 certification.

Weight Capacity
110kg
Standard
EN 1335
Guarantee
3 Years
Specification
Dimensions
Purpose / Benefit
Total Height
895mm - 1005mm
Variable range to ensure proper spinal support for users of different heights
Seat Height
460mm - 570mm
Ensures the user can maintain an ergonomic 90-degree angle at the knees
Seat Width & Depth
480mm(W) x 445mm(D)
Contoured seat pan increases comfort during long periods of administrative work
Backrest Dimensions
480mm(H) x 450mm(W)
Wide backrest surface provides reliable support across the mid and lower spine
Total Unit Width
480mm
Compact arm-to-arm format designed for efficiency in busy office layouts
Tilt Mechanism
Independent Back Rake
Allows for separate back tilt control lockable in multiple ergonomic positions
Weight
13.6kg
Solid commercial build quality ensuring stability and daily resilience
Fabric Finish
Vibrant Blue Technical Fabric
Tough, breathable upholstery built for high-traffic office and school usage
Origin
Designed in the UK
Refining ergonomic standards for the British workplace environment

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5-7 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Frequently Asked Questions

1. What is "Independent Back Rake Adjustment"?

A: This feature allows you to change the angle of the backrest separately from the seat. You can tilt the back forward or backward and lock it into your preferred position for bespoke lumbar support.

2. Will the armrests fit under my current desk?

A: Yes. This chair is designed to fit standard desk dimensions. The armrests provide stable support but are scaled to ensure the chair can be tucked into most workstations when not in use.

3. Why is EN 1335 certification important for a school office?

A: EN 1335 is the European standard for office work chairs. It guarantees the unit meets strict safety and ergonomic criteria, ensuring you are providing staff with compliant, safe, and durable furniture.

4. Is the backrest height adjustable?

A: Yes. You can raise or lower the backrest manually. This is a vital adjustment to ensure the contoured part of the chair aligns perfectly with the small of your back.

5. What is the weight limit for this operator chair?

A: This chair is structurally rated for a maximum user weight of 110kg (approximately 17 stone), which is the standard for daily professional office seating.

6. Is the blue fabric easy to keep clean?

A: Absolutely. The chair is upholstered in high-abrasion commercial fabric, which is designed to be tough and easy to maintain. Regular vacuuming or wiping with a damp cloth keeps it looking new.

7. Is assembly required upon delivery?

A: Yes, simple assembly is required. The chair arrives with clear instructions and all necessary fixings; most users find they can have it built and ready for use in 10-15 minutes.

8. What exactly does the 3-year warranty cover?

A: Our 3-year commercial warranty provides comprehensive cover for all mechanical components—including the gas lift and tilt adjustments—and any structural defects in the frame.

Overview

Product Overview: Ergonomic Blue Operator Chair with Integrated Arms

Equip your staff or students with an affordable, high-specification seating solution. This blue operator chair is designed to provide consistent support during intensive desk work, combining professional-grade mechanics with a vibrant aesthetic that refreshes any office or classroom interior.

The Cobolt Advantage

  • Independent Back Rake Control: Achieve the perfect sitting angle. This mechanism allows the backrest to tilt independently of the seat pan, ensuring you can lock the chair into the most supportive position for your specific task.
  • Precision Lumbar Alignment: No two users are the same height. With the manual back height adjustment, you can raise or lower the backrest so that the integrated lumbar contour sits exactly in the small of your back, preventing fatigue.
  • Permanent Arm Support: The fixed armrests provide a reliable, grounded platform for your elbows and forearms. This crucial feature helps alleviate tension in the shoulders and neck, which often leads to workplace discomfort.

Certified Durability

  • High-Abrasion Blue Fabric: Upholstered in a heavy-duty, commercial-grade blue fabric, the seat and back are built to resist wear and pilling, maintaining a professional look even in high-traffic administrative hubs.
  • EN 1335 Compliance: This chair meets strict EN 1335-1:2000 and EN 1335-2:2018 criteria. It has been independently verified for its ergonomic dimensions, safety, and structural strength in a commercial setting.
  • Smooth Gas Lift Transition: The reinforced gas strut provides a 110mm height adjustment range (460-570mm), allowing users to find the correct eye level with their monitors while keeping feet flat for healthy circulation.

The Cobolt Standard

  • Free Mainland UK Delivery: At Cobolt, we manage all transport logistics at no extra cost to you. Every chair includes Free Mainland UK Delivery, ensuring transparent pricing for your facility's budget.
  • 50 Years of Mastery: We leverage five decades of B2B expertise to source essential furniture that genuinely thrives under the pressure of the UK's busy educational and public sectors.
  • British Design Focus: This chair is thoughtfully Designed in the UK, ensuring the mechanical adjustments and proportions meet the specific ergonomic needs of the British workplace.

Features & Benefits

Where is the Fixed-Arm Blue Operator Chair best utilised?

The Blue Fabric Operator Chair is the primary specification for Primary and Secondary School Offices, University ICT Suites, and Healthcare Reception Desks. Its vibrant blue finish makes it an ideal choice for Collaborative Breakout Rooms and modern Staff Rooms.

Key Features

  • Independent Back Rake Adjustment — Independent tilt control for the backrest, lockable in multiple positions.
  • Manual Back Height Control — Allows the seat back to be highered or lowered to provide targeted lumbar support.
  • Contoured High-Density Seat — Designed to distribute user weight evenly and increase ease during long periods of use.
  • Integrated Fixed Arms — Provide a permanent support platform for the upper body to reduce shoulder strain.
  • 110kg Maximum Capacity — Robustly engineered for daily professional use by individuals up to approximately 17 stone.
  • EN 1335 Certified — Complies with European safety and ergonomic standards for commercial office seating.
  • Reinforced Five-Star Base — Fitted with smooth-gliding castors for effortless mobility on all office floor types.
  • Designed in the UK — Engineered specifically to meet the ergonomic and aesthetic standards of the British market.
Warranty icon
3-year commercial warranty
Free delivery icon
Free UK Mainland Delivery
UK Designed icon
Designed in the UK

Cobolt Service & Ethos: Supporting Institutional Estates

  • B2B Quality Assurance: We strictly avoid temporary domestic alternatives, focusing on commercial-grade solutions built for longevity in educational and corporate facilities.
  • Health & Safety Compliance: Our adherence to EN 1335 standards helps your institution meet workplace wellbeing and workstation safety criteria.
  • Specialist Logistics: Chairs are dispatched via professional freight networks to ensure they arrive securely and ready for rapid campus setup.

Safety & Warranty

Certified Security. Proven Performance.

  • Complies with EN 1335 Standards, confirming the chair has passed independent tests for stability, safety, and durability in high-traffic settings.
  • The Gas Lift Height Adjustment is tested for longevity, ensuring the seat remains at your selected level without slipping under load.
  • The Back Rake Lock is a critical safety feature, ensuring the backrest provides a secure, static platform for focused work once adjusted.
  • Features an Ergonomically Contoured Backrest that encourages correct spinal alignment, reducing the risk of musculoskeletal discomfort.
  • This operator chair is protected by our 3-year commercial warranty, covering all mechanical parts and structural integrity under normal office usage.

Specification Dimensions

A professional blue fabric operator chair featuring integrated fixed arms, independent back rake adjustment, and full EN 1335 certification.

Weight Capacity
110kg
Standard
EN 1335
Guarantee
3 Years
Specification
Dimensions
Purpose / Benefit
Total Height
895mm - 1005mm
Variable range to ensure proper spinal support for users of different heights
Seat Height
460mm - 570mm
Ensures the user can maintain an ergonomic 90-degree angle at the knees
Seat Width & Depth
480mm(W) x 445mm(D)
Contoured seat pan increases comfort during long periods of administrative work
Backrest Dimensions
480mm(H) x 450mm(W)
Wide backrest surface provides reliable support across the mid and lower spine
Total Unit Width
480mm
Compact arm-to-arm format designed for efficiency in busy office layouts
Tilt Mechanism
Independent Back Rake
Allows for separate back tilt control lockable in multiple ergonomic positions
Weight
13.6kg
Solid commercial build quality ensuring stability and daily resilience
Fabric Finish
Vibrant Blue Technical Fabric
Tough, breathable upholstery built for high-traffic office and school usage
Origin
Designed in the UK
Refining ergonomic standards for the British workplace environment

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5-7 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Product FAQs

Frequently Asked Questions

1. What is "Independent Back Rake Adjustment"?

A: This feature allows you to change the angle of the backrest separately from the seat. You can tilt the back forward or backward and lock it into your preferred position for bespoke lumbar support.

2. Will the armrests fit under my current desk?

A: Yes. This chair is designed to fit standard desk dimensions. The armrests provide stable support but are scaled to ensure the chair can be tucked into most workstations when not in use.

3. Why is EN 1335 certification important for a school office?

A: EN 1335 is the European standard for office work chairs. It guarantees the unit meets strict safety and ergonomic criteria, ensuring you are providing staff with compliant, safe, and durable furniture.

4. Is the backrest height adjustable?

A: Yes. You can raise or lower the backrest manually. This is a vital adjustment to ensure the contoured part of the chair aligns perfectly with the small of your back.

5. What is the weight limit for this operator chair?

A: This chair is structurally rated for a maximum user weight of 110kg (approximately 17 stone), which is the standard for daily professional office seating.

6. Is the blue fabric easy to keep clean?

A: Absolutely. The chair is upholstered in high-abrasion commercial fabric, which is designed to be tough and easy to maintain. Regular vacuuming or wiping with a damp cloth keeps it looking new.

7. Is assembly required upon delivery?

A: Yes, simple assembly is required. The chair arrives with clear instructions and all necessary fixings; most users find they can have it built and ready for use in 10-15 minutes.

8. What exactly does the 3-year warranty cover?

A: Our 3-year commercial warranty provides comprehensive cover for all mechanical components—including the gas lift and tilt adjustments—and any structural defects in the frame.

Blue Fabric Operators Chair with Fixed Arms

Product code: OC305B
Brighten your workspace while prioritising spinal health with the Blue Fabric Operators Chair with Fixed Arms. Designed in the UK to meet the rigorous...

Inc VAT

Exc VAT

£149.00

£124.17

Colour - Blue

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Overview

Features

Safety & Warranty

Specifications & Dimensions

Delivery & Returns

Product FAQs

Product Overview: Ergonomic Blue Operator Chair with Integrated Arms

Equip your staff or students with an affordable, high-specification seating solution. This blue operator chair is designed to provide consistent support during intensive desk work, combining professional-grade mechanics with a vibrant aesthetic that refreshes any office or classroom interior.

The Cobolt Advantage

  • Independent Back Rake Control: Achieve the perfect sitting angle. This mechanism allows the backrest to tilt independently of the seat pan, ensuring you can lock the chair into the most supportive position for your specific task.
  • Precision Lumbar Alignment: No two users are the same height. With the manual back height adjustment, you can raise or lower the backrest so that the integrated lumbar contour sits exactly in the small of your back, preventing fatigue.
  • Permanent Arm Support: The fixed armrests provide a reliable, grounded platform for your elbows and forearms. This crucial feature helps alleviate tension in the shoulders and neck, which often leads to workplace discomfort.

Certified Durability

  • High-Abrasion Blue Fabric: Upholstered in a heavy-duty, commercial-grade blue fabric, the seat and back are built to resist wear and pilling, maintaining a professional look even in high-traffic administrative hubs.
  • EN 1335 Compliance: This chair meets strict EN 1335-1:2000 and EN 1335-2:2018 criteria. It has been independently verified for its ergonomic dimensions, safety, and structural strength in a commercial setting.
  • Smooth Gas Lift Transition: The reinforced gas strut provides a 110mm height adjustment range (460-570mm), allowing users to find the correct eye level with their monitors while keeping feet flat for healthy circulation.

The Cobolt Standard

  • Free Mainland UK Delivery: At Cobolt, we manage all transport logistics at no extra cost to you. Every chair includes Free Mainland UK Delivery, ensuring transparent pricing for your facility's budget.
  • 50 Years of Mastery: We leverage five decades of B2B expertise to source essential furniture that genuinely thrives under the pressure of the UK's busy educational and public sectors.
  • British Design Focus: This chair is thoughtfully Designed in the UK, ensuring the mechanical adjustments and proportions meet the specific ergonomic needs of the British workplace.

Where is the Fixed-Arm Blue Operator Chair best utilised?

The Blue Fabric Operator Chair is the primary specification for Primary and Secondary School Offices, University ICT Suites, and Healthcare Reception Desks. Its vibrant blue finish makes it an ideal choice for Collaborative Breakout Rooms and modern Staff Rooms.

Key Features

  • Independent Back Rake Adjustment — Independent tilt control for the backrest, lockable in multiple positions.
  • Manual Back Height Control — Allows the seat back to be highered or lowered to provide targeted lumbar support.
  • Contoured High-Density Seat — Designed to distribute user weight evenly and increase ease during long periods of use.
  • Integrated Fixed Arms — Provide a permanent support platform for the upper body to reduce shoulder strain.
  • 110kg Maximum Capacity — Robustly engineered for daily professional use by individuals up to approximately 17 stone.
  • EN 1335 Certified — Complies with European safety and ergonomic standards for commercial office seating.
  • Reinforced Five-Star Base — Fitted with smooth-gliding castors for effortless mobility on all office floor types.
  • Designed in the UK — Engineered specifically to meet the ergonomic and aesthetic standards of the British market.
Warranty icon
3-year commercial warranty
Free delivery icon
Free UK Mainland Delivery
UK Designed icon
Designed in the UK

Cobolt Service & Ethos: Supporting Institutional Estates

  • B2B Quality Assurance: We strictly avoid temporary domestic alternatives, focusing on commercial-grade solutions built for longevity in educational and corporate facilities.
  • Health & Safety Compliance: Our adherence to EN 1335 standards helps your institution meet workplace wellbeing and workstation safety criteria.
  • Specialist Logistics: Chairs are dispatched via professional freight networks to ensure they arrive securely and ready for rapid campus setup.

Certified Security. Proven Performance.

  • Complies with EN 1335 Standards, confirming the chair has passed independent tests for stability, safety, and durability in high-traffic settings.
  • The Gas Lift Height Adjustment is tested for longevity, ensuring the seat remains at your selected level without slipping under load.
  • The Back Rake Lock is a critical safety feature, ensuring the backrest provides a secure, static platform for focused work once adjusted.
  • Features an Ergonomically Contoured Backrest that encourages correct spinal alignment, reducing the risk of musculoskeletal discomfort.
  • This operator chair is protected by our 3-year commercial warranty, covering all mechanical parts and structural integrity under normal office usage.

A professional blue fabric operator chair featuring integrated fixed arms, independent back rake adjustment, and full EN 1335 certification.

Weight Capacity
110kg
Standard
EN 1335
Guarantee
3 Years
Specification
Dimensions
Purpose / Benefit
Total Height
895mm - 1005mm
Variable range to ensure proper spinal support for users of different heights
Seat Height
460mm - 570mm
Ensures the user can maintain an ergonomic 90-degree angle at the knees
Seat Width & Depth
480mm(W) x 445mm(D)
Contoured seat pan increases comfort during long periods of administrative work
Backrest Dimensions
480mm(H) x 450mm(W)
Wide backrest surface provides reliable support across the mid and lower spine
Total Unit Width
480mm
Compact arm-to-arm format designed for efficiency in busy office layouts
Tilt Mechanism
Independent Back Rake
Allows for separate back tilt control lockable in multiple ergonomic positions
Weight
13.6kg
Solid commercial build quality ensuring stability and daily resilience
Fabric Finish
Vibrant Blue Technical Fabric
Tough, breathable upholstery built for high-traffic office and school usage
Origin
Designed in the UK
Refining ergonomic standards for the British workplace environment

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5-7 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Frequently Asked Questions

1. What is "Independent Back Rake Adjustment"?

A: This feature allows you to change the angle of the backrest separately from the seat. You can tilt the back forward or backward and lock it into your preferred position for bespoke lumbar support.

2. Will the armrests fit under my current desk?

A: Yes. This chair is designed to fit standard desk dimensions. The armrests provide stable support but are scaled to ensure the chair can be tucked into most workstations when not in use.

3. Why is EN 1335 certification important for a school office?

A: EN 1335 is the European standard for office work chairs. It guarantees the unit meets strict safety and ergonomic criteria, ensuring you are providing staff with compliant, safe, and durable furniture.

4. Is the backrest height adjustable?

A: Yes. You can raise or lower the backrest manually. This is a vital adjustment to ensure the contoured part of the chair aligns perfectly with the small of your back.

5. What is the weight limit for this operator chair?

A: This chair is structurally rated for a maximum user weight of 110kg (approximately 17 stone), which is the standard for daily professional office seating.

6. Is the blue fabric easy to keep clean?

A: Absolutely. The chair is upholstered in high-abrasion commercial fabric, which is designed to be tough and easy to maintain. Regular vacuuming or wiping with a damp cloth keeps it looking new.

7. Is assembly required upon delivery?

A: Yes, simple assembly is required. The chair arrives with clear instructions and all necessary fixings; most users find they can have it built and ready for use in 10-15 minutes.

8. What exactly does the 3-year warranty cover?

A: Our 3-year commercial warranty provides comprehensive cover for all mechanical components—including the gas lift and tilt adjustments—and any structural defects in the frame.

Overview

Product Overview: Ergonomic Blue Operator Chair with Integrated Arms

Equip your staff or students with an affordable, high-specification seating solution. This blue operator chair is designed to provide consistent support during intensive desk work, combining professional-grade mechanics with a vibrant aesthetic that refreshes any office or classroom interior.

The Cobolt Advantage

  • Independent Back Rake Control: Achieve the perfect sitting angle. This mechanism allows the backrest to tilt independently of the seat pan, ensuring you can lock the chair into the most supportive position for your specific task.
  • Precision Lumbar Alignment: No two users are the same height. With the manual back height adjustment, you can raise or lower the backrest so that the integrated lumbar contour sits exactly in the small of your back, preventing fatigue.
  • Permanent Arm Support: The fixed armrests provide a reliable, grounded platform for your elbows and forearms. This crucial feature helps alleviate tension in the shoulders and neck, which often leads to workplace discomfort.

Certified Durability

  • High-Abrasion Blue Fabric: Upholstered in a heavy-duty, commercial-grade blue fabric, the seat and back are built to resist wear and pilling, maintaining a professional look even in high-traffic administrative hubs.
  • EN 1335 Compliance: This chair meets strict EN 1335-1:2000 and EN 1335-2:2018 criteria. It has been independently verified for its ergonomic dimensions, safety, and structural strength in a commercial setting.
  • Smooth Gas Lift Transition: The reinforced gas strut provides a 110mm height adjustment range (460-570mm), allowing users to find the correct eye level with their monitors while keeping feet flat for healthy circulation.

The Cobolt Standard

  • Free Mainland UK Delivery: At Cobolt, we manage all transport logistics at no extra cost to you. Every chair includes Free Mainland UK Delivery, ensuring transparent pricing for your facility's budget.
  • 50 Years of Mastery: We leverage five decades of B2B expertise to source essential furniture that genuinely thrives under the pressure of the UK's busy educational and public sectors.
  • British Design Focus: This chair is thoughtfully Designed in the UK, ensuring the mechanical adjustments and proportions meet the specific ergonomic needs of the British workplace.

Features & Benefits

Where is the Fixed-Arm Blue Operator Chair best utilised?

The Blue Fabric Operator Chair is the primary specification for Primary and Secondary School Offices, University ICT Suites, and Healthcare Reception Desks. Its vibrant blue finish makes it an ideal choice for Collaborative Breakout Rooms and modern Staff Rooms.

Key Features

  • Independent Back Rake Adjustment — Independent tilt control for the backrest, lockable in multiple positions.
  • Manual Back Height Control — Allows the seat back to be highered or lowered to provide targeted lumbar support.
  • Contoured High-Density Seat — Designed to distribute user weight evenly and increase ease during long periods of use.
  • Integrated Fixed Arms — Provide a permanent support platform for the upper body to reduce shoulder strain.
  • 110kg Maximum Capacity — Robustly engineered for daily professional use by individuals up to approximately 17 stone.
  • EN 1335 Certified — Complies with European safety and ergonomic standards for commercial office seating.
  • Reinforced Five-Star Base — Fitted with smooth-gliding castors for effortless mobility on all office floor types.
  • Designed in the UK — Engineered specifically to meet the ergonomic and aesthetic standards of the British market.
Warranty icon
3-year commercial warranty
Free delivery icon
Free UK Mainland Delivery
UK Designed icon
Designed in the UK

Cobolt Service & Ethos: Supporting Institutional Estates

  • B2B Quality Assurance: We strictly avoid temporary domestic alternatives, focusing on commercial-grade solutions built for longevity in educational and corporate facilities.
  • Health & Safety Compliance: Our adherence to EN 1335 standards helps your institution meet workplace wellbeing and workstation safety criteria.
  • Specialist Logistics: Chairs are dispatched via professional freight networks to ensure they arrive securely and ready for rapid campus setup.

Safety & Warranty

Certified Security. Proven Performance.

  • Complies with EN 1335 Standards, confirming the chair has passed independent tests for stability, safety, and durability in high-traffic settings.
  • The Gas Lift Height Adjustment is tested for longevity, ensuring the seat remains at your selected level without slipping under load.
  • The Back Rake Lock is a critical safety feature, ensuring the backrest provides a secure, static platform for focused work once adjusted.
  • Features an Ergonomically Contoured Backrest that encourages correct spinal alignment, reducing the risk of musculoskeletal discomfort.
  • This operator chair is protected by our 3-year commercial warranty, covering all mechanical parts and structural integrity under normal office usage.

Specification Dimensions

A professional blue fabric operator chair featuring integrated fixed arms, independent back rake adjustment, and full EN 1335 certification.

Weight Capacity
110kg
Standard
EN 1335
Guarantee
3 Years
Specification
Dimensions
Purpose / Benefit
Total Height
895mm - 1005mm
Variable range to ensure proper spinal support for users of different heights
Seat Height
460mm - 570mm
Ensures the user can maintain an ergonomic 90-degree angle at the knees
Seat Width & Depth
480mm(W) x 445mm(D)
Contoured seat pan increases comfort during long periods of administrative work
Backrest Dimensions
480mm(H) x 450mm(W)
Wide backrest surface provides reliable support across the mid and lower spine
Total Unit Width
480mm
Compact arm-to-arm format designed for efficiency in busy office layouts
Tilt Mechanism
Independent Back Rake
Allows for separate back tilt control lockable in multiple ergonomic positions
Weight
13.6kg
Solid commercial build quality ensuring stability and daily resilience
Fabric Finish
Vibrant Blue Technical Fabric
Tough, breathable upholstery built for high-traffic office and school usage
Origin
Designed in the UK
Refining ergonomic standards for the British workplace environment

Delivery & Returns

FREE Delivery to UK Mainland Zone 1

Your order will be delivered on a standard 5-7 Working Days service.

For all other locations, please email help@coboltfurniture.co.uk for a quote.


  • Made to Order: Many of our products are manufactured specifically for your order. Because of this, returns depend on the product specifics and require prior permission from Cobolt Furniture.
  • Cancellations: We always endeavour to reduce cancellation costs. However, please note a partial or entire charge may be levied to cover material costs and administrative fees if a made-to-order line is cancelled.

Product FAQs

Frequently Asked Questions

1. What is "Independent Back Rake Adjustment"?

A: This feature allows you to change the angle of the backrest separately from the seat. You can tilt the back forward or backward and lock it into your preferred position for bespoke lumbar support.

2. Will the armrests fit under my current desk?

A: Yes. This chair is designed to fit standard desk dimensions. The armrests provide stable support but are scaled to ensure the chair can be tucked into most workstations when not in use.

3. Why is EN 1335 certification important for a school office?

A: EN 1335 is the European standard for office work chairs. It guarantees the unit meets strict safety and ergonomic criteria, ensuring you are providing staff with compliant, safe, and durable furniture.

4. Is the backrest height adjustable?

A: Yes. You can raise or lower the backrest manually. This is a vital adjustment to ensure the contoured part of the chair aligns perfectly with the small of your back.

5. What is the weight limit for this operator chair?

A: This chair is structurally rated for a maximum user weight of 110kg (approximately 17 stone), which is the standard for daily professional office seating.

6. Is the blue fabric easy to keep clean?

A: Absolutely. The chair is upholstered in high-abrasion commercial fabric, which is designed to be tough and easy to maintain. Regular vacuuming or wiping with a damp cloth keeps it looking new.

7. Is assembly required upon delivery?

A: Yes, simple assembly is required. The chair arrives with clear instructions and all necessary fixings; most users find they can have it built and ready for use in 10-15 minutes.

8. What exactly does the 3-year warranty cover?

A: Our 3-year commercial warranty provides comprehensive cover for all mechanical components—including the gas lift and tilt adjustments—and any structural defects in the frame.

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