Malmstolen 4000 Classic Back Care Chair


Malmstolen 4000 Classic is probably the most comfortable office chair you will ever sit in and ideal for the back pain sufferer.

It comes with the unique Dux sprung seat. It has to be sat in to believe how comfortable it is.

Ideal for people who work long hours and are adaptable to suit most user requirements. The chair has an excellent mechanism that can be adjusted to your individual needs and provides a perfect combination of movement, support, and relief - all day long.

The combination of the Dux sprung seat and a dynamic mechanism significantly improves the user's freedom of movement - reducing muscle strain also promoting blood circulation helping to keep you alert and focused longer. The Classic 4000 is available with a high back that can be adjusted to your requirements. An ideal chair for those with back tension problems or more severe back injury.

The neck rest is one of the most adjustable in the industry and can give support to most neck problems.

Armrests are 4D adjustable and extremely supportive.

It is ideal for users up to 110kg.

For users over 110kg, the larger 7000 range is ideal for users up to 130kg


€1,831.47incl VAT

Prices quoted are ex VAT

Best chair for comfort with back pain

Sit extremely comfortably in a chair that keeps things in balance no matter how you choose to sit.

The Model 4000 is a work chair with an elbow-joint tilt mechanism, with the axle of rotation located just under the front of the seat. Tilt range: from 17° backwards to 4° forwards. Correctly adjusted, the tilt mechanism offers very good balance, making the chair very accommodating to movement.

• Tilt resistance can be adjusted to match the user’s height and weight

• The backrest is freely height adjustable

• Freely adjustable backrest angle

• The chair is freely height adjustable

• Six-position seat depth adjustment within a range of 8 cm

• Available as ESD model

• Certified for 24 hours of use

• As standard the chair is fitted with castors for soft floors, a black base and a polyether foam seat.

Gives extreme comfort and posture support

1. With its four elastic bands, the backrest adjusts to the natural shape of your back. Your back receives maximum support and is held in a natural upright position with a minimum of muscle strain. This relieves the muscles and enables them to relax.

2.Armrests can offer comfort to those who wish to vary their work posture. Malmstolen offers several different armrests among its accessories. All armrests are height adjustable and easily attached and removed. Moreover, ErgoFlex also features depth adjustment and can be rotated 25° inwards.

3.The adjustable headrest is an optional accessory that relieves head and neck muscles. Perfect for those who like to use the chair’s tilt function and to work in a reclined position now and then.

4.The aluminium base is available in two models - polished and black (painted). To keep your chair mobile, you can also choose castors that suit your workplace floor. Soft castors for hard floors and hard castors for soft floors.

System Classic
Tilt knee-tilt mechanism
Tilt range 17° backwards, 4° forwards
Seat height approx. 45-55 cm
Seat depth setting 6 positions/8 cm
Backrest setting variable/approx. 15 cm
Backrest incline variable
Seat D: 46 cm W: 47 cm
Backrest High H: 61 cm W: 42 cm
Backrest Medium H: 49 cm W: 42 cm
Chair base 72 cm diameter
Maximum user weight 110 kg
Wheels for hard floors Yes
Gas column higher/lower
Polished base Yes
Pascal by DUX seat Yes
Jointed neckrest Yes with high back
Armrest Corona Plus/ ErgoFlex
Tilt stop Yes
Foot ring No



In stock, goods will be dispatched from our ware house within 2-3 business days.

Box delivery with our courier.


Returns policy.


In the event of receiving this item damaged on delivery please let us know within 24 hours of receipt so that you can make a valid claim.


If you change your mind on purchase, please notify us within 14 day of purchase should you wish to return items.  You will need to ring for a Returns Note Number, which you will need to quote when returning items.   Goods must be unused, unopened, in a salable condition and in their original packaging. 


If the item has been sent in error or is defective KOS will arrange collection and return.  Otherwise the onus is on the customer to arrange and pay for the return of the items.


Refunds will be issued on receipt of returned goods in salable condition.


If you change your mind on purchase, please notify us within 14 day of purchase should you wish to return items. You will need to ring for a Returns Note Number, which you will need to quote when returning items. Goods must be unused, unopened, in a salable condition and in their original packaging.


If the item has been sent in error or is defective KOS will arrange collection and return. Otherwise the onus is on the customer to arrange and pay for the return of the items.

Refunds will be issued on receipt of returned goods in salable condition

Filter reviews

I went into the KOS showroom and it was like an assessment. One of their physios guided me through the products. Really excellent service and the chair is perfect for me. I think this is thanks to the set up. Really happy all round.
John F. on 22/09/2020 Supports the whole body perfectly
I never knew there was so much to a chair. It fits perfectly. Supports me in every inch of my body. It's perfect. Thanks for the quick deliery and set up.
Mark R. on 10/04/2021 Never appreciated a chair so much
I've never sat on a chair like it. The spring system in the seat just makes it more comfortable and I love how the backrest and neckrest supports me the whole way up my back. The recline took a bit of getting used to but I'll never sit in a locked chair again now!
Philip E. on 30/10/2020 Unbelivable sitting comffort
I've tried endless chairs and done loads of research online, which lead me to Kos. The showroom appointment was such a big help. Just have an expert to recommend what will work and to help with the set up. I had back pain for the last 15 years and don't experinece any pain since getting this chair. Thanks guys!
Alice K. on 10/02/2020 Best Chair for back pain!
I orginally went for another chair, a Logic that was good but just wasn't for me. I rang James and went through my requirements and he suggested the Malmstolen. It's like it was made for me, it really is. I love the way you can adjust the support the whole way up the back and the neckrest is a different level to my last chair.
Alannah M. on 18/03/2021 The perfect match for me.
Annette Shannahan - Owner ..

We at Abbey Physio and HealthcareDirect have worked very effectively and on many occasions with Seamus and the team at Kos Ergonomics when seeking solutions and resolving work-related...

Eileen Murphy - Physiotherapist ..

I recommend patients to KOS. They have experience and expertise with ergonomic solutions for patients with particular problems. When they sell a chair, they ensure that the chair is fitted...

Padraic O'Fiynn - Ergonomist ..

Since 2006, working as a chartered ergonomist with KOS Ergonomic solutions has greatly contributed to an early and safe return to work mainly for staff and where necessary students of the...

Kathleen Treanor - Ergonomist ..

I Kathleen Treanor have worked collaboratively with KOS and Seamus Kennedy since 2000. We have worked together with many organisations both public and private, to provide professional...

Sarah Carry - UCD ..

Since first contacting KOS Ergonomic Solutions in 2010, l have found their service reliable and efficient, combining excellent customer service and product expertise with a range of ergonomic...

Eileen Hannon - Stryker ..

KOS Ergonomic Solutions has supplied us with chairs for our Beading Room which have been very beneficial to the safety and comfort of our employees working in this area. These chairs are used 14-18...

Alison Minter - Paypal ..

Just wanted to say thank you for the quick and efficient service over the last year. It’s been a pleasure dealing with you and I would highly recommend KOS to anyone

Irene O'B - Physio & Ergonomist ..

Following a fall from a bicycle I sustained a T10 (mid back) wedge fracture with no nerve damage. I also reinjured my neck having sustained a whiplash injury some 20 years previously. Three months...

Karol Fitzgerald - Athlone IT ..

As I informed you previously to my numerous back problems, resulting from fracturing a couple of vertebra in my lower back a number of years ago. This later caused disc to slip, trapping nerves...


KOS Ergonomics Ireland

Since 1991, we have been working with companies and individuals as the leading provider of ergonomic office furniture in Ireland.

We currently provide a full ergonomic service from office to home with our ergonomic homeworker packages, sit stand desks , ergonomic chairs , remote assessments and KOS Ergonomic program management software.

Discover our wide range by booking a showroom consultation or by shopping online!

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We can provide you with a VDU Assessments when you visit our showrooms in Dublin or in Holycross in Tipperary.

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