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WorkPro® Quantum 9000 Series Ergonomic Mesh Mid-Back Chair, Black Item # 510830
Lean back and relax in a chair that you can adjust to the needs of the situation or the user. Having a place to work comfortably makes it easier to stay focused on the task at hand and get the job done quickly.
- Overall Dimensions: 43 3/4"H x 29 1/2"W x 28"D.
- Adjustable armrests with unique gel padding help relieve shoulder strain.
- Seat cushion glides forward or backward to customize the chair to your body's shape.
- Adjustable tilt angle allows you to move the seat and back for flexibility.
- Waterfall seat cushion slopes slightly downward to help reduce stress on your legs. Easy on the knees, the curved cushion is shaped to naturally fit the position of your legs while you work.
- Steel frame construction ensures durability.
- Weight capacity tested to support up to 250 lb.
- Assembly is required. Easy assembly instructions are included.
- Backed by the manufacturer's 10-year limited warranty.
- GREENGAURD certified — certified for low chemical emissions: UL.COM/GG - UL 2818. Ranked in two tiers: Certified and Gold.
- Greener choice — contains 55% postconsumer recycled content.
|chair back style||mid-back|
|adjustable tilt angle||yes|
|waterfall seat cushion||yes|
|adjustable height range||37 1/2" - 43 3/4"|
|adjustable tilt tension||yes|
|adjustable arm height||yes|
|adjustable back height||yes|
|adjustable arm width||yes|
|adjustable seat back depth||yes|
|adjustable back angle||yes|
|postconsumer recycled content||55%|
|meets/exceeds ANSI/BIFMA standards||yes|
|Eco-conscious||recycled content; less harsh chemicals|
|recommended daily usage||Professional (8-10 hours)|
|dimensions||43 3/4"H x 29 1/2"W x 28"D|
|seat size||20 1/2"W x 19 1/4"D|
|distributor||Swinton Avenue Trading Ltd., Inc.|
|back cushion height||20" - 23" inches|
|adjustable knee tilt||no|
|total recycled content||55%|
|adjustable seat height||pneumatic/1-touch|
|adjustable forward tilt||no|
|warranty length||10-year limited|
|weight capacity||250 lb|
|Show More ▾|
Product Q & A
Ask your questions. Share your answers.
Yes, this chair can be assembled and used without the arms.
Very sturdy chair. Good if want Back comfort for sitting at extended periods of time. hope this Helps
The RealspacePRO Quantum/9000 chair is designed and manufactured to support body weight up to 250 pounds.
To help gauge fit based on your height, we recommend visiting a store and sitting in the chair. Take a few minutes to work the adjustment features also (especially chair height, seat back height & angle, lumbar support, and chair arm height & width). That way you can best determine if the adjustability ranges fit your body.
I am tall (6' 2") so I like the back in the highest position--the 5th click up. Which is another problem: I can't simply slide the back all the way up to adjust it, because all the way up is the release position and it slides back down. Instead, I have to carefully count 1-2-3-4-5 clicks to get it to the 5th position. This wouldn't be so bad if I didn't have to do this every time I got up and sat back down.
Hopefully there's a trick--or the manufacturer can come up with a better way to lock the back in place.
The chair back typically stays firmly in place while seated.
One idea is that you may need a bigger or more heavy duty chair.
The Quantum chair supports body weight up to 250 pounds.
If you weigh more, you will be more comfortable and supported in a big & tall chair.
I'm 6'1", 200# and the chair fits me just about perfectly. It's got a tag that says it's only good up to 250#. I think you'd find it too thin across and the fact it's just a mesh seat, not firm with foam would probably be a problem for weights over 250#.
This chair supports body weight up to 250 pounds.
We would recommend a big & tall chair for a body weight of 275 pounds.
There are a few upholstered options in our Thomasvile Style@work offer.
If you like Mesh, you might like one of these....
Item # 271230
Item # 399940
Item # 399945
A big & tall chair will fit your body dimensions and weight more comfortably and give it the support it needs throughout the work day!
Thank you so much!
I tried one in the store (without any directions) and it seemed that both tilted at the same time, so I couldn't tilt the back without tilting the seat, etc. Also, I could only get it to lock in a few positions--level, and tilted back.
Thank you for the quick answer. I bought the chair but I can't get the back tilt to infinitely adjust. When I loosen the Tilt Lockout handle, the back does tilt to any position. But when I lock it, it snaps in one of only three positions. Am I doing something wrong or is that the way it is designed?
Unfortunately, the back and seat do not tilt independently. The "synchro tilt" feature means the seat tilts back a little as the back tilts back. Worse, there are only 3 positions: back near vertical, back slightly tilted back, and back tilted way back. (With seat tilting at the same time). If one of the first two positions fits you, it's great. But if you need a slightly different position for the best ergonomic fit, you are out of luck.
We have about ten of these chairs at work.
You can create a personalized fit
for the Realspace PRO Quantum/9000 chair
by reading pages 12-18 in your assembly guide.
If your guide is missing, you can click on the
assembly instructions icon on the selling page
using the link/path below.
The icon sits under the price and selling availability information for Item # 510830.
All RealspacePRO Quantum Mid-Back Task chairs
(in various colors) adjust the same way.
We recommend saving the guide on your phone, tablet or
laptop to keep as a reference guide.