The SF-150 is an ergonomic stool that can adapt to multiple environments. It allows moving very easily depending on the task at hand while reducing any discomfort. It offers liberty of movement and blood circulation for workers.

Weld overlay

Product Description

  • 2’’ height adjustment "Floating without interval"
  • Backrest adjustment rage 12’’ to 14’’
  • Ergonomic padded backrest (12,75’’w x 6,5’’h)
  • High resilience Velva foam
  • Profiled seat (12,5”w x 12”d x 2”h)
Seat height adjustment
  • Cylinder 140 mm (18”-23”)
  • Backrest adjustment
  • Seat height adjustment
  • 28” industrial steel
  • 3” rubber casters (slow rolling)
  • Profiled seat (17’’w x 16’’d x 2’’h)
Seat height adjustment
  • Cylinder 80 mm (15,5”-18,5”)
  • Cylinder 100 mm (16,5”-20,5”)
Casters and Glides
  • 3” rubber casters with brake (slow rolling)
  • 3” double rubber casters (fast rolling)
  • 3” double rubber casters with brake (fast rolling)
  • 2” glides
  • 3” glides
Additional options
  • Memory foam (seat)
  • Memory foam (backrest)
  • Tool compartment (11’’w x 6’’d x 1’’h)
  • Tool compartment (19’’w x 8’’d x 1’’h)
  • Welding
  • Aerospace
  • Industrial/mining
  • Transport
  • Pharmaceutical industry
  • Food industry
  • Seat height and depth adjustments for users of different sizes
  • Adjustable back rest height provides optimal back support
  • Reduces lower limb muscular effort

Limited warranty


Synetik Ergodesign offers the following warranties on its components:

Lifetime*: The chair/stool structure and pneumatic cylinder.
10 Year Warranty*: The seat mechanism, foam and fabric.
1 Year*: The casters and glides.


This warranty does not apply to products that must be replaced after normal wear and tear, or as a result of negligence, abuse, shipping damage or use other than in accordance with the instructions and warnings.

• Changes in surface finishes, including colorfastness, due to aging, exposure to light or direct sunlight
• Marks, scars, or wrinkles occurring naturally in leather
• Failure resulting from normal wear and tear
• Matching of colors, grains, or textures of natural materials
• Colorfastness or the matching of colors of textiles or surface finishes, including an exact match
• Damage or marking of materials or abrading of textiles over time caused by sharp or foreign objects
• Discoloration of textiles and surface materials due to soiling, stains, or dye transfer from clothing, including denim
• Synetik does not warrant products that are exposed to extreme environmental conditions or that have been subject to improper storage.
• Damage and/or injury due to improper use or unauthorized modification of the Product, contamination and lack or improper maintenance procedures.
• Fabric damage due to cleaning product.


The mechanisms, foam, and fabric are warranted for 10 years from the date of purchase. The Plus Size seating warranty is valid for users weighing up to 350 lbs (159 kgs). For all 24-hour seating, the warranty is valid for continuous use multi-shift operations for users weighing up to 350 lbs.



All components designated as for welding use are covered with flame retardant material. Improper use and maintenance may negatively affect the flame-retardant properties of the surface.



During the warranty period, Synetik Ergodesign will repair or replace any products covered by this warranty found to be defective. Claims must be made with a Synetik Design representative. Any defective product must be made available to the Synetik Design representative for inspection. This warranty is only valid according to the terms above and only for the original purchaser. The original purchaser is the one who purchased the new products at Synetik Design or at one of its authorized distributors for their own use. This warranty extends only to the original purchasers who acquire new product from Synetik, its subsidiaries, or its authorized resellers. Any product, part, or component must have been used according to Synetik’s published instructions and installed and maintained by a Synetik factory-trained technician or an authorized Synetik dealer installer. If these requirements are met, warranty coverage will be extended. Any misuse, abuse, or modification to the original product voids the warranty.


*The lifetime, 10 year and 1 year warranty are based on standard hours of daily use as listed below:

Model Hours of use per day Weight
TA, Stag, Flex Single shift Under 280 lbs
SF, TF Single shift Under 280 lbs
Synergo 24/7 workstation Under 300 lbs
Synergo Bariatric 24/7 workstation Under 350 lbs
Ergonomic Cushion Single shift Under 280 lbs

Expert’s opinion

Maggie Lambert


This chair is efficient, comfortable and convenient. It allows the user to complete tasks while seated with the back supported as well as easy movement.

Contact an expert!