Bolt to floor swivel chair and stool bases

Bolt to floor swivel chair bases are chiefly used when a stationary chair or stool is desirable. Idea development, special purpose chair, stool or for use on stationary or portable table base systems. These bolt down to floor bases are commonly seen as Jury bases. A wide variety of setups can be employed and are available for either Manual or Gas lift height adjustment.

Features for Manual height:

  • Automatic self return to starting position
  • Used with any Manual Mechanism offered. Style #475 recommended
  • 7" (in stock) and 9 1/4" standard heights
  • 180° left and right rotation in stock. Other available by special order
  • Proven Heavy duty steel construction
Style #515...Call for current pricing #515 is for Manual height adjustment mechanisms. #475 mechanism recommended (shown at right)
A Cam is required to have a gravity automatic memory and return to the original position
Bolt down base is 1/4" plate steel and 8" diameter with 6 countersunk 5/16" bolt or #14 screw holes
Overall height 7 3/4" with cam installed. Tested and approved ANSI/BIFMA.
Style #517...$129.85 is for Gas height adjustment mechanisms.
Accepts all 50mm (2") gas cylinders. The 5 9/16" overall height does not require a floor hole for cylinder operation. Self return cylinders are also available by special order.
Bolt down base is 8" diameter 1/4" thick plate steel with 6 countersunk bolt or screw holes on a 6" diameter.

Tested and approved ANSI/BIFMA.
seat-plate- 6"-gas
Gas cylinder releaser plates below provide Height adjustable only
Non-rotational cylinders available
6 5/8" square plate
Mounting hole pattern, 5 1/2"

Style #2399...$32.50

Block 3" square
Mounting holes, 2 1/8"
Block height, 2 11/64"

Style #2093...$24.60

Cam (Teflon) $26.35
Swivel Chair Replacement Parts