Office & swivel chairs
Match the seat-mechanism socket, base taper and installed seat-height range.
Chair gas-lift columns for swivel chairs, office chairs and adjustable stools. The supply specification identifies the complete column or internal cylinder, seat/base tapers and release interface. Compare 12 published column references, or see sizes and options for office chair gas cylinders.
Matching product family: Chair gas-lift columns →

A complete chair gas-lift column includes the outer tube and seat/base interfaces. An internal gas cylinder is a separate supply item. The release button works with the seat lever to control height adjustment.

Match the seat-mechanism socket, base taper and installed seat-height range.
Different column heights and adjustment ranges need their own matching dimensions.
Identify the complete column by its seat and base tapers, tube dimensions, release interface and installed height.
The quotation brings together the component, dimensions, connections and order quantity. An existing marking or drawing provides the starting specification; millimeters or inches are accepted.
Original code, complete column photo and the component drawing if available.
Extended length L, outer tube length B, taper position C and both tube diameters.
Required adjustment and installed seat height; do not equate travel with total chair height.
Seat/base taper details, release button/lever interface and order quantity.
A published spring extension force is not an occupant weight rating. Column stroke and the stated seat-adjustment range can also differ.
Choose a reference and include your quantity. Keep the reference, dimensional scope and mechanism conditions with your request.
Third-party brand names and part numbers are shown for cross-reference only. Send the reference and quantity; we quote gas springs made in our own factory and confirm the dimensions and connections in your quotation.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 395.5 mm / 15.57 in
Stroke: 132.5 mm / 5.22 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 94 mm / 3.70 in; Standpipe length B: 220 mm / 8.66 in; Seat adjustment range: 120 mm / 4.72 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 169–301.5 mm / 6.65–11.87 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 395.5 mm / 15.57 in
Stroke: 132.5 mm / 5.22 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 104 mm / 4.09 in; Standpipe length B: 220 mm / 8.66 in; Seat adjustment range: 120 mm / 4.72 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 159–291.5 mm / 6.26–11.48 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 395.5 mm / 15.57 in
Stroke: 132.5 mm / 5.22 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 114 mm / 4.49 in; Standpipe length B: 220 mm / 8.66 in; Seat adjustment range: 120 mm / 4.72 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 149–281.5 mm / 5.87–11.08 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 395.5 mm / 15.57 in
Stroke: 132.5 mm / 5.22 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 124 mm / 4.88 in; Standpipe length B: 220 mm / 8.66 in; Seat adjustment range: 120 mm / 4.72 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 139–271.5 mm / 5.47–10.69 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 395.5 mm / 15.57 in
Stroke: 132.5 mm / 5.22 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 164 mm / 6.46 in; Standpipe length B: 220 mm / 8.66 in; Seat adjustment range: 120 mm / 4.72 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 99–231.5 mm / 3.90–9.11 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 354.5 mm / 13.96 in
Stroke: 111.5 mm / 4.39 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 76 mm / 2.99 in; Standpipe length B: 200 mm / 7.87 in; Seat adjustment range: 100 mm / 3.94 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 167–278.5 mm / 6.57–10.96 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 354.5 mm / 13.96 in
Stroke: 111.5 mm / 4.39 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 100 mm / 3.94 in; Standpipe length B: 200 mm / 7.87 in; Seat adjustment range: 100 mm / 3.94 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 143–254.5 mm / 5.63–10.02 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 354.5 mm / 13.96 in
Stroke: 111.5 mm / 4.39 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 110 mm / 4.33 in; Standpipe length B: 200 mm / 7.87 in; Seat adjustment range: 100 mm / 3.94 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 133–244.5 mm / 5.24–9.63 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 354.5 mm / 13.96 in
Stroke: 111.5 mm / 4.39 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 126 mm / 4.96 in; Standpipe length B: 200 mm / 7.87 in; Seat adjustment range: 100 mm / 3.94 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 117–228.5 mm / 4.61–9.00 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 313.5 mm / 12.34 in
Stroke: 90.5 mm / 3.56 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 76 mm / 2.99 in; Standpipe length B: 174 mm / 6.85 in; Seat adjustment range: 80 mm / 3.15 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 147–237.5 mm / 5.79–9.35 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 313.5 mm / 12.34 in
Stroke: 90.5 mm / 3.56 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 96 mm / 3.78 in; Standpipe length B: 174 mm / 6.85 in; Seat adjustment range: 80 mm / 3.15 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 127–217.5 mm / 5.00–8.56 in
Spring extension force is not an occupant weight rating.
Match full column, taper position, seat/base interfaces and release mechanism; stroke differs from the published seat adjustment range.
Complete chair gas-lift column
Drawing length L: 313.5 mm / 12.34 in
Stroke: 90.5 mm / 3.56 in
Spring extension force: 350 N / ≈78.7 lbf
Column drawing length L, not eye-to-eye strut length
Chair seat/base taper interfaces; taper position C is part-specific
Taper position C: 104 mm / 4.09 in; Standpipe length B: 174 mm / 6.85 in; Seat adjustment range: 80 mm / 3.15 in; Outer tube diameter: 50 mm / 1.97 in; Pressure tube diameter: 28 mm / 1.10 in; Drawing dimension A: 119–209.5 mm / 4.69–8.25 in
Spring extension force is not an occupant weight rating.
Need another reference? Send the complete marking, photos and quantity →
Your quotation identifies the gas-spring component, selected connections, quantity and packaging requirements. Use the same agreed specification when reordering.