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AirTAC TN20 · Twin-Rod Cylinder (enterprise standard)

Airtac TN Double Axis Double Rod Cylinder TN20X35S

The AirTAC Airtac TN Double Axis Double Rod Cylinder TN20X35S is a genuine TN twin-rod (double-rod) double-acting cylinder, 20 mm bore. Two parallel rods on one plate resist bending and twisting and let the load mount without rotating. It delivers about 314.2 N of push at 0.5 MPa. A front bumper cushions the impact and adjusts the stroke over a -5 to 0 mm range.

  • TypeTwin-rod, double acting
  • Standardenterprise standard
  • Bore20 mm
  • Push thrust @0.5 MPa314.2 N
  • Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
  • Port sizeM5x0.8
  • CushionAdjustable bumper (-5 to 0 mm)
  • MagnetStandard (sensor-ready)
  • ThreadPT
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About the Airtac TN Double Axis Double Rod Cylinder TN20X35S

TN20X35S is a double-acting twin-rod cylinder in which two parallel rods drive a single shared plate, so the mounted load does not rotate and the plate resists bending and twisting. The 20 mm bore with 35 mm stroke gives a theoretical push thrust of 314.2 N at 0.5 MPa (pull side is lower), covering short-stroke eject, clamp and lift duties. The external front bumper cushions impact and adjusts the effective stroke over -5 to 0 mm.

This is a genuine AirTAC part from the TN series, made to the ENTERPRISE standard for twin-rod cylinders with PT port threads. The magnet is standard on every TN20X35S, with magnetic-switch slots around the body for position feedback. Typical materials include an aluminium-alloy body and NBR seals; we route bore-specific material and exact dimension details to the datasheet and confirm sizing with you on request.

Airtac TN Double Axis Double Rod Cylinder TN20X35S Technical Specifications

ModelAirtac TN Double Axis Double Rod Cylinder TN20X35S
TypeTwin-rod cylinder, double acting
Series / standardTN (enterprise standard)
Bore20 mm
Push thrust @0.5 MPa314.2 N
Port sizeM5x0.8 (PT thread)
FluidAir, filtered to 40 um
Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
Proof pressure1.5 MPa (215 psi)
Temperature-20 to 70 C
Speed range30 - 500 mm/s
CushionBumper, stroke adjustable -5 to 0 mm
MagnetStandard (magnetic-switch slots around the body)

Specifications follow the official AirTAC TN/TR twin-rod data. Operating pressure is set by bore (0.2 MPa minimum on the 6 and 10 mm bores). The front cover and piston are short, so avoid an over-long stroke. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.

How to choose

Start with thrust: this 20 mm bore delivers 314.2 N theoretical push at 0.5 MPa, and the 16-32 mm bore group operates at 0.15-1.0 MPa (22-145 psi). Choose a smaller bore if 314.2 N is more than the job needs, or 25/32 mm for more. Stroke 35 mm is a standard step in the 20 mm bore's table; avoid going much longer than required, as body length increases with stroke.

TN is the ENTERPRISE-standard series and offers PT threads only. If you need G or NPT ports, or the TR series' precise guide grade with its lengthening sliding-support guide and two groups of ports on both sides, specify TR instead. Allowable side load is published only as curves; send us your load case and we will confirm from the datasheet.

Applications

settings

Machine clamp with position check

Clamps a workholding fixture closed on a CNC fixture plate. The twin rods keep the clamp plate from twisting as force builds, and the standard magnet in the body slots feeds a clamp-closed signal to the controller.

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Slide-gate opener

Opens and closes a sliding gate or chute diverter by 35 mm. Two rods drive the gate plate in parallel so it slides without cocking in its channel, and the bumper takes the shock at each end of travel.

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Eject or lift step

Lifts or ejects a small part out of a nest to the next station. The shared plate rises evenly so the part does not tip, and the -5 to 0 mm bumper adjustment sets the exact lift height finish point.

FAQ

Should I pick TN or TR for this 20 mm bore size?

Both series cover the 20 mm bore and both are twin-rod double-acting. TN is the ENTERPRISE standard with PT threads only; TR is the JIS-standard series with PT, G or NPT threads and adds higher non-rotating precision, low rod-end deflection and a lengthening sliding-support guide that needs no added lubricant. Choose TR when guide precision or alternate thread types matter.

Can I mount a heavier load on one side of the plate?

The two parallel rods let the TN20X35S carry loads mounted on the plate without rotation and resist bending and twisting, so moderate off-center mounting is the intended use. The published side-load and deflection limits are given as curves, not single numbers, so confirm your specific load from the datasheet or ask us.