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This model is discontinued

AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X250-40S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

AirTAC SU Series · Discontinued Profile Cylinder

Airtac SUJ Adjustable Cylinder SUJ32X250-40S

The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X250-40S is a double-acting profile-type standard cylinder with a Ø32mm bore and 250mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X250-40S, which matches its bore, stroke, force and mounting.

  • BoreØ32 mm
  • Stroke250 mm
  • Port size1/8"
  • Acting typeDouble acting
  • Rod threadM10×1.25
  • StatusDiscontinued → SAUJ32X250-40S
$74.20 $81.70Save 9% Ships as SAUJ32X250-40S (current AirTAC replacement)
Ships as SAUJ32X250-40S, the current AirTAC direct replacement (same bore, stroke, force, port and mounting). Order this code as usual. Your cart, checkout and order confirmation will show the SAUJ32X250-40S we ship. View SAUJ32X250-40S
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  • No minimum order. A single piece can be ordered.
  • Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
Compare every SUJ32 stroke, stroke adjustment and mounting/version on one page All SUJ32 codes →
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About the Airtac SUJ Adjustable Cylinder SUJ32X250-40S

The AirTAC SUJ32X250-40S is a discontinued double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 210-250 mm range from the 250 mm nominal maximum. The compact extruded aluminum barrel is shorter than a standard cylinder of the same 32 mm bore.

This model is discontinued; the direct replacement is the SAUJ32X250-40S, preserving the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. Note that the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.

Airtac SUJ Adjustable Cylinder SUJ32X250-40S Technical Specifications

ModelAirtac SUJ Adjustable Cylinder SUJ32X250-40S
SeriesSU profile-type cylinder (discontinued)
ReplacementSAUJ32X250-40S
Bore sizeØ32 mm
Stroke250 mm
Acting typeDouble acting
Port size1/8"
Rod threadM10×1.25
FluidAir (filtered by 40µm element)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 800 mm/s
CushionAdjustable, 21 mm
Max standard strokeUp to 1000 mm

Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ32X250-40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.

Theoretical Output Force (Ø32mm)

PressurePush forcePull force
0.5 MPa402 N346 N
0.7 MPa563 N—
Max (@1.0 MPa)82 kgf

The SAUJ32X250-40S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.

Model Code: Airtac SUJ Adjustable Cylinder SUJ32X250-40S

SUProfile-type standard cylinder (discontinued).
32Bore size in mm.
×250Stroke length in mm.
-SOptional built-in magnet for sensor position sensing.

Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.

Where the Airtac SUJ Adjustable Cylinder SUJ32X250-40S Is Used

precision_manufacturing

Probe Contact Gauging

Trimming the extend stroke by up to 40 mm on-site allows precise positioning of a 32 mm bore probe against varied part heights without machining custom spacers.

warehouse

Adjustable Shelf Pusher

Field-tuning the extend end position lets a single cylinder adapt to different carton depths in a storage system, providing exact ejection without re-plumbing the 1/8" port.

Replacing the Airtac SUJ Adjustable Cylinder SUJ32X250-40S with the SAUJ32X250-40S

To replace the discontinued SUJ32X250-40S, order the SAUJ32X250-40S direct; it maintains the 32 mm bore, 250 mm stroke, 1/8" port, and FA/LB mounting. Choose the 40 mm adjust window if your fixture requires precise on-site extend tuning from 210 to 250 mm. Because this unit has the -S magnet, you must switch from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors on the SAUJ. For stroke lengths at or above 300 mm, verify your side-load limits to prevent guide wear. The stop screw trims position but does not lock the load—add an external rod lock for pneumatic holding.

Replacement checklist

  • ✓ Same bore / stroke → SAUJ32X250-40S
  • ✓ Port/thread type (PT/G/NPT)
  • ✓ Magnet (-S): sensor family CS1-B → CMSG
  • ✓ Mounting reused (FA/FB/CA/CB/LB)
  • ✓ Need a built-in valve? → SAUF
Ask an Engineer

Airtac SUJ Adjustable Cylinder SUJ32X250-40S FAQ

Yes, the SUJ32X250-40S is discontinued. You must upgrade your sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches.

The external stop screw has a 40 mm window, allowing you to shorten the 250 mm maximum extend stroke down to 210 mm on-site. The stop sets the end position but is not a load lock.

Related AirTAC SAU Cylinders

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