This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X480S, 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.

The AirTAC Airtac SU32~50 Standard Cylinder SU40X480S is a double-acting profile-type standard cylinder with a Ø40mm bore and 480mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X480S, which matches its bore, stroke, force and mounting.
The AirTAC SU40X480S is a discontinued double-acting profile-type cylinder with a 40 mm bore and 480 mm stroke. It delivers 628 N push and 528 N pull at 0.5 MPa via a 1/4" port. AirTAC replaced this end-of-line unit with the SAU40X480S, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting.
The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore. Note the -S magnet on this legacy unit operated CS1-B/DS1-B switches, whereas the SAU replacement uses current CMSG/DMSG/EMSG sensors; the SAU line also adds a SAUF built-in-valve option the SU lacked.
| Model | Airtac SU32~50 Standard Cylinder SU40X480S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X480S |
| Bore size | Ø40 mm |
| Stroke | 480 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU40X480S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X480S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×480 | Stroke length in mm. |
| -S | Optional 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.
Pushes light packages at 30-800 mm/s on packaging lines, using the 628 N push force to deflect goods without stalling the belt.
Raises a 32 kg access flap using the 480 mm stroke, requiring an external check valve to prevent the load from dropping if air pressure is lost.
Clears machined parts from a fixture over a 480 mm span, relying on external guides to protect the 16 mm rod from bending during ejection.
To replace the SU40X480S, order the SAU40X480S and verify your 1/4" port, M12x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because the -S magnet is present, prepare to swap legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors on the new cylinder. If you need self-switching, explore the SAUF variant with its integrated 4M solenoid valve. For loads exceeding the 32 kg vertical lift limit, step up to a 50 mm bore (982 N push at 0.5 MPa). At 480 mm, this long stroke demands external guide rails to prevent rod bending and side-load damage. Finally, a plain cylinder drifts on air loss—the 21 mm cushions only decelerate—so fit an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
Yes, the SU40X480S is discontinued. The direct replacement is the AirTAC SAU40X480S. It matches the 40 mm bore, 480 mm stroke, 1/4" port, force, and SC-series mounting, but you must upgrade from CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors.
It features a 1/4" air port. The thrust is 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. The 21 mm cushions only decelerate the load; they do not hold it without live air.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X480S replacement — usually within 7-8 hours.