This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X45S, 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 SU32~50 Standard Cylinder SU50X45S
The AirTAC Airtac SU32~50 Standard Cylinder SU50X45S is a double-acting profile-type standard cylinder with a Ø50mm bore and 45mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X45S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke45 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X45S
- 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.
About the Airtac SU32~50 Standard Cylinder SU50X45S
The AirTAC SU50X45S is a discontinued double-acting profile-type cylinder with a 50mm bore and 45mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it is more compact than an ISO 15552 cylinder of the same bore while sharing AirTAC SC-series mounting accessories. It delivers 982 N push and 825 N pull force at 0.5 MPa, with a 1/4" port and an M16x1.5 piston rod thread.
AirTAC replaced this end-of-life unit with the SAU50X45S, a direct replacement retaining the exact body, bore, stroke, output force, port size, and SC-series mounting. The upgrade introduces current CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches used on this -S model, and the SAUF variant adds a built-in 4M solenoid valve the SU line never had.
Airtac SU32~50 Standard Cylinder SU50X45S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X45S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X45S |
| Bore size | Ø50 mm |
| Stroke | 45 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X45S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X45S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU50X45S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×45 | 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.
Where the Airtac SU32~50 Standard Cylinder SU50X45S Is Used
Compact Part Ejection
Ideal for pushing machined components out of a fixture using 982 N of force at 0.5 MPa within a tight machinery footprint.
Package Diverting
Handles light diverting or sorting tasks on a 50 kg payload line where the 45mm stroke rapidly actuates a routing gate.
Replacing the Airtac SU32~50 Standard Cylinder SU50X45S with the SAU50X45S
To replace the discontinued SU50X45S, order the SAU50X45S direct equivalent, confirming the 50mm bore, 45mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are retained. Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must be upgraded to the current CMSG/DMSG/EMSG sensor family on the SAU. If sizing neighbors, a 40mm bore yields 628 N push while a 63mm bore yields 1559 N at 0.5 MPa. For load holding, note that a plain double-acting cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for suspended loads. If your application needs self-switching, consider the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X45S
- ✓ 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
Airtac SU32~50 Standard Cylinder SU50X45S FAQ
Yes, the SU50X45S is discontinued. The direct replacement is the AirTAC SAU50X45S. It features the same 50mm bore, 45mm stroke, 982 N output force at 0.5 MPa, 1/4" port, and SC-series mounting. You simply order the SAU50X45S to swap it directly.
At 0.5 MPa it provides 982 N push and 825 N pull; at 0.7 MPa it pushes 1374 N, and the theoretical max is 200 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Request a Quote for the SAU50X45S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X45S replacement — usually within 7-8 hours.