This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X325, 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 SU50X325
The AirTAC SU32~50 Standard Cylinder SU50X325 is a double-acting profile-type standard cylinder with a Ø50mm bore and 325mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X325, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke325 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X325
- 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 SU50X325
The AirTAC SU50X325 is a discontinued double-acting profile-type cylinder with a 50mm bore and 325mm stroke. It delivers 982 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU50X325, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches, and adds the SAUF built-in 4M solenoid valve option. Note this SKU lacks a magnet and cannot support sensing.
Airtac SU32~50 Standard Cylinder SU50X325 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X325 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X325 |
| Bore size | Ø50 mm |
| Stroke | 325 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 SAU50X325 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 SAU50X325 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 SU50X325
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×325 | 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 SU50X325 Is Used
Gate Actuation
Operates access gates on automated machinery where the compact profile body saves space compared to older ISO standards.
Replacing the Airtac SU32~50 Standard Cylinder SU50X325 with the SAU50X325
To replace the SU50X325, order the SAU50X325. Verify your 1/4" port thread (PT, G, or NPT), M16x1.5 rod end, and SC-series mounting (LB/FA/FB/CA/CB). Because this is a non-magnetized SKU, it cannot accept a sensor; if you need position detection, specify an SAU50X325S and migrate to CMSG/DMSG/EMSG switches. For the 325mm stroke, use an external guide to prevent rod bending under side loads. The SAUF variant integrates a valve for self-switching. Sizing alternatives: a 40mm bore yields 628 N push, while a 63mm bore yields 1559 N. Remember, the air cushion only decelerates; use an external rod lock or pilot-operated check valve to hold loads safely.
Replacement checklist
- ✓ Same bore / stroke → SAU50X325
- ✓ 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 SU50X325 FAQ
Yes, the SU50X325 is discontinued. The direct replacement is the AirTAC SAU50X325. It shares the same 50mm bore, 325mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it fits your existing application directly.
At 0.5 MPa it provides 982 N push and 825 N pull force, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. This specific SKU has no magnet and cannot accept a sensor. The SAU replacement uses CMSG/DMSG/EMSG switches if you order the -S variant.
Request a Quote for the SAU50X325
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X325 replacement — usually within 7-8 hours.