This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X325S, 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 SU50X325S
The AirTAC SU32~50 Standard Cylinder SU50X325S 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 SAU50X325S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke325 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X325S
- 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 SU50X325S
The AirTAC SU50X325S is a discontinued double-acting profile-type cylinder with a 50mm bore and 325mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU50X325S, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 equivalent of the same bore. The -S magnet on this legacy unit worked with CS1-B/DS1-B switches, whereas the SAU upgrade uses current CMSG/DMSG/EMSG sensors and introduces a SAUF built-in-valve variant.
Airtac SU32~50 Standard Cylinder SU50X325S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X325S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X325S |
| 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 SAU50X325S 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 SAU50X325S 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 SU50X325S
| 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 SU50X325S Is Used
Package Diverting
Actuates routing gates on packaging lines where the 982 N push force at 0.5 MPa easily deflects moderate carton weights.
Clamping Fixtures
Secures workpieces during machining using the 825 N pull force, relying on external guides to manage the 325mm stroke without side-load wear.
Replacing the Airtac SU32~50 Standard Cylinder SU50X325S with the SAU50X325S
To replace this SU50X325S, order the SAU50X325S direct equivalent, confirming the 50mm bore, 325mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because this unit has the -S magnet, note the sensor family changes from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG on the SAU. For sizing alternatives, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. At 325mm stroke, use external guides to prevent rod bending and side-load wear. The cylinder will not hold a load without live air; the 21mm cushions only decelerate, so add an external rod lock or pilot-operated check valve for secure holding. The SAUF valve-integrated option can simplify cycling if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU50X325S
- ✓ 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 SU50X325S FAQ
Yes, the AirTAC SU50X325S is discontinued. The direct replacement is the SAU50X325S. It matches the 50mm bore, 325mm stroke, 982 N force, 1/4" port, and SC-series mounting. The main upgrade change is that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting cylinder operates at 30-800 mm/s with a pressure range of 0.15-1.0 MPa. It delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. It features a 1/4" port, M16x1.5 rod thread, and 21mm adjustable cushions at both ends.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X325S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X325S replacement — usually within 7-8 hours.