This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X25CA, 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 SU50X25CA
The AirTAC Airtac SU32~50 Standard Cylinder SU50X25CA is a double-acting profile-type standard cylinder with a Ø50mm bore and 25mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X25CA, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke25 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X25CA
- 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 SU50X25CA
The AirTAC SU50X25CA is a discontinued double-acting profile-type cylinder with a 50mm bore and 25mm stroke. Delivering 982N push force at 0.5MPa via a 1/4" port, its extruded aluminum body is more compact than a standard ISO 15552 unit. AirTAC replaced this EOL model with the SAU50X25CA, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series CA mounting.
When upgrading to the SAU, your CA mounting hardware and physical envelope stay identical. Note this specific SU lacks a magnet (-S), so it cannot accept position sensors; the SAU line also introduces the SAUF variant with a built-in 4M solenoid valve the SU never offered.
Airtac SU32~50 Standard Cylinder SU50X25CA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X25CA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X25CA |
| Bore size | Ø50 mm |
| Stroke | 25 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 SAU50X25CA 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 SAU50X25CA 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 SU50X25CA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SU50X25CA Is Used
Short-Stroke Clamping
Ideal for holding parts during machining, using its 982N push force at 0.5MPa to secure components firmly within a compact 25mm travel envelope.
Package Diverting
Provides rapid, short-throw actuation to push or sort light-to-medium packages on production lines, operating efficiently at speeds between 30-800mm/s.
Pallet Stop Gates
Functions as a compact pneumatic stop mechanism in material handling zones, utilizing the CA mount to handle dynamic stopping forces safely.
Replacing the Airtac SU32~50 Standard Cylinder SU50X25CA with the SAU50X25CA
To replace the discontinued SU50X25CA, order the SAU50X25CA. Verify your 1/4" port threads (PT, G, or NPT), the M16x1.5 rod-end connection, and your CA clevis mount. Because this SKU lacks a magnet, it cannot support legacy CS1-B/DS1-B switches; if you need sensing on the new SAU, order an -S version and migrate to current CMSG/DMSG/EMSG sensors. For sizing alternatives, dropping to a 40mm bore reduces push force to 628N at 0.5MPa, while stepping up to a 63mm bore increases it to 1559N. Remember, a standard cylinder drifts without live air—the 21mm adjustable cushions only decelerate at stroke end, so add an external rod lock or pilot-operated check valve for secure load holding. The 25mm stroke keeps the actuator highly rigid, minimizing rod-bending side-load risks.
Replacement checklist
- ✓ Same bore / stroke → SAU50X25CA
- ✓ 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 SU50X25CA FAQ
Yes, the AirTAC SU50X25CA is discontinued. The direct replacement is the SAU50X25CA. It shares the identical 50mm bore, 25mm stroke, 982N force, 1/4" port, and CA mounting interface, allowing a direct physical swap without modifying your assembly.
At 0.5MPa it provides 982N push and 825N pull force, increasing to 1374N push at 0.7MPa, with a theoretical max of 200kgf at 1.0MPa. The cylinder does not hold a load without live air; the 21mm cushions only decelerate the piston near stroke end. For load holding, install an external rod lock or pilot-operated check valve.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X25CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X25CA replacement — usually within 7-8 hours.