This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X350SFA, 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 SU50X350SFA
The AirTAC SU32~50 Standard Cylinder SU50X350SFA is a double-acting profile-type standard cylinder with a Ø50mm bore and 350mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X350SFA, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke350 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X350SFA
- 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 SU50X350SFA
The AirTAC SU50X350SFA is a discontinued double-acting profile-type cylinder with a 50 mm bore and 350 mm stroke. It delivers 982 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X350SFA, a direct alternative retaining the exact bore, stroke, force, port and SC-series FA mounting footprint.
The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore. Additionally, the SAU upgrade introduces a SAUF variant with a built-in 4M solenoid valve that the SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X350SFA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X350SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X350SFA |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAU50X350SFA 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 SAU50X350SFA 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 SU50X350SFA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 SU50X350SFA Is Used
Package Diverting
Pushes cartons off a sorting line using the 982 N push force at 0.5 MPa, with the 350 mm stroke reaching across a 300 mm belt.
Component Ejection
Ejects machined parts from a fixture, utilizing the adjustable 21 mm air cushions to decelerate the rod gently at stroke ends.
Replacing the Airtac SU32~50 Standard Cylinder SU50X350SFA with the SAU50X350SFA
To replace the SU50X350SFA, order the SAU50X350SFA. Verify the 50 mm bore, 350 mm stroke, 1/4" port (default PT thread), M16x1.5 rod thread, and the SC-series FA mounting accessory. Because this SKU includes a magnet (-S), note that your legacy CS1-B/DS1-B switches must change to the current CMSG/DMSG/EMSG sensor family on the SAU. If sizing alternatives, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore provides 1559 N. For the 350 mm stroke, use an external guide to prevent rod bending and side-load wear. A plain cylinder does not hold load without live air; the cushions only decelerate, so add an external rod lock or pilot-operated check valve for secure holding. The SAUF valve-integrated option is available if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X350SFA
- ✓ 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 SU50X350SFA FAQ
Yes, the SU50X350SFA is discontinued. The direct replacement is the SAU50X350SFA. It matches the 50 mm bore, 350 mm stroke, 982 N force, 1/4" port, and SC-series FA mounting. The body dimensions are identical.
The 50 mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this model has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires the newer CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X350SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X350SFA replacement — usually within 7-8 hours.