This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X100SFA, 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 SU50X100SFA
The AirTAC SU32~50 Standard Cylinder SU50X100SFA is a double-acting profile-type standard cylinder with a Ø50mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X100SFA, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X100SFA
- 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 SU50X100SFA
The AirTAC SU50X100SFA is a discontinued double-acting profile-type cylinder with a 50mm bore and 100mm stroke, delivering 982N push force at 0.5MPa. It features an extruded aluminum barrel, a 1/4" port, and an FA mounting interface. AirTAC replaced this unit with the SAU50X100SFA, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting accessories.
When upgrading, note that the SAU body uses current CMSG/DMSG/EMSG sensors, whereas this legacy SU model relies on older CS1-B/DS1-B switches. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU32~50 Standard Cylinder SU50X100SFA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X100SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X100SFA |
| Bore size | Ø50 mm |
| Stroke | 100 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 SAU50X100SFA 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 SAU50X100SFA 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 SU50X100SFA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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 SU50X100SFA Is Used
Clamping Fixtures
Secures mid-weight machined components during milling or drilling, utilizing the 982N push force at 0.5MPa for rigid holding.
Package Diverting
Actuates routing gates on packaging lines, where the 100mm stroke provides sufficient travel to redirect boxes efficiently.
Replacing the Airtac SU32~50 Standard Cylinder SU50X100SFA with the SAU50X100SFA
To replace the SU50X100SFA, order the SAU50X100SFA, confirming the 50mm bore, 100mm stroke, 1/4" port, M16x1.5 rod thread, and FA foot mount. Because this SKU includes a magnet (-S), you must switch from the legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family on the new cylinder. If you need to adjust force, the neighboring 40mm bore yields 628N push at 0.5MPa, while the 63mm bore provides 1559N; alternatively, simply changing the pressure to 0.7MPa increases this 50mm bore's push to 1374N. A plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for secure load holding. If your application ever requires integrated valve control, explore the SAUF built-in-valve variant.
Replacement checklist
- ✓ Same bore / stroke → SAU50X100SFA
- ✓ 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 SU50X100SFA FAQ
Yes, the SU50X100SFA is discontinued. The direct replacement is the SAU50X100SFA, which matches the 50mm bore, 100mm stroke, 982N force, 1/4" port, and FA mounting interface.
At 0.5MPa it provides 982N push and 825N pull; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. Because this model has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors instead.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X100SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X100SFA replacement — usually within 7-8 hours.