This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X50, 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 SU50X50
The AirTAC Airtac SU32~50 Standard Cylinder SU50X50 is a double-acting profile-type standard cylinder with a Ø50mm bore and 50mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X50, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke50 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X50
- 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 SU50X50
The AirTAC SU50X50 is a discontinued double-acting profile-type cylinder. It delivers 982 N push force at 0.5 MPa through a 50 mm bore and 50 mm stroke. AirTAC replaced this unit with the SAU50X50, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, output force, and SC-series mounting.
Because this specific SKU lacks a magnet (-S), it cannot accept a position sensor. The SAU replacement also omits sensing unless ordered with -S, but if you do upgrade to a magnet model, note that the legacy CS1-B/DS1-B switches are superseded by modern CMSG/DMSG/EMSG sensors.
Airtac SU32~50 Standard Cylinder SU50X50 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X50 |
| Bore size | Ø50 mm |
| Stroke | 50 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 SAU50X50 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 SAU50X50 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 SU50X50
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×50 | 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 SU50X50 Is Used
Compact Part Ejection
Fits tight machine cells to push 50 kg finished parts out of a CNC envelope using its 982 N push force at 0.5 MPa.
Package Diverting
Short 50 mm stroke actuates a diverting gate on a packaging line, handling moderate side loads without requiring ISO 15552 space.
Pallet Stop Arm
Acts as a pneumatic stop for lightweight pallets on a roller conveyor, benefiting from the adjustable 21 mm cushions at both ends.
Replacing the Airtac SU32~50 Standard Cylinder SU50X50 with the SAU50X50
To replace your SU50X50, order the SAU50X50 direct equivalent, verifying your 1/4" port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, TC). If you need position sensing, you must specify an -S magnet on the SAU and migrate to CMSG/DMSG/EMSG switches, as this non-magnetic SU cannot take a sensor. For higher force needs, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa; for lighter loads, the 40 mm bore provides 628 N. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for secure load holding. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, a feature the SU line never offered.
Replacement checklist
- ✓ Same bore / stroke → SAU50X50
- ✓ 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 SU50X50 FAQ
Yes, the SU50X50 is discontinued. The direct replacement is the AirTAC SAU50X50. It shares the identical 50 mm bore, 50 mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting, so it drops straight into your existing application.
The 50 mm bore uses a 1/4" air port. At 0.5 MPa it provides 982 N push and 825 N pull force. At 0.7 MPa the push increases to 1374 N, and the theoretical maximum force is 200 kgf at 1.0 MPa. It operates at speeds of 30-800 mm/s.
Request a Quote for the SAU50X50
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X50 replacement — usually within 7-8 hours.