This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X745S, 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 SU50X745S
The AirTAC SU32~50 Standard Cylinder SU50X745S is a double-acting profile-type standard cylinder with a Ø50mm bore and 745mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X745S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke745 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X745S
- 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 SU50X745S
The AirTAC SU50X745S is a discontinued double-acting profile-type cylinder with a 50mm bore and 745mm stroke. Delivering 982 N push at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same size. AirTAC replaced this unit with the SAU50X745S, a direct replacement retaining the exact bore, stroke, force, 1/4" port, and SC-series mounting.
The -S magnet on this legacy model works with CS1-B/DS1-B switches, whereas the SAU upgrade uses current CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF variant with a built-in 4M solenoid valve, an option the SU line never had.
Airtac SU32~50 Standard Cylinder SU50X745S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X745S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X745S |
| Bore size | Ø50 mm |
| Stroke | 745 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 SAU50X745S 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 SAU50X745S 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 SU50X745S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×745 | 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 SU50X745S Is Used
Long-Stroke Diverting
Pushes packages across a sorting line using the 745 mm stroke, relying on the 982 N push force at 0.5 MPa to handle heavy cartons reliably.
Material Ejection
Ejects molded parts from a press area, utilizing the compact profile body to save space while providing full 745 mm extension.
Replacing the Airtac SU32~50 Standard Cylinder SU50X745S with the SAU50X745S
To replace the SU50X745S, order the SAU50X745S. Verify your 1/4" port thread (PT, G, or NPT), M16x1.5 rod-end connection, and SC-series mounting hardware (LB/FA/FB/CA/CB) — all remain identical. Because this unit has a -S magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the new SAU cylinder. A plain cylinder does not hold load without live air; the 21 mm adjustable cushions only decelerate, so add an external rod lock or pilot-operated check valve for vertical holding. With a 745 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage. If you need less force, step down to a 40 mm bore (628 N push @0.5 MPa); if you need more, step up to a 63 mm bore (1559 N push @0.5 MPa). The SAUF valve-integrated option is available if you want self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X745S
- ✓ 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 SU50X745S FAQ
Yes, the SU50X745S is discontinued. The direct replacement is the AirTAC SAU50X745S. It matches the 50 mm bore, 745 mm stroke, output force, 1/4" port, and SC-series mounting. You can swap it directly without changing your mechanical setup.
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 is a -S model with a magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X745S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X745S replacement — usually within 7-8 hours.