This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X540S, 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 SU50X540S
The AirTAC SU32~50 Standard Cylinder SU50X540S is a double-acting profile-type standard cylinder with a Ø50mm bore and 540mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X540S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke540 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X540S
- 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 SU50X540S
The AirTAC SU50X540S is a discontinued double-acting profile-type cylinder with a 50mm bore and 540mm stroke. Delivering 982 N push at 0.5 MPa, its direct replacement is the SAU50X540S, retaining the 1/4" port, M16x1.5 rod thread, and SC-series mounting. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
Because this is a -S magnet model, it used legacy CS1-B/DS1-B switches; upgrading to the SAU requires current CMSG/DMSG/EMSG sensors. The SAU line also adds a SAUF built-in-valve variant the SU lacked. Note that air cushions only decelerate; use an external rod lock to hold loads.
Airtac SU32~50 Standard Cylinder SU50X540S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X540S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X540S |
| Bore size | Ø50 mm |
| Stroke | 540 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 SAU50X540S 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 SAU50X540S 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 SU50X540S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×540 | 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 SU50X540S Is Used
Carton Diverting
Pushes packages at 30-800 mm/s on packaging lines, using the 982 N push force to redirect heavy cardboard cartons smoothly.
Pallet Handling
Indexes pallets in compact cells where the extruded profile body saves space compared to standard ISO cylinders of the same bore.
Replacing the Airtac SU32~50 Standard Cylinder SU50X540S with the SAU50X540S
To replace this discontinued SU50X540S, order the SAU50X540S direct equivalent, confirming the 50mm bore, 540mm stroke, 1/4" port (PT/G/NPT), and SC-series mounting (LB/FA/FB/CA/CB). The -S magnet means you must switch from legacy CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensors. For load sizing, a 40mm bore yields 628 N push @0.5 MPa, while a 63mm bore yields 1559 N; this 50mm bore provides 982 N push and 825 N pull @0.5 MPa, peaking at 200 kgf @1.0 MPa. At 540mm, this long stroke risks rod bending under side loads, so use external guides to prevent premature seal wear. The cylinder will not hold a load without live air, so add a pilot-operated check valve or rod lock if drift is unacceptable. If valve integration is needed, explore the SAUF variant.
Replacement checklist
- ✓ Same bore / stroke → SAU50X540S
- ✓ 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 SU50X540S FAQ
Yes, the AirTAC SU50X540S is discontinued. The direct replacement is the SAU50X540S. It matches the 50mm bore, 540mm stroke, 982 N force, 1/4" port, and SC-series mounting. You just order the SAU equivalent.
The SAU50X540S matches the SU forces: 982 N push and 825 N pull @0.5 MPa, 1374 N push @0.7 MPa, and 200 kgf max @1.0 MPa. Because the SU50X540S has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X540S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X540S replacement — usually within 7-8 hours.