This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X280S, 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 SU50X280S
The AirTAC Airtac SU32~50 Standard Cylinder SU50X280S is a double-acting profile-type standard cylinder with a Ø50mm bore and 280mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X280S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke280 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X280S
- 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 SU50X280S
The AirTAC SU50X280S is a discontinued double-acting profile-type cylinder with a 50mm bore and 280mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it delivers 982 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU50X280S, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
Because this SKU includes the -S magnet, it originally used legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The new SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU series lacked.
Airtac SU32~50 Standard Cylinder SU50X280S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X280S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X280S |
| Bore size | Ø50 mm |
| Stroke | 280 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 SAU50X280S 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 SAU50X280S 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 SU50X280S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×280 | 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 SU50X280S Is Used
Package Diverting
Pushes medium-weight cartons off a sorting line with a safe 589 N working load, utilizing the 280mm stroke to clear adjacent lanes.
Pallet Positioning
Indexes empty pallets into a wrapping station, where the compact profile body saves space compared to standard ISO cylinders.
Clamp Actuation
Secures aluminum extrusions during machining operations, relying on adjustable 21mm cushions to decelerate the 50mm bore at stroke ends.
Replacing the Airtac SU32~50 Standard Cylinder SU50X280S with the SAU50X280S
To replace the SU50X280S, order the SAU50X280S direct equivalent, confirming the 50mm bore, 280mm stroke, M16x1.5 rod thread, and 1/4" port (default PT, with G or NPT available). Since this is an -S model, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. For sizing alternatives, a 40mm bore provides 628 N push at 0.5 MPa, while a 63mm bore offers 1559 N. At 280mm stroke, ensure adequate guidance to prevent rod bending and side-load wear. The cylinder will not hold a load without live air—use an external rod lock or pilot-operated check valve for fail-safe holding. If you need integrated flow control, explore the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU50X280S
- ✓ 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 SU50X280S FAQ
Yes, the SU50X280S is discontinued. The direct replacement is the AirTAC SAU50X280S. It shares the same 50mm bore, 280mm stroke, 1/4" port, output force, and SC-series mounting accessories. The main upgrade is that the SAU uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 50mm bore features a 1/4" air port and a 20mm piston rod. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. The cylinder operates at speeds between 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X280S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X280S replacement — usually within 7-8 hours.