This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X285S, 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 SU50X285S
The AirTAC SU32~50 Standard Cylinder SU50X285S is a double-acting profile-type standard cylinder with a Ø50mm bore and 285mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X285S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke285 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X285S
- 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 SU50X285S
The AirTAC SU50X285S is a discontinued double-acting profile-type cylinder with a 50mm bore and 285mm stroke. Delivering 982 N push force at 0.5 MPa, it features a compact extruded aluminum body that is shorter than a standard ISO 15552 unit of the same size. AirTAC replaced this legacy unit with the SAU50X285S, a direct replacement retaining the exact bore, stroke, output force, 1/4 inch port, and SC-series mounting compatibility.
The -S magnet on this original SU worked with legacy CS1-B/DS1-B switches, but the SAU replacement upgrades to current CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X285S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X285S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X285S |
| Bore size | Ø50 mm |
| Stroke | 285 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 SAU50X285S 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 SAU50X285S 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 SU50X285S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×285 | 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 SU50X285S Is Used
Package Diverting
Actuates diverting arms on packaging lines, using the 982 N push force to redirect cartons at high speeds up to 800 mm/s.
Vertical Lifting
Hoists lightweight components up to 50 kg in storage racks, relying on the 285mm stroke to access lower shelving tiers.
Clamp Actuation
Secures workpieces in CNC fixtures, applying stable clamping pressure while maintaining a compact profile body.
Replacing the Airtac SU32~50 Standard Cylinder SU50X285S with the SAU50X285S
To replace the SU50X285S, order the SAU50X285S direct equivalent. Verify your 1/4 inch port thread (PT, G, or NPT) and SC-series mounting accessories (LB, FA, FB, CA, CB, TC) which carry over directly. Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must change to the SAU's CMSG/DMSG/EMSG sensor family. If your application requires load holding on air loss, note that a standard cylinder drifts without live air—the cushions only decelerate—so add an external rod lock or pilot-operated check valve. For higher force needs, the neighboring 63mm bore provides 1559 N push at 0.5 MPa. Since the 285mm stroke is substantial, ensure adequate guidance to prevent side-load and rod-bending issues.
Replacement checklist
- ✓ Same bore / stroke → SAU50X285S
- ✓ 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 SU50X285S FAQ
Yes, the AirTAC SU50X285S is discontinued and end-of-life. The direct replacement is the SAU50X285S. It shares the identical 50mm bore, 285mm stroke, output force, 1/4 inch port, and SC-series mounting, so it drops right into the same application.
The 50mm 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 model has the -S magnet, it used legacy CS1-B/DS1-B switches; the SAU50X285S replacement requires upgrading to the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X285S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X285S replacement — usually within 7-8 hours.