This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X15S, 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 SU50X15S
The AirTAC SU32~50 Standard Cylinder SU50X15S is a double-acting profile-type standard cylinder with a Ø50mm bore and 15mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X15S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke15 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X15S
- 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 SU50X15S
The AirTAC SU50X15S is a discontinued double-acting profile-type cylinder with a 50mm bore and 15mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU50X15S, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
When migrating to the SAU50X15S, the extruded aluminum body and adjustable cushions remain identical, but the legacy CS1-B/DS1-B switches are replaced by modern CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU lacked.
Airtac SU32~50 Standard Cylinder SU50X15S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X15S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X15S |
| Bore size | Ø50 mm |
| Stroke | 15 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 SAU50X15S 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 SAU50X15S 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 SU50X15S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×15 | 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 SU50X15S Is Used
Short-Stroke Clamping
Ideal for holding parts in a machining fixture, utilizing the 982N push force within a tight 15mm travel envelope.
Component Ejection
Provides a fast 30-800mm/s ejection pulse for small stamped parts, with adjustable cushions absorbing end-of-stroke impact.
Diverting Gate Actuation
Drives a short pneumatic flap on a conveyor system, where the compact profile body saves space compared to standard ISO cylinders.
Replacing the Airtac SU32~50 Standard Cylinder SU50X15S with the SAU50X15S
To replace the SU50X15S, order the SAU50X15S and confirm the 1/4" port, M16x1.5 rod thread, and SC-series mounting accessories (LB/FA/FB/CA/CB) which carry over directly. Because this unit has an -S magnet, you must update your sensing to CMSG/DMSG/EMSG switches as the legacy CS1-B/DS1-B sensors are obsolete. Sizing both ways: dropping to a 40mm bore reduces push force to 628N, while stepping up to a 63mm bore increases it to 1559N at 0.5MPa. Note that a plain cylinder drifts without live air; the cushions only decelerate, so use an external rod lock or pilot-operated check valve for load holding. The short 15mm stroke requires no side-load concerns.
Replacement checklist
- ✓ Same bore / stroke → SAU50X15S
- ✓ 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 SU50X15S FAQ
Yes, the SU50X15S is end-of-life. The direct replacement is the AirTAC SAU50X15S. It matches the 50mm bore, 15mm stroke, 1/4" port, 982N force, and SC-series mounting, but requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
The 50mm bore uses a 1/8" port. At 0.5MPa it provides 982N push and 825N pull force. This rises to 1374N push at 0.7MPa, 1767N push at 0.9MPa, and a theoretical maximum of 200kgf at 1.0MPa.
Request a Quote for the SAU50X15S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X15S replacement — usually within 7-8 hours.