This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X250S, 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 SU50X250S
The AirTAC SU32~50 Standard Cylinder SU50X250S is a double-acting profile-type standard cylinder with a Ø50mm bore and 250mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X250S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X250S
- 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 SU50X250S
The AirTAC SU50X250S is a discontinued double-acting profile-type cylinder. It delivers 982 N push force at 0.5 MPa through a 50 mm bore and 250 mm stroke. The direct replacement is the SAU50X250S, which matches the original 1/4" port, M16x1.5 rod thread, output force and SC-series mounting.
Because this SU features a piston magnet (-S), it originally used legacy CS1-B/DS1-B switches; upgrading to the SAU requires the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU lacked.
Airtac SU32~50 Standard Cylinder SU50X250S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X250S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X250S |
| Bore size | Ø50 mm |
| Stroke | 250 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 SAU50X250S 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 SAU50X250S 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 SU50X250S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 SU50X250S Is Used
Clamp Actuation
Drives mid-force clamping fixtures for machining, taking advantage of the 250 mm stroke to accommodate varying part widths.
Replacing the Airtac SU32~50 Standard Cylinder SU50X250S with the SAU50X250S
To replace this discontinued SU50X250S, order the SAU50X250S. Verify your 1/4" port thread (PT, G or NPT) and SC-series mounting (LB, FA, FB, CA, CB, TC). Because the -S magnet is present, prepare to swap legacy CS1-B/DS1-B switches for SAU-compatible CMSG/DMSG/EMSG sensors. For loads needing 1374 N at 0.7 MPa, the 50 mm bore is ideal, but if you need less force, a 40 mm bore offers 628 N. Remember that a plain cylinder drifts without live air; use an external rod lock or pilot-operated check valve for secure load holding. With a 250 mm stroke, ensure adequate guide support to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same bore / stroke → SAU50X250S
- ✓ 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 SU50X250S FAQ
Yes, the AirTAC SU50X250S is discontinued. The direct replacement is the SAU50X250S. It shares the same 50 mm bore, 250 mm stroke, 982 N force at 0.5 MPa, 1/4" port, and SC-series mounting. You simply order the SAU equivalent.
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 an -S model with a magnet, the original legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the new SAU series.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X250S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X250S replacement — usually within 7-8 hours.