This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X625S, 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 SU50X625S
The AirTAC SU32~50 Standard Cylinder SU50X625S is a double-acting profile-type standard cylinder with a Ø50mm bore and 625mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X625S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke625 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X625S
- 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 SU50X625S
The AirTAC SU50X625S is a discontinued double-acting profile-type cylinder with a 50mm bore and 625mm stroke. Delivering 982 N of push force at 0.5 MPa, it features a 1/4" port and an extruded aluminum body that is more compact than an ISO 15552 unit of the same size. AirTAC replaced this legacy unit with the SAU50X625S, a direct replacement retaining the exact bore, stroke, output force, porting, and SC-series mounting compatibility.
When upgrading to the SAU50X625S, the physical envelope and 20mm piston rod stay identical, but the sensor family changes: this SU model's -S magnet works with legacy CS1-B/DS1-B switches, while the SAU requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
Airtac SU32~50 Standard Cylinder SU50X625S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X625S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X625S |
| Bore size | Ø50 mm |
| Stroke | 625 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 SAU50X625S 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 SAU50X625S 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 SU50X625S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×625 | 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 SU50X625S Is Used
Carton Diverting
Provides the 982 N push force needed to deflect heavy packaged goods across a transfer section without stalling.
Vertical Lowering
Manages controlled descent of 50 kg payloads using adjustable end cushions, requiring a check valve to hold position.
Pallet Loading
Drives product pushers or alignment flaps at packaging stations, utilizing the 625mm stroke for deep travel.
Replacing the Airtac SU32~50 Standard Cylinder SU50X625S with the SAU50X625S
To replace the SU50X625S, order the SAU50X625S and verify your 1/4" port threads (PT, G, or NPT) alongside your SC-series mounting brackets (LB, FA, FB, CA, CB, or TC). Because this is a -S magnet model, you must retire the old CS1-B/DS1-B switches and upgrade to CMSG, DMSG, or EMSG sensors. If your application needs integrated directional control, consider the SAUF50X625S variant with its built-in valve. For force verification, the 50mm bore yields 982 N push and 825 N pull at 0.5 MPa; if you need less force, a 40mm bore provides 628 N push, while a 63mm bore offers 1559 N. A plain cylinder will not hold a load without live air—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for fail-safe holding. Finally, at 625mm, this long stroke demands an external guide to prevent rod bending and premature seal wear from side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU50X625S
- ✓ 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 SU50X625S FAQ
Yes, the AirTAC SU50X625S is discontinued and end-of-life. The direct replacement is the SAU50X625S. It shares the identical 50mm bore, 625mm stroke, 1/4" port, output force, and SC-series mounting hardware, so it drops straight into the same application.
The 50mm bore 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. Because this is a -S magnet model, it originally used legacy CS1-B/DS1-B switches; the SAU50X625S replacement requires upgrading to current CMSG, DMSG, or EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X625S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X625S replacement — usually within 7-8 hours.