This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X375S, 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 SU50X375S
The AirTAC SU32~50 Standard Cylinder SU50X375S is a double-acting profile-type standard cylinder with a Ø50mm bore and 375mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X375S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke375 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X375S
- 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 SU50X375S
The AirTAC SU50X375S is a discontinued double-acting profile-type cylinder with a 50mm bore and 375mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU50X375S, a direct upgrade retaining the exact body dimensions, M16x1.5 rod thread, force output, and SC-series mounting footprint.
The SAU replacement modernizes the sensor groove: your existing -S magnet worked with legacy CS1-B/DS1-B switches, but the SAU requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU lacked. Note that standard seals handle -20 to +70 C, but a Viton H option extends this to 150 C.
Airtac SU32~50 Standard Cylinder SU50X375S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X375S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X375S |
| Bore size | Ø50 mm |
| Stroke | 375 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 SAU50X375S 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 SAU50X375S 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 SU50X375S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×375 | 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 SU50X375S Is Used
Package Diverting
Actuates routing gates on 50kg capacity conveyor lines, utilizing the 375mm stroke to shift parcels between sorting lanes smoothly.
Clamp Actuation
Drives mid-force clamping jaws on automated assembly stations, delivering 982 N of push force at 0.5 MPa to secure workpieces.
Replacing the Airtac SU32~50 Standard Cylinder SU50X375S with the SAU50X375S
To replace the SU50X375S, order the SAU50X375S 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 SKU includes the -S magnet, you must upgrade your position sensing from the old CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG family. If you need self-contained flow control, explore the SAUF valve-integrated variant. For loads requiring 1767 N push at 0.9 MPa, this 50mm bore is ideal; if you need less force, step down to a 40mm bore (628 N push at 0.5 MPa). At 375mm stroke, prevent rod bending by using an external guide to absorb side loads. Finally, remember this cylinder will not hold a load without live air—add an external rod lock or pilot-operated check valve for fail-safe holding, as the air cushions only decelerate at stroke ends.
Replacement checklist
- ✓ Same bore / stroke → SAU50X375S
- ✓ 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 SU50X375S FAQ
Yes, the SU50X375S is discontinued. The direct replacement is the AirTAC SAU50X375S. It matches the original 50mm bore, 375mm stroke, 982 N push force at 0.5 MPa, 1/4" port, and SC-series mounting accessories, so no mechanical redesign is required.
This double-acting cylinder provides 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 an -S model with a piston magnet, it originally used CS1-B/DS1-B switches; when upgrading to the SAU replacement, you must switch to CMSG, DMSG, or EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X375S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X375S replacement — usually within 7-8 hours.