This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X370S, 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 SU50X370S
The AirTAC SU32~50 Standard Cylinder SU50X370S is a double-acting profile-type standard cylinder with a Ø50mm bore and 370mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X370S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke370 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X370S
- 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 SU50X370S
The AirTAC SU50X370S is a discontinued double-acting profile-type cylinder with a 50mm bore and 370mm stroke. Delivering 982 N push force at 0.5 MPa, its direct replacement is the SAU50X370S. The SAU maintains the same extruded aluminium body, 1/4" port, M16x1.5 rod thread and SC-series mounting, meaning no mechanical changes are needed. This compact profile is shorter than an ISO 15552 cylinder of the same bore.
Because this is an -S magnet model, it originally used CS1-B/DS1-B switches; the SAU replacement upgrades this to CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X370S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X370S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X370S |
| Bore size | Ø50 mm |
| Stroke | 370 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 SAU50X370S 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 SAU50X370S 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 SU50X370S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×370 | 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 SU50X370S Is Used
Package Diversion
Pushes medium-weight cartons off a sorting line using a 50mm bore, absorbing end-of-stroke impact with the 21mm adjustable air cushion.
Component Ejection
Ejects machined parts from a fixture, taking advantage of the 982 N thrust at 0.5 MPa and compact profile body.
Replacing the Airtac SU32~50 Standard Cylinder SU50X370S with the SAU50X370S
To replace this SU50X370S, order the SAU50X370S. Verify your 1/4" port, M16x1.5 rod thread, PT/G/NPT thread standard, and SC-series mounting (LB/FA/FB/CA/CB) to ensure a direct fit. The -S suffix means a magnet is present; note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the new SAU. If you need integrated air control, consider the SAUF valve-integrated variant. If sizing alternatives, a 40mm bore provides 628 N push at 0.5 MPa, while a 63mm bore yields 1559 N. With a 370mm stroke, prevent rod bending by using an external guide to absorb side loads. For load holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate.
Replacement checklist
- ✓ Same bore / stroke → SAU50X370S
- ✓ 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 SU50X370S FAQ
Yes, the SU50X370S is discontinued. The direct replacement is the AirTAC SAU50X370S. It shares the exact same 50mm bore, 370mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it fits the same application. You simply order the SAU50X370S.
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 your SU has an -S magnet, note that the legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X370S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X370S replacement — usually within 7-8 hours.