This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X140S, 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 SU50X140S
The AirTAC SU32~50 Standard Cylinder SU50X140S is a double-acting profile-type standard cylinder with a Ø50mm bore and 140mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X140S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke140 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X140S
- 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 SU50X140S
The AirTAC SU50X140S is a discontinued double-acting profile-type cylinder with a 50mm bore and 140mm stroke. It delivers 982 N push force at 0.5 MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU50X140S, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
When upgrading, note that the SAU body uses current CMSG/DMSG/EMSG sensors, whereas this SU -S model relied on legacy CS1-B/DS1-B switches. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU50X140S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X140S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X140S |
| Bore size | Ø50 mm |
| Stroke | 140 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 SAU50X140S 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 SAU50X140S 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 SU50X140S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SU50X140S Is Used
Component Clamping
Secures medium workpieces during machining, utilizing the 982 N push force at 0.5 MPa for rigid holding without deflection.
Package Diverting
Actuates routing gates on 50mm bore lines, providing reliable 140mm stroke movements to redirect boxes at line speeds.
Replacing the Airtac SU32~50 Standard Cylinder SU50X140S with the SAU50X140S
To replace this SU50X140S, order the SAU50X140S. Confirm the 1/4" port, M16x1.5 rod thread, and PT/G/NPT thread type. Because this SKU has the -S magnet, you must switch from the old CS1-B/DS1-B switches to the SAU-compatible CMSG/DMSG/EMSG sensors. If sizing alternatives, the neighboring 40mm bore yields 628 N push at 0.5 MPa, while the 63mm bore offers 1559 N. The 140mm stroke is well under the 1200mm maximum, so no side-load guide is strictly necessary. Remember, a plain cylinder drifts without live air; the 21mm cushions only decelerate. For load holding on air loss, add an external rod lock or pilot-operated check valve. The SAU line also offers a SAUF variant with a built-in 4M solenoid valve, an option the SU series never had.
Replacement checklist
- ✓ Same bore / stroke → SAU50X140S
- ✓ 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 SU50X140S FAQ
Yes, the SU50X140S is discontinued. The direct replacement is the AirTAC SAU50X140S. It matches the 50mm bore, 140mm stroke, 1/4" port, and SC-series mounting. You simply order the SAU equivalent.
This cylinder 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, the legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the new SAU unit.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X140S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X140S replacement — usually within 7-8 hours.