This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X140, 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 SU50X140
The AirTAC SU32~50 Standard Cylinder SU50X140 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 SAU50X140, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke140 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X140
- 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 SU50X140
The AirTAC SU50X140 is a discontinued double-acting profile-type cylinder with a 50mm bore and 140mm stroke. Delivering 982 N push force at 0.5 MPa, it features an extruded aluminum barrel and adjustable air cushions at both ends. AirTAC replaced this legacy unit with the SAU50X140, a direct upgrade retaining the exact bore, stroke, output force, 1/4" port, and SC-series mounting compatibility.
Because this specific SKU lacks the -S magnet option, it cannot accept a position sensor. The SAU50X140 successor also omits the magnet but introduces support for modern CMSG/DMSG/EMSG switches on its -S variants, replacing the obsolete CS1-B/DS1-B sensors. The SAU family also adds a SAUF variant with a built-in 4M solenoid valve, a feature the original SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X140 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X140 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X140 |
| 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 SAU50X140 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 SAU50X140 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 SU50X140
| 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 SU50X140 Is Used
Package Diverting
Actuates routing gates on 50mm belt conveyors, utilizing the 140mm stroke to redirect parcels weighing up to 50 kg safely.
Clamping Fixtures
Secures mild steel workpieces in CNC milling stations, applying 589 N of reliable clamping force under standard 0.5 MPa shop air.
Pallet Stops
Functions as a pneumatic stop on low-profile roller conveyors, holding accumulated goods steady during automated wrapping cycles.
Replacing the Airtac SU32~50 Standard Cylinder SU50X140 with the SAU50X140
To replace this SU50X140, order the SAU50X140. Verify your 1/4" port thread (PT, G, or NPT) and M16x1.5 rod-end connection. Since this non-magnetic SKU cannot hold a sensor, if you require position detection you must upgrade to an SAU50X140S and switch to the current CMSG/DMSG/EMSG sensor family. When sizing, the 50mm bore yields 982 N push and 825 N pull at 0.5 MPa; if you need less force, step down to a 40mm bore (628 N push), or step up to a 63mm bore (1559 N push) for heavier loads. Note that a standard cylinder drifts without live air—the cushion only decelerates at stroke end—so fit an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU50X140
- ✓ 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 SU50X140 FAQ
Yes, the SU50X140 is discontinued. The direct replacement is the AirTAC SAU50X140. It matches the 50mm bore, 140mm stroke, 1/4" port, and SC-series mounting hardware, so it fits the same envelope without mechanical modifications.
At 0.5 MPa it provides 982 N push and 825 N pull force, rising to 1374 N push at 0.7 MPa, with a theoretical maximum of 200 kgf at 1.0 MPa. This specific non-magnetic SKU cannot accept a sensor; the -S variant of the SAU50X140 replacement uses current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Request a Quote for the SAU50X140
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X140 replacement — usually within 7-8 hours.