This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X115, 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 SU50X115
The AirTAC Airtac SU32~50 Standard Cylinder SU50X115 is a double-acting profile-type standard cylinder with a Ø50mm bore and 115mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X115, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke115 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X115
- 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 SU50X115
The AirTAC SU50X115 is a discontinued double-acting profile-type cylinder featuring a 50mm bore, 115mm stroke, and an extruded aluminum barrel. It delivers 982 N push force at 0.5 MPa via a 1/4" port, offering a shorter, more compact body than an ISO 15552 cylinder of the same bore while sharing AirTAC SC-series mounting accessories.
As this unit is end-of-life, the direct replacement is the SAU50X115, preserving the exact bore, stroke, output force, port size, and mounting footprint. Note that this non-magnetic SKU cannot accept a sensor, and while the SAU upgrade retains all physical dimensions, it updates sensing to the modern CMSG/DMSG/EMSG families and introduces the SAUF built-in-valve option the SU line lacked.
Airtac SU32~50 Standard Cylinder SU50X115 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X115 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X115 |
| Bore size | Ø50 mm |
| Stroke | 115 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 SAU50X115 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 SAU50X115 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 SU50X115
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×115 | 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 SU50X115 Is Used
Mid-Tonnage Clamping
Secures workpieces in CNC machining fixtures, utilizing the 982 N push force at 0.5 MPa to hold components rigidly against cutting forces.
Package Diverting
Pushes cartons off a main conveyor line onto secondary packing lanes, where the 115mm stroke provides the exact reach needed for lane transitions.
Vertical Lift Stops
Acts as a pneumatic stop gate in gravity roller conveyors, safely halting items up to 50 kg before incorporating a pilot-operated check valve to prevent drift.
Replacing the Airtac SU32~50 Standard Cylinder SU50X115 with the SAU50X115
To replace the discontinued SU50X115, order the SAU50X115, confirming the 50mm bore, 115mm stroke, 1/4" port, M16x1.5 rod thread, and PT/G/NPT thread choice. Because this is a non-magnetic SKU, it cannot accept a sensor; if you need position detection on the SAU, you must select the -S option and use CMSG/DMSG/EMSG switches. For 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. Remember that a plain cylinder does not hold load without live air—the 21mm adjustable cushions only decelerate near stroke end—so add an external rod lock or pilot-operated check valve for secure vertical holding.
Replacement checklist
- ✓ Same bore / stroke → SAU50X115
- ✓ 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 SU50X115 FAQ
Yes, the SU50X115 is discontinued. The direct replacement is the AirTAC SAU50X115. It matches the 50mm bore, 115mm stroke, 982 N force, 1/4" port, and SC-series mounting, so it fits the same application without mechanical modifications.
The 50mm bore delivers 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 specific SKU lacks a magnet, it cannot accept a sensor; the SAU replacement with the -S option uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU50X115
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X115 replacement — usually within 7-8 hours.