This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X115S, 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 SU50X115S
The AirTAC SU32~50 Standard Cylinder SU50X115S 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 SAU50X115S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke115 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X115S
- 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 SU50X115S
The AirTAC SU50X115S is a discontinued double-acting profile-type cylinder with a 50mm bore and 115mm stroke. AirTAC replaced this end-of-life unit with the SAU50X115S, a direct alternative retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B or DS1-B reed switches; upgrading to the SAU requires migrating to current CMSG, DMSG, or EMSG electronic sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve for self-switching, an option the SU line never offered. The extruded aluminum profile remains shorter than an ISO 15552 cylinder of the same bore, while the adjustable 21mm air cushions at both ends merely decelerate the piston without holding the load.
Airtac SU32~50 Standard Cylinder SU50X115S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X115S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X115S |
| 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 SAU50X115S 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 SAU50X115S 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 SU50X115S
| 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 SU50X115S Is Used
Mid-Tonnage Part Clamping
Secures workpieces during machining with 982 N of clamping force at 0.5 MPa, providing stable holding without over-stressing lighter fixtures.
Package Diverting
Actuates routing gates on packaging lines where a compact 115mm stroke and 50 kg vertical lift capacity quickly redirect cartons between belts.
Vertical Lift Stops
Raises lightweight pallet stops or product elevators, utilizing the extruded profile body to fit neatly within tight conveyor framework.
Replacing the Airtac SU32~50 Standard Cylinder SU50X115S with the SAU50X115S
To replace the SU50X115S, order the SAU50X115S and verify your 1/4" port threads (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, or TC). Since this is an -S magnet model, plan to swap your old CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors. For sizing, the 50mm bore provides 982 N push at 0.5 MPa; if you need less force, step down to a 40mm bore (628 N), or move up to a 63mm bore (1559 N) for heavier loads. Note that a plain cylinder drifts on air loss—the cushions only decelerate, so add an external rod lock or pilot-operated check valve for suspended loads. At 115mm stroke, rod bending is minimal, but always guide the load to prevent side-loading.
Replacement checklist
- ✓ Same bore / stroke → SAU50X115S
- ✓ 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 SU50X115S FAQ
Yes, the SU50X115S is discontinued. The direct replacement is the AirTAC SAU50X115S, which matches the 50mm bore, 115mm stroke, 1/4" port, output force, and SC-series mounting accessories.
At 0.5 MPa it pushes 982 N and pulls 825 N; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. The -S magnet on this legacy SU works with CS1-B/DS1-B switches, but the SAU replacement requires CMSG, DMSG, or EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X115S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X115S replacement — usually within 7-8 hours.