This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X105STC, 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 SU50X105STC
The AirTAC SU32~50 Standard Cylinder SU50X105STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 105mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X105STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke105 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X105STC
- 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 SU50X105STC
The AirTAC SU50X105STC is a discontinued double-acting profile-type standard cylinder with a 50mm bore and 105mm stroke. Because 105mm is not a factory standard stroke, it is built as a non-standard length. It delivers 982N push force at 0.5MPa through a 1/4" port. The direct replacement is the SAU50X105STC, matching the bore, stroke, force, port, and TC mounting exactly.
When upgrading to the SAU50X105STC, the extruded aluminum body and SC-series mounting remain identical, but the legacy CS1-B/DS1-B sensors for the -S magnet are replaced by current CMSG/DMSG/EMSG switches. The SAU line also adds a SAUF valve-integrated option the SU lacked.
Airtac SU32~50 Standard Cylinder SU50X105STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X105STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X105STC |
| Bore size | Ø50 mm |
| Stroke | 105 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 SAU50X105STC 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 SAU50X105STC 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 SU50X105STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×105 | 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 SU50X105STC Is Used
Package Diverting
Actuates a TC-mounted routing gate on a packaging line, using the 982N push force to deflect cartons at 30-800 mm/s.
Vertical Lift Stop
Raises a 50kg pallet stopper in a gravity rack, operating safely within the 589N working load limit at 0.5 MPa.
Clamp Actuation
Drives a short 105mm clamping stroke on an assembly fixture, reusing existing SC-series TC mounting brackets.
Replacing the Airtac SU32~50 Standard Cylinder SU50X105STC with the SAU50X105STC
To replace this discontinued SU with the SAU50X105STC, confirm the 50mm bore, 105mm non-standard stroke, 1/4" port, M16x1.5 rod thread, and TC mounting. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. Sizing both ways: a 40mm bore gives 628N push at 0.5MPa, while a 63mm bore gives 1559N. A plain cylinder does not hold load without live air; the cushion only decelerates, so use an external rod lock or pilot-operated check valve for held loads. If extending the 105mm stroke beyond 300mm, add a guide to prevent rod bending from side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU50X105STC
- ✓ 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 SU50X105STC FAQ
Yes, the SU50X105STC is discontinued. The direct replacement is the SAU50X105STC. It matches the 50mm bore, 105mm stroke, 982N force, 1/4" port, and TC mounting. You simply order the SAU equivalent.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. The -S magnet on this SU worked with CS1-B/DS1-B switches; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X105STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X105STC replacement — usually within 7-8 hours.