This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X80STC, 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 SU50X80STC
The AirTAC Airtac SU32~50 Standard Cylinder SU50X80STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 80mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X80STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X80STC
- 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 SU50X80STC
The AirTAC SU50X80STC is a discontinued double-acting profile-type cylinder with an 80 mm stroke and 50 mm bore. It delivers 982 N push and 825 N pull at 0.5 MPa. AirTAC replaced this unit with the SAU50X80STC, a direct replacement retaining the exact extruded aluminum body, 1/4" port, M16x1.5 rod thread, and SC-series TC mounting interface.
This compact profile body is shorter than an ISO 15552 unit of the same bore. If you used the -S magnet on this legacy model, note the SAU replacement upgrades the sensor groove to accept current CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series lacked.
Airtac SU32~50 Standard Cylinder SU50X80STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X80STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X80STC |
| Bore size | Ø50 mm |
| Stroke | 80 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 SAU50X80STC 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 SAU50X80STC 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 SU50X80STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×80 | 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 SU50X80STC Is Used
Clamp and Release Stations
Ideal for mid-force 982 N clamping of machined parts on a fixture plate, utilizing the 80 mm stroke to clear the workpiece for robotic loading.
Package Diverting
Drives a short-stroke diverter arm on a packaging line, where the TC mount provides rigid pivot support and the compact profile saves space.
Replacing the Airtac SU32~50 Standard Cylinder SU50X80STC with the SAU50X80STC
To replace the SU50X80STC, order the SAU50X80STC. Verify your TC mounting hardware (an SC-series accessory), 1/4" port threads (PT/G/NPT), and the M16x1.5 rod end. Because this SKU includes the -S magnet, you must change your position sensing: the SAU uses CMSG/DMSG/EMSG switches, while this discontinued unit used CS1-B/DS1-B. For force context, the 50 mm bore yields 982 N push at 0.5 MPa; if you need less force, step down to a 40 mm bore (628 N), or step up to a 63 mm bore (1559 N) for heavier loads. A plain double-acting cylinder does not hold a load if air pressure drops—the cushion only decelerates near stroke end. For suspended loads, install an external rod lock or pilot-operated check valve. If you need faster local actuation, explore the SAUF valve-integrated option.
Replacement checklist
- ✓ Same bore / stroke → SAU50X80STC
- ✓ 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 SU50X80STC FAQ
Yes, the SU50X80STC is discontinued. The direct replacement is the AirTAC SAU50X80STC. It matches the 50 mm bore, 80 mm stroke, 1/4" port, output force, and SC-series TC mounting. The only change is that if your SU model had the -S magnet for legacy CS1-B/DS1-B switches, the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
The 50 mm bore features a 1/4" air port and a 20 mm rod with an M16x1.5 thread. At 0.5 MPa it provides 982 N push and 825 N pull force. This increases to 1374 N push at 0.7 MPa, 1767 N at 0.9 MPa, with a theoretical maximum of 200 kgf at 1.0 MPa.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X80STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X80STC replacement — usually within 7-8 hours.