This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X720STC, 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 SU50X720STC
The AirTAC Airtac SU32~50 Standard Cylinder SU50X720STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 720mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X720STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke720 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X720STC
- 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 SU50X720STC
The AirTAC SU50X720STC is a discontinued double-acting profile-type cylinder with a 50mm bore and 720mm stroke. Delivering 982 N push force at 0.5 MPa, it features a 1/4" port and TC mounting. AirTAC replaced this legacy unit with the SAU50X720STC, a direct replacement retaining the exact body profile, force, port size, and SC-series mounting accessories.
When upgrading, note that the SAU50X720STC uses current CMSG/DMSG/EMSG sensors instead of the older CS1-B/DS1-B switches. The new SAU line also offers a SAUF variant with a built-in 4M solenoid valve, an option the SU lacked.
Airtac SU32~50 Standard Cylinder SU50X720STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X720STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X720STC |
| Bore size | Ø50 mm |
| Stroke | 720 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 SAU50X720STC 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 SAU50X720STC 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 SU50X720STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×720 | 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 SU50X720STC Is Used
Long-Stroke Diversion
Pushes packages across a 720mm conveyor lane using the TC mount, relying on the 982 N push force at 0.5 MPa to handle heavy cartons smoothly.
Assembly Line Indexing
Shifts a machining pallet down the line, using adjustable end cushions to decelerate the load before it reaches the stroke limit.
Replacing the Airtac SU32~50 Standard Cylinder SU50X720STC with the SAU50X720STC
To replace the SU50X720STC, order the SAU50X720STC, confirming the 50mm bore, 720mm stroke, 1/4" port, M16x1.5 rod thread, and TC mounting. Because this SKU includes a magnet (-S), you must switch from legacy CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensors. Sizing alternatives: step down to a 40mm bore for lighter loads, or up to a 63mm bore (2182 N push at 0.7 MPa) for heavier demands. For the 720mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts without live air; the cushions only decelerate. Use an external rod lock or pilot-operated check valve for load holding. If valve integration is needed, consider the SAUF built-in-valve option.
Replacement checklist
- ✓ Same bore / stroke → SAU50X720STC
- ✓ 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 SU50X720STC FAQ
Yes, the SU50X720STC is discontinued. The direct replacement is the AirTAC SAU50X720STC. It matches the 50mm bore, 720mm stroke, 1/4" port, output force, and TC mounting interface, fitting the exact same application.
The 50mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a 200 kgf maximum at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X720STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X720STC replacement — usually within 7-8 hours.