This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X110S, 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.

The AirTAC SU32~50 Standard Cylinder SU50X110S is a double-acting profile-type standard cylinder with a Ø50mm bore and 110mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X110S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X110S is a discontinued double-acting profile-type cylinder with a 50mm bore, 110mm stroke, and a built-in piston magnet. It delivers 982 N push force at 0.5 MPa. AirTAC replaced this unit with the SAU50X110S, a direct equivalent retaining the exact 50mm bore, 110mm stroke, 1/4" port, and SC-series mounting footprint.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace this unit's legacy CS1-B/DS1-B switches, and offers a new SAUF variant with a built-in 4M solenoid valve. The extruded aluminum body remains shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU32~50 Standard Cylinder SU50X110S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X110S |
| Bore size | Ø50 mm |
| Stroke | 110 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 SAU50X110S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X110S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×110 | 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.
Ideal for mid-force 982 N clamping of aluminum housings on a machining fixture, utilizing the 110mm stroke to clear the workpiece during part loading.
Drives a routing flap on a packaging conveyor, where the 50 kg vertical lift capacity and compact profile body fit neatly within tight transfer gaps.
Acts as a pneumatic stop for 50kg pallets on a gravity roller track, using adjustable 21mm cushions to absorb the impact without external shock absorbers.
To replace this SU50X110S, order the SAU50X110S, confirming the 50mm bore, 110mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Because your model has the -S magnet, you must upgrade your switches: the SAU uses CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B reed switches. If you need to adjust force, the neighboring 40mm bore provides 628 N push at 0.5 MPa, while the 63mm bore offers 1559 N. Note that a standard cylinder drifts without live air—the 21mm cushions only decelerate the piston, so install an external rod lock or pilot-operated check valve for held loads. If your cycle timing demands integrated control, consider the SAUF valve-cylinder variant.
Replacement checklist
Yes, the AirTAC SU50X110S is discontinued. The direct replacement is the SAU50X110S. It shares the identical 50mm bore, 110mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it bolts right in. The only change is that your -S magnet will require upgrading from CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
The 1/4" port is fixed by the 50mm bore. At 0.5 MPa it provides 982 N push and 825 N pull force. At 0.7 MPa the push is 1374 N, and at 0.9 MPa it is 1767 N. The theoretical maximum force is 200 kgf at 1.0 MPa. Operating speed ranges from 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X110S replacement — usually within 7-8 hours.