This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X700SH, 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 SU50X700SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X700SH, which matches its bore, stroke, force and mounting.
The AirTAC SU50X700SH is a discontinued double-acting profile-type cylinder with a 50mm bore and 700mm stroke. It delivers 982 N push force at 0.5 MPa and features a high-temperature Viton H seal (0-150 C). AirTAC replaced this unit with the SAU50X700SH, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series mounting.
The SAU replacement introduces current CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches used on this -S model, and adds a new SAUF built-in-valve option. Note that at 700mm, external guides are recommended to prevent rod bending.
| Model | Airtac SU32~50 Standard Cylinder SU50X700SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X700SH |
| Bore size | Ø50 mm |
| Stroke | 700 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 SAU50X700SH 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 SAU50X700SH 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. |
| ×700 | 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.
Actuating routing gates on warm material conveyors where the Viton H seal survives ambient heat that degrades standard TPU.
Opening and closing insulated industrial oven doors, taking advantage of the 0-150 C temperature rating and 982 N thrust.
To replace the SU50X700SH, order the SAU50X700SH direct: it matches the 50mm bore, 700mm stroke, 1/4" port, and SC mounting. Because the -S magnet is present, prepare to upgrade your legacy CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensors. For higher force needs, stepping up to a 63mm bore yields 1559 N at 0.5 MPa; conversely, a 40mm bore offers 628 N. At 700mm, use external guides to prevent rod-bending side loads. This cylinder does not hold load without live air; use an external rod lock or pilot-operated check valve for vertical holding, as cushions only decelerate. The SAUF variant offers a built-in valve if needed.
Replacement checklist
Yes, the SU50X700SH is discontinued. The direct replacement is the AirTAC SAU50X700SH. It shares the same 50mm bore, 700mm stroke, 1/4" port, output force, and SC-series mounting, but uses current CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
At 0.5 MPa it pushes 982 N and pulls 825 N. Push force is 1374 N at 0.7 MPa, and the theoretical max is 200 kgf at 1.0 MPa. The -S magnet works with legacy CS1-B/DS1-B switches; if ordering the SAU replacement, you must switch to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X700SH replacement — usually within 7-8 hours.