This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1000S, 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 SU50X1000S is a double-acting profile-type standard cylinder with a Ø50mm bore and 1000mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1000S, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1000S is a discontinued double-acting profile-type cylinder with a 50mm bore and 1000mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this EOL unit with the SAU50X1000S, a direct alternative retaining the exact body, stroke, force and SC-series mounting.
The SAU upgrade adopts current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on this -S SKU, and introduces the SAUF valve-integrated variant. At 1000mm, external guides are critical to prevent rod bending.
| Model | Airtac SU32~50 Standard Cylinder SU50X1000S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1000S |
| Bore size | Ø50 mm |
| Stroke | 1000 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 SAU50X1000S 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 SAU50X1000S 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. |
| ×1000 | 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.
Pushes packages across a 1-meter transfer lane with a safe 589N working load, utilizing the 1000mm stroke to bridge wide conveyor gaps.
Shifts a machining pallet 1000mm down a track, taking advantage of the compact 50mm profile body and adjustable end cushions.
To replace the SU50X1000S, order the SAU50X1000S, confirming the 50mm bore, 1000mm stroke, M16x1.5 rod thread and 1/4" port. The -S magnet means you must switch sensing from CS1-B/DS1-B to CMSG/DMSG/EMSG switches. If you need higher force, the 63mm bore yields 1559N at 0.5MPa; if smaller fits, the 40mm bore yields 628N. Because the plain cylinder drifts without live air and the cushion only decelerates, use an external rod lock for held loads. For the 1000mm stroke, add external guides to prevent rod bending. Consider the SAUF variant if you need a built-in 4M solenoid valve.
Replacement checklist
Yes, the SU50X1000S is discontinued. The direct replacement is the SAU50X1000S. It matches the 50mm bore, 1000mm stroke, 982N force, 1/4" port and SC-series mounting. You simply order the SAU equivalent.
The 50mm bore yields 982N push and 825N pull at 0.5MPa, 1374N at 0.7MPa, and a 200kgf max at 1.0MPa. Because your SU has a -S magnet for CS1-B/DS1-B switches, the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1000S replacement — usually within 7-8 hours.