This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X800, 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 Airtac SU32~50 Standard Cylinder SU50X800 is a double-acting profile-type standard cylinder with a Ø50mm bore and 800mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X800, which matches its bore, stroke, force and mounting.
The AirTAC SU50X800 is a discontinued double-acting profile-type cylinder with a 50mm bore and 800mm stroke, delivering 982N push force at 0.5MPa. AirTAC replaced it with the SAU50X800, a direct upgrade retaining the exact body, 1/4" port, M16x1.5 rod thread, and SC-series mounting. This extruded aluminium barrel is shorter than an ISO 15552 cylinder of the same bore.
Because this SKU lacks a magnet, it cannot accept a sensor. If sensing is needed, the SAU replacement uses modern CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Note the SAU line also adds a SAUF valve-integrated variant the SU lacked.
| Model | Airtac SU32~50 Standard Cylinder SU50X800 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X800 |
| Bore size | Ø50 mm |
| Stroke | 800 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 SAU50X800 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 SAU50X800 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. |
| ×800 | 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 800mm transfer belt with a safe 589N working load, utilizing the compact profile body to save machine space.
Raises lightweight pallets or trays up to 50kg through the 800mm travel, requiring an external guide to prevent rod bending on the ascent.
Cycles finished parts out of a machining zone over an 800mm distance, relying on adjustable air cushions to decelerate the payload smoothly.
To replace this discontinued SU50X800, order the SAU50X800 direct: confirm the 50mm bore, 800mm stroke, 1/4" port, M16x1.5 thread, and SC-series mounting. This no-magnet SKU cannot take a switch; if you need sensing, the SAU uses CMSG/DMSG/EMSG sensors. For loads needing holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. With an 800mm stroke, prevent rod bending by using an external guide to absorb side loads. If you need more force, the 63mm bore offers 1559N push at 0.5MPa; if less is acceptable, the 40mm bore provides 628N. The SAUF variant offers a built-in valve if desired.
Replacement checklist
Yes, the SU50X800 is discontinued. The direct replacement is the AirTAC SAU50X800. It shares the same 50mm bore, 800mm stroke, 982N output force, 1/4" port, and SC-series mounting, so it fits the same application directly.
It delivers 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. The cylinder cannot hold a load without live air; the cushions only decelerate. For load holding, use an external rod lock or pilot-operated check valve.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X800 replacement — usually within 7-8 hours.