This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X535, 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 SU50X535 is a double-acting profile-type standard cylinder with a Ø50mm bore and 535mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X535, which matches its bore, stroke, force and mounting.
The AirTAC SU50X535 is a discontinued double-acting profile-type cylinder with a 50mm bore and 535mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this EOL unit with the SAU50X535, a direct alternative retaining the exact bore, stroke, force, port, and SC-series mounting.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors, whereas this legacy SU lacked a magnet entirely and cannot accept sensing. The new SAUF variant offers a built-in valve the SU never had. Note that standard cushions only decelerate; they do not hold loads without air.
| Model | Airtac SU32~50 Standard Cylinder SU50X535 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X535 |
| Bore size | Ø50 mm |
| Stroke | 535 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 SAU50X535 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 SAU50X535 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. |
| ×535 | 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.
Actuates sliding safety gates on palletizing cells, leveraging the compact profile body to fit within tight machine guarding.
Ejects machined aluminum parts from a fixture, relying on adjustable end cushions to decelerate the rod smoothly over the long stroke.
To replace the SU50X535, order the SAU50X535, confirming the 50mm bore, 535mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. This SKU has no magnet, so it cannot accept switches; if sensing is needed, specify an SAU-S model and use CMSG/DMSG/EMSG sensors instead of legacy CS1-B/DS1-B. For loads needing 1374N at 0.7MPa, step up to a 63mm bore; for lighter 628N loads, a 40mm bore works. Because the 535mm stroke is long, use external guides to prevent rod bending and side-load wear. The cylinder will drift without air; use a pilot-operated check valve or rod lock for holding. Consider the SAUF for integrated valve control.
Replacement checklist
Yes, the SU50X535 is discontinued. The direct replacement is the AirTAC SAU50X535. It matches the 50mm bore, 535mm stroke, 982N force, 1/4" port, and SC-series mounting. You can install the SAU50X535 without modifying your existing assembly.
At 0.5MPa it pushes 982N and pulls 825N; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot accept sensors. If you need position detection, order the SAU50X535-S replacement, which uses current CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X535 replacement — usually within 7-8 hours.