This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1020, 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 SU50X1020 is a double-acting profile-type standard cylinder with a Ø50mm bore and 1020mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1020, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1020 is a discontinued double-acting profile-type standard cylinder with a 50 mm bore and 1020 mm stroke. It features an extruded aluminum barrel and adjustable air cushions at both ends, making it more compact than an ISO 15552 cylinder of the same bore. Delivering 982 N push force at 0.5 MPa through a 1/4" port, this end-of-life unit is replaced by the SAU50X1020.
The SAU50X1020 is a direct replacement retaining the exact bore, stroke, force, port, and SC-series mounting. Note that this non-magnetic SKU cannot accept a sensor, and while the SAU upgrade adds a built-in SAUF valve option, it cannot hold a load without live air.
| Model | Airtac SU32~50 Standard Cylinder SU50X1020 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1020 |
| Bore size | Ø50 mm |
| Stroke | 1020 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 SAU50X1020 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 SAU50X1020 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. |
| ×1020 | 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 transferring heavy pallets across wide conveyor gaps using the full 1020 mm travel and 982 N push force at 0.5 MPa.
Drives long-distance package diverters on high-speed packaging lines where compact profile body width saves valuable floor space.
To replace the SU50X1020, order the SAU50X1020 and verify your 1/4" port, M16x1.5 rod thread, and SC-series mounting hardware. Because this 1020 mm stroke exceeds typical lengths, you must use external guides to prevent rod bending and side-load damage. If sizing alternatives, a 40 mm bore yields 628 N push at 0.5 MPa, while a 63 mm bore provides 1559 N. This non-magnet version cannot take a sensor; if you need position detection, select an -S model (SAU uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B). Remember that a standard cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock for held loads.
Replacement checklist
Yes, the AirTAC SU50X1020 is discontinued. The direct replacement is the SAU50X1020. It shares the identical 50 mm bore, 1020 mm stroke, 982 N output force, 1/4" port, and SC-series mounting, so it bolts right in. The SAU also introduces the SAUF built-in-valve variant which the SU line lacked.
At 0.5 MPa it provides 982 N push and 825 N pull force, rising to 1374 N push at 0.7 MPa, with a theoretical max of 200 kgf at 1.0 MPa. This specific SKU lacks a magnet (-S), so it cannot accept magnetic switches; the SAU -S equivalent uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1020 replacement — usually within 7-8 hours.