This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X415, 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 SU50X415 is a double-acting profile-type standard cylinder with a Ø50mm bore and 415mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X415, which matches its bore, stroke, force and mounting.
The AirTAC SU50X415 is a discontinued double-acting profile-type cylinder with a 50mm bore and 415mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 unit of the same bore and delivers 982 N of push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAU50X415, a direct replacement retaining the exact same body dimensions, 1/4" port, M16x1.5 rod thread, and SC-series mounting.
When upgrading, note that the SAU body also unlocks the SAUF variant featuring a built-in 4M solenoid valve for self-switching, an option the SU line never offered. Because this specific SU50X415 SKU lacks a magnet (-S), it cannot accept any magnetic position switch.
| Model | Airtac SU32~50 Standard Cylinder SU50X415 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X415 |
| Bore size | Ø50 mm |
| Stroke | 415 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 SAU50X415 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 SAU50X415 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. |
| ×415 | 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 medium-weight cartons off a sorting line using 982 N of thrust at 0.5 MPa, with the 415mm stroke clearing wide conveyor belts.
Ejects molded parts from deep press beds, utilizing the 415mm travel while relying on external guides to prevent rod bending over the extended length.
To replace the discontinued SU50X415, order the SAU50X415. Confirm your 1/4" port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, TC) as they carry over directly. If your application requires position sensing, you cannot add a sensor to this no-magnet SKU; you must specify an SAU50X415-S and migrate to the current CMSG/DMSG/EMSG sensor family, as the legacy CS1-B/DS1-B switches are obsolete. For force verification, the 50mm bore yields 982 N push and 825 N pull at 0.5 MPa; if you need less force, a 40mm bore provides 628 N push, or for more power, a 63mm bore yields 1559 N. Because the 415mm stroke is long, use external guides to prevent rod bending and side-load damage. A plain cylinder will not hold a load on air loss—the 21mm adjustable cushion only decelerates at stroke end—so add an external rod lock or pilot-operated check valve for suspended loads. You can also explore the SAUF50X415 if a built-in valve simplifies your plumbing.
Replacement checklist
Yes, the SU50X415 is discontinued. The direct replacement is the AirTAC SAU50X415. It shares the same 50mm bore, 415mm stroke, 1/4" port, output force, and SC-series mounting, so it fits the same application without mechanical modifications.
This 50mm bore cylinder provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept position sensors; the -S version uses legacy CS1-B/DS1-B switches, while the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X415 replacement — usually within 7-8 hours.