This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1200, 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 SU50X1200 is a double-acting profile-type standard cylinder with a Ø50mm bore and 1200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1200, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1200 is a discontinued double-acting profile-type cylinder with a 50mm bore and 1200mm stroke. It features an extruded aluminium barrel with adjustable air cushions at both ends, making it shorter and more compact than an ISO 15552 cylinder of the same bore while sharing AirTAC SC-series mounting accessories. Delivering a thrust of 982 N at 0.5 MPa, it is replaced directly by the SAU50X1200.
The SAU50X1200 is a direct replacement: identical body, 1/4" port, M16x1.5 rod thread, force, and SC-series mounting. The upgrade introduces current CMSG/DMSG/EMSG sensors (this non-magnetic SU SKU cannot take a switch) and adds the SAUF built-in-valve variant the SU line lacked.
| Model | Airtac SU32~50 Standard Cylinder SU50X1200 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1200 |
| Bore size | Ø50 mm |
| Stroke | 1200 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 SAU50X1200 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 SAU50X1200 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. |
| ×1200 | 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 products between conveyor lanes over a 1200mm distance using the 982 N thrust at 0.5 MPa, requiring external guides to prevent rod bending.
Ejects machined parts from a compact fixture where an ISO 15552 cylinder would not fit, reusing existing SC-series mounting brackets.
To replace this SU50X1200, order the SAU50X1200 direct equivalent, confirming the 50mm bore, 1200mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU lacks a magnet (-S), it cannot accept a sensor; if sensing is needed, specify an SAU-S model and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For loads needing holding on air loss, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. At 1200mm, use external guides to prevent rod bending and side-load wear. Sizing either way: a 63mm bore yields 1559 N push at 0.5 MPa, while dropping to 40mm gives 628 N.
Replacement checklist
Yes, the SU50X1200 is discontinued. The direct replacement is the AirTAC SAU50X1200. It matches the 50mm bore, 1200mm stroke, 982 N force at 0.5 MPa, 1/4" port, and SC-series mounting. You simply order the SAU equivalent.
The 50mm bore delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a 200 kgf max at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor. The SAU replacement supports CMSG/DMSG/EMSG switches on its -S variants.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1200 replacement — usually within 7-8 hours.