This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X1150, 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 SU50X1150 is a double-acting profile-type standard cylinder with a Ø50mm bore and 1150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X1150, which matches its bore, stroke, force and mounting.
The AirTAC SU50X1150 is a discontinued double-acting profile-type cylinder featuring a 50mm bore and a 1150mm stroke. Delivering 982 N push force at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same size. The direct replacement is the SAU50X1150, which preserves the original bore, stroke, 1/4" port, and SC-series mounting.
Because this SKU lacks a magnet (-S), it cannot accept a magnetic sensor. The SAU upgrade introduces current CMSG/DMSG/EMSG switches for sensed versions, plus a new SAUF built-in-valve option. Note that a plain cylinder drifts on air loss; use an external rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU50X1150 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X1150 |
| Bore size | Ø50 mm |
| Stroke | 1150 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 SAU50X1150 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 SAU50X1150 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. |
| ×1150 | 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 wide sorting lane over 1150mm, utilizing the 982 N push force to deflect heavy cartons without lateral deflection when externally guided.
Clears finished parts from deep machinery beds, using the compact 50mm profile body to fit tight spaces while achieving full 1150mm ejection travel.
To replace this discontinued SU50X1150, order the SAU50X1150 direct equivalent, confirming the 50mm bore, 1150mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Since this specific SKU has no magnet, it cannot support sensors; if you need position detection, select an SAU-S model and upgrade to CMSG/DMSG/EMSG switches. For load sizing, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. At 1150mm, this long stroke demands external guides to prevent rod bending under side loads. Finally, the air cushion only decelerates the piston; it does not hold the load, so add a pilot-operated check valve for vertical applications.
Replacement checklist
Yes, the SU50X1150 is discontinued. The direct replacement is the AirTAC SAU50X1150. It offers the exact same 50mm bore, 1150mm stroke, 1/4" port, output force, and SC-series mounting compatibility, so it fits the same application without modification.
This 50mm bore cylinder delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept sensors. Sensed versions require the SAU replacement using CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X1150 replacement — usually within 7-8 hours.