This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X75CA, 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 SU50X75CA is a double-acting profile-type standard cylinder with a Ø50mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X75CA, which matches its bore, stroke, force and mounting.
The AirTAC SU50X75CA is a discontinued double-acting profile-type cylinder featuring a 50mm bore, 75mm stroke, and a CA mounting interface. It delivers 982 N push and 825 N pull at 0.5 MPa, utilizing a 1/4" port and a 20mm piston rod. AirTAC replaced this legacy unit with the SAU50X75CA, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting accessories.
Because this specific SKU lacks a magnet, it cannot accept a position switch. Upgrading to the SAU also shifts the sensor family from the legacy CS1-B/DS1-B to the modern CMSG/DMSG/EMSG series if sensing is later required, and introduces the SAUF built-in 4M valve variant.
| Model | Airtac SU32~50 Standard Cylinder SU50X75CA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X75CA |
| Bore size | Ø50 mm |
| Stroke | 75 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 SAU50X75CA 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 SAU50X75CA 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. |
| ×75 | 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.
Securing mid-weight machined components during milling or drilling, utilizing the 982 N push force at 0.5 MPa for rigid holding.
Actuating a pusher arm at packaging stations to sort goods, where the 75mm stroke provides rapid lateral displacement.
Deploying a pneumatic stop gate on a roller conveyor to halt pallets for pickup, using the CA mount for secure anchoring.
To replace this SU50X75CA, order the SAU50X75CA and confirm the 50mm bore, 75mm stroke, 1/4" port with PT thread, M16x1.5 rod thread, and CA mounting bracket. Since this SKU has no magnet (-S), it cannot support a sensor; if you need position detection on the new unit, you must add the magnet and use CMSG/DMSG/EMSG switches. When sizing, check neighbouring bores: a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. For load holding, note that a standard cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for suspended loads.
Replacement checklist
Yes, the SU50X75CA is discontinued. The direct replacement is the AirTAC SAU50X75CA. It shares the identical 50mm bore, 75mm stroke, 1/4" port, output force, and CA mounting interface, fitting the same application footprint.
It 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 a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is added.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X75CA replacement — usually within 7-8 hours.