This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X64, 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 SU50X64 is a double-acting profile-type standard cylinder with a Ø50mm bore and 64mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X64, which matches its bore, stroke, force and mounting.
The AirTAC SU50X64 is a discontinued double-acting profile-type cylinder with a 50mm bore and 64mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa, making it a solid mid-range actuator. AirTAC replaced this legacy unit with the SAU50X64, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, body dimensions, and SC-series mounting hardware.
This SKU lacks a magnet and cannot accept a sensor. If you previously used an -S variant, note the SAU replacement upgrades sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG models. The SAU family also introduces the SAUF valve-integrated option, which the SU line never offered.
| Model | Airtac SU32~50 Standard Cylinder SU50X64 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X64 |
| Bore size | Ø50 mm |
| Stroke | 64 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 SAU50X64 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 SAU50X64 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. |
| ×64 | 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, fitting neatly into existing conveyor frames.
Secures workpieces during machining operations, providing a reliable 825 N pull force while maintaining a compact profile body.
To replace this SU50X64, order the SAU50X64 with the same 50mm bore, 64mm stroke, and 1/4" port. Confirm your thread (PT, G, or NPT) and SC-series mounting (LB, FA, FB, CA, CB, TC). Because this specific SKU has no magnet, it cannot hold a sensor; if your application requires position detection, order the SAU50X64S and upgrade to CMSG/DMSG/EMSG switches. If you need higher force, the 63mm bore provides 1559 N push at 0.5 MPa; for lighter loads, the 40mm bore offers 628 N. Remember, a standard cylinder drifts without live air—the cushions only decelerate near stroke end—so add an external rod lock or pilot-operated check valve for secure load holding. For automated actuation, consider the SAUF variant with its built-in 4M solenoid valve.
Replacement checklist
Yes, the SU50X64 is discontinued. The direct replacement is the AirTAC SAU50X64. It shares the same 50mm bore, 64mm stroke, 1/4" port, output force, and SC-series mounting accessories, so it fits the same application directly.
At 0.5 MPa it provides 982 N push and 825 N pull; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. This specific SU50X64 SKU has no magnet and cannot accept a sensor. If you need sensing, order the SAU50X64S replacement, which uses current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X64 replacement — usually within 7-8 hours.