This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X50SH, 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 SU32X50SH is a double-acting profile-type standard cylinder with a Ø32mm bore and 50mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X50SH, which matches its bore, stroke, force and mounting.
The AirTAC SU32X50SH is a discontinued double-acting profile-type cylinder featuring a 32mm bore, 50mm stroke, and a high-temperature Viton H seal rated for 0-150 C. It delivers 402 N push force at 0.5 MPa through a 1/8" port. AirTAC replaced this legacy unit with the SAU32X50SH, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SU model includes a magnet (-S), it originally worked with legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU32~50 Standard Cylinder SU32X50SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X50SH |
| Bore size | Ø32 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X50SH carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X50SH 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). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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.
Ideal for pushing lightweight molded components out of a 150 C hot stamping press using the Viton H seal.
Provides the 402 N push at 0.5 MPa needed to actuate a routing gate on a compact packaging line.
Handles the 50mm stroke to open and close small access hatches on material handling stations safely.
To replace this SU32X50SH, order the SAU32X50SH. Verify your 1/8" port threads (PT, G, or NPT) and SC-series mounting hardware, as the SAU shares identical dimensions. If your application requires position sensing, note the sensor family changes: the SU used CS1-B/DS1-B switches, while the SAU requires CMSG/DMSG/EMSG sensors. For higher flow control, the SAU line offers a SAUF variant with a built-in 4M solenoid valve that the SU lacked. When sizing, the 32mm bore provides 402 N push at 0.5 MPa; if you need less force, step down, or step up to a 40mm bore for 628 N. Remember that a standard cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for vertical holding.
Replacement checklist
Yes, the AirTAC SU32X50SH is discontinued. The direct replacement is the SAU32X50SH. It matches the 32mm bore, 50mm stroke, 1/8" port, and SC-series mounting, while adding compatibility with current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 32mm bore operates on a 1/8" port and delivers 402 N push and 345 N pull at 0.5 MPa. At 0.7 MPa it pushes 563 N, and 724 N at 0.9 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa. The -H seal allows operation up to 150 C.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X50SH replacement — usually within 7-8 hours.