This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X350H, 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 SU50X350H is a double-acting profile-type standard cylinder with a Ø50mm bore and 350mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X350H, which matches its bore, stroke, force and mounting.
The AirTAC SU50X350H is a discontinued double-acting profile-type cylinder with a 50mm bore, 350mm stroke, and Viton H high-temperature seals rated for 0 to 150 C. It delivers 982 N push force at 0.5 MPa through a 1/4 inch port. AirTAC replaced this end-of-life unit with the SAU50X350H, a direct replacement retaining the exact bore, stroke, force, port, and SC-series mounting footprint.
Because this is a non-magnetic SKU, it cannot accept a sensor. The SAU upgrade introduces the SAUF variant with a built-in 4M solenoid valve, which the SU line lacked. Note that the 350mm stroke requires external guides to prevent rod bending under side loads.
| Model | Airtac SU32~50 Standard Cylinder SU50X350H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X350H |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAU50X350H 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 SAU50X350H 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. |
| ×350 | 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.
Uses the Viton H high-temperature seals to push parts out of 150 C drying ovens without degrading.
Handles 350mm stroke to shift products between parallel conveyor lines, guided externally to prevent rod bending.
Provides 982 N of push force at 0.5 MPa for securing medium workpieces during machining operations.
To replace this discontinued SU50X350H, order the SAU50X350H direct equivalent, matching the 50mm bore, 350mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. Confirm your thread standard (PT, G, or NPT) and retain the Viton H seal for 150 C environments. As a non-magnetic SKU, this cylinder cannot support sensing; if you need position detection, switch to an SAU-S model and upgrade to CMSG/DMSG/EMSG switches. For loads requiring holding without live air, add an external rod lock or pilot-operated check valve, as cushions only decelerate. With a 350mm stroke, use external guides to prevent rod bending. If you need more force, the 63mm bore offers 1559 N push at 0.5 MPa; if less is acceptable, the 40mm bore provides 628 N.
Replacement checklist
Yes, the SU50X350H is discontinued. The direct replacement is the SAU50X350H, which shares the same 50mm bore, 350mm stroke, output force, 1/4" port, and SC-series mounting.
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. This specific SKU lacks a magnet, so it cannot accept sensors; the SAU-S replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X350H replacement — usually within 7-8 hours.