This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X300TC, 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 SU50X300TC is a double-acting profile-type standard cylinder with a Ø50mm bore and 300mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X300TC, which matches its bore, stroke, force and mounting.
The AirTAC SU50X300TC is a discontinued double-acting profile-type cylinder with a 50mm bore and 300mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. The direct replacement is the SAU50X300TC, matching the bore, stroke, force, port, and TC mounting exactly.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also introduces the SAUF built-in-valve variant the SU line never had.
| Model | Airtac SU32~50 Standard Cylinder SU50X300TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X300TC |
| Bore size | Ø50 mm |
| Stroke | 300 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 SAU50X300TC 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 SAU50X300TC 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. |
| ×300 | 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.
Drives a 300mm stroke diverter arm on a packaging line, providing 982N push at 0.5MPa to reliably redirect medium-weight cartons without requiring ISO standard footprints.
The TC mount allows trunnion pivoting, while the compact profile saves vertical space in tight depalletizer cells.
Ejects machined aluminium components from a fixture, utilizing the 21mm adjustable air cushions at both ends to decelerate the 20mm rod smoothly over the long 300mm travel.
To replace this discontinued SU50X300TC, order the SAU50X300TC. Confirm the 50mm bore, 300mm stroke, 1/4" port, M16x1.5 rod thread, and TC mounting interface. Since this SKU has no magnet (-S), it cannot support sensing; if you need position detection on the SAU, specify the -S option and migrate to current CMSG/DMSG/EMSG switches (the legacy CS1-B/DS1-B are obsolete). For loads needing holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. With the 300mm stroke, use an external guide to prevent rod bending under side loads. If downsizing, a 40mm bore gives 628N push; if upsizing, a 63mm bore provides 1559N.
Replacement checklist
Yes, the AirTAC SU50X300TC is discontinued and end-of-life. The direct replacement is the SAU50X300TC. It features the same 50mm bore, 300mm stroke, 982N force, 1/4" port, and TC mounting. The body, bore, stroke, force, port, and SC-series mounting accessories remain completely unchanged.
At 0.5MPa it provides 982N push and 825N pull; at 0.7MPa push is 1374N, and the theoretical maximum is 200kgf at 1.0MPa. This specific SKU lacks a magnet and cannot accept a sensor. The SAU replacement supports CMSG/DMSG/EMSG switches if you order the -S variant, replacing the legacy CS1-B/DS1-B sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X300TC replacement — usually within 7-8 hours.