This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X100N, 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 SU50X100N is a double-acting profile-type standard cylinder with a Ø50mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X100N, which matches its bore, stroke, force and mounting.
The AirTAC SU50X100N is a discontinued double-acting profile-type cylinder with a 50mm bore and 100mm stroke. It delivers 982N push and 825N pull at 0.5MPa, utilizing a 1/4" port and M16x1.5 rod thread. Because this SU series is end-of-life, you should order the direct replacement: the SAU50X100N. The SAU shares the same extruded aluminum profile body, bore, stroke, output force, port size, and SC-series mounting accessories, fitting your existing application perfectly.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a new SAUF variant with a built-in 4M solenoid valve, features the SU line lacked. This specific N-suffix SKU uses NBR seals (temperature -20 to +70C) and lacks a magnet, so it cannot accept a sensor switch.
| Model | Airtac SU32~50 Standard Cylinder SU50X100N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X100N |
| Bore size | Ø50 mm |
| Stroke | 100 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 SAU50X100N 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 SAU50X100N 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. |
| ×100 | 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.
Secures sheet metal or composite parts in CNC machining fixtures, utilizing the 982N push force at 0.5MPa for rigid, 50kg-class holding.
Actuates 100mm stroke routing gates on packaging lines to sort medium-weight cartons without requiring external ISO 15552 tie-rod bulk.
To replace this discontinued SU50X100N, order the SAU50X100N, confirming the 50mm bore, 100mm stroke, 1/4" port, and NBR seal option. Because this SKU has no magnet (-S), it cannot support position sensing; if you need switches on the SAU, you must select an -S model and use CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. If sizing both ways, a 40mm bore yields 628N push at 0.5MPa while a 63mm bore yields 1559N. For load holding, note that a plain cylinder drifts on air loss—the 21mm adjustable cushions only decelerate near stroke ends—so add an external rod lock or pilot-operated check valve for suspended loads. The SAUF valve-integrated option is available if you need self-switching.
Replacement checklist
Yes, the AirTAC SU50X100N is discontinued. The direct replacement is the SAU50X100N. It matches the 50mm bore, 100mm stroke, 1/4" port, force, and SC-series mounting, fitting the same profile body footprint.
It delivers 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a theoretical max of 200kgf at 1.0MPa. This N-suffix SKU has no magnet and cannot take a sensor; the SAU replacement with a magnet uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X100N replacement — usually within 7-8 hours.