This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X225-30S, 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 Airtac SUJ Adjustable Cylinder SUJ100X225-30S is a double-acting profile-type standard cylinder with a Ø100mm bore and 225mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X225-30S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X225-30S is a double-acting double-rod adjustable-stroke profile cylinder, now discontinued. It features a 100mm bore, 1/2" port, and a 225mm nominal stroke that you can trim by up to 30mm on-site via an external stop screw, yielding a usable extend range of 195-225mm. The stop screw sets the end position but is not a load lock. This compact profile barrel is shorter than an ISO 15552 cylinder of the same bore. The direct replacement is the SAUJ100X225-30S, matching the bore, stroke, force, port, and FA/LB mounting.
The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches; the SAUJ replacement transitions to current CMSG/DMSG/EMSG sensors. Note that a plain cylinder drifts on air loss, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X225-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X225-30S |
| Bore size | Ø100 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X225-30S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X225-30S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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.
Adjusting the extend stroke on-site by up to 30mm allows operators to dial in the exact seating depth for bearings or pins without changing the entire cylinder setup.
Trimming the extend stroke from 225mm down to 195mm accommodates different package sizes on a packaging line, providing flexible sorting without mechanical rebuilds.
Setting a precise end position between 195mm and 225mm is ideal for palletizing tasks where the load height varies and a hard mechanical stop is required at different lengths.
To replace the discontinued SUJ100X225-30S, order the direct replacement SAUJ100X225-30S, which retains the 100mm bore, 225mm stroke, 30mm adjust window, 1/2" port, and FA/LB mounting. Choose the 30mm adjust window when you need precise on-site extend tuning between 195-225mm, which often beats installing a fixed-stroke cylinder with an external stop. If your stroke is 300mm or longer, verify side-load limits to prevent rod binding. The -S magnet upgrade requires switching from legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches on the SAUJ.
Replacement checklist
Yes, the AirTAC SUJ100X225-30S is discontinued. The direct replacement is the SAUJ100X225-30S. It matches the 100mm bore, 225mm nominal stroke, 30mm adjust window, 1/2" port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
The external stop screw allows you to trim the extend stroke by up to 30mm on-site, giving a usable range of 195-225mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X225-30S replacement — usually within 7-8 hours.